MPN

Littelfuse 2.5 A Resettable Fuse, 16 V dc

RS Stock No.:: 506-959
Mfr. Part No.:: RUSBF250
Manufacturer:: Littelfuse

Littelfuse 2.5 A Resettable Fuse, 16 V dc

This image is representative of the product range

Bulk discount available

Subtotal (1 pack of 5 units)*

PHP149.29

(exc. VAT)

PHP167.205

(inc. VAT)

FREE delivery for orders over ₱3,000.00

In Stock

15 unit(s) ready to ship from another location
Plus 490 unit(s) shipping from March 11, 2026

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

Units	Per Unit	Per Pack*
5 - 70	PHP29.858	PHP149.29
75 - 245	PHP29.232	PHP146.16
250 - 495	PHP28.354	PHP141.77
500 - 1245	PHP27.654	PHP138.27
1250 +	PHP27.052	PHP135.26

*price indicative

RS Stock No.:: 506-959
Mfr. Part No.:: RUSBF250
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
	Trip Current	5A
	Product Type	Resettable Fuse
	Voltage	16 V dc
	Time to Trip	40s
	Current Rating	40 A
	Hold Current	2.5A
	Length	11.4mm
	Height	18.3mm
	Width	3 mm
	Minimum Resistance	0.02Ω
	Minimum Operating Temperature	-40°C
	Maximum Resistance	60mΩ
	Maximum Operating Temperature	60°C
	Power Dissipation	1.2W
	Standards/Approvals	RoHS, CSA, TUV, UL
	Lead Orientation	Radial
	Series	RUSBF

	Select all
	Brand Littelfuse
	Trip Current 5A
	Product Type Resettable Fuse
	Voltage 16 V dc
	Time to Trip 40s
	Current Rating 40 A
	Hold Current 2.5A
	Length 11.4mm
	Height 18.3mm
	Width 3 mm
	Minimum Resistance 0.02Ω
	Minimum Operating Temperature -40°C
	Maximum Resistance 60mΩ
	Maximum Operating Temperature 60°C
	Power Dissipation 1.2W
	Standards/Approvals RoHS, CSA, TUV, UL
	Lead Orientation Radial
	Series RUSBF

PolySwitch™ PTC Devices RUSBF 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