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BC557B on a board, in 3D

BC557B

LGE

1 PNP 100mA 100nA 150MHz 180 45V 5V 625mW 650mV PNP TO-92 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSClge/BC557B
Category
Bipolar (BJT)
Package
TO-92
Pins
3

Overview

The BC557B is a bipolar made by LGE in a TO-92 package with 3 pins. 1 PNP 100mA 100nA 150MHz 180 45V 5V 625mW 650mV PNP TO-92 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BC557, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-92_Inline, from KiCad's library), ready for a KiCad board. 3,500 are in stock at JLCPCB (part C713617). 14 open-source boards in 12 repositories on GitHub use it.

Symbol

123
Transistor_BJT:BC557From KiCad's library

Footprint

123
Package_TO_SOT_THT:TO-92_InlineFrom KiCad's library

Parameters

11
Collector - Emitter Voltage VCEO
45V
Configuration
Standalone
Current - Collector Cutoff
100nA
Current - Collector(Ic)
100mA
DC Current Gain
180
Emitter-Base Voltage(Vebo)
5V
Number
1 PNP
Pd - Power Dissipation
625mW
Transition frequency(fT)
150MHz
Vce Saturation(VCE(sat))
650mV
type
PNP

Order codes

1

Pinout

3
The pins of the BC557B
PinNameType
1CPassive
2BInput
3EPassive

Open-source boards using it

All 14
  • 2 layers300 × 53 mmBMW E30 VFL SI Board, the printed circuit board in 3D

    BMW E30 VFL SI Board

    FabianGmeiner/BMW_E30_SI_Board

    Reverse engineering and improving the BMW E30 service indicator board

    112 parts20GPL-3.0
  • 2 layers283 × 177.5 mmUC-50-001, the printed circuit board in 3D

    UC-50-001

    sporniket/kicad-conversions--thomson-mo5--v1

    A conversion to Kicad EDA of the schematics of a computer released around 1984 known as the "Thomson MO5".

    225 parts7CC0-1.0
  • 2 layers101.5 × 63 mmN24 ACAmplifier, the printed circuit board in 3D

    N24 ACAmplifier

    deqit/PhilipsPM2528

    Hardware and software for the Philips PM2528

    114 parts3
  • 2 layers300 × 53 mmBMW E30 Late Cluster SI, the printed circuit board in 3D

    BMW E30 Late Cluster SI

    Ansel84/BMW-E30-Gauge-Cluster-Late-Model

    This project is the documentation of reverse engineering the BMW E30 gauge cluster for post 1988 model years.

    118 parts2MIT
  • 2 layers108 × 48.3 mmSRC-140-ADSR, the printed circuit board in 3D

    SRC-140-ADSR

    B0rgar/SRC-140-ADSR

    Dual ADSR from gerbster.nl and panel.

    108 parts2
  • 2 layers89.2 × 62.1 mmDce pcb v1, the printed circuit board in 3D

    Dce pcb v1

    DeniseViltes/dce-g5-proyecto_integrador

    FIUBA - Electrónica - Taller de Diseño de Circuitos Electrónicos -Proyecto de diseño: Sistema de alimentación para aplicaciones industriales y automotrices

    59 parts1
  • 2 layers73 × 78.1 mmPan Mix A, the printed circuit board in 3D

    Pan Mix A

    clarionut/YuSynth-Panning-Mixer-Output

    An extensible version of the YuSynth Output mixer & VC-panner, minus the tone control circuitry

    98 parts
  • 2 layers71.9 × 100 mmVco, the printed circuit board in 3D

    Vco

    cookiemonsternz/Eurorack-VCO

    Also, a lot of eurorack modules are quite bland in terms of design, often lacking any personality and focusing purely on cramming as many knobs in as possible.

    115 parts

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Questions

Is there a KiCad symbol and footprint for the BC557B?

Yes. The symbol is Transistor_BJT:BC557 and the footprint Package_TO_SOT_THT:TO-92_Inline, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BC557B?

TO-92, with 3 pins. Its footprint is drawn on this page.

Where is the BC557B datasheet?

LGE publishes it: the Datasheet link on this page opens it.

Where can I order the BC557B?

JLCPCB lists it as part C713617, with 3,500 in stock; the sellers' links on this page open their listings.

What can replace the BC557B?

Parts like it in the library: the 2N3904 by JSMSEMI, the 2N3904BU by onsemi, the PN2222ABU by onsemi and the BC547B by LGE. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BC557B?

14 boards in 12 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8