BT169G,112

Scrs Overview

The BT169G,112 is a Silicon Controlled Rectifier (SCR) manufactured by WeEn Semiconductors. It features a planar passivated sensitive gate design housed in a SOT-54 (TO-92) plastic package for through-hole mounting. Key electrical specifications include a rated repetitive off-state voltage of 600 V and an RMS on-state current of 800 mA. The device supports a maximum junction temperature of +125 C and exhibits a holding current of up to 2 mA.

Scrs Feature Summary

• Planar passivated construction ensures voltage ruggedness and long-term reliability
• Sensitive gate architecture enables low power triggering requirements
• High voltage capability suitable for demanding circuit protection applications

Scrs Applications

• Earth leakage circuit breakers or Ground Fault Circuit Interrupters (GFCI)
• Ignition circuits
• Low power latching circuits
• Protection circuits for lighting ballasts
• Protection circuits for Switched Mode Power Supplies

Scrs Procurement Notes

Verify the specific manufacturer designation when sourcing, as this component originates from NXP Semiconductor technology transferred to WeEn Semiconductors. Confirm that the SOT-54 package variant matches the required footprint for your PCB layout. Ensure compliance with RoHS directives if environmental regulations apply to your assembly process. Cross-reference datasheets to confirm parameter consistency across different production batches.

Scrs Selection Notes

Select this component for applications requiring high voltage blocking capabilities combined with low gate drive sensitivity. The TO-92 package is appropriate for through-hole assembly processes where space constraints are less critical than surface-mount alternatives. Consider the 800 mA RMS current rating against peak load demands to ensure adequate thermal management without excessive heatsinking.

Scrs Part Context

This SCR belongs to the BT169 series, which includes variants like the BT169H offering higher voltage ratings. The technology was originally developed by NXP Semiconductor before being transferred to WeEn Semiconductors. The BT169G specifically targets general-purpose switching and protection roles within industrial and consumer electronics sectors.

Scrs Replacement Considerations

The BT169H serves as a related variant within the same family, offering an 800 V rating instead of 600 V. Verify pinout compatibility and thermal characteristics when substituting between these closely related part numbers.