IC Phoenix logo

Home ›  M  › M140 > MJE344

MJE344 from ST,ST Microelectronics

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MJE344

Manufacturer: ST, MOT

Leaded Power Transistor General Purpose

Partnumber Manufacturer Quantity Availability
MJE344 ST, MOT 524 In Stock

Description and Introduction

Leaded Power Transistor General Purpose **Enhance Your Designs with the MJE344 Transistor**  

When it comes to reliable power amplification and switching applications, the MJE344 PNP bipolar junction transistor (BJT) stands out as a robust and efficient choice. Designed for high-voltage and medium-power applications, this component is widely used in audio amplifiers, power supplies, and motor control circuits, offering engineers a dependable solution for demanding electronic designs.  

The MJE344 features a collector-emitter voltage (VCE) rating of up to 400V, making it suitable for high-voltage environments. With a continuous collector current (IC) of 1.5A, it efficiently handles medium-power loads while maintaining stable performance. Its high current gain (hFE) ensures effective signal amplification, reducing the need for additional driver stages in many circuits.  

Thermal stability is a critical factor in power electronics, and the MJE344 excels in this regard. Its TO-220 package provides excellent heat dissipation, allowing it to operate reliably under prolonged high-power conditions. Additionally, the transistor’s rugged construction ensures durability in industrial and automotive applications where temperature fluctuations and mechanical stress are common.  

For designers seeking a cost-effective yet high-performance PNP transistor, the MJE344 offers an optimal balance of voltage tolerance, current handling, and thermal efficiency. Whether used in linear amplification or switching circuits, its consistent performance and robust specifications make it a preferred choice for engineers across various industries.  

By integrating the MJE344 into your designs, you can achieve enhanced efficiency, reliability, and longevity in power management applications. Its proven track record in demanding environments makes it a trusted component for professionals looking to optimize their electronic systems.

Application Scenarios & Design Considerations

Leaded Power Transistor General Purpose

Alternative Part Number

  • BD137 --: NPN power transistor in TO-126 with similar 60V/1.5A ratings, widely available and a common substitute for MJE344.
  • 2N4922 --: NPN medium-power transistor with comparable voltage and current ratings, suitable for general switching and amplifier applications.
  • TIP29C --: NPN power transistor in TO-220 with higher current capability and similar voltage rating, usable where slightly larger package is acceptable.
  • 2N5192 --: NPN power transistor with similar voltage and current ratings, widely available and commonly used as a substitute in switching and amplifier circuits.
  • BD241C --: NPN power transistor in TO-220 package with comparable collector current and voltage, suitable for general-purpose switching and linear applications.
  • TIP31C --: Popular NPN power transistor with similar power handling and current gain, easy to source and often used as a drop-in replacement for medium-power NPN devices.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips