Name: LR4-190LF
Brand: Littelfuse Inc.
SKU: LR4-190LF
Availability: InStock
Rating: 5 (105 reviews)

LR4-190LF

For Reference Only

Part Number	LR4-190LF
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH PTC RESET 1.9A STRAP
Datasheet	LR4-190LF Datasheet LR4-190LF Specifications
Package	Strap
ECAD
In Stock	3,834 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 2 - May 7 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # LR4-190LF (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 LR4-190LF specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add LR4-190LF with quantity into BOM. Heisener.com does NOT require any registration to request a quote of LR4-190LF.

LR4-190LF Specifications

Manufacturer	Littelfuse Inc.
Category	Circuit Protection - PTC Resettable Fuses
Package	Strap
ECAD
Series	PolySwitch?, LR4
Type	Polymeric
Voltage - Max	15V
Current - Max	100A
Current - Hold (Ih) (Max)	1.9A
Current - Trip (It)	3.9A
Time to Trip	5s
Resistance - Initial (Ri) (Min)	39 mOhms
Resistance - Post Trip (R1) (Max)	102 mOhms
Resistance - 25°C (Typ)	-
Operating Temperature	-40°C ~ 85°C
Ratings	-
Mounting Type	User Defined
Package / Case	Strap
Size / Dimension	1.161" L x 0.205" W (29.50mm x 5.20mm)
Height - Seated (Max)	-
Thickness (Max)	-
Lead Spacing	-

LR4-190LF Datasheet

LR4-190LF Reviews

Lilli*****ogers

April 5, 2023

★ ★ ★ ★ ★

I took the chance and used it and I worked fine for me.

Octav*****lhoun

April 4, 2023

★ ★ ★ ★ ★

I've placed many orders from Heisener . I have never had an error with any order, the order has always went out the same day, and the items are always well packaged.

Cora *****rishnan

March 30, 2023

★ ★ ★ ★ ★

These are great for projects with the kids or doing any type of DIY projects. The case is nice to keep everything separated. Very nice.

Roya*****lder

March 29, 2023

★ ★ ★ ★ ★

Excellent service over extended period of time. Incredibly fast shipping, never any errors. Couldn't be more pleased.

Joce*****Zavala

March 21, 2023

★ ★ ★ ★ ★

The pricing is great. This is the first time I use Heisener Electronics but I will recommend it to my business partners.

Elij*****unter

March 5, 2023

★ ★ ★ ★ ★

Excellent shopping cart process, various of products for selection and order fulfillment a good service quality. I rely on them heavily.

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LR4-190LF Packaging

LR4-190LF FAQ

1. How to order LR4-190LF 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 LR4-190LF is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the LR4-190LF. All suppliers must pass our qualification reviews before they can publish their products including LR4-190LF on Heisener; we pay more attention to the channels and quality of LR4-190LF products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the LR4-190LF price and inventory displayed accurate?

The price and inventory of LR4-190LF 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 LR4-190LF?

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 LR4-190LF we delivered, we will accept the replacement or return of the LR4-190LF 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 LR4-190LF.

(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 LR4-190LF pin diagram, LR4-190LF datasheet?

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

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LR4-190LF 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

LR4-190LF

TE Connectivity

Resettable Fuses - PPTC 15V 1.9A Ih 0.102ohm

Part Number

Manufacturer

Description

Stock

LR4-190LF

D# LR4-190LF-ND

Littelfuse Inc

PTC RESET FUSE 15V 1.9A STRAP

Part Number

Manufacturer

Description

Stock

LR4-190LF

D# NS-LR4-190LF

TE Connectivity

OEM/CM ONLY

4297

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LR4-190LF

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