Name: RKEF500
Brand: Littelfuse Inc.
SKU: RKEF500
Availability: InStock
Rating: 5 (147 reviews)

RKEF500

For Reference Only

Part Number	RKEF500
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH PTC RESET 5.0A T/H
Datasheet	RKEF500 Datasheet RKEF500 Specifications
Package	Radial, Disc
ECAD
In Stock	18,180 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Apr 29 - May 4 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # RKEF500 (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 RKEF500 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add RKEF500 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of RKEF500.

RKEF500 Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - PTC Resettable Fuses
Package	Radial, Disc
ECAD
Series	PolySwitch?, RKEF
Type	Polymeric
Voltage - Max	60V
Current - Max	40A
Current - Hold (Ih) (Max)	5A
Current - Trip (It)	10A
Time to Trip	28s
Resistance - Initial (Ri) (Min)	12 mOhms
Resistance - Post Trip (R1) (Max)	50 mOhms
Resistance - 25°C (Typ)	-
Operating Temperature	-40°C ~ 85°C
Ratings	-
Mounting Type	Through Hole
Package / Case	Radial, Disc
Size / Dimension	0.949" L x 0.118" W (24.10mm x 3.00mm)
Height - Seated (Max)	1.142" (29.00mm)
Thickness (Max)	-
Lead Spacing	0.199" (5.05mm)

RKEF500 Datasheet

RKEF500 Reviews

Max***** Dhar

April 3, 2023

★ ★ ★ ★ ★

Great product at a good price. No complaints.

Pet*****Hunt

March 16, 2023

★ ★ ★ ★ ★

I have always get a fast response from Heisener with my orders. As a small business owner I greatly appreciate that I can order as little as 1 item as opposed to other companies who require you place a larger minimum order.

Zaid*****arks

March 14, 2023

★ ★ ★ ★ ★

Not messy and easy to handle. I've used these professionally and for my self, and they never failed me.

Matt*****ozano

March 2, 2023

★ ★ ★ ★ ★

Used it on my system it works perfect as I need.

Juli*****urns

February 24, 2023

★ ★ ★ ★ ★

I was glad to find this product being sold at a great price. They were the perfect replacement.

Write a Review

★★★★★

Not Rated

Thanks for Your Review!

RKEF500 Packaging

RKEF500 FAQ

1. How to order RKEF500 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 RKEF500 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the RKEF500. All suppliers must pass our qualification reviews before they can publish their products including RKEF500 on Heisener; we pay more attention to the channels and quality of RKEF500 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the RKEF500 price and inventory displayed accurate?

The price and inventory of RKEF500 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 RKEF500?

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 RKEF500 we delivered, we will accept the replacement or return of the RKEF500 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 RKEF500.

(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 RKEF500 pin diagram, RKEF500 datasheet?

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

RKEF500 Related Products

ASTMUPLPFL-100.000MHZ-LJ-E-T3	Abracon LLC, OSC MEMS 100.000MHZ LVPECL SMD, 6-SMD, No Lead, PolySwitch?, RKEF	View
445W2XB25M00000	CTS-Frequency Controls, CRYSTAL 25.0000MHZ 13PF SMD, 2-SMD, No Lead, PolySwitch?, RKEF	View
TBJA106K010LBSB0024	AVX Corporation, CAP TANT 10UF 10% 10V 1206, 1206 (3216 Metric), PolySwitch?, RKEF	View
0603Y0631P50CAR	Knowles Syfer, CAP CER 0603, -, PolySwitch?, RKEF	View
RT9011-JGGJ6	Richtek USA Inc., IC REG LINEAR 1.8V/2.5V TSOT23-6, SOT-23-6 Thin, TSOT-23-6, PolySwitch?, RKEF	View
CAT5133ZI-10-GT3	ON Semiconductor, IC POT DIG 10K 128TAP 16V 10MSOP, 10-TFSOP, 10-MSOP (0.118", 3.00mm Width), PolySwitch?, RKEF	View
GW SBLMA1.EM-GUHQ-XX36-L1N2-65-R18	OSRAM Opto Semiconductors Inc., LED DURIS S2 WARM WHT 3500K, 0806 (2016 Metric), PolySwitch?, RKEF	View
MLBAWT-U1-0000-000VF7	Cree Inc., LED XLAMP WARM WHITE 3250K 4SMD, 4-SMD, J-Lead Exposed Pad, PolySwitch?, RKEF	View
RWR89SR392FSB12	Vishay Dale, RES 0.392 OHM 3W 1% WW AXIAL, Axial, PolySwitch?, RKEF	View
RWR74S1R50FRS73	Vishay Dale, RES 1.5 OHM 5W 1% WW AXIAL, Axial, PolySwitch?, RKEF	View
RL20S330GRSL	Vishay Dale, RES 33 OHM 1/2W 2% AXIAL, Axial, PolySwitch?, RKEF	View
ESM15DSUS	Sullins Connector Solutions, CONN EDGE DUAL FMALE 30POS 0.156, -, PolySwitch?, RKEF	View

