Z0103NA 1AA2

Overview

The Z0103NA 1AA2 is a logic-level sensitive gate triac manufactured by STMicroelectronics, designed for AC switching applications. It features a maximum repetitive peak off-state voltage of 600 V and an RMS on-state current rating of 1 A. The device operates within a junction temperature range of -40°C to +125°C and is housed in a TO-92-3 through-hole package. Key electrical parameters include a maximum gate trigger current of 3 mA, a holding current of 7 mA, and a non-repetitive peak on-state current of 8 A at 50/60 Hz. The component complies with RoHS 3 standards and has a moisture sensitivity level of 1.

Feature Summary

• Logic-level sensitive gate architecture enabling direct interface with standard logic circuits
• Four-quadrant triggering capability for reliable operation across all gate polarities
• Through-hole TO-92-3 packaging suitable for general-purpose PCB mounting

Applications

• Lighting control systems including dimmers and switches
• Small AC motor speed control circuits
• Solid-state relay input stages
• General purpose AC load switching

Procurement Notes

Verify the specific suffix '1AA2' against the manufacturer's official datasheet to confirm pinout configuration and marking codes. Ensure the source document explicitly lists this part number as active or available. Cross-reference the package type TO-92-3 and voltage ratings with your design requirements before ordering.

Selection Notes

Select this component when a low-cost, single-phase AC switch is required for currents up to 1 A. The logic gate feature simplifies driver circuit design by reducing the necessary gate drive current. Verify that the 600 V blocking voltage meets the peak line voltage plus transient margins of the target application.

Part Context

This device belongs to the Z01 series of triacs from STMicroelectronics. The series is characterized by its sensitive gate technology, which allows for efficient control using low-power logic outputs. The Z0103 variant specifically denotes the 1 A current rating within this family, distinguishing it from higher current models like the Z0105 or lower current variants.

Replacement Considerations

Direct replacements may include other 1 A logic gate triacs in TO-92 packages such as the BT136 series if pinouts are compatible, or equivalent parts from manufacturers like NXP or Littelfuse. Always verify gate trigger characteristics and thermal resistance values before substitution.