MPN

Littelfuse 0.5 A Resettable Fuse, 60 V

RS Stock No.:: 712-7486
Mfr. Part No.:: RKEF050
Brand:: Littelfuse

Bulk discount available

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Subtotal (1 pack of 10 units)*

$6.79

(exc. GST)

$7.47

(inc. GST)

FREE delivery for orders over $60.00 ex GST

In Stock

Plus 10 unit(s) shipping from 04 May 2026
Plus 1,180 unit(s) shipping from 04 May 2026
Plus 3,500 unit(s) shipping from 11 May 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
10 - 140	$0.679	$6.79
150 - 490	$0.674	$6.74
500 - 990	$0.66	$6.60
1000 - 2490	$0.645	$6.45
2500 +	$0.63	$6.30

*price indicative

RS Stock No.:: 712-7486
Mfr. Part No.:: RKEF050
Brand:: Littelfuse

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Littelfuse
	Trip Current	1A
	Product Type	Resettable Fuse
	Voltage	60 V
	Current Rating	40 A
	Time to Trip	0.8s
	Hold Current	0.5A
	Length	7.1mm
	Height	11.43mm
	Width	3.56 mm
	Minimum Resistance	0.32Ω
	Maximum Resistance	900mΩ
	Minimum Operating Temperature	-40°C
	Power Dissipation	1W
	Maximum Operating Temperature	60°C
	Standards/Approvals	TUV, RoHS, CSA, UL
	Series	RKEF
	Lead Orientation	Radial

	Select all
	Brand Littelfuse
	Trip Current 1A
	Product Type Resettable Fuse
	Voltage 60 V
	Current Rating 40 A
	Time to Trip 0.8s
	Hold Current 0.5A
	Length 7.1mm
	Height 11.43mm
	Width 3.56 mm
	Minimum Resistance 0.32Ω
	Maximum Resistance 900mΩ
	Minimum Operating Temperature -40°C
	Power Dissipation 1W
	Maximum Operating Temperature 60°C
	Standards/Approvals TUV, RoHS, CSA, UL
	Series RKEF
	Lead Orientation Radial

Tyco PolySwitch™ PTC Devices RKEF 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