SM Series (SM1275)
Transient Suppression Module

SM Series Power Supply - SM1275 Transient Suppression Module

Download SM1275 data sheet

Features
Meets DC Input Transient Limits For MIL-STD-704A
  Transient 80 Vdc for 0.1 seconds
  Spike 600 Vdc for 10 µS
Meets DC Input Transient Limits For MIL-STD-1275A
  Transient 100 Vdc for 100 mS
  Spike ±250 Vdc for 50 µS

 

How To Order
Series: SM1275
Options: -C
Options: A-  pins out baseplate of unit
C-  thru hole inserts (0.140 DIA)
I-   metric inserts (M3)
Standard unit is 28 Vdc nominal input with pins out the top written as: SM1275

 

Specifications, 28 Vdc Input

Min Typ Max Units
Steady State Input 14
40 Vdc
Output Current

20 A
Output Voltage (clamp)

50 Vdc
Fuse (recommended - slow blow)
22
Adc
Insertion Loss (@ 20 A and 25oC)

1 Vdc
Input Surge Limit (for 0.1 sec, 0.5)

100 Vdc
Input Spike Limit (for 50 µS, 15mJ)

+250 Vdc
Input Spike Limit (for 10 µS, 50)

600 Vdc
Reverse Polarity Shunt Diode (input fuse required)
No Load Power Dissipation

2.5 Watt

 

Converters Only Specifications, 28 Vdc Input

Min Typ Max Units
Efficiency 90
97 %
Operating Temperature -55
100 oC
Storage Temperature -55
+125 oC
Isolation:  
Input/Output to Case
500

Vdc
Insulation Resistance (@50 Vdc) 50

MOhm
Size 2.4 x 2.3 x 0.5 inch

61 x 59 x 13 mm
Weight   4.5   oz
    130   grams
Environmental MIL-STD-810C