Littelfuse SJ SCR Switching Thyristors
Littelfuse SJ Series SCR Switching Thyristors offer designers a wider operating margin than earlier SCRs, making it possible to tolerate insufficient cooling and higher inrush currents at startup. This Littelfuse SCR thyristor series provides a wider operating margin in existing designs and allows smaller heat sinks in new designs. The SJ Series features a robust clip-attach package design that withstands high surges in a choice of five package types. Littelfuse SJ series offers a high junction temperature (TJ) of +150°C, blocking voltage (VDRM) up to 600V, and current ratings from 4A up to 40A. These thyristors offer a gate trigger current (IGT) of 0.2mA in sensitive gate SCR and between 6mA and 40mA in standard gate SCR.
Features
- High junction temperature (TJ) of +150°C
- Wide package selection: TO-252, TO-251, TO-263, TO-220AB, and internally isolated TO-220 Iso
- High surge capability of clip-attach package design
- Up to 600V blocking voltage
- 4A up to 40A current rating
- High di/dt capability
- Wider operating margin in existing designs, smaller heat sinks in new designs
- Simplifies selecting the best package for the application
- Tolerates high inrush current and harsh operating conditions
- Enables higher voltage output in capacitor discharge applications
Applications
- Converters / rectifiers
- Capacitive discharge ignition (CDI) systems
- Inrush current limiting
- Motor speed controls
- Motorcycles
- ATVs
- Small gasoline engines
- Gasoline/gas-electric generators
- Furnaces
- LED lighting
Application Circuit Diagrams
Videos
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Published: 2018-04-09
| Updated: 2023-02-14