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Littelfuse RUEF185 Circuit Protector

The RUEF185 is a 30V resettable circuit protection device designed for electronic circuits requiring reliable overcurrent protection. Its flame-retardant epoxy construction ensures durability in various applications such as power supplies, consumer electronics, and industrial controls. Capable of withstanding ambient temperatures from -40°C to 85°C and high fault currents, this device features a low resistance state in normal operation and quickly trips under fault conditions to prevent circuit damage. Its RoHS and ELV compliance make it suitable for environmentally conscious designs, ensuring safety and regulatory adherence.

Authorized Distributors
Source:Newark
Part No:RUEF185
Stock:444
Inv Date:05-28-2026
Price: Unit price: $0.536
Buy/RFQ:
Source:DigiKey
Part No:RUEF185
Stock:32068
Inv Date:05-28-2026
Price: Unit price: $0.57
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Part No:RUEF185
Stock:17392
Inv Date:05-29-2026
Price: Unit price: $0.47
Buy/RFQ:
Part No:RUEF185
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.45
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Part No:RUEF185
Stock:0
Inv Date:05-28-2026
Price: Unit price: $0.295
Buy/RFQ:
Source:Arrow EU
Part No:RUEF185
Stock:84000
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:
Part No:RUEF185
Stock:408
Inv Date:05-29-2026
Price: N/A
Buy/RFQ:

Littelfuse RUEF185 Circuit Protector Specifications:

  • Voltage Rating: 30V
  • Hold Current: 1.85A
  • Trip Current: 3.70A
  • Maximum Operating Temperature: 85°C
  • Ambient Temperature Range: -40°C to 85°C
  • Resistance in Normal State: Low (specified in datasheet)
  • Material: Flame-retardant epoxy polymer, UL 94V-0
  • Solderability: Per ANSI/J-STD-002 Category 3
  • Solder Heat Withstand: 10 seconds at 260°C +5°C
  • Lead Material: Tin-plated copper alloy, 20 in² (24AWG)
  • Environmental Standards: RoHS, ELV Compliant

Buy the TE Series RUEF Circuit Protector: 30V 1.85A

Secure your electronics with the TE Series RUEF185 circuit protection device, offering dependable overcurrent protection at 30V. Its RoHS and ELV compliance ensure environmental safety and regulatory adherence. Designed for a wide ambient temperature range from -40°C to 85°C, it withstands high fault currents and operates with low resistance in normal conditions. Easy to solder with ANSI/J-STD-002 Category 3 standards, it is ideal for consumer, industrial, and control applications. Purchase online today to protect your valuable electronic systems efficiently and reliably.

Order your TE Series RUEF185 circuit protection device today and ensure reliable overcurrent protection for your electronic projects.

Frequently Asked Questions

Where can I buy Littelfuse RUEF185?

You can click on the BUY or RFQ button to purchase RUEF185 from an authorized Littelfuse distributor.

How do I troubleshoot issues or seek technical support for part RUEF185?

You can download the RUEF185 datasheet or visit the Littelfuse website for support.

Who is the manufacturer of RUEF185?

Littelfuse

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