TMA164S-L

Overview

The TMA164S-L is a Triac (Bidirectional Triode Thyristor) from the TMA16xS Series manufactured by Sanken Electric USA Inc. It features a Peak Repetitive Off-State Voltage (VDRM) of 400 V and a Peak Non-Repetitive Off-State Voltage (VDSM) of 500 V. The device supports an RMS On-State Current (IT(RMS)) of 16 A at a case temperature of 66°C, with a Surge On-State Current (ITSM) of 160 A for 50 Hz full cycle sine waves. It utilizes a 3-pin SIP (TO-220F) package with a junction-to-case thermal resistance of 3.3 °C/W. The isolation voltage between lead and case is 1800 V AC RMS applied for 1 minute.

Feature Summary

• Small fully-molded SIP package designed for heatsink mounting to ensure high thermal dissipation and long life
• Provides increased isolation voltage of 1800 V AC RMS guaranteed for up to 1 minute
• Features improved commutation dv/dt and (dv/dt)c characteristics compared to other market products
• Designed for reliable, uniform switching in full-cycle AC power control applications

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 official manufacturer channels or authorized distributors. Confirm that the specific part number matches the required electrical ratings, particularly the 400 V off-state voltage. Ensure handling procedures adhere to electrostatic discharge precautions during storage and installation to maintain device integrity.

Selection Notes

Select this component for AC power control circuits requiring 16 A continuous current capability. Verify that the application operates within the specified junction temperature range of -40°C to 125°C. Ensure adequate heatsinking is provided to maintain the case temperature at or below 66°C for rated current operation. Consider the 1800 V isolation voltage for safety-critical designs.

Part Context

The TMA164S-L belongs to the TMA16xS series of Triacs produced by Sanken Electric USA Inc. This series is characterized by robust construction and enhanced isolation capabilities. The 'S' suffix indicates the specific packaging type, while the 'L' denotes the lead configuration variant within the SIP form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult manufacturer resources for equivalent components if replacement is necessary.

FAQ

What is the maximum surge on-state current for the TMA164S-L?

The peak non-repetitive surge on-state current (ITSM) is 160 A for a 50 Hz full cycle sine wave with an initial junction temperature of 125°C.

How is the gate terminal defined in the pinout?

Pin 3 is designated as the Gate (G) control terminal. Pin 1 is the Main Terminal 1 (T1), referenced to the gate, and Pin 2 is the Main Terminal 2 (T2).

What is the critical rising rate of off-state voltage during commutation?

The critical commutation dv/dt ((dv/dt)c) is specified as 10 V/μs at a junction temperature of 125°C, with VD = 400 V, (di/dt)c = –8 A/ms, and ITP = 2 A.