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BC857B AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

BC857B product

BC857B

Transistors - Bipolar (BJT) - Single

PNPBJTSOT-23Small Signal

The BC857B is a standard PNP BJT transistor in an SOT-23 package, suitable for general-purpose switching and audio amplification.

Best for

  • Small-signal switching
  • Audio frequency amplification

Avoid if

  • High-power applications exceeding 200mW
  • High-voltage circuits exceeding -45V

Check before use

  • Gain requirements
  • Thermal dissipation

Key specifications

Polarity
PNP
VCEO
-45 V
IC
-0.1 A
hFE
220-475

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

General PurposeAudio

Datasheet

41dcceb6f7b37c9f071ca8dd48f19662.pdf

800 KB

Datasheet AI

CAD Models

Download ECAD models for BC857B: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Where to Buy

Real-time and catalog pricing from verified distributors

Live prices updated on demand · Catalog (~) prices may differ

Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

The BC857B is a PNP bipolar junction transistor (BJT) manufactured by UMW, commonly used in small-signal switching and audio frequency amplification circuits.