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Littelfuse RGEF400 Resettable Circuit Protector

Littelfuse's PolySwitch RGEF400 radial-leaded resettable device offers reliable overcurrent protection for industrial, consumer, and electronic applications. With a voltage rating of 16V and hold current of 4.00A, it features fast trip time, low resistance, and broad environmental resilience, including RoHS and halogen-free compliance. Its compact size and high voltage ratings make it suitable for transformers, power supplies, and sensitive electronic equipment, ensuring safety and regulatory compliance in high-volume manufacturing environments.

Authorized Distributors
Source:Newark
Part No:RGEF400
Stock:4
Inv Date:05-28-2026
Price: Unit price: $0.094
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Source:DigiKey
Part No:RGEF400
Stock:22332
Inv Date:05-28-2026
Price: Unit price: $0.7
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Part No:RGEF400
Stock:2940
Inv Date:05-29-2026
Price: Unit price: $0.58
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Part No:RGEF400
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.34
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Part No:RGEF400
Stock:2400
Inv Date:05-28-2026
Price: Unit price: $0.345
Buy/RFQ:
Part No:RGEF400
Stock:35
Inv Date:05-29-2026
Price: N/A
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Littelfuse RGEF400 Resettable Circuit Protector Specifications:

  • Voltage Rating: 16V
  • Hold Current: 4.00A
  • Maximum Trip Power: 0.030W
  • Resistance Range: Min 0.013Ω, Max 0.030Ω
  • Operating Temperature: -40°C to +85°C
  • Solderability: Meets ANSI/J-STD-002 Category 3
  • Solder Heat Withstand: 10s at 260°C ±5°C
  • Lead Material: Tin-plated Copper, 0.205mm² (24AWG)
  • Soldering: Not suitable for reflow processes
  • Environmental: RoHS and halogen-free, UL, CSA, TUV recognized

Buy the Littelfuse RGEF400 – Reliable Circuit Protection for Industrial Applications

Secure your electronic devices and industrial equipment with the Littelfuse RGEF400 resettable device. Featuring a 16V voltage rating and 4.00A hold current, it provides fast overcurrent trip response, low resistance, and broad environmental resistance. Its compact radial lead form fits easily into power supplies, transformers, and control panels. Compliance with RoHS, halogen-free standards, and recognized safety certifications make it an ideal choice for high-volume manufacturing and safety-critical applications. Purchase online for quick delivery and reliable circuit protection.

Order your Littelfuse Series RGEF400 today and ensure your electronic systems are protected with dependable overcurrent devices.

Frequently Asked Questions

Where can I buy Littelfuse RGEF400?

You can click on the BUY or RFQ button to purchase RGEF400 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part RGEF400?

You can download the RGEF400 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of RGEF400?

Littelfuse

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