Power supply protection for any equipment directly connected to
vehicle power system

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  General Description

MIL-STD-1275  Power  Line  Protection  are  unique,  small dimension  units  that  provide  adequate  protection  against  all over  voltage  transients  (Surges  and  Spikes)  phenomena  of power lines, in ground mobile vehicles. It  is  designed  for  both  floating  and  grounded  to  chassis  input voltage. The small dimension enables PCB mounting for ease of usage. The product  is also available  in wire-lead  termination  for other installation options. The product contains reversed polarity protection and clamping
of high voltage input. The protection  is against high  (up  to 100V@50ms) surges and spikes (± 250V@15mJ). This  power  line  protection  is  the  solution  for  equipment  that
does not powered by PDSU product		  

Typical Specifications

  • Input Working Voltage:
 12V to 33V
  • Input Transient Voltage: 
 +100V@50msec@0.5Ω source impedance ±250Vpk@50usec@15mj
  • Output Working Voltage:
  VO=VIN - Dropout (11Vmin to 33Vmax)
  •  Output Transient Working Voltage:
  33V to 37V@50msec
  •  Working Current:
   20A max.
  •  Input to Output Voltage Dropout:
   1V@20A, 100mV@0.5A, 0.6V@12A, 
  •  Power Dissipation:
   20W max@20A, 10W@10A
  •  Transient Power Dissipation:
   2000W@50msec
  •  Shut Down:
    “0” Enabled
  •   Insulation (Only for floated configuration):
  
    •  Input to Chassis:
  1500Vdc@1sec
    •  Output to Chassis:
  1500Vdc@1sec
  •  Quiescent Current:
   20mA@ VIN=24V
  •  Reverse Voltage Protection:
    0 to (-36V)
  •  Response Time:
   ton=20msec@Vin=0V to VIN=24V
  •   Dimensions:
  half brick case (57.9mmX61.0mmX21.4mm)
  •  Weight:
   125gr

Environmental Conditions: 
 

Operating Temperatures: - 40°C to 71°C
Storage temperatures: - 40°C to 71°C
Vibration:  Method 514.5, Proc I, Cat 20 Ground Vehicle.
Shock: 40g X 15ms Saw Tooth

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