myMectronic
myMectronic

A Premier B2B Part Search

Littelfuse RHEF050 Radial Circuit Protector

The PolySwitch RHEF series is a radial-leaded resettable circuit protection device designed for high-volume electronics assembly. It features flatter thermal derating and can operate at temperatures up to 125°C. The series offers a broad range of product choices, providing engineers with greater design flexibility and helping meet regulatory requirements. With higher voltage ratings up to 99V and current ratings from 50mA to 15A, these devices are suitable for various applications including communications and networking, industrial equipment, power management, computers and peripherals, portable devices, and automation and process control. Certified by UL, CSA, and TőV, they exhibit fast trip times and low resistance, making them reliable for protecting electronic components in diverse environments.

Authorized Distributors
Source:Newark
Part No:RHEF050
Stock:339
Inv Date:05-28-2026
Price: Unit price: $0.698
Buy/RFQ:
Source:DigiKey
Part No:RHEF050
Stock:1753
Inv Date:05-28-2026
Price: Unit price: $0.68
Buy/RFQ:
Part No:RHEF050
Stock:3789
Inv Date:05-29-2026
Price: Unit price: $0.55
Buy/RFQ:
Part No:RHEF050
Stock:6
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Littelfuse RHEF050 Radial Circuit Protector Specifications:

  • Voltage Rating: up to 99V
  • Current Ratings: 50mA to 15A
  • Operation Temperature: -40°C to 125°C
  • Flatter thermal derating
  • Fast trip time
  • Low resistance
  • RoHS compliant
  • UL, CSA, TUV certified
  • Material: Flame-retardant epoxy polymer, meets UL 94V-0
  • Lead Material: Tin-plated copper or nickel-copper alloy
  • Solderability: ANSI/J-STD-002 Category 3
  • Solder Heat Withstand: 10s at 260°C ±5°C
  • Environmental Resistance: Humidity, thermal shock, and passive aging tested
  • Physical Dimensions: Vary by model, detailed in datasheet

Buy the Littelfuse RHEF050 – Reliable Circuit Protection for Industrial Applications

Secure your electronic devices with the Littelfuse Radial Circuit Protector series. Designed for high-volume production, these devices operate reliably up to 125°C, offering fast trip times and low resistance to safeguard your sensitive components. With a wide range of current and voltage ratings, they are suitable for industrial controls, power supplies, communications, and consumer electronics. Certified by UL, CSA, and TUV, these RoHS and halogen-free devices ensure compliance and safety. Purchase online today for quick shipping and trusted protection in your next project.

Buy Littelfuse RHEF050 now and experience unmatched reliability and performance in high-temperature environments.

Frequently Asked Questions

Where can I buy Littelfuse RHEF050?

You can click on the BUY or RFQ button to purchase RHEF050 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part RHEF050?

You can download the RHEF050 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of RHEF050?

Littelfuse

Littelfuse Part List

Browse and search other Littelfuse parts, locate datasheets and stock

Sponsored by