S8M02600B

Overview

The S8M02600B is a sensitive gate Silicon Controlled Rectifier (SCR) manufactured by Diodes Incorporated. It features a maximum repetitive off-state voltage of 600 Volts and an on-state RMS current rating of 8 Amperes at a case temperature of 80°C. The device utilizes a rugged TO-220AB package with glass passivated junctions for reliability. Key electrical characteristics include a peak non-repetitive surge current capability of 80 Amperes, a forward peak on-state voltage of 1.8 Volts, and a minimum dv/dt immunity of 5 V/µsec at 110°C. The operating junction temperature range spans from -40°C to +110°C.

Feature Summary

• Sensitive gate design with specified minimum and maximum values for gate trigger current (IGT), gate trigger voltage (VGT), and holding current (IH) to facilitate circuit design.
• High surge current capability rated at 80 Amperes for handling transient loads.
• Robust thermal performance with a low thermal resistance junction-to-case value of 2.2 °C/W.
• Immunity to false triggering with a minimum critical rate of rise of off-state voltage (dv/dt) of 5 V/µsec.

Applications

• General purpose AC power control circuits
• Lighting dimmer applications
• Motor speed control systems

Procurement Notes

Verify the manufacturer designation carefully, as the datasheet identifies Lite-On Semiconductor Corporation (LSC) as the producer while distributor listings may reference Diodes Incorporated. Confirm the specific suffix 'B' corresponds to the TO-220AB package and Pb-free compliance. Ensure the component meets RoHS3 directives if required for your assembly process. Cross-reference the part number against the latest LSC documentation to confirm availability and revision status before finalizing procurement orders.

Selection Notes

Select this SCR for applications requiring high blocking voltage up to 600V and moderate continuous current handling of 8A RMS. The sensitive gate characteristic allows for lower drive power requirements compared to standard gates. Consider the thermal resistance when designing heat sinks, as the junction-to-case resistance is 2.2 °C/W. Ensure the circuit can handle the 80A surge current without damaging the device during turn-on or fault conditions.

Part Context

The S8M02600B belongs to the S8M02-B series of silicon controlled rectifiers. This series is designed for general-purpose thyristor applications requiring reliable switching in power electronics. The device is housed in a TO-220AB plastic package, which provides mechanical stability and efficient heat dissipation capabilities suitable for through-hole mounting on printed circuit boards.

Replacement Considerations

Direct replacements must match the 600V voltage rating, 8A RMS current capacity, and TO-220AB package form factor. Verify that substitute SCRs possess compatible gate trigger specifications (IGT/VGT) and holding currents to ensure proper circuit operation without modification.