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BC857BS-13-F

Public Made by Adom

by adom

Diodes Incorporated Bipolar (BJT), SOT-363. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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BC857BS-13-F

Diodes Incorporated · Bipolar (BJT) · SOT-363

BC857BS-13-F from Diodes Incorporated, in a SOT-363. 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 E1 passive Emitter of PNP transistor 1; Q1 is rated VCEO -45 V and IC -100 mA.
2 B1 passive Base of PNP transistor 1; peak base current IBM is -200 mA and VEBO is -5.0 V.
3 C2 passive Collector of PNP transistor 2; rated VCEO -45 V, IC -100 mA and peak ICM -200 mA.
4 E2 passive Emitter of PNP transistor 2; VEBO limit is -5.0 V.
5 B2 passive Base of PNP transistor 2; peak base current IBM is -200 mA.
6 C1 passive Collector of PNP transistor 1; rated VCEO -45 V, IC -100 mA and peak ICM -200 mA.

Key specifications

Parameter Value
Manufacturer Diodes Incorporated
Package SOT-363
Category Transistors/Thyristors
Pins 6

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 -50 V 2
Collector-Emitter Voltage VCEO -45 V 2
Emitter-Base Voltage VEBO -5 V 2
Collector Current IC -100 mA 2
Peak Collector Current ICM -200 mA 2
Peak Base Current IBM -200 mA 2
Power Dissipation PD 200 mW Note 6: minimum recommended pad layout FR4 PCB, still air 2
Thermal Resistance, Junction to Ambient Air RθJA 625 °C/W Note 6: minimum recommended pad layout FR4 PCB, still air 2
Operating and Storage Temperature Range TJ, TSTG -55 150 °C 2
Collector-Base Breakdown Voltage BVCBO -50 V IC = 100µA, IB = 0 2
Collector-Emitter Breakdown Voltage BVCEO -45 V IC = 10mA, IB = 0 2
Emitter-Base Breakdown Voltage BVEBO -5 V IE = 100µA, IC = 0 2
DC Current Gain hFE 220 475 VCE = -5.0V, IC = -2.0mA 2
Collector-Emitter Saturation Voltage VCE(sat) -100 mV IC = -10mA, IB = -0.5mA 2
Collector-Emitter Saturation Voltage VCE(sat) -400 mV IC = -100mA, IB = -5.0mA 2
Base-Emitter Voltage VBE(on) -580 -665 -750 mV VCE = -5.0V, IC = -2.0mA 2
Collector-Cutoff Current ICBO -15 nA VCB = -30V 2
Collector-Cutoff Current ICBO -4 µA VCB = -30V, TA = +150°C 2
Emitter Cutoff Current IEBO -100 nA VEB = -5.0V, IC = 0 2
Gain Bandwidth Product fT 100 MHz VCE = -5.0V, IC = -10mA, f = 100MHz 2
Collector-Base Capacitance CCBO 2 3 pF VCB = -10V, f = 1.0MHz 2

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts tin • Terminals: Finish ⎯ Matte Tin Finish. Solderable per MIL-STD￾202, Method 208 • Weight: 0.006 grams (approximate) 1

CAD (KiCad official)

  • Symbol: BC857BS-13-F
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SOT-363 (KiCad packages3D, STEP)
  • 3D model files: bc857bs-13-f-etched.step / bc857bs-13-f-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); bc857bs-13-f.step / bc857bs-13-f.glb are the bare package body.

Provenance

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

  • Datasheet: Diodes Incorporated datasheet (5 pp, sha256 ece4fa13bb2c7fef, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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