Motorola MCR25 Series Data Handbook
Summary
This document provides comprehensive technical specifications and detailed operating guidelines for Motorola SCR (Silicon Controlled Rectifier) Thyristor devices, such as the MCR25/D series. Ideal for engineers and technicians designing power control systems, these components are primarily used in half-wave AC applications like motor controls, heating elements, and general power supplies. The manual details essential electrical characteristics, thermal data, surge capabilities (up to 300 A), key ratings (blocking voltage up to 800V), and recommended safety guidelines for reliable integration into complex electronic circuits.
Page 1 Text Content
查询MCR25/D供应商
Order this document
SEMICONDUCTOR TECHNICAL DATA by MCR25/D
*Motorola preferred devices
Designed primarily for half–wave ac control applications, such as motor SCRs controls, heating controls, and power supplies; or wherever half–wave, silicon 25 AMPERES RMS gate–controlled devices are needed. 400 thru 800
VOLTS
Blocking Voltage to 800 Volts On-State Current Rating of 25 Amperes RMS High Surge Current Capability — 300 Amperes Industry Standard TO–220AB Package for Ease of Design Glass Passivated Junctions for Reliability and Uniformity
CASE 221A–06 (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) MCR25D
MCR25M MCR25N
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 20.0 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 1.5 °C/W
— Junction to Ambient RθJA 62.5
Maximum Lead Temperature for Soldering Purposes 1/8″ from Case for 5 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.
Preferred devices are Motorola recommended choices for future use and best overall value. REV 2
1Motorola Thyristor Device Data
Motorola, Inc. 1995
Page Summary Contents For Motorola MCR25 Series Data Handbook
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 6 |
| File Size | 432.39 KB |
| Published | June 05, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What types of AC applications are these devices designed for?
They are designed primarily for half-wave AC control, suitable for motor SCRs controls, heating controls, and power supplies.
What is the maximum continuous on-state current rating?
The device has an On-State RMS Current rating of 25 Amperes. It also handles a surge of 300 Amperes.
Are there temperature restrictions for use?
Yes, the operating junction temperature range (T) is specified from -40°C to +125°C.
Can this component be used in life support or medical implants?
No. The manual warns it must not be used in applications intended to support life or for surgical implants due to safety risks.