S4X8ES1

$0.18

Description：SCR 400V 800MA TO92
Series：-

SKU:f2a8777a14cd Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 400V 800MA TO92
Series：-
Mfr：Littelfuse Inc.
Package：Bulk
Voltage - Off State：400 V
Voltage - Gate Trigger (Vgt) (Max)：800 mV
Current - Gate Trigger (Igt) (Max)：5 µA
Current - Hold (Ih) (Max)：5 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：8A, 10A
SCR Type：Sensitive Gate
Operating Temperature：-40°C ~ 125°C
Mounting Type：Through Hole
Package / Case：TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package：TO-92
Voltage - On State (Vtm) (Max)：1.7 V
Current - On State (It (AV)) (Max)：510 mA
Current - On State (It (RMS)) (Max)：800 mA
Current - Off State (Max)：3 µA

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S4X8ES1

Overview

The S4X8ES1 is a sensitive gate silicon-controlled rectifier (SCR) manufactured by Littelfuse Inc. It is designed for use as a voltage-breakdown trigger device in AC dimming circuits, particularly for LED lighting applications. The component features a low holding current characteristic, enabling reliable operation with low-power loads such as LEDs where standard triacs may fail to maintain conduction. It is typically utilized in pairs connected in inverse parallel to form a complete break-trigger circuit, facilitating wide-range light output control from near-zero to full brightness.

Feature Summary

Functions as a voltage-breakdown trigger device within AC dimming control circuits
Enables low-hysteresis control when paired in inverse-parallel configurations
Designed specifically for compatibility with low-current LED lighting loads

Applications

AC dimming circuits for residential and commercial LED lighting
Trigger devices for triac-based light dimmers
Control circuits for embedded ceiling LED fixtures

Part Context

The S4X8ES1 belongs to the family of sensitive gate SCRs intended for power control and triggering applications. Unlike main power switching devices, this component serves a specific role in the gate drive or triggering stage of larger power semiconductors, ensuring stable ignition and conduction under varying load conditions typical in modern solid-state lighting systems.

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

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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.