Name: S4040RQ3
Brand: Littelfuse Inc.
SKU: S4040RQ3
Availability: InStock
Rating: 5 (156 reviews)

S4040RQ3

For Reference Only

Part Number	S4040RQ3
Manufacturer	Littelfuse Inc.
Description	SCR 400V 40A LOW TQ TO220
Datasheet	S4040RQ3 Datasheet S4040RQ3 Specifications
Package	TO-220-3
ECAD
In Stock	6,272 piece(s)
Unit Price	Request a Quote
Lead Time	To be Confirmed
Estimated Delivery Time	May 24 - May 29 (Choose Expedited Shipping)
Request for Quotation

Payment Methods
Delivery Services

Part Number # S4040RQ3 (Thyristors - SCRs) 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 S4040RQ3 specifications/configurations, quotation, lead time, payment terms of further enquiries please have no hesitation to contact us. To process your RFQ, please add S4040RQ3 with quantity into BOM. Heisener.com does NOT require any registration to request a quote of S4040RQ3.

S4040RQ3 Specifications

Manufacturer	Littelfuse Inc.
Category	Discrete Semiconductor Products - Thyristors - SCRs
Package	TO-220-3
ECAD
Series	-
Voltage - Off State	400V
Voltage - Gate Trigger (Vgt) (Max)	1.5V
Current - Gate Trigger (Igt) (Max)	40mA
Voltage - On State (Vtm) (Max)	1.8V
Current - On State (It (AV)) (Max)	25A
Current - On State (It (RMS)) (Max)	40A
Current - Hold (Ih) (Max)	60mA
Current - Off State (Max)	10µA
Current - Non Rep. Surge 50, 60Hz (Itsm)	430A, 520A
SCR Type	Standard Recovery
Operating Temperature	-40°C ~ 125°C
Mounting Type	Through Hole
Package / Case	TO-220-3
Supplier Device Package	TO-220AB-R

S4040RQ3 Datasheet

S4040RQ3 Reviews

Madel*****Taylor

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.

Min*****aidu

March 30, 2023

★ ★ ★ ★ ★

Item came in time and looks as described.

Tian*****lwar

March 28, 2023

★ ★ ★ ★ ★

These function just as well. You do need to spend some time modifying the harness, but no big deal.

Zoe*****ran

March 22, 2023

★ ★ ★ ★ ★

Most of the reviews for this product were positive so I took a chance.

Hadlei*****udhary

March 18, 2023

★ ★ ★ ★ ★

received with well packed and good parts, every piece of the S4040RQ3 works well.

Isma*****ojas

March 13, 2023

★ ★ ★ ★ ★

Purchased this in May and didn't use it until last week. worked and all was good.

Lew*****Mital

March 9, 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.

Ellio*****naldson

March 7, 2023

★ ★ ★ ★ ★

The helper is super handy, especially if you work with medium size PCB boards as it allows to hold the board steady in every position. It feels pretty sturdy and of good quality.

Nicho*****urtis

February 19, 2023

★ ★ ★ ★ ★

Bought these to help prevent solar panels from feeding back. Works great and doesn't get as hot.

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S4040RQ3 Packaging

S4040RQ3 FAQ

1. How to order S4040RQ3 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 S4040RQ3 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the S4040RQ3. All suppliers must pass our qualification reviews before they can publish their products including S4040RQ3 on Heisener; we pay more attention to the channels and quality of S4040RQ3 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
3. Are the S4040RQ3 price and inventory displayed accurate?

The price and inventory of S4040RQ3 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 S4040RQ3?

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 S4040RQ3 we delivered, we will accept the replacement or return of the S4040RQ3 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 S4040RQ3.

(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 S4040RQ3 pin diagram, S4040RQ3 datasheet?

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

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S4040RQ3 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

S4040RQ3TP

Littelfuse Inc

249

S4040RQ3

Littelfuse Inc

198

Part Number

Manufacturer

Description

Stock

S4040RQ3TP

D# F7915-ND

Littelfuse Inc

SCR 400V 40A TO220AB-R

S4040RQ3

D# S4040RQ3-ND

Littelfuse Inc

SCR 400V 40A TO220AB-R

Part Number

Manufacturer

Description

Stock

S4040RQ3

LITTELFUSE(RoHS)

OEM/CM QUOTES ONLY | NO BROKERS

236

S4040RQ3TP

LITTELFUSE(RoHS)

OEM/CM QUOTES ONLY | NO BROKERS

296

Part Number

Manufacturer

Description

Stock

S4040RQ3TP

D# 64X7118

Littelfuse Inc

SCR 400V 40A LOW TQ TO220 / TUBE

RoHS: Not Compliant

Min Qty: 1000

Container: Bulk

Part Number

Manufacturer

Description

Stock

S4040RQ3TP

Littelfuse Inc

199

S4040RQ3

Littelfuse Inc

158

Part Number

Manufacturer

Description

Stock

S4040RQ3

Littelfuse Inc

OEM/CM ONLY

214

S4040RQ3TP

Littelfuse Inc

OEM/CM ONLY

360

Part Number

Manufacturer

Description

Stock

S4040RQ3TP

Littelfuse Inc

SCRs 400V 40A

Quick Inquiry

S4040RQ3

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