S2055W81TP

Description：SCR 200V 55A TO218X
Series：-

SKU:c2fff2e54405 Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：SCR 200V 55A TO218X
Series：-
Mfr：Littelfuse Inc.
Package：Tube
Voltage - Off State：200 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：Through Hole
Package / Case：TO-218X-3
Supplier Device Package：TO-218X Non-Isolated Mounting Tab
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

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S2055W81TP

Overview

The S2055W81TP is a Silicon Controlled Rectifier (SCR) manufactured by Littelfuse. It features a rated repetitive off-state voltage of 200 V and an on-state RMS current rating of 55 A. The device has an off-state leakage current of 10 uA at VDRM and a forward voltage drop of 1.8 V. Gate trigger specifications include a voltage of 1.5 V and currents of 5 mA or 40 mA. The holding current maximum is 60 mA, with a breakover current maximum of 650 A. Operating temperatures range from -40 C to +125 C. It utilizes a TO-218 through-hole package with dimensions of 16 mm length and 12.62 mm height maximum.

Feature Summary

Through-hole mounting configuration in a TO-218 package for robust mechanical attachment.

Applications

Procurement Notes

Verify the specific suffix against official Littelfuse documentation to confirm exact electrical tolerances and marking codes. Confirm availability status as distribution data indicates restricted supply conditions. Ensure the component meets required RoHS compliance standards for the intended assembly process before finalizing procurement orders.

Selection Notes

Select this SCR for circuits requiring a 200 V blocking capability and 55 A continuous current handling. Verify that the gate trigger requirements align with the control circuit's output capabilities. Ensure the thermal management design supports operation within the specified -40 C to +125 C temperature range for reliable performance.

Part Context

This component belongs to the Littelfuse SCR product line designed for power switching applications. The S2055 series provides high current capacity in standard through-hole packages suitable for industrial and general-purpose power electronics. It serves as a discrete semiconductor switch for controlling AC loads or DC circuits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Consult Littelfuse engineering resources for direct replacements or verify compatibility with alternative manufacturers offering identical 200V 55A TO-218 SCR specifications.

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.