diff --git a/IC/IC.kicad_sym b/IC/IC.kicad_sym
index 2ba3ed4..c43bf15 100644
--- a/IC/IC.kicad_sym
+++ b/IC/IC.kicad_sym
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diff --git a/Resistors/Resistros.pretty/R_0201.kicad_mod b/Resistors/Resistors.pretty/R_0201.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_0201.kicad_mod
rename to Resistors/Resistors.pretty/R_0201.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_0402.kicad_mod b/Resistors/Resistors.pretty/R_0402.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_0402.kicad_mod
rename to Resistors/Resistors.pretty/R_0402.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_0603.kicad_mod b/Resistors/Resistors.pretty/R_0603.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_0603.kicad_mod
rename to Resistors/Resistors.pretty/R_0603.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_0805.kicad_mod b/Resistors/Resistors.pretty/R_0805.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_0805.kicad_mod
rename to Resistors/Resistors.pretty/R_0805.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_1206.kicad_mod b/Resistors/Resistors.pretty/R_1206.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_1206.kicad_mod
rename to Resistors/Resistors.pretty/R_1206.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_1210.kicad_mod b/Resistors/Resistors.pretty/R_1210.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_1210.kicad_mod
rename to Resistors/Resistors.pretty/R_1210.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_1808.kicad_mod b/Resistors/Resistors.pretty/R_1808.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_1808.kicad_mod
rename to Resistors/Resistors.pretty/R_1808.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_1812.kicad_mod b/Resistors/Resistors.pretty/R_1812.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_1812.kicad_mod
rename to Resistors/Resistors.pretty/R_1812.kicad_mod
diff --git a/Resistors/Resistros.pretty/R_2220.kicad_mod b/Resistors/Resistors.pretty/R_2220.kicad_mod
similarity index 100%
rename from Resistors/Resistros.pretty/R_2220.kicad_mod
rename to Resistors/Resistors.pretty/R_2220.kicad_mod
diff --git a/Transistor/Transistor.kicad_sym b/Transistor/Transistor.kicad_sym
new file mode 100644
index 0000000..01e0eb6
--- /dev/null
+++ b/Transistor/Transistor.kicad_sym
@@ -0,0 +1,208 @@
+(kicad_symbol_lib
+	(version 20241209)
+	(generator "kicad_symbol_editor")
+	(generator_version "9.0")
+	(symbol "NPN"
+		(pin_numbers
+			(hide yes)
+		)
+		(pin_names
+			(offset 0)
+			(hide yes)
+		)
+		(exclude_from_sim no)
+		(in_bom yes)
+		(on_board yes)
+		(property "Reference" "VT"
+			(at 17.5 2 0)
+			(effects
+				(font
+					(size 2.1844 2.1844)
+				)
+			)
+		)
+		(property "Value" "?"
+			(at 16.25 -2.5 0)
+			(effects
+				(font
+					(size 2.1844 2.1844)
+				)
+				(justify left bottom)
+			)
+		)
+		(property "Footprint" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Datasheet" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(property "Description" ""
+			(at 0 0 0)
+			(effects
+				(font
+					(size 1.27 1.27)
+				)
+				(hide yes)
+			)
+		)
+		(symbol "NPN_1_0"
+			(polyline
+				(pts
+					(xy 2.5 0) (xy 8 0)
+				)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
+				)
+				(fill
+					(type none)
+				)
+			)
+			(polyline
+				(pts
+					(xy 8 4.5) (xy 8 -4.5)
+				)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
+				)
+				(fill
+					(type none)
+				)
+			)
+			(polyline
+				(pts
+					(xy 8 2.4) (xy 12.5 5)
+				)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
+				)
+				(fill
+					(type none)
+				)
+			)
+			(polyline
+				(pts
+					(xy 8 -2.4) (xy 12.5 -5)
+				)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
+				)
+				(fill
+					(type none)
+				)
+			)
+			(circle
+				(center 9.5 0)
+				(radius 6)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
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+				(fill
+					(type none)
+				)
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+				)
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+				(fill
+					(type none)
+				)
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+					(xy 12.5 -5) (xy 10.25 -3.05)
+				)
+				(stroke
+					(width 0)
+					(type solid)
+					(color 0 0 0 1)
+				)
+				(fill
+					(type none)
+				)
+			)
+			(pin input line
+				(at 0 0 0)
+				(length 2.5)
+				(name "B"
+					(effects
+						(font
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+						)
+					)
+				)
+				(number "1"
+					(effects
+						(font
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+					)
+				)
+			)
+			(pin passive line
+				(at 12.5 7.5 270)
+				(length 2.5)
+				(name "C"
+					(effects
+						(font
+							(size 1.27 1.27)
+						)
+					)
+				)
+				(number "3"
