SENSITRON
SEMICONDUCTOR
221 West Industry Court
3
Deer Park, NY 11729-4681
3
Phone (631) 586 7600 Fax (631) 242 9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SPD-8A115
Technical Data
Datasheet 4119, Rev. B
AC/DC Solid State Power Controller Module
Description:
The Solid State Power Controller (SSPC) Module is a microcontroller based Solid State Relay, designed to
be used in Aircraft or Navy in 115VAC/150VDC applications. This module has integrated current sensing
and over current / over temp protection. The module is equivalent to a DPST relay with a common single
side isolated control.
Compliant Documents & Standards:
MIL-STD -167-1 (1)
Mechanical Vibrations of Shipboard Equipment
19 June 1987
MIL-STD -217F
Reliability Prediction of Electronic Equipment
Notice 2 28 Feb 1995
P4855-1A
Navy Power Supply Design and Reliability Guidelines (NAVMAT)
January 1989
Module Features:
Epoxy Shell Construction
Solid State Reliability; Low Weight (60 gms) - High Power Density
Similar footprint as a mechanical relay: 2.8"x1.15"x1.15"
Single-in-line pins to ease pcb assembly
Electrical Features:
115VAC Input: Current rating of 8A with very low drop; 180mV typ
Current rating upto 12A with drop @ 280mV
Advanced TRUE I
2
t algorithm to compensate for different current waveforms
2-Pole operation: 500V DC isolation between poles
High control circuit isolation: 1500V DC to either pole
Cross-trip feature: Fault on one pole trips the other within 10
sec
Very low control current: 14 mA @ 24V typ
True I
2
t Protection from 11A to 90A
Instant Trip Protection (3
sec typ) for loads over 100A
High Overload Capability up to 250A; Repetitive Fault handling capability
Built-in Transient Voltage Suppressor to handle Short Circuit Turn-Off Spikes
Over-temperature Protection: 75
o
C Amb typ
Internally generated isolated supply to drive the switch
Opto Isolated Control Signal input and Status output
Soft Turn-on to reduce EMC issues
Module Reset with a Low Level Signal; Trip Reset Circuit is Trip-Free
Built-in Hysteresis and Noise Filtering to avoid nuisance Turn-ON/OFF
SENSITRON
SEMICONDUCTOR
221 West Industry Court
3
Deer Park, NY 11729-4681
3
Phone (631) 586 7600 Fax (631) 242 9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SPD-8A115
Technical Data
Datasheet 4119, Rev. B
Electrical Characteristics
Control & Status
Vcc
24V DC Nominal
20V to 36V DC
Control Vcc Current (from +24V)
14 mA typ
20 mA max
Alarm Out Signal
ON: High (internal pull-up to +24V);
Output can source upto 5 mA
OFF: Logic Low
Output shall remain below 2V sink upto 5 mA
Control signal
ON: Logic Low (internal pull-up to +24V)
Turns ON when input is pulled below 4V
Input current @ Control pin < 0.5 mA
OFF: Open
Turns OFF when input is float or pulled above 12V
Reset
Thro cycling of Control signal
Thro cycling of Vcc
Power
Input Voltage
0 to 170V DC
0 to 120V AC
10 Hz to 440 Hz
Power Dissipation
< 2.5W @ 8A @ 70
C Amb per pole
Current (Pole #1 and Pole #2)
8A Continuous
250A for 2
sec
Max Voltage Drop (Each Pole)
180 mV typ @ 8A, T
A
= 25
o
C
260 mV max T
A
= -40
o
C ~ 70
o
C
Turn ON time (measured from Input Signal)
3 msec max
Both Poles turn-on together
Turn OFF time (measured from Input Signal)
50
sec max
Both Poles turn-off together
Time Difference at Turn-on between Poles
20
sec max
Time Difference at Turn-off between Poles
20
sec max
Min Trip current (Each Pole)
8.8A DC
8.8A AC RMS
Trip time
11A
20A
30A
50A
90A
100A and above
460 msec ~ 860 msec
140 msec ~ 260msec
62 msec ~ 115 msec
22 msec ~ 42 msec
7 msec ~ 13 msec
Less than 3
sec
Repetitive Fault current Rating
250A
Output Rise Time (turn ON)
5
sec typ
Output Fall Time under normal turn-off
300 nsec typ
Output Fall Time under Fault
300 nsec typ
Min Load Requirement
Nil
SENSITRON
SEMICONDUCTOR
221 West Industry Court
3
Deer Park, NY 11729-4681
3
Phone (631) 586 7600 Fax (631) 242 9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SPD-8A115
Technical Data
Datasheet 4119, Rev. B
Protection
Short Circuit Protection
Upto 250A
Voltage Spikes
Built-in Transient Voltage Suppressor to handle
short-circuit turn-off spike
OTP (Over Temperature Protection) threshold
typ. 75
o
C, min. 70
o
C, max 80
o
C
OTP response time
typ. 5 sec
Physical Characteristics
Temperature
Operating Temperature
T
A
= -40
C to +70
C
Storage Temperature
T
A
= -55
C to +85
C
Environmental
Altitude
Upto 30,000 ft
Can be installed in an unpressurized area
Case Dimensions
2.8"L x 1.15"W x 1.15"H
Operating Orientation
Any
Weight
60 grams typ
MTBF (Estimate: MIL STD 217F)
100,000 hrs at 25
C Full load
Mechanical Dimensions (in Inches)
221 West Industry Court Deer Park, NY 11729-4681 (631) 586-7600 FAX (631) 242-9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DISCLAIMER:
1- The information given herein, including the specifications and dimensions, is subject to change without prior notice to improve product
characteristics. Before ordering, purchasers are advised to contact the Sensitron Semiconductor sales department for the latest version
of the datasheet(s).
2- In cases where extremely high reliability is required (such as use in nuclear power control, aerospace and aviation, traffic equipment,
medical equipment, and safety equipment), safety should be ensured by using semiconductor devices that feature assured safety or by
means of users' fail-safe precautions or other arrangement.
3- In no event shall Sensitron Semiconductor be liable for any damages that may result from an accident or any other cause during
operation of the user's units according to the datasheet(s). Sensitron Semiconductor assumes no responsibility for any intellectual
property claims or any other problems that may result from applications of information, products or circuits described in the datasheets.
4- In no event shall Sensitron Semiconductor be liable for any failure in a semiconductor device or any secondary damage resulting from
use at a value exceeding the absolute maximum rating.
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6- The datasheet(s) may not be reproduced or duplicated, in any form, in whole or part, without the expressed written permission of
Sensitron Semiconductor.
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