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Série MH


MH Series (MH500S)
500 Watt Single Output Power Supply

Features

500 watt switching 100 KHz power supply.

High efficiency, 65% minimum.

Standard soft-start, overvoltage protection and short circuit protection.

 

Click here for datasheet (PDF)


Specifications

Input:

103.5-126.5 Vac, 47-440 Hz, single phase. For 207-253 Vac input, add "(230)" at the end of the model number.

Efficiency:

65% minimum.

Line Regulation:

25 mV or withing 0.2%, whichever is greater, for input change of 103.5 to 126.5 Vac with load constant.

Load Regulation:

25 mV or 0.2%, whichever is greater for change from no load to full load with line constant.

Pard (Noise and Ripple):

50 mV rms, 100 mV P-P maximum at 25 MHz bandwidth.

Isolation Voltage:

500 Vdc, input to output; 500 Vdc, input to case; 100 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: 0°C to +71°C maximum, at center of the mounting. Storage: -55°C to +85°C, ambient.

Temperature Coefficient:

0.03% / °C maximum over entire temp range.

Input Transient Protection:

Unit will provide normal regulated output and withstand 180 Vac for 0.1 second, in accordance with MIL-STD-704A.

Load Transient Recovery:

Output voltage returns to regulation limits within 300 microseconds after 50% change in load current.

Holdup time:

20ms after nominal input is lost at full load.

Short Circuit Protection:

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

Overvoltage Protection:

A non-crowbar type OVP. Input must be recycled to restore output.

Remote Sensing:

Regulator monitors voltage directly at the load using extra "sensing" leads and compensates for a dc voltage drop up to .3 volt in the load leads.

EMI:

Units were designed and tested to the requirement of MIL-STD-461B, Class A1B, for generation of and susceptibility to radiated and conducted interference. For further details and reports, consult your nearest sales office.

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 MH500S at ground benign environment is 54,530 hours.

Environment:

Encapsulated and hermetically sealed to meet the environmental requirements of MIL-STD-810C, MIL-S-901C, and MIL-E-5400P, Class 2, including altitude (to 70,000 feet), vibration, shock, acceleration, sand, dust, humidity, saltspray, fungus, explosion, etc.

Connectors:

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


Single Output

 

Output Voltage Range

Output Current (Amps)

Weight (oz.)

Size (inches)

MH500S/5-DE

4.75-5.25

100

15

7 x 10 x 3.5

MH500S/12-DE

11.40-12.60

41.67

15

7 x 10 x 3.5

MH500S/15-DE

14.25-15.75

33.33

15

7 x 10 x 3.5

MH500S/24-DE

22.80-25.20

20.83

15

7 x 10 x 3.5

MH500S/28-DE

26.60-29.40

17.86

15

7 x 10 x 3.5

Case diagram.

Model Numbering System

Model Series

Total Output Power

Number of Outputs

 

Main Output Voltage

 

Header Type

 

Encapsulation (Standard)

 

Options

MH

500

S

/

12

-

D

-

E

-

R


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".

H Option:

Wide Input Voltage. Unites will operate either from 115 Vac±15%. To order, add an "H" after the "E" 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 "E" in the model number.

R Option:

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

T Option:

Wider Operating Temperature. -20°C to +71°C. To order, add "T" after "E" in the model number.

-ER Option:

Provides increased reliability by using higher levels of military grade components.

-3 Option:

WYE Input. Changes input to 3-phase, 4-wire "WYE". To order, add "-3" to the end of the model number.

-6 Option:

Three Phase Delta Input. Changes input to 3-Phase Delta. To order, add "-6" to the end of the model number.

-8 Option:

Variable Input. Allows input to be either 115 Vac or 230 Vac, selectable by input pin wiring, 47 - 440 Hz. To order, add "-8" to the end of the model number.


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