Specifications
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Input:
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105-125 Vac, 380-420 Hz, three phase
delta. Wye configurations available (option-3).
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Output (nominal):
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5, 6, 12, 15, 24, 28 Vdc (single output). ±12, ±15
Vdc (dual output).
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Efficiency:
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30% minimum, 50% typical.
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Line Regulation:
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Within 0.1% or 20 mV (whichever is greater)
for change from low line to high line with load constant.
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Load Regulation:
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Within 0.1% or 20 mV (whichever is greater)
for change from no load to full load with line constant.
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Auxiliary Output Tracking:
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WWL Models. The negative output will track the
positive output within 1% or 100 mV (whichever is greater) for
all rated conditions.
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Pard (Noise and Ripple):
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0.02% or 5 mV rms (whichever is greater), 25
mV P-P at 25 MHz bandwidth.
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Isolation Voltage:
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750 Vdc, input to output; 750 Vdc, input to
case; 200 Vdc, output to case.
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Insulation Resistance:
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50 Mohms between input and output, input and
case, output and case, when measured at 50 Vdc.
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Polarity:
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Inputs and outputs are isolated. Either positive
or negative side of output may be grounded.
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Temperature Range:
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Operating: -55°C to +85°C maximum, at center
of the baseplate (-55°C to +100°C at 80% rated power). Storage:
-65°C to +125°C, ambient.
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Temperature Coefficient:
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0.03% / °C maximum.
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Input Transient Protection:
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Unit will withstand 180 Vac for 0.1 second,
in accordance with MIL-STD-704.
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Load Transient Response:
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Output voltage returns to regulation limits
within 100 microsecond for auxiliary outputs after 50% change in
load current for units supplying more than 10 A.
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Load Transient Overshoot:
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0.2% or 30 mV (whichever is greater) from nominal
voltage set point.
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Short Circuit Protection:
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Completely protected against a short circuit
of any duration. Output automatically restores to normal when overload
is removed.
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Remote Sensing:
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Regulator monitors voltage directly at the load
using extra "sensing" leads and compensates for a dc
voltage drop up to 0.5 volt in the load leads (single output models
only).
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EMI:
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Units were designed and built to minimize EMI/EMC
emissions, and comply with the requirements of MIL-STD-461A by
virtue of their topology, construction and enclosure.
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Reliability:
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MTBF is calculated per MIL-HDBK-217D at 50°C
baseplate temperature with maximum operating input voltage and
maximum rated output power. The MTBF at ground benign environment
is 164,406 hours.
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Environment:
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Encapsulated and hermetically sealed to meet
the environmental requirements of MIL-STD-810C, including altitude
(to 1.3 inches of Hg), acceleration, vibration, shock and temperature
altitude cycling.
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Connectors:
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Standard unit is provided with an input solder
pin header and an output "hermetic seal" stud-type connector.
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Weight (Lbs.):
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2.4 - 7.7
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Size (inches):
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See Selection
Chart (PDF)
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Options
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A Option:
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Special Connectors. A military-type
hermetically sealed connector is provided in place of our standard
input header. To order, replace the "D" in the model
with "A".
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E Option:
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Severe Shock, Acceleration and Vibration. Enables
all units to withstand 60g's shock, 50g's acceleration and 30g's
vibration. To order, add "E" after "D" in the
model number.
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H Option:
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Recentered Input Voltage. Changes input specifications
to: 208 to 230 Vac. Some derating may be required. To order,
add an "H" after the "D" in the model number
and indicate new input voltage range in parentheses after the model
number.
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L Option:
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Remote Turn On/Off. Provides isolated terminals
to turn output on/off with TTL logic signal. To order, add "L" after "D" in
the model number.
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R Option:
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An adjustment potentiometer can be remotely
located to adjust the output voltage. To order, add "R" after
the "D" in the model number.
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-ER Option:
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Provides increased reliability by using higher
levels of military grade components. To order, add "-ER" after
the model number.
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-1 Option:
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Internal Overvoltage Protection. Provides a
crowbar internal OVP. Input must be recycled to restore output.
May inccrease case size. To order, add "-1" to the end
of the model number.
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-3 Option:
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WYE Input. Changes input specifications from
3-phase Delta to 3-phase, 4-wire WYE. To order, add "-3" to
the end of the model number.
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WL
Series