MPN

Littelfuse 1.85 A Resettable Fuse, 30V dc

RS Stock No.:: 517-6809
Distrelec Article No.:: 304-28-337
Mfr. Part No.:: RUEF185
Manufacturer:: Littelfuse

Littelfuse 1.85 A Resettable Fuse, 30V dc

This image is representative of the product range

Bulk discount available

View bulk pricing options

Subtotal (1 pack of 10 units)*

SGD5.88

(exc. GST)

SGD6.41

(inc. GST)

FREE delivery for orders over $75.00, or create a business account to enjoy free delivery from just $28

In Stock

700 unit(s) ready to ship from another location
Plus 580 unit(s) shipping from 02 October 2026
Plus 1,000 unit(s) shipping from 30 December 2026

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

Units	Per unit	Per Pack*
10 - 90	SGD0.588	SGD5.88
100 - 490	SGD0.577	SGD5.77
500 - 1490	SGD0.56	SGD5.60
1500 - 2490	SGD0.549	SGD5.49
2500 +	SGD0.538	SGD5.38

*price indicative

RS Stock No.:: 517-6809
Distrelec Article No.:: 304-28-337
Mfr. Part No.:: RUEF185
Manufacturer:: 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
	Product Type	Resettable Fuse
	Trip Current	3.7A
	Voltage	30V dc
	Current Rating	100A
	Time to Trip	8.7s
	Hold Current	1.85A
	Length	10.2mm
	Height	15.7mm
	Width	3mm
	Minimum Resistance	0.03Ω
	Maximum Resistance	90mΩ
	Minimum Operating Temperature	-40°C
	Power Dissipation	1W
	Maximum Operating Temperature	60°C
	Standards/Approvals	CSA, UL, CQC, RoHS, TUV
	Lead Orientation	Radial
	Series	RUEF

	Select all
	Brand Littelfuse
	Product Type Resettable Fuse
	Trip Current 3.7A
	Voltage 30V dc
	Current Rating 100A
	Time to Trip 8.7s
	Hold Current 1.85A
	Length 10.2mm
	Height 15.7mm
	Width 3mm
	Minimum Resistance 0.03Ω
	Maximum Resistance 90mΩ
	Minimum Operating Temperature -40°C
	Power Dissipation 1W
	Maximum Operating Temperature 60°C
	Standards/Approvals CSA, UL, CQC, RoHS, TUV
	Lead Orientation Radial
	Series RUEF

RGEF Series Datasheet

PolySwitch™ RUEF & RGEF 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

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