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MMSTA42 on a board, in 3D

MMSTA42

Jiangsu Changjing Electronics Technology (CJ)

-55℃~+150℃ 1 NPN 200mA 200mV 250nA 300V 300mW 50MHz 5V 60 NPN SOT-323 Bipolar (BJT) ROHS

Extended
DatasheetJLCPCBLCSCcj/MMSTA42
Category
Transistors (NPN, PNP)
Package
SOT-323-3
Pins
3

Overview

The MMSTA42 is a transistor made by Jiangsu Changjing Electronics Technology (CJ) in a SOT-323-3 package with 3 pins. -55℃~+150℃ 1 NPN 200mA 200mV 250nA 300V 300mW 50MHz 5V 60 NPN SOT-323 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Pinmap_Generic:Q_NPN_1B_2E_3C, from PCBKit's generic symbols) and its footprint (Package_TO_SOT_SMD:SOT-323_SC-70, from KiCad's library), ready for a KiCad board. 576 are in stock at JLCPCB (part C2910229). 1 open-source board in 1 repository on GitHub use it.

Symbol

Pinmap_Generic:Q_NPN_1B_2E_3CFrom PCBKit's generic symbols

Footprint

123
Package_TO_SOT_SMD:SOT-323_SC-70From KiCad's library

Parameters

12
Collector - Emitter Voltage VCEO
300V
Configuration
Standalone
Current - Collector Cutoff
250nA
Current - Collector(Ic)
200mA
DC Current Gain
60
Emitter-Base Voltage(Vebo)
5V
Number
1 NPN
Operating Temperature
-55℃~+150℃
Pd - Power Dissipation
300mW
Transition frequency(fT)
50MHz
Vce Saturation(VCE(sat))
200mV
type
NPN

Order codes

2

Pinout

3
The pins of the MMSTA42
PinNameType
1BInput
2EPassive
3CPassive

Open-source boards using it

All 1
  • 2 layersSmall-7, the printed circuit board in 3D

    Small-7

    NVlabs/Cypress

    Cypress is a scalable, GPU-accelerated PCB placement method inspired by VLSI. It incorporates tailored cost functions, constraint handling, and optimized techniques adapted for PCB layouts.

    52 parts56Apache-2.0

Show this part on your page

A live frame, for any web page
<iframe src="https://pcbkit.io/embed/parts/cj/MMSTA42" title="MMSTA42 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/cj/MMSTA42.jpg" alt="MMSTA42" width="1200" height="900">
A picture that opens the part, for a README
[![MMSTA42](https://pcbkit.io/embed/parts/cj/MMSTA42.jpg?size=s)](https://pcbkit.io/parts/cj/MMSTA42)

Questions

Is there a KiCad symbol and footprint for the MMSTA42?

Yes. The symbol is Pinmap_Generic:Q_NPN_1B_2E_3C and the footprint Package_TO_SOT_SMD:SOT-323_SC-70, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MMSTA42?

SOT-323-3, with 3 pins. Its footprint is drawn on this page.

Where is the MMSTA42 datasheet?

Jiangsu Changjing Electronics Technology (CJ) publishes it: the Datasheet link on this page opens it.

Where can I order the MMSTA42?

JLCPCB lists it as part C2910229, with 576 in stock; the sellers' links on this page open their listings.

Which open-source boards use the MMSTA42?

1 board in 1 repository on GitHub; the most starred are listed on this page, with their KiCad files.