Name: RUEF300U
Brand: Littelfuse Inc.
SKU: RUEF300U
Availability: InStock
Rating: 5 (138 reviews)

RUEF300U

For Reference Only

Part Number	RUEF300U
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH PTC RESET 3A UNCOATED
Datasheet	RUEF300U Datasheet RUEF300U Specifications
Package	Radial, Disc
ECAD
In Stock	13,842 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 27 - Jun 1 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # RUEF300U (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 RUEF300U specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add RUEF300U with quantity into BOM. Heisener.com does NOT require any registration to request a quote of RUEF300U.

RUEF300U Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - PTC Resettable Fuses
Package	Radial, Disc
ECAD
Series	PolySwitch?, RUEF
Type	Polymeric
Voltage - Max	30V
Current - Max	100A
Current - Hold (Ih) (Max)	3A
Current - Trip (It)	6A
Time to Trip	10.8s
Resistance - Initial (Ri) (Min)	20 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	0.449" L x 0.118" W (11.40mm x 3.00mm)
Height - Seated (Max)	0.650" (16.50mm)
Thickness (Max)	-
Lead Spacing	0.199" (5.05mm)

RUEF300U Datasheet

RUEF300U Reviews

Henr*****ylor

April 7, 2023

★ ★ ★ ★ ★

Very good, fast shipping, super reliable seller.

Atti*****Giles

April 6, 2023

★ ★ ★ ★ ★

Awesome components selection and availability. Ordering process is easy. They don't spam me after the purchase.

Iker*****guson

March 30, 2023

★ ★ ★ ★ ★

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

Aleja*****Robbins

March 23, 2023

★ ★ ★ ★ ★

Easy transaction. Very pleased with goods in perfect condition would recommend Heisener company.

Quin*****lati

March 14, 2023

★ ★ ★ ★ ★

Didn’t need so many but it was cheap. I did have to solder extra wire on each end to make fit better but exactly you need of your looking for this particular mod.

Dav***** Sood

March 12, 2023

★ ★ ★ ★ ★

Great capacitors. very fast post very good communication.

Emer*****Avila

February 23, 2023

★ ★ ★ ★ ★

Outstanding supplier! Heisener is on a very short list of suppliers I can recommend. From stock, pricing, ease of ordering and great service, they get it all.

Monr*****arraf

February 22, 2023

★ ★ ★ ★ ★

So easy to do business with Heisener and they generally have stock on the items we need.

Edis*****obles

February 21, 2023

★ ★ ★ ★ ★

A well designed product that fit my custom PCB's perfectly. Easy to use. Sturdy construction. Highly recommend to all PCB builders.

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RUEF300U Packaging

RUEF300U FAQ

1. How to order RUEF300U 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 RUEF300U is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the RUEF300U. All suppliers must pass our qualification reviews before they can publish their products including RUEF300U on Heisener; we pay more attention to the channels and quality of RUEF300U products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the RUEF300U price and inventory displayed accurate?

The price and inventory of RUEF300U 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 RUEF300U?

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 RUEF300U we delivered, we will accept the replacement or return of the RUEF300U 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 RUEF300U.

(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 RUEF300U pin diagram, RUEF300U datasheet?

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

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RUEF300U 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

RUEF300U-2

D# V36:1790_18209436

Littelfuse Inc

PTC Resettable Fuse 3A(hold) 6A(trip) 30V 100A 2W 10.8s 0.02Ohm Radial 11.4 X 3 X 16.5mm T/R

RoHS: Compliant

RUEF300U

D# V99:2348_11453781

Littelfuse Inc

PTC Resettable Fuse 3A(hold) 6A(trip) 30VAC/30VDC 100A 2W 10.8s 0.02Ohm Radial 11.4 X 3 X 16.5mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RUEF300U

D# RUEF300U

TE Connectivity

PTC Resettable Fuse 100A 30V Bulk (Alt: RUEF300U)

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RUEF300U-2

TE Connectivity

6000

RUEF300U

TE Connectivity

1498

Part Number

Manufacturer

Description

Stock

RUEF300U

TE Connectivity

Lead time 49

2000

RUEF300U-2

TE Connectivity

Lead time 49

15000

Part Number

Manufacturer

Description

Stock

RUEF300U-2

D# RUEF300U-2-ND

Littelfuse Inc

PTC RESET FUSE 30V 3A RADIAL

RUEF300U

D# RUEF300U-ND

Littelfuse Inc

PTC RESET FUSE 30V 3A RADIAL

586

Part Number

Manufacturer

Description

Stock

RUEF300U

D# 2078269

Littelfuse Inc

RESETTABLE FUSE, PTC, 30V, 3A, RADIAL

RoHS: Compliant

Min Qty: 500

Container: Each

Part Number

Manufacturer

Description

Stock

RUEF300U-2

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

RUEF300U

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

8500

Part Number

Manufacturer

Description

Stock

RUEF300U

TE Connectivity

OEM/CM ONLY

275

RUEF300U2

TE Connectivity

OEM/CM ONLY

14722

Part Number

Manufacturer

Description

Stock

RUEF300U

TE Connectivity

In Stock

1498

RUEF300U-2

TE Connectivity

In Stock

6000

Part Number

Manufacturer

Description

Stock

RUEF300U

TETYCO

OEM/CM Immediate delivery

35470

Part Number

Manufacturer

Description

Stock

RUEF300U-2

D# 650-RUEF300U-2

Littelfuse Inc

Resettable Fuses - PPTC 30V 40A 2.00W UNCOAT PolySwitch Reset Dev

RoHS: Compliant

3000

RUEF300U

D# 650-RUEF300U

Littelfuse Inc

Resettable Fuses - PPTC 3A 30V 40A Imax

RoHS: Compliant

2947

Part Number

Manufacturer

Description

Stock

RUEF300U

D# XSFT00000048991

Littelfuse Inc

RUEF Series 30 V 3 A Ihold Through Hole Radial PolySwitch Resettable Fuse

6500

Part Number

Manufacturer

Description

Stock

RUEF300U

D# 03M0934

Littelfuse Inc

RESETTABLE FUSE, PTC, 30V, 3A, RADIAL, Product Range:PolySwitch RUEF Series, Voltage Rating:30VDC, Holding Current:3A, Tripping Current:6A, Time to Trip:10.8s, Fuse Shape:Rectangular, Current Rating Max:100A, Lead Spacing:5.8mm RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 500

Container: Bulk

Part Number

Manufacturer

Description

Stock

RUEF300U

D# NS-RUEF300U

TE Connectivity

OEM/CM ONLY

4538

RUEF300U-2

D# NS-RUEF300U-2

TE Connectivity

OEM/CM ONLY

5526

Part Number

Manufacturer

Description

Stock

RUEF300U

TE Connectivity

OEM/CM ONLY

23610

RUEF300U2

TE Connectivity

OEM/CM ONLY

6016

Part Number

Manufacturer

Description

Stock

RUEF300U

TETYCO

IN stock Immediate delivery

35455

Part Number	Manufacturer	Description	Stock
RUEF300U-2	Littelfuse Inc	Resettable Fuses - PPTC 30V 40A 2.00W UNCOAT PolySwitch Reset Dev pbFree: Pb-Free	0
RF1083-000	Littelfuse Inc	Resettable Fuses - PPTC 30V 3A-HD 40A MAX pbFree: Pb-Free	0
RF0106-000	Littelfuse Inc	Resettable Fuses - PPTC 30V 3A-HD 40A MAX pbFree: Pb-Free	0
RUEF300U	Littelfuse Inc	Resettable Fuses - PPTC 3A 30V 40A Imax pbFree: Pb-Free	0

Part Number

Manufacturer

Description

Stock

RUEF300U

TETYCO

shipping today

35466

Part Number

Manufacturer

Description

Stock

RUEF300U

D# 19466079

TE Connectivity

PTC Resettable Fuse 3A(hold) 6A(trip) 30VAC/30VDC 100A 2W 10.8s 0.02Ohm Radial 11.4 X 3 X 16.5mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

RUEF300U

D# 2078269

Littelfuse Inc

RESETTABLE FUSE, PTC, 30V, 3A, RADIAL

RoHS: Compliant

Min Qty: 1

Container: Each

Quick Inquiry

RUEF300U

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