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SRP420F

Name: Littelfuse SRP420F
Brand: Littelfuse
SKU: 650-SRP420F
Price: 0.86 EUR
Availability: InStock

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Mouser No:

650-SRP420F

Mfr. No:

SRP420F

Mfr.:

Littelfuse

Description:

Resettable Fuses - PPTC 4.2A 30V

Datasheet:

SRP420F Datasheet

ECAD Model:

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More Information

Learn more about Littelfuse SRP420F

In Stock: 10.125

Stock:: 10.125

Can Dispatch Immediately

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On Order:: 7.000

Expected 6/10/2026
Factory Lead Time:: 15

Weeks Estimated factory production time for quantities greater than shown.

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Unit Price:

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Ext. Price:

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Pricing (EUR)

Qty.	Unit Price	Ext. Price
	0,869 €	0,87 €
	0,632 €	3,16 €
	0,592 €	5,92 €
	0,558 €	558,00 €
	0,545 €	1.362,50 €

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Product Attribute	Attribute Value	Select Attribute
Manufacturer:	Littelfuse
Product Category:	Resettable Fuses - PPTC
RoHS:
Series:	SRP
Mounting Style:	Strap Mount
Termination Style:	SMD/SMT
Hold Current:	4.2 A
Maximum Voltage:	30 VDC
Trip Current:	7.6 A
Current Rating - Max:	100 A
Resistance:	40 mOhms
Minimum Operating Temperature:	- 40 C
Maximum Operating Temperature:	+ 85 C
Packaging:	Bulk
Brand:	Littelfuse
Country of Assembly:	Not Available
Country of Diffusion:	Not Available
Country of Origin:	CN
Height:	1.1 mm
Length:	32.4 mm
Pd - Power Dissipation:	2.2 W
Product Type:	Resettable Fuses - PPTC
Factory Pack Quantity:	500
Subcategory:	PPTC Resettable Fuses
Tradename:	PolySwitch
Type:	PolySwitch Resettable Fuses
Width:	13.6 mm
Part # Aliases:	RF1672-000
Unit Weight:	476,613 mg

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Datasheet

SRP420F Datasheet

PCN

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TARIC:: 8533210000
CNHTS:: 8533400000
CAHTS:: 8533400000
USHTS:: 8533408070
JPHTS:: 853340000
KRHTS:: 8533299000
MXHTS:: 85332999
BRHTS:: 85332900
ECCN:: EAR99

Indoor LED Lighting Circuit Protection

Littelfuse Indoor LED Lighting Circuit Protection ensures a long operating life, increased energy efficiency, and safety. LEDs can be damaged by voltage or current surges, and by extreme temperatures. Littelfuse circuit protection technology protects LED assemblies from potential damage. Important circuit protection technologies include metal-oxide varistors (MOVs), transient voltage suppression (TVS) diodes, and fuses.

Automotive Application Solutions

Littelfuse Automotive Solutions contain a portfolio of AEC-Q101 and AEC-Q200 qualified TVS diodes, diode arrays, varistors, multilayer varistors, and POLY-FUSE® PTCs. Each new generation of vehicles has an increased number of electronics that control everything from the radio to fuel injection. Littelfuse provides circuit protection solutions for a range of difficult automotive applications.

ECall Solutions

Littelfuse ECall Solutions help preserve an automobile's ability to call the nearest emergency center after a crash. A range of Littelfuse TVS diodes and diode arrays, MLVs, MOVs, fuses, and more defend against the overcurrents, ESD, load dump, and surges that threaten these critical safety-based functionalities.

Battery Strap PolySwitch PTCs

Littelfuse Battery Strap PolySwitch Resettable Polymeric Positive Temperature Coefficient (PPTC) Devices provide reliable, non-cycling protection against overcharging and short circuit events for rechargeable battery cells where resettable protection is desired. The axial leaded products offer several material platforms to help protect battery applications. Each material platform offers different performance characteristics that allow the engineer greater design flexibility. Littelfuse PolySwitch devices for battery protection include the SRP, LR4, VTP, VLP, VLR series, disc, and other special application strap devices.

PolySwitch Resettable Devices

Littelfuse PolySwitch and POLY-FUSE Devices are Polymeric Positive Temperature Coefficient (PPTC) devices that offer a resettable overcurrent protection alternative, reducing warranty, service, and repair costs. PTCs increase resistance as temperature increases due to increased flow. The components are designed to limit unsafe currents while allowing constant safe current levels, resistance will "reset" automatically when the fault is removed, and temperature returns to safe levels. The ability of the PTCs to reset themselves after exposure to a fault current makes them ideal within circuits that are not easily accessible. PTCs are typically used as circuit protection in applications where sensitive components are at constant risk of damage from overcurrent conditions. The components are also ideal for situations where frequent overcurrent conditions occur or constant uptime is required. Littelfuse Resettable PTCs (PPTCs) are typically used in consumer electronics, power line, telecom, I/O port, process control and medical equipment protection applications.