SJ4020LTP

$1.22

Description：HIGH TJ 400V 20A SCR TO220L
Series：SJ

SKU:8151172aae55 Category: SCRs Brand: Littelfuse Inc.

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Product introduction

Product Detailed Parameters

Description：HIGH TJ 400V 20A SCR TO220L
Series：SJ
Mfr：Littelfuse Inc.
Package：Tube
Voltage - Off State：600 V
Voltage - Gate Trigger (Vgt) (Max)：1.5 V
Current - Gate Trigger (Igt) (Max)：35 mA
Current - Hold (Ih) (Max)：15 mA
Current - Non Rep. Surge 50, 60Hz (Itsm)：225A, 300A
SCR Type：Standard Recovery
Operating Temperature：-40°C ~ 150°C (TJ)
Grade：-
Qualification：-
Mounting Type：Through Hole
Package / Case：TO-220-3 Full Pack, Isolated Tab
Supplier Device Package：ITO-220AB
Voltage - On State (Vtm) (Max)：1.6 V
Current - On State (It (AV)) (Max)：12.8 A
Current - On State (It (RMS)) (Max)：20 A
Current - Off State (Max)：10 µA

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SJ4020LTP

Overview

The Littelfuse SJ4020LTP is a Silicon Controlled Rectifier (SCR) belonging to the SJxx20xx series, designed for high-temperature environments. It features a rated repetitive off-state voltage (VDRM) of 400 V and an on-state RMS current (It RMS) of 20 A. The device exhibits a forward voltage drop (Vf) of 1.6 V, with a gate trigger voltage (Vgt) of 1.5 V and a gate trigger current (Igt) of 30 mA. Maximum holding current (Ih) is specified at 75 mA, while non-repetitive peak on-state current reaches 225 A. Operating temperature ranges from -40°C to +150°C. It utilizes a TO-220-2 through-hole package.

Feature Summary

High-temperature operation capability up to 150°C
Glass-passivated junctions for parameter stability
Through-hole mounting in a TO-220-2 package

Applications

AC switching applications
Phase control circuits
Temperature modulation controls

Procurement Notes

Verify the specific part number suffix against official Littelfuse documentation to confirm exact electrical characteristics, as variations exist within the SJ4020 family. Confirm RoHS compliance status and REACH SVHC details directly from the manufacturer's datasheet before procurement. Ensure the ordering suffix matches the required gate trigger current specifications for the intended circuit design.

Selection Notes

Select this component when a 400V, 20A SCR is required for high-temperature environments. Compare gate trigger current requirements against similar models like the SJ4020L1TP or SJ4020RATP to ensure compatibility with the driving circuit. Verify that the TO-220-2 package fits the thermal and mechanical constraints of the target application.

Part Context

This device is part of the Littelfuse SJxx20xx series of thyristors. The series includes variants such as SJ4020L1TP and SJ4020RATP, which share similar voltage and current ratings but differ in gate trigger parameters and automotive qualification status. The SJ4020LTP is specifically categorized under general-purpose SCRs within this lineup.

Replacement Considerations

Potential substitutes include SJ4020L1TP and SJ4020RATP from the same manufacturer. Verify that the gate trigger current and holding current specifications of the substitute are compatible with the existing drive circuitry before replacement.

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

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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.