MOTOROLA MCR218FP Series Data Manual, Part 1 User Guide
Summary
These isolated SCRs are robust reverse blocking thyristors, engineered for critical half-wave AC control applications, such as industrial motor and heating controls, and power supply crowbar circuits. This technical manual provides comprehensive data sheets covering maximum operational limits, surge handling (up to 80A), thermal parameters, and electrical characteristics necessary for precise system design. It is essential reading for power electronics engineers and technicians selecting components for reliable high-power switching applications.
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SEMICONDUCTOR TECHNICAL DATA by MCR218FP/D
Reverse Blocking Thyristors . . . designed primarily for half-wave ac control applications, such as motor controls, heating controls and power supply crowbar circuits. ISOLATED SCRs
8 AMPERES RMS
Glass Passivated Junctions with Center Gate Fire for Greater Parameter Uniformity
400 thru 800
and Stability
VOLTS
Small, Rugged, Thermowatt Constructed for Low Thermal Resistance, High Heat Dissipation and Durability Blocking Voltage to 800 Volts 80 A Surge Current Capability Insulated Package Simplifies Mounting
CASE 221C-02 STYLE 2
MAXIMUM RATINGS (TJ = 25°C unless otherwise noted.)
Rating Symbol Value Unit
Peak Repetitive Forward and Reverse Blocking Voltage(1) VDRM Volts (TJ = –40 to +125°C, Gate Open) VRRM
MCR218-6FP MCR218-8FP MCR218-10FP
On-State RMS Current (TC = +70°C) Full Cycle Sine Wave 50 to 60 Hz(2) IT(RMS) Amps Peak Nonrepetitive Surge Current (One Full Cycle, 60 Hz, TC = +70°C) ITSM Amps Preceded and followed by rated current Circuit Fusing (t = 8.3 ms) I2t A2s Peak Gate Power (TC = +70°C, Pulse Width = 10 µs) PGM Watts Average Gate Power (TC = +70°C, t = 8.3 ms) PG(AV) 0.5 Watt Peak Gate Current (TC = +70°C, Pulse Width = 10 µs) IGM Amps RMS Isolation Voltage (TA = 25°C, Relative Humidity 20%) V(ISO) Volts Operating Junction Temperature TJ –40 to +125 °C Storage Temperature Range Tstg –40 to +125 °C 1. VDRM and VRRM for all types can be applied on a continuous basis. Ratings apply for zero or negative gate voltage; however, 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. 2. The case temperature reference point for all TC measurements is a point on the center lead of the package as close as possible to the plastic body.
REV 1
1Motorola Thyristor Device Data
Motorola, Inc. 1999
Page Summary Contents For MOTOROLA MCR218FP Series Data Manual, Part 1 User Guide
Manual Details
| Brand | Motorola |
|---|---|
| Pages | 6 |
| File Size | 96.46 KB |
| Published | June 05, 2026 |
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Frequently Asked Questions
What types of applications are these thyristors designed for?
They are primarily designed for half-wave AC control applications, such as motor controls, heating controls, and power supply crowbar circuits.
What is the maximum surge current capability?
The device offers an 80 A Surge Current Capability (TCS).
Are there restrictions on anode voltage application?
For positive gate triggering, negative potential shall not be applied concurrently with positive potential on the anode.
What is the minimum allowable Junction to Ambient Thermal Resistance of a package?
The thermal resistance from junction to ambient ($ heta_{JA}$) is listed as 60 °C/W.