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Séries "W" e "WW"


W Series
12 - 280 Watt Single Output Power Supply
WW Series
1.8 - 240 Watt Dual Output Power Supply

Features

High reliability linear, MTBF 214,600 hours.

Military operating temp range: -55°C to +100°C.

249 standard models.

Meets MIL-STD-461A, MIL-STD-810C and MIL-S-901C.

 

Click here for datasheet (PDF)


Specifications

Input:

105-125 Vac, 380-420 Hz, single phase.

Output:

5-100 Vdc (single output).
± 3, ±30 Vdc (dual output).

Efficiency:

25-60%.

Line Regulation:

Single output within 0.1%, dual output within 0.2% or 10 mV (whichever is greater) for change from low line to high line with load constant.

Load Regulation:

Single output within 0.1%, dual output within 0.2% or 20 mV (whichever is greater) for change from no load to full load with line constant.

Auxiliary Output Tracking:

WW Models. The negative output will track the positive output within 1% or 100 mV (whichever is greater) for all rated conditions.

Pard (Noise and Ripple):

0.02% or 5 mV rms (whichever is greater), 25 mV P-P at 25 MHz bandwidth.

Isolation Voltage:

750 Vdc, input to output; 750 Vdc, input to case; 200 Vdc, output to case.

Insulation Resistance:

50 Mohms between input and output, input and case, output and case, when measured at 50 Vdc.

Polarity:

Inputs and outputs are isolated. Either positive or negative side of output may be grounded.

Temperature Range:

Operating: -55°C to +100°C maximum, at center of the baseplate. Storage: -65°C to +125°C, ambient.

Temperature Coefficient:

0.03% / °C maximum.

Input Transient Protection:

Unit will withstand 180 Vac for 0.1 second, in accordance with MIL-STD-704A.

Load Transient Recovery:

Single output: output voltage returns to regulation limits within 100 microsecond for auxiliary outputs after 50% change in load current for units supplying 10 A or less and 200 microseconds for units supplying more than 10 A. Dual output: output voltage returns to regulation limits within 200 microseconds after 50% change in load current

Turn-on/Turn-off Overshoot:

Single output 0.2% or 20 mV (whichever is greater), dual output 0.2% or 30 mV (whichever is greater) from nominal voltage set point.

Short Circuit Protection:

Completely protected against a short circuit of any duration. Output automatically restores to normal when overload is removed.

Overvoltage Protection:

External modules are available for use with all models and internal OVP circuit is available for selected models. Please see -1 option.

EMI:

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.

Reliability:

MTBF is calculated per MIL-HDBK-217D at 50°C baseplate temperature with maximum operating input voltage and maximum rated output power. The MTBF for W5D10 at ground benign environment is 214,600 hours.

Environment:

Encapsulated and hermetically sealed to meet the environmental requirements of MIL-STD-810C.

Connectors:

Standard unit is provided with an input solder pin header and an output "hermetic seal" stud-type connector.

Weight (Lbs.):

1.9 - 8.9

Size (inches):

See Selection Chart (PDF)

 

Single-Output
Click here for a larger version of this graphic.

Dual-Output
Dual-Output Case Diagram


Model Numbering System

Model Series

Nominal Output Voltage

Header Type

Options

 

Maximum Output Current

W*

9

D

L

-

10

*W is for single output, WW is for dual output.


SELECTION CHART for listing of popular models, case sizes, pin outs and input currents.

Options

A Option:

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".

E Option:

Severe Shock, Acceleration and Vibration. Enables all units to withstand 60 g's shock, 50 g's acceleration and 30g's vibration. To order, add "E" after "D" in the model number.

L Option:

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.

R Option:

An adjustment potentiometer can be remotely located to adjust the output voltage. To order, add "R" after the "D" in the model number.

Y Option:

Remote Error Sensing. Regulator monitors the output voltage directly at the load using extra "sensing" leads and compensates for a dc voltage drop of up to .3 volts in the load lead. This option is inluded at no extra charge when Option A is ordered. To order, add "Y" after "D" in the model number.

-ER Option:

Provides increased reliability by using higher levels of military grade components. To order, add "-ER" after the model number.

-1 Option:

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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