AC Thyristor Triacs (ACTTs) are a new technology providing the ultimate in over-voltage withstand capability and noise immunity for White Goods and other major appliances. They are intended for highly inductive as well as resistive loads.
Thyristors
AC power switch with over-voltage protection
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Key features and benefits
- Full cycle AC conduction
- Triggering in three quadrants only
- Pin compatible with standard triacs
- Safe clamping of low energy over-voltage transients
- Protective self turn-on with high energy voltage transients
- Clamping structure ensures safe over-voltage withstand capability to IEC 61000-4-5
- Sensitive gate for easy logic level triggering
- Direct interfacing with low power drivers and microcontrollers
- Very high immunity to false turn-on by dV/dt
- Planar passivated for voltage ruggedness and reliability
- Superior reliability and product quality
Key applications
- AC fan, pump and compressor controls
- Highly inductive, resistive and safety loads
- Large and small appliances (White Goods)
- Reversing induction motor controls
- Window blind controllers
Related links
Selection guide
- NXP Discrete Semiconductors Selection Guide 2012 (pdf) (v.2.0, 2012-02-28)
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Descriptive summary
AC Thyristor Triacs (ACTTs) are full cycle AC conduction power switches with gate triggering in three quadrants only and with self-protection against low and high energy over-voltage transients. Their specially designed structure ensures safe over-voltage withstand capability to IEC 61000-4-5. Protective self turn-on will follow high energy voltage transients, while lower energy transients will be clamped. A choice of gate sensitivities balances high false trigger immunity with ease of triggering. Their planar-passivated construction ensures voltage ruggedness and reliability.
ACTTs are pin compatible with both 3Q Hi-Com and standard 4Q triacs.
ACTT employs our fifth-generation, triple-implanted planar passivated technology. The extra performance and superior reliability of ACTT make it ideally suited to a wide range of applications that contain highly inductive, resistive and safety loads.
Products
| Type number | Description | Status | Quick access |
|---|---|---|---|
| ACTT2S-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online | |
| ACTT2X-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online | |
| ACTT4S-800C | AC Thyristor Triac power switch | Download datasheet Order sample | |
| ACTT4S-800E | AC Thyristor Triac power switch | Download datasheet Order sample | |
| ACTT4X-800C | AC Thyristor Triac power switch | Download datasheet Order sample | |
| ACTT4X-800E | AC Thyristor Triac power switch | Download datasheet Order sample | |
| ACTT6-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online | |
| ACTT6B-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online | |
| ACTT6G-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online | |
| ACTT6X-800E | AC Thyristor Triac power switch | Download datasheet Order sample Buy online |







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