SD1A130A-13

Overview

The SD1A130A-13 is a Silicon Controlled Rectifier (SCR) manufactured by Diodes Incorporated, designed for surface-mount applications. It utilizes the SMA (DO-214AC) package and operates within a junction temperature range of -40°C to 125°C. This component functions as a bidirectional trigger device, commonly referred to as a DIAC or SIDAC, intended for triggering triacs in AC power control circuits. The device provides reliable gate triggering for phase control applications requiring precise voltage thresholds.

Feature Summary

• Bidirectional trigger diode functionality for symmetrical AC signal processing
• Surface-mount construction utilizing the compact SMA (DO-214AC) package
• Designed for high-temperature operation with a junction rating up to 125°C
• Integrated silicon structure for robust triac gate triggering

Applications

• Triac gate triggering in AC light dimmer circuits
• Phase control modules for motor speed regulation
• Thermostat and heating control circuit protection
• Solid-state relay input stage activation

Procurement Notes

Verify the specific datasheet version for the SD1A130A-13 to confirm exact breakdown voltage tolerances and current ratings, as these parameters define the triggering threshold. Ensure the selected component matches the required SMA footprint and thermal characteristics for the target PCB layout. Cross-reference the manufacturer's official documentation to validate compliance with RoHS and REACH standards before integration into final assemblies.

Selection Notes

Select this component when a bidirectional trigger device is required for low-power triac gating in AC environments. The SMA package offers space efficiency compared to axial leads. Consider the operating temperature range and peak current capabilities relative to the load requirements. Verify that the triggering voltage aligns with the specific triac sensitivity used in the design to ensure consistent switching performance.

Part Context

This part belongs to the family of bidirectional trigger diodes produced by Diodes Incorporated. It serves as a specialized semiconductor switch for controlling thyristor-based power electronics. The device complements standard rectifiers and TVS diodes in power management portfolios by providing dedicated triggering functionality for AC phase control systems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official substitution guide for equivalent SMA-packaged bidirectional trigger devices.