Z0405NF 1AA2

Overview

The Z0405NF 1AA2 is a unidirectional thyristor (SCR) manufactured by STMicroelectronics. It features a maximum repetitive off-state voltage of 600 V and an average on-state current rating of 900 mA. The device has a maximum RMS on-state current of 1.35 A. Key gate parameters include a trigger voltage of 800 mV and a trigger current of 50 uA. This component is housed in a through-hole package suitable for industrial and consumer applications requiring reliable switching.

Feature Summary

• Unidirectional SCR design for controlled rectification
• High voltage blocking capability up to 600 V
• Low gate trigger current for efficient drive circuits

Applications

• Lighting control systems
• Motor speed controllers
• Heating element regulation

Procurement Notes

Verify the specific suffix '1AA2' against the manufacturer's official datasheet to confirm pinout and packaging details. Ensure the component meets RoHS compliance requirements if specified for the target application. Cross-reference the part number with authorized distributors to avoid counterfeit components.

Selection Notes

Select this component when a low-current, high-voltage SCR is required. Compare the 900 mA average current rating against the load requirements. Consider the 600 V voltage rating for safety margins in AC line applications. Evaluate thermal management needs based on the 1.35 A RMS current limit.

Part Context

This part belongs to the X0405MF series of SCRs from STMicroelectronics. It shares similar electrical characteristics with other members of the family but may differ in packaging or specific testing criteria. It is designed for general-purpose switching applications in power electronics.

Replacement Considerations

Potential substitutes include the X0402MF 0AA2 and X0403MF 1AA2. Verify that the substitute parts match the 600 V voltage rating and current handling capabilities before implementation.