BD138

DDF

TO-126 Bipolar (BJT) ROHS

Extended

Category: Bipolar (BJT)
Package: TO-126
Pins: 5

Overview

The BD138 is a bipolar made by DDF in a TO-126 package with 3 pins. TO-126 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistor_BJT:BD138, from KiCad's library) and its footprint (Package_TO_SOT_THT:TO-126-3_Vertical, from KiCad's library), ready for a KiCad board. JLCPCB lists it (part C50229571).

Symbol

Transistor_BJT:BD138From KiCad's library

Footprint

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

Parameters

Collector - Emitter Voltage VCEO: 60V
Current - Collector Cutoff: 100nA
Current - Collector(Ic): 1.5A
DC Current Gain: 250
Emitter-Base Voltage(Vebo): 5V
Number: 1 PNP
Pd - Power Dissipation: 1.25W
Vce Saturation(VCE(sat)): 500mV
type: PNP

Order codes

BD138LCSC C50229571

Pinout

The pins of the BD138
Pin	Name	Type
1	E	Passive
2	C	Passive
3	B	Input

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A live frame, for any web page

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A picture

<img src="https://pcbkit.io/embed/parts/ddf/BD138.jpg" alt="BD138" width="1200" height="900">

A picture that opens the part, for a README

[![BD138](https://pcbkit.io/embed/parts/ddf/BD138.jpg?size=s)](https://pcbkit.io/parts/ddf/BD138)

Questions

Is there a KiCad symbol and footprint for the BD138?

Yes. The symbol is Transistor_BJT:BD138 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 BD138?

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

Where is the BD138 datasheet?

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

Where can I order the BD138?

JLCPCB lists it as part C50229571, with 0 in stock; the sellers' links on this page open their listings.

What can replace the BD138?

Parts like it in the library: the BD139 by STMicroelectronics, the BD140 by STMicroelectronics, the BD139-16 by STMicroelectronics and the BD139(RANGE:100-250) by Jiangsu Changjing Electronics Technology (CJ). Check their datasheets: a part that fits the footprint may still differ in its ratings.