BT169G-L,412

Scrs Overview

The BT169G-L,412 is a planar passivated very sensitive gate Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It is housed in a SOT54 (TO-92) plastic package and qualified for industrial applications. Key electrical parameters include a repetitive peak reverse voltage of 600 V, an average on-state current of 0.5 A, and an RMS on-state current of 0.8 A. The device supports a surge current of 8 A with a maximum gate trigger current of 50 mA. It features a dV/dt rating of 100 V/µs and a maximum junction temperature of 125°C.

Scrs Feature Summary

• Planar passivated construction for enhanced reliability
• Very sensitive gate design for low power triggering
• Industrial qualification for robust performance

Scrs Applications

• Lighting control circuits
• Motor speed control systems
• Heater control applications

Scrs Procurement Notes

Verify the specific ordering suffix to confirm packaging format. The BT169G-L,412 designation corresponds to bulk pack straight leads in TO-92 packages. Confirm RoHS compliance and lead-free status through official datasheets or chemical content reports provided by the manufacturer before finalizing procurement specifications.

Scrs Selection Notes

Select this component when a high-voltage SCR with low gate drive requirements is needed in a compact through-hole package. Ensure the circuit design accommodates the 600 V blocking capability and 0.5 A continuous current limit. Verify that the thermal management strategy supports the 125°C maximum junction temperature rating under expected operating conditions.

Scrs Part Context

This part belongs to the BT169 series of silicon controlled rectifiers from WeEn Semiconductors. The series is characterized by its sensitivity and robustness in standard plastic packages. The BT169G-L variant specifically denotes the planar passivated version optimized for industrial environments, distinguishing it from non-passivated or different gate sensitivity variants within the broader product family.

Scrs Replacement Considerations

Cross-reference with other BT169 series parts such as BT169G or BT169D if pinout compatibility is required. Verify that substitute components match the 600 V voltage rating and TO-92 package dimensions. Check gate trigger current specifications to ensure equivalent sensitivity in the target application.