+					(effects
+						(font
+							(size 1.27 1.27)
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+					)
+				)
+			)
+			(pin passive line
+				(at 12.5 -7.5 90)
+				(length 2.5)
+				(name "E"
+					(effects
+						(font
+							(size 1.27 1.27)
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+					)
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+				(number "2"
+					(effects
+						(font
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+		)
+		(embedded_fonts no)
+	)
+)
diff --git a/Transistor/Transistor.pretty/SOT-23.kicad_mod b/Transistor/Transistor.pretty/SOT-23.kicad_mod
new file mode 100644
index 0000000..5bb1813
--- /dev/null
+++ b/Transistor/Transistor.pretty/SOT-23.kicad_mod
@@ -0,0 +1,353 @@
+(footprint "SOT-23"
+	(version 20241229)
+	(generator "pcbnew")
+	(generator_version "9.0")
+	(layer "F.Cu")
+	(descr "SOT, 3 Pin (JEDEC TO-236 Var AB https://www.jedec.org/document_search?search_api_views_fulltext=TO-236), generated with kicad-footprint-generator ipc_gullwing_generator.py")
+	(tags "SOT TO_SOT_SMD")
+	(property "Reference" "REF**"
+		(at 0 -2.4 0)
+		(layer "F.SilkS")
+		(uuid "7123b989-db54-4502-bb18-a302ef34c94f")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Value" "SOT-23"
+		(at 0 2.4 0)
+		(layer "F.Fab")
+		(uuid "ee5aaf63-c4e3-4e2a-8cef-66e098afe8e2")
+		(effects
+			(font
+				(size 1 1)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Datasheet" ""
+		(at 0 0 0)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "e08f463e-238d-4b95-8b27-2a8ca12e4d6f")
+		(effects
+			(font
+				(size 1.27 1.27)
+				(thickness 0.15)
+			)
+		)
+	)
+	(property "Description" ""
+		(at 0 0 0)
+		(layer "F.Fab")
+		(hide yes)
+		(uuid "8a2e1652-cb90-4513-9e8d-ba59624c92cf")
+		(effects
+			(font
+				(size 1.27 1.27)
+				(thickness 0.15)
+			)
+		)
+	)
+	(attr smd)
+	(fp_line
+		(start -0.76 -1.56)
+		(end 0.76 -1.56)
+		(stroke
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+			(type solid)
+		)
+		(layer "F.SilkS")
+		(uuid "8210d31f-50d0-4e4a-8db8-630da610d6f2")
+	)
+	(fp_line
+		(start -0.76 -1.51)
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+			(xy -1.3 -0.38) (xy -1.06 -0.05) (xy -1.54 -0.05)
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+		(fill yes)
+		(layer "F.SilkS")
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+		(start -1.93 -1.5)
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+		(start -1.93 1.5)
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+	)
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+		(start -0.9 -1.7)
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+		(stroke
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+			(type solid)
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+		(layer "F.CrtYd")
+		(uuid "eab38ada-d5a8-401f-b449-6451ad6b5f5a")
+	)
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+		(start -0.9 -0.39)
+		(end -1.93 -0.39)
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+		(uuid "0964951a-b062-4e0e-8c39-9d5f54375960")
+	)
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+		(start -0.9 0.39)
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+		(uuid "942a715f-cc20-493e-96e3-9814fcc72df0")
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+		(start -0.9 1.5)
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+		(uuid "b00a6061-e1ab-4780-b068-130b6422e4d8")
+	)
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+		(start -0.9 1.7)
+		(end -0.9 1.5)
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+		(layer "F.CrtYd")
+		(uuid "9f0685ca-5b48-4b09-a937-ab60e6f2b8ee")
+	)
+	(fp_line
+		(start 0.9 -1.7)
+		(end 0.9 -0.55)
+		(stroke
+			(width 0.05)
+			(type solid)
+		)
+		(layer "F.CrtYd")
+		(uuid "02900fe7-f8f5-4260-988c-5477dbee9266")
+	)
+	(fp_line
+		(start 0.9 -0.55)
+		(end 1.93 -0.55)
+		(stroke
+			(width 0.05)
+			(type solid)
+		)
+		(layer "F.CrtYd")
+		(uuid "cb953692-4706-4731-b98b-d89c163f8a24")
+	)
+	(fp_line
+		(start 0.9 0.55)
+		(end 0.9 1.7)
+		(stroke
+			(width 0.05)
+			(type solid)
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+		(uuid "75d449b3-4a2c-43e0-92c6-2c8ae084c8d3")
+	)
+	(fp_line
+		(start 0.9 1.7)
+		(end -0.9 1.7)
+		(stroke
+			(width 0.05)
+			(type solid)
+		)
+		(layer "F.CrtYd")
+		(uuid "0f9112b7-bd2b-42c5-bf46-0aeb0fd228d8")
+	)
+	(fp_line
+		(start 1.93 -0.55)
+		(end 1.93 0.55)
+		(stroke
+			(width 0.05)
+			(type solid)
+		)
+		(layer "F.CrtYd")
+		(uuid "05dc358f-61a9-4af1-bf5e-19e530628553")
+	)
+	(fp_line
+		(start 1.93 0.55)
+		(end 0.9 0.55)
+		(stroke
+			(width 0.05)
+			(type solid)
+		)
+		(layer "F.CrtYd")
+		(uuid "11e5bdfc-d369-4e0a-a459-71898fc3e35c")
+	)
+	(fp_poly
+		(pts
+			(xy -0.325 -1.45) (xy 0.65 -1.45) (xy 0.65 1.45) (xy -0.65 1.45) (xy -0.65 -1.125)
+		)
+		(stroke
+			(width 0.1)
