component

BC547CTFR

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.

componenttransistorsbc547ctfrfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
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 13d ago
viewers bc547ctfr: viewers · Ray 13d ago
bc547ctfr-etched.glb Publish 0.1.0 · Ray 13d ago
bc547ctfr-etched.step bc547ctfr: factory component page (tier=mfr) · Ray 13d ago
bc547ctfr-hero.glb bc547ctfr: hero GLB from the etched model (keeps the MPN mark) · Ray 13d ago
bc547ctfr-hero.overlay.json Publish 0.1.0 · Ray 13d ago
bc547ctfr.glb Publish 0.1.0 · Ray 13d ago
bc547ctfr.kicad_mod Publish 0.1.0 · Ray 13d ago
bc547ctfr.kicad_sym Publish 0.1.0 · Ray 13d ago
bc547ctfr.lbr Publish 0.1.0 · Ray 13d ago
bc547ctfr.step Publish 0.1.0 · Ray 13d ago
package.json Publish 0.1.0 · Ray 13d ago
page.json Set visibility: public · Ray 13d ago
README.md Publish 0.1.0 · Ray 13d ago

BC547CTFR

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

BC547CTFR 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 of the NPN transistor; VCEO 45 V and IC up to 100 mA DC for BC547 (VCBO 50 V).
2 Base passive Base of the NPN transistor; VEBO maximum 6 V for BC547, with hFE 420 to 800 for the C grade at VCE = 5 V, IC = 2 mA.
3 Emitter passive Emitter of the NPN transistor; total collector power dissipation is 500 mW at TA = 25°C.

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 (BC547) VCBO 50 V TA = 25°C 3
Collector-Emitter Voltage (BC547) VCEO 45 V TA = 25°C 3
Emitter-Base Voltage (BC547) VEBO 6 V TA = 25°C 3
Collector Current (DC) IC 100 mA TA = 25°C 3
Collector Power Dissipation PC 500 mW TA = 25°C 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 hFE classification C 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 On Voltage VBE(on) 580 660 700 mV VCE = 5 V, IC = 2 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) 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 (BC546/BC547/BC548) NF 2 10 dB VCE = 5 V, IC = 200 μA, f = 1 kHz, RG = 2 kΩ 3

CAD (KiCad official)

  • Symbol: BC547CTFR
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: bc547ctfr-etched.step / bc547ctfr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc547ctfr.step / bc547ctfr.glb are the bare package body.

Provenance

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

  • Datasheet: onsemi datasheet (8 pp, sha256 2ae8237cc78de283, retrieved 2026-10-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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