MSK4891_15 Datasheet, PDF (1/5 Pages) M.S. Kennedy Corporation – Proprietary Encapsulation Provides Near Hermetic Performance

MIL-PRF-38534 CERTIFIED FACILITY
600V/300A
M.S.KENNEDY CORP.
SCR/DIODE PEM
4707 Dey Road Liverpool, N.Y. 13088
FEATURES:
SCR/DIODE Topology
600V Rated Voltage
300A Continuous Current
Proprietary Encapsulation Provides Near Hermetic Performance
HI-REL Screening Available (Modified 38534)
Light Weight Domed ALSIC Baseplate
Robust Mechanical Design for Hi-Rel Applications
Ultra-Low Inductance Internal Layout
Withstands 96 Hours HAST and Thermal Cycling (-55°C to +125°C)
4891
[phone]
DESCRIPTION:
The MSK 4891 is one of a family of plastic encapsulated modules (PEM) developed specifically for use in military,
aerospace and other severe environment applications. The SCR/DIODE configuration and 600 volt/300 amp rating make it
ideal for use in high current motor drive and inverter brake applications. The Aluminum Silicon Carbide (AlSiC) baseplate
offers superior flatness and light weight; far better than the copper or copper alloys found in most high power plastic
modules. The high thermal conductivity materials used to construct the MSK 4891 allow high power outputs at elevated
baseplate temperatures. Our proprietary coating, SEES™ - Severe Environment Encapsulation System - protects the internal
circuitry of MSK PEM's from moisture and contamination, allowing them to pass the rugged environmental screening
requirements of military and aerospace applications. MSK PEM's are also available with industry standard silicone gel
coatings for a lower cost option.
EQUIVALENT SCHEMATIC
TYPICAL APPLICATIONS
Motor Drives
Inverters
1
Rev. B 8/11