component

BC846B-QR

Public Made by Adom

by adom

Nexperia Bipolar (BJT), SOT-23. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BC846B-QR

Nexperia · Bipolar (BJT) · SOT-23

BC846B-QR from Nexperia, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 B input Base terminal for transistor control; 200 mA maximum peak base current (single pulse, tp ≤ 1 ms)
2 E passive Emitter terminal; 6 V maximum reverse bias voltage (VEBO, open collector)
3 C output Collector terminal; 65 V maximum voltage (VCEO, open base) and 100 mA maximum continuous collector current

Key specifications

Parameter Value
Manufacturer Nexperia
Package SOT-23
Category Transistors/Thyristors
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 80 V open emitter 3
collector-emitter voltage VCEO 65 V open base 3
emitter-base voltage VEBO 6 V open collector 3
collector current IC 100 mA 3
peak collector current ICM 200 mA single pulse; tp ≤ 1 ms 3
peak base current IBM 200 mA single pulse; tp ≤ 1 ms 3
total power dissipation Ptot 250 mW Tamb ≤ 25 °C; device mounted on FR4 PCB, single-sided copper, tin-plated and standard footprint 3
junction temperature Tj 150 °C 3
ambient temperature Tamb -65 150 °C 3
storage temperature Tstg -65 150 °C 3
thermal resistance from junction to ambient Rth(j-a) 500 K/W in free air 3
collector-base breakdown voltage V(BR)CBO 80 V IC = 100 µA; IE = 0 A; Tamb = 25 °C 4
collector-emitter breakdown voltage V(BR)CEO 65 V IC = 10 mA; IE = 0 A; Tamb = 25 °C 4
emitter-base breakdown voltage V(BR)EBO 6 V IE = 100 µA; IC = 0 A; Tamb = 25 °C 4
collector-base cut-off current ICBO 15 nA VCB = 30 V; IE = 0 A; Tamb = 25 °C 4
collector-base cut-off current ICBO 5 µA VCB = 30 V; IE = 0 A; Tj = 150 °C 4
emitter-base cut-off current IEBO 100 nA VEB = 5 V; IC = 0 A; Tamb = 25 °C 4
DC current gain (BC846B-Q) hFE 200 290 450 VCE = 5 V; IC = 2 mA; Tamb = 25 °C 4
collector-emitter saturation voltage VCEsat 90 200 mV IC =10 mA; IB = 0.5 mA; Tamb = 25 °C 4
collector-emitter saturation voltage VCEsat 200 400 mV IC =100 mA; IB = 5 mA; Tamb = 25 °C; pulsed; tp ≤ 300 μs; δ ≤ 0.02 4
base-emitter voltage VBE 580 660 700 mV IC = 2 mA; VCE = 5 V; Tamb = 25 °C 4
base-emitter voltage VBE 770 mV IC = 10 mA; VCE = 5 V; Tamb = 25 °C 4
transition frequency fT 100 MHz VCE = 5 V; IC = 10 mA; f = 100 MHz; Tamb = 25 °C 4
collector capacitance Cc 2 3 pF VCB = 10 V; IE = ie = 0 A; f = 1 MHz; Tamb = 25 °C 4
noise figure NF 2 10 dB IC = 200 A; VCE = 5 V; RS = 2 kΩ; f = 1 kHz; B = 200 Hz; Tamb = 25 °C 4

CAD (KiCad official)

  • Symbol: BC846B-QR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: bc846b-qr-etched.step / bc846b-qr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc846b-qr.step / bc846b-qr.glb are the bare package body.

Provenance

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

  • Datasheet: Nexperia datasheet (11 pp, sha256 030c93e37aa1c568, retrieved 2026-09-23, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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