SD1A150E

Scrs Overview

The SD1A150E is a silicon unidirectional thyristor (SIDAC) manufactured by Diodes Incorporated, housed in a compact DO-41 molded plastic package. It supports an on-state RMS current of 1 A and a peak repetitive off-state voltage of 120 V. The device features a breakover voltage range of 142 to 157 Vdc at a breakover current of 5 uA. Operating junction temperature ranges from -40°C to +125°C, with a storage temperature range up to +150°C. Key electrical characteristics include a holding current under 60 mA and a typical thermal resistance of 15 °C/W.

Scrs Feature Summary

• Compact DO-41 package design for space-saving applications
• Silicon unidirectional thyristor structure for gas igniter circuits
• Lead-free plating terminals compliant with RoHS 2011/65/EU standards

Scrs Applications

• Gas igniters

Scrs Procurement Notes

Verify the component manufacturer and datasheet revision before procurement. Confirm that the specific ordering suffix matches the required electrical tolerances. Ensure the supplier provides traceability documentation consistent with the original manufacturer's specifications. Check for any recent product change notices or obsolescence announcements prior to finalizing orders.

Scrs Selection Notes

Select this component when a low-cost, high-reliability SIDAC is required for ignition circuits. The DO-41 package suits through-hole mounting where space constraints are moderate. Evaluate the 142V to 157V breakover voltage window against the specific trigger requirements of the load. Consider the 1 A RMS current rating for continuous operation limits within the circuit design.

Scrs Part Context

This part belongs to the SD1A series of silicon unidirectional thyristors produced by Diodes Incorporated. The series is designed primarily for triggering applications requiring precise voltage thresholds. The SD1A150E specifically targets the 150V nominal breakover class within this family, offering standardized performance for industrial and consumer electronics ignition systems.

Scrs Replacement Considerations

Direct substitutes must match the DO-41 package, 150V nominal breakover voltage, and 1A current rating. Verify compatibility with existing PCB footprints and thermal management requirements. Cross-reference datasheets for identical holding current and leakage specifications to ensure circuit stability during replacement.