Name: SRP420F
Brand: Littelfuse Inc.
SKU: SRP420F
Availability: InStock
Rating: 5 (94 reviews)

SRP420F

For Reference Only

Part Number	SRP420F
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH STRAP 4.20A HOLD
Datasheet	SRP420F Datasheet SRP420F Specifications
Package	Strap
ECAD
In Stock	290,712 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 29 - Jun 3 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # SRP420F (PTC Resettable Fuses) is manufactured by Littelfuse Inc. and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

For SRP420F specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add SRP420F with quantity into BOM. Heisener.com does NOT require any registration to request a quote of SRP420F.

SRP420F Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - PTC Resettable Fuses
Package	Strap
ECAD
Series	PolySwitch?, SRP
Type	Polymeric
Voltage - Max	30V
Current - Max	100A
Current - Hold (Ih) (Max)	4.2A
Current - Trip (It)	7.6A
Time to Trip	6s
Resistance - Initial (Ri) (Min)	12 mOhms
Resistance - Post Trip (R1) (Max)	40 mOhms
Resistance - 25°C (Typ)	-
Operating Temperature	-40°C ~ 85°C
Ratings	-
Mounting Type	User Defined
Package / Case	Strap
Size / Dimension	1.240" L x 0.522" W (31.50mm x 13.25mm)
Height - Seated (Max)	-
Thickness (Max)	0.043" (1.10mm)
Lead Spacing	-

SRP420F Datasheet

SRP420F Reviews

Tate*****lins

April 6, 2023

★ ★ ★ ★ ★

I am a novice technician. I really rely on reviews to help guide me, as I do not have anyone to assist me with electronics. I purchased these items and report I am happy with the purchase. I took a chance and it was one of the better choices I made.

Crist*****Clark

March 19, 2023

★ ★ ★ ★ ★

Great kit, cost half the price of other stores. Includes most items that someone would need.

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

SRP420F Packaging

SRP420F FAQ

1. How to order SRP420F on Heisener?

Currently, Heisener only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.
2. How does Heisener guarantee that SRP420F is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the SRP420F. All suppliers must pass our qualification reviews before they can publish their products including SRP420F on Heisener; we pay more attention to the channels and quality of SRP420F products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the SRP420F price and inventory displayed accurate?

The price and inventory of SRP420F fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.
4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.
5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.
6. What is the process for return or replacement of SRP420F?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SRP420F we delivered, we will accept the replacement or return of the SRP420F only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of SRP420F.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations
7.How to contact us to get technical supports, such as SRP420F pin diagram, SRP420F datasheet?

If you need any after-sales service, please do not hesitate to contact us.

SRP420F Related Products

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35YXG1800MEFCGC16X25	Rubycon, CAP ALUM 1800UF 20% 35V RADIAL, Radial, Can, PolySwitch?, SRP	View
20KPA44C-B	Littelfuse Inc., TVS DIODE 44VWM 76.34VC P600, P600, Axial, PolySwitch?, SRP	View
303JG1F	US Sensor, NTC THERMISTOR 30K OHM 1% DO35, DO-204AH, DO-35, Axial, PolySwitch?, SRP	View
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OSTT7202150	On Shore Technology Inc., TERM BLOCK RISING CLAMP 20POS, -, PolySwitch?, SRP	View
FW-13-05-L-D-565-100	Samtec Inc., .050'' BOARD SPACERS, -, PolySwitch?, SRP	View
0850420397	Molex, LLC, CONN DIN C FEMALE 32CKT, -, PolySwitch?, SRP	View
IMP4-3E0-4LL0-00-A	Artesyn Embedded Technologies, IMP CONFIGURABLE POWER SUPPLY, -, PolySwitch?, SRP	View
MP4-4NN-4QQ-4QQ-4QQ-4RR-00	Artesyn Embedded Technologies, MP CONFIGURABLE POWER SUPPLY, -, PolySwitch?, SRP	View
VE-JNW-MX	Vicor Corporation, CONVERTER MOD DC/DC 5.5V 75W, Half Brick, PolySwitch?, SRP	View

SRP420F Guarantees

Service Guarantees

We guarantee 100% customer satisfaction.

Our experienced sales team and tech support team back our services to satisfy all our customers.

Quality Guarantees

We provide 90 days warranty.

If the items you received were not in perfect quality, we would be responsible for your refund or replacement, but the items must be returned in their original condition.

Global Supply Chains - Reliable and Authorized Distributor Resources

Part Number

Manufacturer

Description

Stock

SRP420F

D# V99:2348_16264321

Littelfuse Inc

PTC Resettable Fuse 4.2A(hold) 7.6A(trip) 30V 100A 2.9W 6s 0.012Ohm SMD Solder Pad 32.4 X 13.6 X 1.1mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RASR-420(CROSS: SRP420F)

OptiFuse

5000

Part Number

Manufacturer

Description

Stock

SRP420F

TE Connectivity

POLYSWITCH STRAP 4.20A HOLD

18484

Part Number

Manufacturer

Description

Stock

SRP420F

D# SRP420F-ND

Littelfuse Inc

PTC RESET FUSE 30V 4.2A STRAP

19571

Part Number

Manufacturer

Description

Stock

SRP420F

D# 1345979

TE Connectivity

POLYSWITCH, STRAP, 4.2A

RoHS: Compliant

Min Qty: 1

Container: Cut Tape

Part Number

Manufacturer

Description

Stock

SRP420F

Littelfuse Inc

PPTC-STRAPS-PSW

RoHS: Compliant

pbFree: Yes

500

Part Number

Manufacturer

Description

Stock

SRP420F

D# XSFP00000184235

Littelfuse Inc

1000

Part Number

Manufacturer

Description

Stock

SRP420F

D# 31K9843

Littelfuse Inc

FUSE, PTC RESET, 30V, 4.2A, STRAP, Product Range:PolySwitch SRP Series, Voltage Rating:30VDC, Holding Current:4.2A, Tripping Current:7.6A, Time to Trip:6s, Current Rating Max:100A, Operating Temperature Min:-40°C, Length:32.4mm RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 500

Container: Bulk

Part Number

Manufacturer

Description

Stock

SRP420F

D# NS-SRP420F

TE Connectivity

OEM/CM ONLY

6770

RP420F24

D# NS-RP420F24

TE Connectivity

OEM/CM ONLY

2716

Part Number

Manufacturer

Description

Stock

RF1672-000

D# FUSE10258

Littelfuse Inc

4.2A 30V resettable PTCs strap

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

SRP420F

TE Connectivity

OEM/CM ONLY

378

SRP420FND

TE Connectivity

OEM/CM ONLY

116

Part Number

Manufacturer

Description

Stock

SRP420F

Littelfuse Inc

Resettable Fuses - PPTC 4.2A 30V

pbFree: Pb-Free

RF1672-000

Littelfuse Inc

Resettable Fuses - PPTC 30V 4.2A-HD 100A MAX

pbFree: Pb-Free

Part Number

Manufacturer

Description

Stock

SRP420F

D# 2786711

Littelfuse Inc

FUSE, RESETTABLE PTC, 30VDC, 4.2A, STRAP

RoHS: Compliant

Min Qty: 1

Container: Each

690

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SRP420F

Certified Quality

Heisener's commitment to quality has shaped our processes for sourcing, testing, shipping, and every step in between. This foundation underlies each component we sell.

ISO9001:2015, ICAS, IAF, UKAS