MPN

Littelfuse 0.9 A Resettable Fuse, 16 V dc

RS Stock No.:: 506-933
Mfr. Part No.:: RUSBF090
Manufacturer:: Littelfuse

Littelfuse 0.9 A Resettable Fuse, 16 V dc

This image is representative of the product range

Bulk discount available

Subtotal (1 pack of 5 units)*

PHP129.69

(exc. VAT)

PHP145.255

(inc. VAT)

FREE delivery for orders over ₱3,000.00

In Stock

80 unit(s) ready to ship from another location
Plus 235 unit(s) shipping from March 04, 2026

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

Units	Per Unit	Per Pack*
5 - 45	PHP25.938	PHP129.69
50 - 245	PHP25.16	PHP125.80
250 - 495	PHP24.38	PHP121.90
500 - 1245	PHP23.864	PHP119.32
1250 +	PHP23.344	PHP116.72

*price indicative

RS Stock No.:: 506-933
Mfr. Part No.:: RUSBF090
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	1.8A
	Product Type	Resettable Fuse
	Voltage	16 V dc
	Time to Trip	1.2s
	Current Rating	40 A
	Hold Current	0.9A
	Length	7.4mm
	Height	12.2mm
	Width	3.1 mm
	Minimum Resistance	0.07Ω
	Maximum Resistance	180mΩ
	Minimum Operating Temperature	-40°C
	Maximum Operating Temperature	60°C
	Power Dissipation	0.6W
	Standards/Approvals	RoHS, CSA, UL, TUV
	Series	RUSBF
	Lead Orientation	Radial

	Select all
	Brand Littelfuse
	Trip Current 1.8A
	Product Type Resettable Fuse
	Voltage 16 V dc
	Time to Trip 1.2s
	Current Rating 40 A
	Hold Current 0.9A
	Length 7.4mm
	Height 12.2mm
	Width 3.1 mm
	Minimum Resistance 0.07Ω
	Maximum Resistance 180mΩ
	Minimum Operating Temperature -40°C
	Maximum Operating Temperature 60°C
	Power Dissipation 0.6W
	Standards/Approvals RoHS, CSA, UL, TUV
	Series RUSBF
	Lead Orientation Radial

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