RKEF500 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
RKEF500 D# E54:1762_11984086	Littelfuse Inc	PTC Resettable Fuse 5A(hold) 10A(trip) 60VDC 40A 5W 28s 0.012Ohm Radial 24.1 X 3 X 29mm Bag RoHS: Compliant	0
RKEF500-2 D# V36:1790_18207638	Littelfuse Inc	PTC Resettable Fuse 5A(hold) 10A(trip) 60VDC 40A 5W 28s 0.012Ohm Radial 24.1 X 3 X 29mm T/R	0
RKEF500-1 D# V36:1790_18209999	Littelfuse Inc	Poly Switch PTC, Overcurrent Protection Device RoHS: Compliant	0

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

RS60SB-500(CROSS: RKEF500)

OptiFuse

6000

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

Min Qty 250

6750

RKEF500-1

TE Connectivity

RLINE - Bag

Part Number

Manufacturer

Description

Stock

RKEF500

Littelfuse Inc

Polymeric 60V 10A 28s 50mohms Through Hole PTC Resettable Fuses RoHS

630

RKEF500K-2

Littelfuse Inc

Through Hole PTC Resettable Fuses RoHS

846

Part Number

Manufacturer

Description

Stock

RKEF500

Littelfuse Inc

RoHS (ship within 1day) - D/C 2019

Part Number	Manufacturer	Description	Stock
RKEF500-2 D# 18-RKEF500-2TR-ND	Littelfuse Inc	PTC RESET FUSE 60V 5A RADIAL	0
RKEF500K-2 D# RKEF500K-2TR-ND	Littelfuse Inc	PTC RESET FUSE 60V 5A RADIAL	0
RKEF500-1 D# RKEF500-1HF-ND	Littelfuse Inc	PTC RESET FUSE 60V 5A RADIAL	0
RKEF500 D# RKEF500HF-ND	Littelfuse Inc	PTC RESET FUSE 60V 5A RADIAL	1170

Part Number

Manufacturer

Description

Stock

RKEF500

In stock shipping within 2days

8260

Part Number

Manufacturer

Description

Stock

RKEF500

D# 2786681

Littelfuse Inc

FUSE, RESETTABLE PTC, 60VDC, 5A, THD

RoHS: Compliant

Min Qty: 1

Container: Each

918

Part Number

Manufacturer

Description

Stock

RKEF500

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

RKEF500-1

Littelfuse Inc

Resettable Fuses - PPTC 60V 40A 0.03Ohms

RoHS: Compliant

pbFree: Yes

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

In Stock

Part Number

Manufacturer

Description

Stock

RKEF500

D# C315962

Littelfuse Inc

601

RKEF500K-2

D# C468999

Littelfuse Inc

846

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

OEM/CM Immediate delivery

8000

Part Number

Manufacturer

Description

Stock

RKEF500

D# 650-RKEF500

Littelfuse Inc

Resettable Fuses - PPTC 60V 40A 5.00W Radial-leaded Device

RoHS: Compliant

655

RKEF500-2

D# 650-RKEF500-2

Littelfuse Inc

Resettable Fuses - PPTC RKEF500-2

RoHS: Compliant

1585

Part Number

Manufacturer

Description

Stock

RKEF500

D# 45P8096

Littelfuse Inc

FUSE, RESETTABLE PTC, 60V, 5A, RADIAL, Product Range:PolySwitch RKEF Series, Voltage Rating:60VDC, Holding Current:5A, Tripping Current:10A, Time to Trip:28s, Fuse Shape:Rectangular, Current Rating Max:40A, Lead Spacing:10.9mm RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

1799

RKEF500-1

D# 60R5405

Littelfuse Inc

Rline

RoHS: Not Compliant

Min Qty: 5000

Container: Bulk

Part Number

Manufacturer

Description

Stock

RKEF500

D# NS-RKEF500

TE Connectivity

OEM/CM ONLY

8128

Part Number

Manufacturer

Description

Stock

RKEF500

Littelfuse Inc

Part Number

Manufacturer

Description

Stock

RKEF500

D# 7127503

Littelfuse Inc

Littelfuse 5A Hold current, Radial Leaded PCB Mount Resettable Fuse, 60V, PK

Min Qty: 10

Container: Package

110

Part Number	Manufacturer	Description	Stock
RKEF5001	TE Connectivity	OEM/CM ONLY	276
RKEF500	TE Connectivity	OEM/CM ONLY	2551
RKEF5002	Littelfuse Inc	OEM/CM ONLY	811

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

IN stock Immediate delivery

8015

Part Number

Manufacturer

Description

Stock

RF3058-000

Littelfuse Inc

Resettable Fuses - PPTC 60V 5.0A-HD 40A MAX

pbFree: Pb-Free

RKEF500

Littelfuse Inc

Resettable Fuses - PPTC 60V 40A 5.00W Radial-leaded Device

pbFree: Pb-Free

Part Number

Manufacturer

Description

Stock

RKEF500

TE Connectivity

shipping today

3496

Part Number

Manufacturer

Description

Stock

RKEF500

D# 2474208

TE Connectivity

FUSE, PTC RESET, 60V, 40A, RADIAL

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

RKEF500

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