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ONSEMI MJD340G Power Transistor

High voltage power transistor designed for surface mount applications, suitable for line-operated audio amplifiers, switch-mode power supplies, and switching circuits. Featuring a DPAK package, these transistors have collector-emitter voltage ratings of 300 V, collector current up to 0.5 A, and power dissipation of 15 W. They are RoHS, halogen-free, and Pb-Free, with UL 94 V-0 compliance. The devices are thermally characterized with junction-to-case resistance of 8.33°C/W, optimized for high-reliability industrial operations, compatible with automotive standards, and include enhanced ESD protection.

Authorized Distributors
Source:Newark
Part No:MJD340G
Stock:4300
Inv Date:06-10-2026
Price: Unit price: $0.864
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Source:DigiKey
Part No:MJD340G
Stock:3898
Inv Date:06-10-2026
Price: Unit price: $0.47893
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Part No:MJD340G
Stock:8684
Inv Date:06-11-2026
Price: Unit price: $1.14
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Part No:MJD340G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.71
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Part No:MJD340G
Stock:3375
Inv Date:06-10-2026
Price: Unit price: $0.5557
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Part No:MJD340G
Stock:3375
Inv Date:06-10-2026
Price: Unit price: $0.5557
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Part No:MJD340G
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.275
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Source:Arrow EU
Part No:MJD340G
Stock:2357
Inv Date:06-11-2026
Price: N/A
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Part No:MJD340G
Stock:86
Inv Date:06-11-2026
Price: N/A
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ONSEMI MJD340G Power Transistor Specifications:

  • Collector-Emitter Voltage: 300 V
  • Collector-Base Voltage: 300 V
  • Emitter-Base Voltage: 3 V
  • Collector Current - Continuous: 0.5 A
  • Collector Current - Peak: 0.75 A
  • Total Power Dissipation @ Tc=25°C: 15 W
  • Power Derating above 25°C: 0.12 W/°C
  • Junction-to-Case Thermal Resistance: 8.33°C/W
  • Junction-to-Ambient Thermal Resistance: 80°C/W
  • Operating Temperature Range: -65°C to +150°C
  • Storage Temperature Range: -65°C to +150°C
  • Lead Soldering Temperature: 260°C for 10s
  • Package: DPAK (CASE 369C)
  • UL 94V-0 Fire Resistance
  • Pb-Free, Halogen-Free, BFR-Free
  • Electrically Similar to MJE340 and MJE350
  • Electrically Qualified and PPAP Capable

Buy the ON Semiconductor MJD340 U–2013 Reliable Power Transistor for Industrial Applications

Order the high-quality power transistor online today for your switching and amplification needs. Designed with a DPAK package, it offers a maximum collector-emitter voltage of 300V and a continuous collector current of 0.5A, suitable for industrial power supplies and automotive applications. Ensure reliable performance with UL 94 V-0 compliance, RoHS, halogen-free, and Pb-Free features. Easy to integrate into surface-mount designs, this transistor provides excellent thermal management with low junction-to-case resistance, making it ideal for high-reliability electronics requiring robust power handling and durability.

Get ON Semiconductor MJD340 today—built for precision and long-lasting durability in power switching applications.

Frequently Asked Questions

Where can I buy ONSEMI MJD340G?

You can click on the BUY or RFQ button to purchase MJD340G from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part MJD340G?

You can download the MJD340G datasheet or visit the ONSEMI website for support.

Who is the manufacturer of MJD340G?

ONSEMI

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