TMA166P-L

Overview

The TMA166P-L is a Triac (Bidirectional Triode Thyristor) from the TMA16xP series manufactured by Sanken Electric USA Inc. It features a peak repetitive off-state voltage of 600 V and an RMS on-state current rating of 16 A at a case temperature of 108°C. The device supports a peak non-repetitive off-state voltage of 700 V and a surge on-state current of 180 A at 50 Hz. It operates within a junction temperature range of -40 to 125°C and utilizes a TO-3P package with an exposed heatsink pad for thermal management.

Feature Summary

• Small fully-molded SIP package designed for high thermal dissipation and long life
• Provides greater peak nonrepetitive off-state voltage compared to other market products
• Improved commutation dv/dt and (dv/dt)c characteristics for uniform switching

Applications

• Residential and commercial appliances including vacuum cleaners, rice cookers, TVs, and home entertainment systems
• White goods such as washing machines
• Office automation power control and photocopiers
• Motor control for small tools
• Temperature control, light dimmers, electric blankets, and general use switching mode power supplies

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and lead times prior to ordering. Ensure storage conditions remain within standard temperature and humidity ranges to prevent solderability issues. Inspect leads for rust if stored for extended periods before integration into circuit designs.

Selection Notes

Select this component for AC power control applications requiring reliable full-cycle switching. Consider the 600 V off-state voltage rating for appropriate line voltage compatibility. Evaluate thermal requirements against the 16 A RMS current capability at specified case temperatures. Ensure gate drive circuits align with the maximum gate trigger current specifications for reliable triggering across all quadrants.

Part Context

The TMA166P-L belongs to the TMA16xP series of Triacs produced by Sanken Electric. This series is distributed by Allegro MicroSystems in certain regions. The datasheet explicitly marks this product as 'Not Recommended for New Designs,' indicating it may be superseded by newer generations or discontinued for future development projects.

Replacement Considerations

Check for updated Sanken Triac models offering similar electrical ratings but marked for new design inclusion. Verify pinout compatibility with existing TO-3P footprints. Ensure replacement devices maintain equivalent thermal resistance and gate trigger characteristics for seamless circuit integration.