Littelfuse 0.5 A Resettable Fuse, 30 V

View all Resettable Fuses

Subtotal (1 pack of 5 units)*

£2.65

(exc. VAT)

£3.20

(inc. VAT)

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  • Plus 20 unit(s) shipping from 16 February 2026
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Units
Per unit
Per Pack*
5 +£0.53£2.65

*price indicative

Packaging Options:
RS Stock No.:
506-971
Mfr. Part No.:
RHEF050
Brand:
Littelfuse
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Brand

Littelfuse

Product Type

Resettable Fuse

Trip Current

920mA

Voltage

30 V

Current Rating

40 A

Time to Trip

2.5s

Hold Current

0.5A

Length

7.4mm

Height

12.7mm

Width

3 mm

Minimum Resistance

0.48Ω

Minimum Operating Temperature

-40°C

Maximum Resistance

1.1Ω

Power Dissipation

0.9W

Maximum Operating Temperature

60°C

Standards/Approvals

TUV, UL, RoHS, CSA

Series

RUSBF

Lead Orientation

Radial

PolySwitch™ PTC Devices RHEF Series


PCB Wire Ended


All are UL, CSA, TUV approved

Protection of electrical and electronic circuits against excessive currents

Rapid switch from low resistance state to very high resistance with electrical overload or short circuit

Quick and automatic reset and return to low resistance state when fault condition corrected and power removed

Features:


Automatically resets itself thousands of times

Maintenance free

Small size and no fuseholder required

Main applications:


Security systems

Power supplies and transformers

Power switching devices

Automotive and medical equipment

Instrumentation and control

Computers and peripherals

Audio visual and telecommunications

Approvals

UL, CSA, TUV

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