Skip to the content
PCBKitNew board
BD140 on a board, in 3D

BD140

STMicroelectronics

-65℃~+150℃ 1 PNP 1.25W 1.5A 100nA 500mV 5V 63 80V PNP TO-126 Bipolar (BJT) ROHS

Extended
Category
Bipolar (BJT)
Package
TO-126
Pins
3

Overview

The BD140 is a bipolar made by STMicroelectronics in a TO-126 package with 3 pins. -65℃~+150℃ 1 PNP 1.25W 1.5A 100nA 500mV 5V 63 80V PNP TO-126 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BD140, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-126-3_Vertical, from KiCad's library), ready for a KiCad board. 7,367 are in stock at JLCPCB (part C38652). 73 open-source boards in 54 repositories on GitHub use it.

Symbol

123
Transistor_BJT:BD140From KiCad's library

Footprint

123
Package_TO_SOT_THT:TO-126-3_VerticalFrom KiCad's library

Parameters

12
Collector - Emitter Voltage VCEO
80V
Configuration
Standalone
Current - Collector Cutoff
100nA
Current - Collector(Ic)
1.5A
DC Current Gain
63
DC Current Gain (hFE@Ic,Vce)
40@150mA,2V
Emitter-Base Voltage(Vebo)
5V
Number
1 PNP
Operating Temperature
-65℃~+150℃
Pd - Power Dissipation
1.25W
Vce Saturation(VCE(sat))
500mV
type
PNP

Order codes

1

Pinout

3
The pins of the BD140
PinNameType
1EPassive
2CPassive
3BInput

Open-source boards using it

All 73
  • 4 layers150 × 100 mmUltimate LPS, the printed circuit board in 3D

    Ultimate LPS

    BTTLab/simple_and_affordable_lps

    Simple and affordable power supply

    97 parts27MIT
  • 2 layers236.8 × 169.8 mmTK2000, the printed circuit board in 3D

    TK2000

    clemarfolly/Microdigital-TK2000

    Reprodução da PCB do TK-2000 da Microdigital, clone do Micro-Professor MPF-II

    212 parts17
  • 2 layers100 × 80 mmRti, the printed circuit board in 3D

    Rti

    cceh/rti

    Reflectance Transformation Imaging

    58 parts15
  • 2 layers100 × 100 mmAmply, the printed circuit board in 3D

    Amply

    T76-org/amply

    A $10 desktop Bluetooth amplifier you'll love

    67 parts14GPL-3.0
  • 2 layers84.5 × 82.6 mmClassab amp, the printed circuit board in 3D

    Classab amp

    prydin/classab-amp-mosfet

    MOSFET-based 50W Class AB amplifier

    67 parts9
  • 2 layers40 × 99 mmOutput mixer, the printed circuit board in 3D

    Output mixer

    mohoyt/output_mixer

    Simple 4 channel Eurorack output mixer

    114 parts7CERN-OHL-S-2.0
  • 2 layers135.8 × 56.1 mmPower board, the printed circuit board in 3D

    Power board

    xtarke/automated_buggy

    This shield connects microcontroller (MSP-EXP430FR2355) pins to the car's power board. Go to Power Board for more hardware information.

    87 parts5GPL-3.0
  • 2 layers101.3 × 102.4 mmOpamp front, the printed circuit board in 3D

    Opamp front

    prydin/opamp-frontend-class-ab

    The result is a fast amplifier (>80V/us slew rate) with low distortion (0.00045% meadured @ 1kHz/1W/8ohm resistive load). It's undergone some preliminary measurements and looks quite promising.

    93 parts4

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/st/BD140" title="BD140 in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>
A picture
<img src="https://pcbkit.io/embed/parts/st/BD140.jpg" alt="BD140" width="1200" height="900">
A picture that opens the part, for a README
[![BD140](https://pcbkit.io/embed/parts/st/BD140.jpg?size=s)](https://pcbkit.io/parts/st/BD140)

Questions

Is there a KiCad symbol and footprint for the BD140?

Yes. The symbol is Transistor_BJT:BD140 and the footprint Package_TO_SOT_THT:TO-126-3_Vertical, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the BD140?

TO-126, with 3 pins. Its footprint is drawn on this page.

Where is the BD140 datasheet?

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

Where can I order the BD140?

JLCPCB lists it as part C38652, with 7,367 in stock; the sellers' links on this page open their listings.

What can replace the BD140?

Parts like it in the library: the BD139 by STMicroelectronics, the BD139-16 by STMicroelectronics, the BD139(RANGE:100-250) by Jiangsu Changjing Electronics Technology (CJ) and the BD237 by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the BD140?

73 boards in 54 repositories on GitHub; the most starred are listed on this page, with their KiCad files.

Parts like it

8