Name: LR4-190F
Brand: Littelfuse Inc.
SKU: LR4-190F
Availability: InStock
Rating: 5 (112 reviews)

LR4-190F

For Reference Only

Part Number	LR4-190F
Manufacturer	Littelfuse Inc.
Description	POLYSWITCH PTC RESET 1.9A STRAP
Datasheet	LR4-190F Datasheet LR4-190F Specifications
Package	Strap
ECAD
In Stock	32,004 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 20 - May 25 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

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

LR4-190F 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	0.827" L x 0.205" W (21.00mm x 5.20mm)
Height - Seated (Max)	-
Thickness (Max)	-
Lead Spacing	-

LR4-190F Datasheet

LR4-190F Reviews

Eliez*****iedman

April 1, 2023

★ ★ ★ ★ ★

Does what it says. As with this this type of device it is important to have it mounted so that heat can dissipate. The higher the amperage the hotter the device.

Nico*****Taneja

March 31, 2023

★ ★ ★ ★ ★

Excellent company. Product as described. Usually fast and well packed.Very nice.

Bowe*****anna

March 29, 2023

★ ★ ★ ★ ★

I was able to make my list of needed parts and use suggested products. The big plus is the fact they show inventory quantity.

Alo***** Dyal

March 18, 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.

Majo*****rrow

March 13, 2023

★ ★ ★ ★ ★

Worked very well! I would highly recommend buying.

Blai*****athur

March 5, 2023

★ ★ ★ ★ ★

I took time to note down but perfect after several months of use

Eli***** Vega

February 26, 2023

★ ★ ★ ★ ★

I was able to make my list of needed parts and use suggested relative selection. The five stars represent the fact they show inventory quantity. So far i'm happy.

Lond*****ayne

February 20, 2023

★ ★ ★ ★ ★

2nd time buying these - quite good. Very fast shipping

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LR4-190F Packaging

LR4-190F FAQ

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

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

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

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

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

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

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LR4-190F 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

LR4-190F

D# V99:2348_16264247

Littelfuse Inc

PTC Resettable Fuse 1.9A(hold) 3.9A(trip) 15VDC 100A 1.2W 5s 0.039Ohm SMD Solder Pad 22.1 X 5.5 X 1mm Bag

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

LR4-190F

D# LR4-190F

TE Connectivity

PTC Resettable Fuse 100A 15V Bulk - Bag (Alt: LR4-190F)

RoHS: Compliant

Part Number

Manufacturer

Description

Stock

LR4-190F

TE Connectivity

972

RALR-190(CROSS: LR4-190F)

OptiFuse

5000

Part Number

Manufacturer

Description

Stock

LR4-190F

TE Connectivity

POLYSWITCH PTC RESET 1.9A STRAP

7263

Part Number

Manufacturer

Description

Stock

LR4-190F

D# LR4-190F-ND

Littelfuse Inc

PTC RESET FUSE 15V 1.9A STRAP

950

Part Number

Manufacturer

Description

Stock

LR4-190F

Littelfuse Inc

RoHS: Compliant

pbFree: Yes

Part Number

Manufacturer

Description

Stock

LR4-190F

TE Connectivity

In Stock

972

Part Number

Manufacturer

Description

Stock

LR4-190F

D# 650-LR4-190F

Littelfuse Inc

Resettable Fuses - PPTC LR4-190F

RoHS: Compliant

1851

Part Number

Manufacturer

Description

Stock

LR4-190F

D# 99H0117

Littelfuse Inc

FUSE, PTC RESET, 15V, 1.9A, STRAP, Product Range:PolySwitch LR4 Series, Voltage Rating:15VDC, Holding Current:1.9A, Tripping Current:3.9A, Time to Trip:5s, Current Rating Max:100A, Operating Temperature Min:-, External Depth:1mm RoHS Compliant: Yes

RoHS: Compliant

Min Qty: 10000

Container: Bulk

Part Number

Manufacturer

Description

Stock

LR4-190F

D# NS-LR4-190F

Multiple

OEM/CM ONLY

2129

Part Number

Manufacturer

Description

Stock

LR4190F

TE Connectivity

OEM/CM ONLY

2928

Part Number

Manufacturer

Description

Stock

LR4-190F

D# 25896582

Littelfuse Inc

PTC Resettable Fuse 1.9A(hold) 3.9A(trip) 15VDC 100A 1.2W 5s 0.039Ohm SMD Solder Pad 22.1 X 5.5 X 1mm Bag

RoHS: Compliant

Quick Inquiry

LR4-190F

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.

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