S4008R

Description：SCR 400V 8A TO220
Series：-

SKU:52d69350028b Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 400V 8A TO220
Series：-
Mfr：Littelfuse Inc.
Package：Bulk
Voltage - Off State：400 V
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：15 mA
Current - Hold (Ih) (Max)：30 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：83A, 100A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-220-3
Supplier Device Package：TO-220 Non-Isolated Tab
Voltage - On State (Vtm) (Max)：1.6 V
Current - On State (It (AV)) (Max)：5.1 A
Current - On State (It (RMS)) (Max)：8:00 AM
Current - Off State (Max)：10 µA

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S4008R

Overview

The Littelfuse S4008R is a silicon-controlled rectifier (SCR) from the Sxx08xS series, designed for power control applications. It features an 8 A RMS on-state current and a 400 V repetitive peak off-state voltage. The device operates with a gate trigger current of 500 uA and a holding current maximum of 8 mA. Packaged in a DPAK-2 (TO-252-2) surface-mount configuration, it supports an operating temperature range from -40°C to +110°C. Key electrical parameters include a forward voltage of 1.6 V and a non-repetitive peak on-state current of 100 A.

Feature Summary

Surface-mount construction for automated PCB assembly
Low gate trigger current for efficient drive circuits
High thermal performance in compact package

Applications

General purpose AC/DC power control
Lighting dimming circuits
Motor speed control systems

Procurement Notes

Verify the specific suffix against the official datasheet to confirm exact electrical tolerances and packaging specifications. Ensure the component meets RoHS compliance requirements for the target market. Confirm lead-free soldering profile compatibility during the procurement phase to maintain reliability standards.

Selection Notes

Select this SCR based on the required 400 V blocking voltage and 8 A continuous current capacity. Evaluate the gate sensitivity requirements, noting the 500 uA trigger current. Consider the DPAK-2 package for thermal management needs and ensure the operating temperature range aligns with the system environment.

Part Context

This component belongs to the Sxx08xS series of SCRs, which are standardized for general-purpose power switching. The series offers consistent performance characteristics across different voltage ratings within the same current class, facilitating design scalability.

Replacement Considerations

Consult the manufacturer's cross-reference guide for verified substitutes. Ensure any replacement matches the 8 A current rating, 400 V voltage rating, and TO-252-2 package footprint.

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.