X0203MA 2BL2

Scrs Overview

The X0203MA 2BL2 is a silicon controlled rectifier (SCR) manufactured by STMicroelectronics, designed for sensitive gate triggering applications. It features a maximum repetitive peak off-state voltage of 600 V and an on-state current rating of 1.25 A. The device is housed in a TO-92-3 (TO-226AA) through-hole package with formed leads. It operates within a junction temperature range of -40°C to 125°C. The component utilizes a three-terminal structure typical of SCRs, allowing it to function as a bistable switch in electronic circuits where limited gate current is available.

Scrs Feature Summary

• Sensitive gate design suitable for applications with limited gate current availability
• Through-hole mounting configuration for reliable mechanical connection
• High thermal stability supporting operation up to 125°C junction temperature

Scrs Applications

• Lighting control systems requiring low-power triggering
• Motor speed control circuits with restricted drive capability
• General-purpose switching applications in consumer electronics

Scrs Procurement Notes

Verify the specific ordering suffix matches the required packaging format, as variations such as tape and box configurations exist within the product line. Confirm that the TO-92-3 package dimensions align with the target PCB layout constraints. Ensure the selected variant meets the necessary voltage and current ratings for the intended circuit application before finalizing procurement orders.

Scrs Selection Notes

Select this component when the application demands a robust SCR solution capable of handling 600 V blocking voltage and 1.25 A conduction current. The sensitive gate characteristic makes it ideal for scenarios where the driving circuit cannot supply high gate currents. Consider the through-hole package type if surface-mount alternatives are not feasible or if higher mechanical strength is required for the assembly process.

Scrs Part Context

This part belongs to the X02 SCR series from STMicroelectronics, which focuses on devices optimized for sensitive gate triggering. The series is engineered to provide reliable performance in discrete semiconductor applications where efficient switching is critical. The X0203MA variant specifically addresses needs for moderate current handling within a compact through-hole form factor, distinguishing it from higher-power or surface-mount options in the broader portfolio.

Scrs Replacement Considerations

Direct substitutes may include other 600 V, 1.25 A SCRs in TO-92 packages from different manufacturers, provided they match the sensitive gate trigger characteristics. Verify electrical parameters and pinout compatibility before substitution. Generic replacements must maintain equivalent voltage and current ratings to ensure circuit integrity without modification.