+			(type solid)
+		)
+		(fill no)
+		(layer "F.Fab")
+		(uuid "2767c99c-f6cf-47ab-aeec-c8fdfc4b2563")
+	)
+	(fp_text user "${REFERENCE}"
+		(at 0 0 90)
+		(layer "F.Fab")
+		(uuid "9162f825-474a-4a69-91ca-1d9504e9a89d")
+		(effects
+			(font
+				(size 0.72 0.72)
+				(thickness 0.11)
+			)
+		)
+	)
+	(pad "1" smd roundrect
+		(at -0.9375 -0.95)
+		(size 1.475 0.6)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.25)
+		(uuid "fdd63784-f6eb-40fd-a2c3-aeeee30e328a")
+	)
+	(pad "2" smd roundrect
+		(at -0.9375 0.95)
+		(size 1.475 0.6)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.25)
+		(uuid "2be14dff-c136-4420-822d-8f9f366dc455")
+	)
+	(pad "3" smd roundrect
+		(at 0.9375 0)
+		(size 1.475 0.6)
+		(layers "F.Cu" "F.Mask" "F.Paste")
+		(roundrect_rratio 0.25)
+		(uuid "5bf7f4e8-f3d2-49e3-9ff7-2d948c690bc2")
+	)
+	(embedded_fonts no)
+	(model "${KICAD9_3DMODEL_DIR}/Package_TO_SOT_SMD.3dshapes/SOT-23.step"
+		(offset
+			(xyz 0 0 0)
+		)
+		(scale
+			(xyz 1 1 1)
+		)
+		(rotate
+			(xyz 0 0 0)
+		)
+	)
+)
diff --git a/eda-core.kicad_dbl b/eda-core.kicad_dbl
index 9db89d5..37fe878 100644
--- a/eda-core.kicad_dbl
+++ b/eda-core.kicad_dbl
@@ -24,7 +24,9 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": false},
-                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true}
+                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
                 "description": "description"
@@ -44,7 +46,9 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
-                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true}
+                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
                 "description": "description"
@@ -64,7 +68,9 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
-                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": false}
+                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": false},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
                 "description": "description"
@@ -84,7 +90,8 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": false},
-                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true}
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
                 "description": "description"
@@ -104,6 +111,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": false},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -124,6 +132,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -144,7 +153,9 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": false},
-                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true}
+                {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
                 "description": "description"
@@ -164,6 +175,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -184,6 +196,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -204,6 +217,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -224,6 +238,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -244,6 +259,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -264,6 +280,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -284,6 +301,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -304,6 +322,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -324,6 +343,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "tolerance",    "name": "Tolerance",    "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -344,6 +364,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -364,6 +385,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -384,6 +406,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -403,6 +426,7 @@
                 {"column": "mpn",          "name": "MPN",          "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -423,6 +447,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -443,6 +468,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": true},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -462,6 +488,7 @@
                 {"column": "mpn",          "name": "MPN",          "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": false},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {
@@ -482,6 +509,7 @@
                 {"column": "datasheet",    "name": "Datasheet",    "visible_on_add": false, "visible_in_chooser": false},
                 {"column": "package",      "name": "Package",      "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "voltage",      "name": "Voltage",      "visible_on_add": false, "visible_in_chooser": false},
+                {"column": "category",     "name": "Category",     "visible_on_add": false, "visible_in_chooser": true},
                 {"column": "subcategory",  "name": "Subcategory",  "visible_on_add": false, "visible_in_chooser": true}
             ],
             "properties": {