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ONSEMI KSP42BU High-Voltage Transistor

This high-demand NPN epitaxial silicon transistor features a collector-emitter voltage of 300 V for KSP42 and 200 V for KSP43, with a maximum collector dissipation of 625 mW. Designed for reliable switching and amplification, it offers a collector current of 500 mA, junction temperature of 150°C, and a collector power dissipation suitable for various electronic applications. The device is available in TO-92 packages, with options for bulk or tape & reel packaging, making it ideal for industrial, consumer electronics, and automation systems requiring high voltage and robust performance.

Authorized Distributors
Source:Newark
Part No:KSP42BU
Stock:4176
Inv Date:06-10-2026
Price: Unit price: $0.357
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Part No:KSP42BU
Stock:9583
Inv Date:06-11-2026
Price: Unit price: $0.34
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Part No:KSP42BU
Stock:15500
Inv Date:06-11-2026
Price: Unit price: $0.0431
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Part No:KSP42BU
Stock:15500
Inv Date:06-11-2026
Price: Unit price: $0.0431
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Part No:KSP42BU
Stock:0
Inv Date:06-10-2026
Price: Unit price: $0.0653
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Part No:KSP42BU
Stock:8348
Inv Date:06-11-2026
Price: N/A
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ONSEMI KSP42BU High-Voltage Transistor Specifications:

  • Collector-Base Voltage: 300 V (KSP42), 200 V (KSP43)
  • Collector-Emitter Voltage: 200 V (KSP43), 300 V (KSP42)
  • Emitter-Base Voltage: 6 V
  • Collector Current: 500 mA
  • Collector Power Dissipation: 625 mW
  • Junction Temperature: 150°C
  • Storage Temperature: -55°C to 150°C
  • Package: TO-92, Straight Lead, Bent Lead
  • Physical Dimensions: Length approximately 15.62 mm, Width approximately 5.33 mm, Height approximately 4.32 mm
  • Maximum voltage ratings and thermal characteristics ensure suitability for high-voltage switching applications

Buy the ON Semiconductor Series KSP Series Transistor: KSP42BU

Purchase the ON Semiconductor KSP42BU high-voltage NPN transistor online today. Designed for robust switching and amplification, it features a collector-emitter voltage of 300 V and a maximum collector current of 500 mA. This reliable device is available in TO-92 packages with options for bulk and tape & reel packaging, ensuring ease of assembly for industrial, automation, and consumer electronic applications. Order now to enjoy fast shipping, authentic quality, and technical support for your high-voltage switching needs.

Get ON Semiconductor KSP42BU today—built for high voltage switching and reliable amplification in industrial and consumer electronics.

Frequently Asked Questions

Where can I buy ONSEMI KSP42BU?

You can click on the BUY or RFQ button to purchase KSP42BU from an authorized ONSEMI distributor.

How do I troubleshoot issues or seek technical support for part KSP42BU?

You can download the KSP42BU datasheet or visit the ONSEMI website for support.

Who is the manufacturer of KSP42BU?

ONSEMI

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