S4055NTP

$2.07

Description：SCR 400V 55A TO263
Series：-

SKU:4b155d31a3eb Category: SCRs Brand: Littelfuse Inc.

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：SCR 400V 55A 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)：550A, 650A
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)：35 A
Current - On State (It (RMS)) (Max)：55 A
Current - Off State (Max)：10 µA

Download product information

S4055NTP

Overview

The S4055NTP is a Silicon Controlled Rectifier (SCR) from the Teccor Sxx55x series, manufactured by Littelfuse. It features a rated repetitive off-state voltage of 400 V and an RMS on-state current of 55 A. The device operates within a temperature range of -40°C to +125°C and utilizes a TO-220-2 package for through-hole mounting. Key electrical characteristics include a maximum holding current of 60 mA, a gate trigger voltage of 1.5 V, and a forward voltage drop of 1.8 V at rated current.

Feature Summary

Designed as a standard phase control switch with low gate trigger requirements
Capable of handling high surge currents up to 650 A non-repetitive peak values
Constructed with robust junctions supporting voltages up to 1000 V

Applications

Phase control applications in heating systems
Motor speed control circuits
General purpose AC power switching

Procurement Notes

Verify the specific suffix 'NTP' against official Littelfuse documentation to confirm it corresponds to the TO-220-2 through-hole package variant. Ensure compatibility with existing PCB layouts or chassis mounts designed for this form factor before procurement.

Selection Notes

Select this component when a 55 A RMS current rating and 400 V blocking voltage are required for phase control. Consider the TO-220-2 package for through-hole assembly needs. Verify thermal management requirements given the 125°C maximum operating temperature limit.

Part Context

This part belongs to the Teccor Sxx55x series of standard SCRs. These devices are engineered for reliable unidirectional switching in industrial and consumer electronics. The series offers a balance of high current capacity and sensitive gate triggering for efficient control circuitry.

Replacement Considerations

The S4055RTP is a documented alternative within the same series offering identical electrical ratings but may differ in packaging or tape/reel specifications. Verify pinout and thermal resistance equivalence before substitution.

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.