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SPD40D28 Datasheet, PDF (1/11 Pages) Sensitron – DC Solid State Power Controller Module
SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DATASHEET 5012, Rev. -
SPD40D28
DC Solid State Power Controller Module
Description:
The Solid State Power Controller (SSPC) Module is a 40 Amp microcontroller-based Solid State Relay
designed to be used in hi-rel 28V DC applications. This module has integrated current sensing with no
derating over the full operating temperature range. The module is the electronic equivalent to an
electromechanical circuit breaker with isolated control and status.
Compliant Documents & Standards:
MIL-STD-1275B, Notice1 Characteristics of 28 Volt DC Electrical Systems in Military Vehicles –
20 April 2004
MIL-STD-704F
Aircraft Electrical Power Characteristics - 12 March 2004
MIL-STD-217F, Notice 2 Reliability Prediction of Electronic Equipment - 28 Feb 1995
Module Features:
• Epoxy Shell Construction
• Solid State Reliability; Low Weight (20 gms) - High Power Density
• Same Pin Out as Industry Standard SSPCs in a Smaller Outline
• Extremely Low Power, No Derating Over the Full Temperature Range
Electrical Features:
• 28VDC Input: Current Rating of 40A with Very Low Drop; 24mV, typ.
• True I2t Protection from 50A to 400A with Nuisance Trip Suppression
• Instant Trip Protection (50 µsec typ) for Loads Above 400A
• Unlimited Interrupt Capability; Repetitive Fault Handling Capability
• Thermal Memory
• Internally Generated Isolated Supply to Drive the Switch
• Low Bias Supply Current: 20 mA typ @ 5V DC
• High Control Circuit Isolation: 750V DC Control to Power Circuit
• Soft Turn-On to Reduce EMC Issues
• EMI Tolerant
• Module Reset with a Low Level Signal; Trip Reset Circuit is Trip-Free
• TTL/CMOS Compatible, Optically Isolated, Input and Outputs
• Schmitt-Trigger Control Input for Noise Immunity
• 221 West Industry Court  Deer Park, NY 11729-4681  Phone (631) 586 7600 Fax (631) 242 9798 •
• World Wide Web - http://www.sensitron.com • E-Mail Address - sales@sensitron.com •