component
BC546-TA
Public Made by Adomby adom
Changjing Bipolar (BJT), TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"title": "BC546-TA",
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"category": "Transistors/Thyristors",
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"status": "quota"
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"number": "1",
"name": "COLLECTOR",
"type": "passive",
"description": "Collector terminal of the NPN transistor; the datasheet gives VCEO up to 65 V (BC546), IC continuous 0.1 A, and PC 625 mW for the device."
},
{
"number": "2",
"name": "BASE",
"type": "passive",
"description": "Base terminal of the NPN transistor; the datasheet gives VEBO up to 6 V (BC546/BC547) and 5 V (BC548) and the base-emitter drive conditions used for VBE(sat) (IC=100mA, IB=5mA)."
},
{
"number": "3",
"name": "EMITTER",
"type": "passive",
"description": "Emitter terminal of the NPN transistor; the datasheet gives the emitter-base breakdown condition IE=10μA, IC=0 with a minimum of 5 V to 6 V depending on variant."
}
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"extractor flagged: The datasheet lists the TO-92 pin assignment as a text label (1. COLLECTOR, 2. BASE, 3. EMITTER) wit; The MPN suffix '-TA' (likely a packing/taping code) is not explained in this datasheet. The pinout i; The datasheet covers the BC546/BC547/BC548 family, and the pin descriptions above cite ratings that "
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"sha256": "068ebd7ca4658019",
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"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 3,
"cites_pages": true,
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"sha256": "f0b61c32ecbf0067157adc5a3d4966ceadf5d6dafe93c51af35f76c41c71a54a",
"checked": "2026-10-18",
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"metadata": {
"specs": {
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"Package": "TO-92-3",
"Category": "Transistors/Thyristors",
"Pins": "3"
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"name": "Collector-emitter voltage (BC546)",
"symbol": "VCEO",
"kind": "absolute_maximum",
"unit": "V",
"min": null,
"typ": null,
"max": 65,
"conditions": "",
"source_page": 1,
"source": "datasheet"
},
{
"name": "Collector-base voltage (BC546)",
"symbol": "VCBO",
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"name": "Emitter-base voltage (BC546)",
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"name": "Collector current-continuous",
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},
{
"name": "Collector power dissipation",
"symbol": "PC",
"kind": "absolute_maximum",
"unit": "mW",
"min": null,
"typ": null,
"max": 625,
"conditions": "",
"source_page": 1,
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},
{
"name": "Junction temperature",
"symbol": "Tj",
"kind": "absolute_maximum",
"unit": "℃",
"min": null,
"typ": null,
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{
"name": "Storage temperature",
"symbol": "Tstg",
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"unit": "℃",
"min": -55,
"typ": null,
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},
{
"name": "Thermal resistance from junction to ambient",
"symbol": "RθJA",
"kind": "thermal",
"unit": "℃/W",
"min": null,
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"conditions": "",
"source_page": 1,
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},
{
"name": "Collector-base breakdown voltage (BC546)",
"symbol": "V(BR)CBO",
"kind": "electrical",
"unit": "V",
"min": 80,
"typ": null,
"max": null,
"conditions": "IC= 0.1mA,IE=0",
"source_page": 2,
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{
"name": "Collector-emitter breakdown voltage (BC546)",
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"min": 65,
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"min": 6,
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{
"name": "Collector cut-off current (BC546)",
"symbol": "ICBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "VCB=70V,IE=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Emitter cut-off current",
"symbol": "IEBO",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 0.1,
"conditions": "VEB=5V,IC=0",
"source_page": 2,
"source": "datasheet"
},
{
"name": "DC current gain",
"symbol": "hFE",
"kind": "electrical",
"unit": "",
"min": 110,
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"conditions": "VCE=5V, IC=2mA",
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{
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{
"name": "Base-emitter voltage",
"symbol": "VBE",
"kind": "electrical",
"unit": "V",
"min": 0.58,
"typ": null,
"max": 0.7,
"conditions": "VCE=5V, IC=2mA",
"source_page": 2,
"source": "datasheet"
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{
"name": "Base-emitter voltage",
"symbol": "VBE",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.75,
"conditions": "VCE=5V, IC=10mA",
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},
{
"name": "Collector output capacitance",
"symbol": "Cob",
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"unit": "pF",
"min": null,
"typ": null,
"max": 4.5,
"conditions": "VCB=10V,IE=0, f=1MHz",
"source_page": 2,
"source": "datasheet"
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{
"name": "Transition frequency",
"symbol": "fT",
"kind": "electrical",
"unit": "MH",
"min": 150,
"typ": null,
"max": null,
"conditions": "VCE=5V,IC=10mA, f=100MHz",
"source_page": 2,
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