S4008L

Description：SCR 400V 8A TO220
Series：-

SKU:a2a45feffa5c 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 Isolated Tab
Supplier Device Package：TO-220 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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S4008L

Overview

The S4008L is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse, designed for AC switching and phase control applications. It features a peak repetitive off-state voltage of 400V and an on-state current rating of 8A. The device utilizes a sensing gate structure to facilitate reliable triggering in various power control circuits. It is housed in a TO-220-2 package, providing robust mechanical stability and thermal dissipation capabilities for industrial environments.

Feature Summary

Sensing gate structure for enhanced noise immunity
High surge current capability for circuit protection
Glass-passivated junctions for long-term reliability

Applications

AC motor speed controls
Lighting dimmer circuits
Temperature modulation controls

Procurement Notes

Verify the specific suffix against the official Littelfuse datasheet to ensure correct voltage and current ratings. Confirm RoHS compliance status and packaging type directly with authorized distributors. Request the latest revision of the product specification document prior to finalizing procurement orders.

Selection Notes

Select this component based on its 400V blocking voltage and 8A continuous current requirements. Ensure the application environment supports the thermal characteristics of the TO-220-2 package. Verify that the gate trigger sensitivity aligns with the driving circuit design parameters.

Part Context

This SCR belongs to the Sxx08xSx series from Littelfuse, which focuses on thyristor solutions for general-purpose power control. The series offers standardized performance metrics suitable for replacing older discrete components in established industrial designs requiring reliable AC switching.

Replacement Considerations

Consult the Littelfuse replacement guide for direct equivalents. Verify pinout compatibility and thermal resistance values when substituting with similar SCRs from other manufacturers.

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.