Motorola MAC218 Series MAC218A Series Data Sheet User Guide
Summary
Engineered for reliable full-wave AC control, these silicon bidirectional thyristors are ideal components for power supplies, motor controls, and light dimmers. This comprehensive technical guide provides critical data—including current ratings (up to 8 Amps), peak blocking voltage specifications, thermal characteristics, and triggering parameters—for system designers. Use this manual to ensure proper device selection, calculate power dissipation, and integrate thyristor components into high-performance solid-state switching circuits.
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SEMICONDUCTOR TECHNICAL DATA by MAC218/D
Silicon Bidirectional Thyristors . . . designed primarily for full-wave ac control applications, such as light dimmers, motor controls, heating controls and power supplies.
TRIACs
Blocking Voltage to 800 Volts 8 AMPERES RMS Glass Passivated Junctions for Greater Parameter Uniformity and Stability 200 thru 800 VOLTS TO-220 Construction Low Thermal Resistance, High Heat Dissipation and Durability Gate Triggering Guaranteed in Three Modes (MAC218 Series) or Four Modes (MAC218A Series)
MT2 MT1
CASE 221A-04 (TO-220AB) STYLE 4
MAXIMUM RATINGS (TJ = 25°C unless otherwise noted.)
Rating Symbol Value Unit
Peak Repetitive Off-State Voltage(1) VDRM Volts (Gate Open, TJ = 25 to 125°C) MAC218-4, MAC218A4
MAC218-6, MAC218A6 MAC218-8, MAC218A8 MAC218-10, MAC218A10
On-State Current RMS IT(RMS) Amps (Conduction Angle = 360°, TC = +80°C) Peak Non-repetitive Surge Current ITSM Amps (One Full Cycle, 60 Hz, TC = 80°C, preceded and followed by rated current) Fusing Current I2t A2s (t = 8.3 ms) Peak Gate Power PGM Watts (TC = +80°C, Pulse Width = 2 µs) Average Gate Power PG(AV) 0.35 Watt (TC = +80°C, t = 8.3 ms) Peak Gate Trigger Current IGTM Amps (Pulse Width = 1 µs) Operating Junction Temperature Range TJ –40 to +125 °C Storage Temperature Range Tstg –40 to +150 °C 1. VDRM for all types can be applied on a continuous basis. Blocking voltages shall not be tested with a constant current source such that the voltage ratings of the devices are exceeded.
1Motorola Thyristor Device Data
Motorola, Inc. 1995
Page Summary Contents For Motorola MAC218 Series MAC218A Series Data Sheet User Guide
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 4 |
| File Size | 83.89 KB |
| Published | May 31, 2026 |
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Frequently Asked Questions
What is the operating temperature range of the THYRISTOR?
The Operating Junction Temperature Range is specified as -40 to +125 °C.
Can blocking voltage be tested using a constant current source?
No, blocking voltages shall not be tested with a constant current source such that the DRM voltage ratings of the devices are exceeded.
How large is the device's thermal resistance from junction to case?
The typical maximum thermal resistance ($R_{2.2 heta JC}$) is 2.2 °C/W.
What type of control applications are these thyristors designed for?
These devices are primarily designed for full-wave AC control applications, such as light dimmers or motor controls.