S4S2RP

$1.55

Description：SCR 400V 800MA COMPAK
Series：-

SKU:a569a03aee20 Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 400V 800MA COMPAK
Series：-
Mfr：Littelfuse Inc.
Package：Tape & Reel (TR),Cut Tape (CT)
Voltage - Off State：400 V
Voltage - Gate Trigger (Vgt) (Max)：800 mV
Current - Gate Trigger (Igt) (Max)：50 µA
Current - Hold (Ih) (Max)：5 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：16A, 20A
SCR Type：Sensitive Gate
Operating Temperature：-40°C ~ 110°C
Mounting Type：Surface Mount
Package / Case：DO-214AA, SMB (3 Leads), Compak
Supplier Device Package：Compak
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)：1 µA

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S4S2RP

Overview

The Littelfuse S4S2RP is a silicon-controlled rectifier (SCR) from the SxSx series, packaged in a DO-214AB-2 (SMB) surface-mount format. It features a rated repetitive off-state voltage (VDRM) of 400 V and an RMS on-state current (It RMS) of 800 mA. The device has a maximum gate trigger current (Igt) of 50 uA and a gate trigger voltage (Vgt) of 800 mV. Key electrical parameters include a forward voltage (Vf) of 1.7 V, a holding current (Ih) maximum of 5 mA, and a non-repetitive peak on-state current of 20 A. Leakage current at VDRM is 1 uA. It operates within a temperature range of -40 C to +110 C.

Feature Summary

Surface-mount construction for automated PCB assembly
Sensitive gate triggering capability for low-power control applications
High thermal stability with extended operating temperature range

Applications

AC power switching circuits
Lighting control systems
Motor speed control interfaces

Procurement Notes

Verify the specific Littelfuse datasheet for the S4S2RP to confirm RoHS compliance status and REACH SVHC declarations before integration. Ensure the DO-214AB-2 package footprint matches the design layout. Confirm that the 800 mA RMS current rating meets the thermal requirements of the target application under expected ambient conditions.

Selection Notes

Select this component when a compact SCR with sensitive gate drive is required for moderate current loads up to 800 mA. The 400 V blocking voltage suits general-purpose AC applications. Compare the 50 uA gate trigger current against other SMB-packaged SCRs if low-power microcontroller interfacing is critical. Verify that the 1.7 V forward voltage drop aligns with efficiency targets.

Part Context

The S4S2RP belongs to Littelfuse's SxSx series of thyristors, designed for surface-mount technology. This series provides robust overcurrent protection and switching capabilities in small form factors. The DO-214AB-2 package allows for high-density PCB layouts while maintaining reliable thermal dissipation for medium-current applications.

Replacement Considerations

Check Littelfuse documentation for direct pin-compatible replacements within the SxSx series. Verify that any substitute SCR maintains the 400 V VDRM and 800 mA It RMS ratings. Ensure the gate sensitivity and package type match the existing board design.

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.