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Littelfuse PSR031FS0350Z Power Semiconductor Fuse

Littelfuse PSR Series high-speed square body fuses provide fast, reliable protection for power semiconductor devices such as IGBTs, diodes, SCRs, and MOSFETs used in power conversion, drives, and industrial equipment. Designed with ceramic bodies and plated brass contacts, these fuses feature visual blown indicator, microswitch options, and are certified to UL, IEC, and CCC standards. Suitable for applications including UPS, inverters, motor drives, and energy storage systems, they ensure high current limiting and superior cycling performance. Available from 40A to 2000A, with voltage ratings up to 1300V, these fuses are essential components for safeguarding sensitive power electronics.

Authorized Distributors
Source:DigiKey
Part No:PSR031FS0350Z
Stock:0
Inv Date:05-28-2026
Price: Unit price: $275.28
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Part No:PSR031FS0350Z
Stock:0
Inv Date:05-29-2026
Price: Unit price: $254.8
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Part No:PSR031FS0350Z
Stock:0
Inv Date:05-28-2026
Price: Unit price: $619.16
Buy/RFQ:
Part No:PSR031FS0350Z
Stock:0
Inv Date:05-28-2026
Price: Unit price: $619.16
Buy/RFQ:
Part No:PSR031FS0350Z
Stock:0
Inv Date:05-28-2026
Price: Unit price: $210.06
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Littelfuse PSR031FS0350Z Power Semiconductor Fuse Specifications:

  • Voltage Range AC: 550 V - 1300 V
  • DC: 500 V - 1000 V
  • Amperage Range: 40A - 2000A
  • Interrupting Range AC: 100 kA - 200 kA
  • DC: 150 kA
  • Time Constant: 10 ms
  • Material Body: Ceramic
  • Contacts: Plated Brass
  • Mounting: Flush-End Style
  • Approvals: UL Recognized, cURus, IEC 60269-4, CCC
  • Operating Temperature: -55°C to +125°C
  • Environmental: Storage Temperature Up to +35°C, Relative Humidity <65%

Buy the Buy Littelfuse Power Semiconductor Fuse Part Number PSR031FS0350Z Online

Order Littelfuse PSR Series high-speed power semiconductor fuses online and ensure rapid, reliable protection for your diode, IGBT, SCR, and MOSFET applications. These ceramic-bodied fuses feature visual blown indicators and optional microswitches, ideal for UPS, inverters, motor drives, and energy storage. Rated up to 1300V and 2000A, they provide fast response times with high current limiting and superior cycling performance. Purchase today to safeguard your advanced power electronics with top-tier, certified circuit protection solutions.

Buy Littelfuse PSR031FS0350Z now and experience unmatched reliability and high-speed protection for sensitive power systems.

Frequently Asked Questions

Where can I buy Littelfuse PSR031FS0350Z?

You can click on the BUY or RFQ button to purchase PSR031FS0350Z from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part PSR031FS0350Z?

You can download the PSR031FS0350Z datasheet or visit the Littelfuse website for support.

Who is the manufacturer of PSR031FS0350Z?

Littelfuse

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