Z0103MA 5AL2

Overview

The Z0103MA 5AL2 is a logic-level sensitive gate TRIAC manufactured by STMicroelectronics, designed for AC switching applications. It features a peak repetitive 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 characteristics include a maximum gate trigger current of 3 mA and a holding current of 7 mA. It supports non-repetitive surge currents of 8 A at 50 Hz and 8.5 A at 60 Hz, with a maximum gate trigger voltage of 1.3 V.

Feature Summary

• Logic-sensitive gate architecture enabling direct interface with standard logic outputs
• High thermal stability supporting operation up to 125°C junction temperature
• Robust construction with high surge current capability for reliable AC control

Applications

• Universal motor speed control circuits
• Lighting dimmer switches
• Solid-state relays
• Heating element regulation

Procurement Notes

Verify the specific ordering suffix '5AL2' against the manufacturer's latest datasheet to confirm packaging type and compliance status. Ensure the procurement channel provides traceable documentation for RoHS3 and REACH compliance. Cross-reference the DigiKey part number 497-4682-2-ND for accurate stock availability and reel specifications before finalizing orders.

Selection Notes

Select this component when a low-power TRIAC with logic-compatible gate drive is required for single-phase AC loads. The 600 V rating suits general-purpose mains applications, while the 1 A current limit defines the maximum load capacity. Consider the TO-92-3 package constraints for PCB layout and thermal dissipation requirements compared to higher-current surface-mount alternatives.

Part Context

This device belongs to the Z01 series of TRIACs from STMicroelectronics, which are widely used in consumer electronics for basic AC power control. The Z0103 variant specifically targets low-current applications where cost-effective, through-hole mounting is preferred over surface-mount technologies. It serves as a fundamental building block for simple phase-control circuits.

Replacement Considerations

Direct pin-to-pin replacements within the same package and electrical class should be verified against the official Z01 series cross-reference list. Ensure any substitute maintains the 600 V blocking voltage and 1 A RMS current ratings. Confirm that the replacement also supports logic gate sensitivity to avoid redesigning the driving circuitry.