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Littelfuse RXEF0902 Radial-leaded PPTC device

PolySwitch resettable devices are radial-leaded PPTC components designed for overcurrent protection in electronic circuits. They feature reliable, fast trip times, low resistance, and broad current rating ranges from 50mA to 15A, with voltage ratings up to 72V. These RoHS and halogen-free components are suitable for a variety of applications including consumer electronics, industrial controls, power supplies, and communication devices. They are UL, CSA, TUV, and CQC recognized, offering excellent thermal and electrical performance in compact form factors for robust circuit protection.

Authorized Distributors
Source:Newark
Part No:RXEF090-2
Stock:95
Inv Date:05-28-2026
Price: Unit price: $0.587
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Source:DigiKey
Part No:RXEF090-2
Stock:4535
Inv Date:05-28-2026
Price: Unit price: $0.73
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Part No:RXEF090-2
Stock:1200
Inv Date:05-29-2026
Price: Unit price: $0.61
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Part No:RXEF090-2
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.26
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Part No:RXEF090-2
Stock:96000
Inv Date:05-28-2026
Price: Unit price: $0.285
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Source:Arrow EU
Part No:RXEF090-2
Stock:2675
Inv Date:05-29-2026
Price: N/A
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Part No:RXEF090-2
Stock:58
Inv Date:05-29-2026
Price: N/A
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Littelfuse RXEF0902 Radial-leaded PPTC device Specifications:

  • Lead Material: Tin-plated Nickel-copper Alloy, 0.128mm² (26AWG)
  • Solderability: Meets ANSI/J-STD-002 Category 3
  • Operation Temperature: -40°C to +85°C
  • Solder Heat Withstand: 5s at 260°C for RGEF250 and RGEF400; 10s for RGEF500 to RGEF1400
  • Insulating Material: Flame-retardant epoxy polymer, UL 94V-0
  • Physical Size: Length varies with model, with typical lead lengths around 16mm, diameters approximately 0.51mm to 0.81mm
  • Resistance Change (Passive Aging): 45% at 40°C and 85°C for 1000 hours
  • Humidity Resistance: 10% resistance change after 1000 hours at 85°C/85% RH
  • Thermal Shock Resistance: 10% resistance change after 10 cycles between -40°C and +85°C
  • Environmental Compliance: RoHS, ELV, halogen-free

Buy the Littelfuse RUEF – Reliable Circuit Protection Devices for Industrial Applications

Order Littelfuse RUEF radial-leaded PPTC resettable devices online today to ensure reliable overcurrent protection in your electronics. These high-quality, RoHS and halogen-free components are recognized internationally, offering fast trip times, low resistance, and broad current and voltage ratings suitable for power supplies, industrial controls, communication devices, and more. With compact size and robust thermal and electrical performance, purchase online now and safeguard your circuits efficiently with Littelfuse’s trusted circuit protection solutions, delivered quickly for your projects.

Get Littelfuse RUEF today—built for precision and long-lasting durability in electronic circuit protection.

Frequently Asked Questions

Where can I buy Littelfuse RXEF0902?

You can click on the BUY or RFQ button to purchase RXEF0902 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part RXEF0902?

You can download the RXEF0902 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of RXEF0902?

Littelfuse

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