X0202MA 1BA2

Scrs Overview

The X0202MA1BA2 is a logic-level silicon-controlled rectifier (SCR) from STMicroelectronics, housed in a TO-92 through-hole package. It features an on-state RMS current of 1.25 A and a repetitive peak off-state voltage of 600 V. The device supports a surge current rating of 25 A with a maximum gate trigger current of 200 µA and a gate trigger voltage of 0.8 V. Operating temperatures range from -40°C to +125°C, with a maximum holding current of 5 mA and a repetitive peak off-state current of 500 µA.

Scrs Feature Summary

• Logic-level triggering capability optimized for applications with limited gate drive current availability
• Optimized forward voltage drop and inrush current handling for reduced power losses
• Designed for high reliability in harsh operating environments

Scrs Applications

• On/off switching functions in low-current topology circuits
• AC switch applications requiring high reliability
• Harsh environment electronic systems

Scrs Procurement Notes

Verify the specific suffix '1BA2' against official STMicroelectronics documentation to confirm exact electrical tolerances and marking codes. Ensure the TO-92 package variant matches the required thermal and mechanical constraints. Cross-reference the 600 V rating with the available 800 V option if higher blocking voltage is needed. Confirm lead-free compliance status via the manufacturer's datasheet before finalizing procurement specifications.

Scrs Selection Notes

Select this component when the application requires SCR switching but cannot provide high gate currents. The logic-level design allows direct interfacing with low-power control signals. Consider the 600 V rating relative to line voltages. Evaluate thermal management needs given the 1.25 A RMS limit and TO-92 package thermal resistance. Compare against the 800 V variant if system transients exceed 600 V.

Scrs Part Context

This part belongs to the X02 series of 1.25 A logic-level SCRs. The series is characterized by optimized forward voltage drop and robust inrush current capabilities. It serves as a solution for AC switching where traditional SCRs require excessive gate drive power. The family includes variants with different voltage ratings to suit various blocking voltage requirements.

Scrs Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with existing circuit designs before considering alternative manufacturers or pin-compatible devices.