component

BC548CTA

Public Made by Adom

by adom

onsemi Bipolar Transistors - BJT, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componenttransistorsbc548ctafactory-2.0.0extractor-text

Verified BC548CTA

by Ray · last 4 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

4 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: BC548CTA · TO-92-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 8-page datasheet
  • ✓distributor: lcsc C900802, digikey BC548CTAFSCT-ND, mouser 512-BC548CTA
  • ✓family: TO-92_Inline
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-_ayy0n2o/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ bc548cta.kicad_sym✓ bc548cta.kicad_mod✓ bc548cta.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 16h ago
viewers bc548cta: viewers · Ray 16h ago
bc548cta-etched.glb Publish 0.1.0 · Ray 16h ago
bc548cta-etched.step bc548cta: factory component page (tier=mfr) · Ray 16h ago
bc548cta-hero.glb bc548cta: hero GLB from the etched model (keeps the MPN mark) · Ray 16h ago
bc548cta-hero.overlay.json Publish 0.1.0 · Ray 16h ago
bc548cta.glb Publish 0.1.0 · Ray 16h ago
bc548cta.kicad_mod Publish 0.1.0 · Ray 16h ago
bc548cta.kicad_sym Publish 0.1.0 · Ray 16h ago
bc548cta.lbr Publish 0.1.0 · Ray 16h ago
bc548cta.step Publish 0.1.0 · Ray 16h ago
package.json Publish 0.1.0 · Ray 16h ago
page.json Set visibility: public · Ray 16h ago
README.md Publish 0.1.0 · Ray 16h ago
verification.json Verified: Published by the parts factory: tier mfr, 3 pins · Ray 16h ago

BC548CTA

onsemi · Bipolar Transistors - BJT · TO-92-3

BC548CTA from onsemi, in a TO-92-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 Collector passive Collector terminal of the NPN transistor; maximum DC collector current is 100 mA per the absolute maximum ratings.
2 Base passive Base terminal of the NPN transistor; maximum emitter-base voltage is 5 V for the BC548 per the absolute maximum ratings.
3 Emitter passive Emitter terminal of the NPN transistor; collector-emitter voltage is limited to 30 V for the BC548 per the absolute maximum ratings.

Key specifications

Parameter Value
Manufacturer onsemi
Package TO-92-3
Category Transistors
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Collector-Base Voltage VCBO 30 V 3
Collector-Emitter Voltage VCEO 30 V 3
Emitter-Base Voltage VEBO 5 V 3
Collector Current (DC) IC 100 mA 3
Collector Power Dissipation PC 500 mW 3
Junction Temperature TJ 150 °C 3
Storage Temperature Range TSTG -65 150 °C 3
Collector Cut-Off Current ICBO 15 nA VCB = 30 V, IE = 0 3
DC Current Gain hFE 110 800 VCE = 5 V, IC = 2 mA 3
DC Current Gain (classification C) hFE 420 800 3
Collector-Emitter Saturation Voltage VCE(sat) 90 250 mV IC = 10 mA, IB = 0.5 mA 3
Collector-Emitter Saturation Voltage VCE(sat) 250 600 mV IC = 100 mA, IB = 5 mA 3
Base-Emitter Saturation Voltage VBE(sat) 700 mV IC = 10 mA, IB = 0.5 mA 3
Base-Emitter Saturation Voltage VBE(sat) 900 mV IC = 100 mA, IB = 5 mA 3
Base-Emitter On Voltage VBE(on) 580 660 700 mV VCE = 5 V, IC = 2 mA 3
Base-Emitter On Voltage VBE(on) 720 mV VCE = 5 V, IC = 10 mA 3
Current Gain Bandwidth Product fT 300 MHz VCE = 5 V, IC = 10 mA, f = 100 MHz 3
Output Capacitance Cob 3.5 6 pF VCB = 10 V, IE = 0, f = 1 MHz 3
Input Capacitance Cib 9 pF VEB = 0.5 V, IC = 0, f = 1 MHz 3
Noise Figure NF 2 10 dB VCE = 5 V, IC = 200 μA, f = 1 kHz, RG = 2 kΩ 3

CAD (KiCad official)

  • Symbol: BC548CTA
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: bc548cta-etched.step / bc548cta-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc548cta.step / bc548cta.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (8 pp, sha256 205672af2f89857d, retrieved 2026-11-04, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF