Z0109MA 5AL2

Overview

The Z0109MA 5AL2 is a logic-level sensitive gate TRIAC manufactured by STMicroelectronics, designed for surface-mount applications in the SOT-223 package. It features a rated repetitive off-state voltage of 600 V and an RMS on-state current capacity of 1 A. The device requires a maximum gate trigger current of 10 mA and a gate trigger voltage of 1.3 V to activate. It operates within a junction temperature range of -40°C to +125°C. The component is classified as a single-phase triac with a holding current maximum of 10 mA, suitable for AC switching tasks requiring low-power gate drive capabilities.

Feature Summary

• Logic-sensitive gate architecture enables direct interfacing with microcontrollers and digital logic circuits without additional amplification stages.
• Surface-mount SOT-223 packaging facilitates automated assembly and compact PCB layout design.
• High thermal stability supports reliable operation across extended industrial temperature ranges.

Applications

• Solid-state relays for residential and commercial loads
• Lighting control systems including dimmers and smart switches
• Motor speed control circuits for small appliances

Procurement Notes

Verify the specific suffix 5AL2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering quantity matches the required tape-and-reel specifications for surface-mount production lines. Cross-reference the DigiKey part number 497-6812-2-ND or equivalent distributor codes to validate supply chain authenticity and traceability before finalizing procurement orders.

Selection Notes

Select this component when a 600 V blocking voltage and 1 A continuous current rating are sufficient for the load requirements. The logic-sensitive gate characteristic makes it appropriate for designs driven by low-current digital outputs. Consider the SOT-223 thermal dissipation limits if operating near the maximum current threshold in enclosed environments.

Part Context

This device belongs to the Z01 series of TRIACs from STMicroelectronics, which offers various voltage and current ratings in multiple packages. The Z0109 variant specifically targets 600 V / 1 A applications. The MA suffix typically denotes the SOT-223 surface-mount package configuration, distinguishing it from through-hole alternatives like the TO-92 or SMBflat variants within the same electrical family.

Replacement Considerations

Direct replacements include other Z0109 variants in different packages such as Z0109MUF (SMBflat) or Z0109MN (SOT-223). Verify that substitute parts maintain identical gate trigger characteristics and voltage ratings to ensure circuit compatibility without redesign.