MJE340

onsemi

-65℃~+150℃ 1 NPN 100uA 20W 30 300V 3V 500mA NPN TO-225-3 Bipolar (BJT) ROHS

Extended

Category: Bipolar (BJT)
Package: TO-225-3
Pins: 3

Overview

The MJE340 is a bipolar made by onsemi in a TO-225-3 package with 3 pins. -65℃~+150℃ 1 NPN 100uA 20W 30 300V 3V 500mA NPN TO-225-3 Bipolar (BJT) ROHS.

PCBKit's library has its KiCad symbol (Transistors:NPN E1 C2 B3, from CERN's library) and its footprint (ICs And Semiconductors THD:SOT-32_H, from CERN's library), ready for a KiCad board. 2,879 are in stock at JLCPCB (part C898406). 9 open-source boards in 8 repositories on GitHub use it.

Symbol

Transistors:NPN E1 C2 B3From CERN's library

Footprint

ICs And Semiconductors THD:SOT-32_HFrom CERN's library

Parameters

Collector - Emitter Voltage VCEO: 300V
Configuration: Standalone
Current - Collector Cutoff: 100uA
Current - Collector(Ic): 500mA
DC Current Gain: 30
Emitter-Base Voltage(Vebo): 3V
Number: 1 NPN
Operating Temperature: -65℃~+150℃
Pd - Power Dissipation: 20W
type: NPN

Order codes

MJE340GLCSC C898406

Pinout

The pins of the MJE340
Pin	Name	Type
1	E	Passive
2	C	Passive
3	B	Passive

Open-source boards using it

All 9

2 layers
Amplificador
nachocarballeda/gclass_amplifier
Diseño de un amplificador clase G para la materia Circuitos Electronicos 2. FIUBA
92 parts3
2 layers112 × 92 mm
BatterySwitch Steuerplatine
bugtesterdani/BatterySwitch
Automatische Umschaltung zwischen zwei Akkus (Batterie 1: 50 Ah, Batterie 2: 30 Ah) in einem 72-V-System (ca. 71,x V Ladeschluss, ca. 58 V Entladeschluss — z. B.
56 parts
2 layers100.6 × 66.6 mm
KursaDarbs
kvilcans/PCB-GIT
Datorizētā projektēšana. Kristaps Vilcāns darbi
43 parts
4 layers198.9 × 130 mm
640A PowerAmp
SSSound13/Cambridge_640A_PowerAmp
Replacement 4-layer KiCad PCB for the Cambridge Audio Azur 640A (V1) power amp board AP12707/6
296 parts
2 layers150.4 × 100.3 mm
Amp mosfet-160w
schenkmi/electronic-projects
misc electronic projects
74 parts6CERN-OHL-W-2.0
2 layers150.4 × 100.3 mm
Amp mosfet-160w
schenkmi/electronic-projects
misc electronic projects
73 parts6CERN-OHL-W-2.0
2 layers245 × 60 mm
Black devil
Synthron/SymAsym
High Power Audio Amplifier based on the Red Devil SymAsym PCBs from audiopcb.de
124 parts2
2 layers
H using transistor
Ajay-Mallesh/PCB-Designs
Collection of PCB designs -> Basic circuits
70 parts

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A picture

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A picture that opens the part, for a README

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Questions

Is there a KiCad symbol and footprint for the MJE340?

Yes. The symbol is Transistors:NPN E1 C2 B3 and the footprint ICs And Semiconductors THD:SOT-32_H, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the MJE340?

TO-225-3, with 3 pins. Its footprint is drawn on this page.

Where is the MJE340 datasheet?

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

Where can I order the MJE340?

JLCPCB lists it as part C898406, with 2,879 in stock; the sellers' links on this page open their listings.

What can replace the MJE340?

Parts like it in the library: the MJE350 by onsemi, the MJE340 by STMicroelectronics, the MJE350 by STMicroelectronics and the MJE340 by ISC. Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the MJE340?

9 boards in 8 repositories on GitHub; the most starred are listed on this page, with their KiCad files.