S4040NQTP

$1.83

Description：SCR 400V 40A TO263
Series：-

SKU:c3acf0ed7d3f Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 400V 40A TO263
Series：-
Mfr：Littelfuse Inc.
Package：Tube
Voltage - Off State：400 V
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：40 mA
Current - Hold (Ih) (Max)：60 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：430A, 520A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 125°C
Mounting Type：Surface Mount
Package / Case：TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
Supplier Device Package：TO-263 (D2PAK)
Voltage - On State (Vtm) (Max)：1.8 V
Current - On State (It (AV)) (Max)：25 A
Current - On State (It (RMS)) (Max)：40 A
Current - Off State (Max)：10 µA

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S4040NQTP

Overview

The Littelfuse S4040NQTP is a Silicon Controlled Rectifier (SCR) rated for 400V repetitive off-state voltage and 40A RMS on-state current. It features a gate trigger voltage of 1.5V maximum and a gate trigger current of 40mA maximum. The device has a forward voltage drop of 1.8V and operates within a temperature range of -40°C to +125°C. It utilizes an SMTO-263-2 package with surface mount mounting style.

Feature Summary

Standard recovery thyristor design
Surface mount TO-263 package configuration
High thermal stability operation

Applications

Industrial equipment power control
OEM production circuits
Maintenance repair electronics

Procurement Notes

Verify component status as the S4040NQTP may be obsolete. Confirm availability of equivalent parts such as the S4040NQRP. Ensure datasheet specifications match application requirements before procurement. Check for RoHS compliance details in official documentation.

Selection Notes

Select this SCR for applications requiring 400V blocking capability and 40A continuous current handling. Consider the standard recovery characteristics for general purpose switching. Evaluate the TO-263 package for thermal management needs. Verify gate drive compatibility with specified trigger parameters.

Part Context

This component belongs to the S4040x series of SCRs manufactured by Littelfuse under the Teccor brand. These devices are designed for robust power control applications. The series offers standardized electrical characteristics suitable for industrial and commercial power electronics systems.

Replacement Considerations

The S4040NQRP is listed as a parametric equivalent substitute. Verify pinout and package compatibility when replacing the obsolete S4040NQTP with available alternatives.

How to buy

Online and offline orders are supported. If the item is available for online purchase, you can place it in the cart; for wholesale pricing, please contact our product manager for a quote.

Payment Method

Payment methods: T/T, WeChat Pay, credit cards, Google Pay, Apple Pay . Buyer covers shipping, fees, duties, and taxes; contact our product manager if you need a contract/procurement process.

Delivery time

In-stock items usually ship within 24 hours. Otherwise, shipment is arranged 1 to 2 days after the items arrive at our warehouse. Timing depends on destination and shipping method.

Freight calculation

Freight cost depends on destination, package size, and weight . We offer shipping options via DHL, FedEx, UPS, and TNT , and can ship using your freight account upon request.

Mode of Transportation

We ship via DHL, FedEx, UPS, and TNT. If you prefer a specific logistics provider, we can ship using your designated carrier.

Return and Refund

Returns are accepted within 60 days of invoice with RMA approval. Items must be resalable; original invoice and test report are required. No returns for customer errors.