1

Motorola Thyristor Device Data

Advance Information

Silicon Controlled Rectifiers

Reverse Blocking Thyristors

Designed primarily for half–wave ac control applications, such as motor

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 8 Amperes RMS

• High Surge Current Capability — 90 Amperes

• Industry Standard TO–220AB Package for Ease of Design

• Glass Passivated Junctions for Reliability and Uniformity

MAXIMUM RATINGS (TJ = 25°C unless otherwise noted)

Parameter

Symbol

Value

Unit

Peak Repetitive Off-State Voltage (1)

Peak Repetitive Reverse Voltage

(TJ = –40 to 110°C; RGK = 1.0 KΩ)

MCR8SD

MCR8SM

MCR8SN

VDRM

VRRM

400

600

800

Volts

On-State RMS Current

(All Conduction Angles)

IT(RMS)

8

A

Peak Non-repetitive Surge Current

(One Half Cycle, 60 Hz, TJ = 125°C)

ITSM

90

A

Circuit Fusing Consideration (t = 8.3 ms)

I2t

34

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

A

Operating Junction Temperature Range

TJ

– 40 to +110

°C

Storage Temperature Range

Tstg

– 40 to +150

°C

THERMAL CHARACTERISTICS

Thermal Resistance — Junction to Case

R

θJC

R

θJA

2.2

62.5

°C/W

Maximum Lead Temperature for Soldering Purposes 1/8

″ from Case for 10 Seconds

TL

260

°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.

Order this document

by MCR8S/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

© Motorola, Inc. 1995

MCR8S

SERIES

CASE 221A–06

(TO-220AB)

Style 3

K

A

G

SCRs

8 AMPERES RMS

400 thru 800

VOLTS

*Motorola preferred devices

A

*