Name: RKEF300
Brand: Littelfuse Inc.
SKU: RKEF300
Availability: InStock
Rating: 5 (122 reviews)

RKEF300

For Reference Only

Part Number	RKEF300
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH PTC RESET 3A T/H
Datasheet	RKEF300 Datasheet RKEF300 Specifications
Package	Radial, Disc
ECAD
In Stock	5,184 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	Jun 15 - Jun 20 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # RKEF300 (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 RKEF300 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add RKEF300 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of RKEF300.

RKEF300 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)	3A
Current - Trip (It)	6A
Time to Trip	19.8s
Resistance - Initial (Ri) (Min)	30 mOhms
Resistance - Post Trip (R1) (Max)	80 mOhms
Resistance - 25°C (Typ)	-
Operating Temperature	-40°C ~ 85°C
Ratings	-
Mounting Type	Through Hole
Package / Case	Radial, Disc
Size / Dimension	0.650" L x 0.118" W (16.50mm x 3.00mm)
Height - Seated (Max)	0.835" (21.20mm)
Thickness (Max)	-
Lead Spacing	0.199" (5.05mm)

RKEF300 Datasheet

RKEF300 Reviews

Lucc*****osta

March 25, 2023

★ ★ ★ ★ ★

Excellent service and product arrives in reasonable shipping rates. Well done!

Otto*****ersen

March 24, 2023

★ ★ ★ ★ ★

All OK, fast delivery, good quality. Product works as it should, Nice Seller.

Kyrie*****terjee

March 13, 2023

★ ★ ★ ★ ★

Replaced a diode in my distortion pedal. Sounds different (lower growl) but in a good way...LOL!

Jenni*****uffman

March 7, 2023

★ ★ ★ ★ ★

Excellent ! RKEF300 item arrived very quickly and was packaged well, no issues.

Gera*****Bains

March 6, 2023

★ ★ ★ ★ ★

As I said before, your crew rock's keep up the fantastic work as we need you out there.

Kel***** Devi

March 5, 2023

★ ★ ★ ★ ★

Worked perfectly for my application. Worked like a charm!

Vera*****haria

March 4, 2023

★ ★ ★ ★ ★

It arrived earlier than the deadline. All is OK. Thank you

Lang***** Wyatt

March 1, 2023

★ ★ ★ ★ ★

Very user friendly to find part and specs. Easy to deal with the transaction for different payment types. Thanks!

Aro*****ngram

February 21, 2023

★ ★ ★ ★ ★

These are a great value at this price.

Write a Review

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RKEF300 Packaging

RKEF300 FAQ

1. How to order RKEF300 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 RKEF300 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the RKEF300. All suppliers must pass our qualification reviews before they can publish their products including RKEF300 on Heisener; we pay more attention to the channels and quality of RKEF300 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the RKEF300 price and inventory displayed accurate?

The price and inventory of RKEF300 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 RKEF300?

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 RKEF300 we delivered, we will accept the replacement or return of the RKEF300 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 RKEF300.

(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 RKEF300 pin diagram, RKEF300 datasheet?

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

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RKEF300 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

RKEF300-2

D# V36:1790_18207525

Littelfuse Inc

RF3796-000

RKEF300

D# V99:2348_11453185

Littelfuse Inc

PTC Resettable Fuse 3A(hold) 6A(trip) 60V 40A 3.2W 19.8s 0.03Ohm Radial 16.5 X 3 X 21.2mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

158

RS60SB-300(CROSS: RKEF300)

OptiFuse

6000

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

Min Qty 250

4250

Part Number

Manufacturer

Description

Stock

RKEF300

D# C1S425201064767

Littelfuse Inc

PTC Resettable Fuse 3A(hold) 6A(trip) 60V 40A 3.2W 19.8s 0.03Ohm Radial 16.5 X 3 X 21.2mm Bag

RoHS: Compliant

pbFree: Yes

Min Qty: 5

Container: Bulk

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

PTC Resettable Fuse, Through Hole Mount

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RKEF300

Littelfuse Inc

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

161

Part Number

Manufacturer

Description

Stock

RKEF300

D# RKEF300HF-ND

Littelfuse Inc

PTC RESET FUSE 60V 3A RADIAL

RKEF300-2

D# RKEF300-2CT-ND

Littelfuse Inc

PTC RESET FUSE 60V 3A RADIAL

222

Part Number

Manufacturer

Description

Stock

RKEF300.

D# 3103231

Littelfuse Inc

PPTC RESETTABLE FUSE, 3A, 60VDC, RADIAL

RoHS: Compliant

Min Qty: 1

Container: Each

RKEF300

D# 2474206

Littelfuse Inc

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

RoHS: Compliant

Min Qty: 1

Container: Each

Part Number

Manufacturer

Description

Stock

RKEF300

TE CONNECTIVITY

In Stock

158

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

OEM/CM Immediate delivery

88000

Part Number

Manufacturer

Description

Stock

RKEF300-2

D# 650-RKEF300-2

Littelfuse Inc

Resettable Fuses - PPTC

RoHS: Compliant

212

Part Number

Manufacturer

Description

Stock

RKEF300

D# 45P8093

Littelfuse Inc

PPTC RESETTABLE FUSE, 3A, 60VDC, RADIAL, Product Range:PolySwitch RKEF Series, Voltage Rating:60VDC, Holding Current:3A, Tripping Current:6A, Time to Trip:19.8s, Fuse Shape:Rectangular, Current Rating Max:40A, Lead Spacing:5.84mm RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 1

Container: Bulk

Part Number

Manufacturer

Description

Stock

RKEF300

D# NS-RKEF300

TE Connectivity

OEM/CM ONLY

7887

Part Number

Manufacturer

Description

Stock

RKEF300

Littelfuse Inc

128

Part Number

Manufacturer

Description

Stock

RKEF300

D# 7127506

Littelfuse Inc

Littelfuse 3A Hold current, Radial Leaded PCB Mount Resettable Fuse, 60V, PK

Min Qty: 10

Container: Package

890

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

OEM/CM ONLY

2766

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

IN stock Immediate delivery

87985

Part Number

Manufacturer

Description

Stock

RKEF300

Littelfuse Inc

Resettable Fuses - PPTC 60V 40A 3.20W Radial-leaded Device

pbFree: Pb-Free

RF3374-000

Littelfuse Inc

60V 3.0A-HD 40A MAX

pbFree: Pb-Free

Part Number

Manufacturer

Description

Stock

RKEF300

TE Connectivity

shipping today

87696

Part Number

Manufacturer

Description

Stock

RKEF300

D# 31270973

Littelfuse Inc

PTC Resettable Fuse 3A(hold) 6A(trip) 60V 40A 3.2W 19.8s 0.03Ohm Radial 16.5 X 3 X 21.2mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RKEF300.

D# 3103231

Littelfuse Inc

PPTC RESETTABLE FUSE, 3A, 60VDC, RADIAL

RoHS: Compliant

Min Qty: 1

Container: Each

RKEF300

D# 2474206

Littelfuse Inc

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

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

RKEF300

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