MOTOROLA MCR12 Series Data Sheet
Summary
This professional datasheet describes the MCR12/D thyristor, a high-reliability semiconductor component designed specifically for half-wave AC control applications. Ideal for motor controls, heating systems, or power supply management where durable, silicon gate–controlled devices are required. The document provides comprehensive technical data, including maximum ratings (up to 800V and 12A RMS), detailed electrical characteristics, thermal specifications, and package dimensions. This resource is essential for electrical engineers and design specialists integrating robust AC power switching solutions into their demanding industrial circuits.
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SEMICONDUCTOR TECHNICAL DATA by MCR12/D
*Motorola preferred devices
SCRs 12 AMPERES RMS 600 thru 800
Designed primarily for half–wave ac control applications, such as motor
VOLTS
controls, heating controls, and power supplies; or wherever half–wave, silicon gate–controlled devices are needed. Blocking Voltage to 800 Volts On–State Current Rating of 12 Amperes RMS High Surge Current Capability — 100 Amperes Industry Standard TO–220AB Package for Ease of Design Glass Passivated Junctions for Reliability and Uniformity
CASE 221A-09 (TO-220AB) Style 3
MAXIMUM RATINGS (TJ = 25°C unless otherwise noted)
Parameter Symbol Value Unit
Peak Repetitive Off–State Voltage (1) VDRM Volts Peak Repetitive Reverse Voltage VRRM (TJ = –40 to 125°C) MCR12M
MCR12N
On–State RMS Current IT(RMS) (All Conduction Angles) Peak Non–repetitive Surge Current ITSM (One Half Cycle, 60 Hz, TJ = 125°C) Circuit Fusing Consideration (t = 8.3 ms) I2t A2sec
Peak Gate Power (Pulse Width 1.0 µs, TC = 80°C) PGM 5.0 Watts
Average Gate Power (t = 8.3 ms, TC = 80°C) PG(AV) 0.5 Watts
Peak Gate Current (Pulse Width 1.0 µs, TC = 80°C) IGM 2.0
Operating Junction Temperature Range TJ –40 to +125 °C Storage Temperature Range Tstg –40 to +150 °C THERMAL CHARACTERISTICS Thermal Resistance — Junction to Case RθJC 2.0 °C/W
— Junction to Ambient RθJA 62.5
Maximum Lead Temperature for Soldering Purposes 1/8″ from Case for 10 Seconds TL °C (1) VDRM and VRRM for all types can be applied on a continuous basis. Ratings apply for zero or negative gate voltage; positive gate voltage shall not be applied concurrent with negative potential on the anode. Blocking voltages shall not be tested with a constant current source such that the voltage ratings of the devices are exceeded.
This document contains information on a new product. Specifications and information herein are subject to change without notice.
Preferred devices are Motorola recommended choices for future use and best overall value.
REV 1
1Motorola Thyristor Device Data
Motorola, Inc. 1999
Page Summary Contents For MOTOROLA MCR12 Series Data Sheet
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 4 |
| File Size | 66.90 KB |
| Published | June 02, 2026 |
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Frequently Asked Questions
What type of electrical control applications are these devices designed for?
They are primarily designed for half–wave ac control applications, such as motor VOLTS controls and heating controls.
What is the maximum operating junction temperature range?
The Operating Junction Temperature Range specified is from –40 to +125 °C.
Are there specific rules when testing blocking voltage ratings?
Blocking voltages shall not be tested with a constant current source such that the voltage ratings of the devices are exceeded.
What is the peak non-repetitive surge current capacity?
The device has a Peak Non–repetitive Surge Current capacity of 100 A (measured TSM).