| c |
MH Series (M500)
500 Watt Single Output Power Supply

| Features |
| 500 watt single output switching power
supply. |
| High efficiency, 60% minimum. |
| Short circuit protection standard. |
| Meets MIL-STD-461C, MIL-STD-810C and
MIL-S-901C. |
| Specifications |
| Input: |
103.5-126.5 Vac, 47-440 Hz,
single phase. For 207 to 23V Vac input adda a "(230)" to end of model
number. Other inputs available (H and -3 options.) |
| Efficiency: |
60% minimum at full load. |
| Line
Regulation: |
25 mV or within 0.2%,
whichever is greater, for change from low line to high line 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): |
Main and Auxiliary outputs:
50 mV rms, 100 mV P-P maximum at 25 MHz bandwidth, over entire temperature range. |
| 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. |
| Temperature
Range: |
Operating: 0°C to +71°C
maximum, at center of the baseplate. Storage: -55°C to +85°C, ambient. |
| Temperature
Coefficient: |
0.01% / °C for main and
auxiliary outputs over entire temp range. |
| Input Transient
Protection: |
Unit will withstand 180 Vac
for 0.1 second, in accordance with MIL-STD-704A. |
| Load Transient
Recovery: |
Output voltage returns to
regulation limits within 300 milliseconds 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. |
| Remote Sensing: |
Regulator monitors voltage
directly at the load using extra "sensing" leads and compensates for a dc
voltage drop up to 0.3 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 M300T at ground benign environment is 77,455
hours. |
| Environment: |
Encapsulated and
hermetically sealed to meet the environmental requirements of MIL-STD-810C, 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 (Lbs.) |
Size (inches) |
| A |
B |
C |
| MH500S/5-DE |
4.75-5.25 |
100.0 |
15 |
7 x 10 x 3.5 |
| MH500S/12-DE |
11.40-12.60 |
41.6 |
15 |
7 x 10 x 3.5 |
| MH500S/15-DE |
14.25-15.75 |
33.3 |
15 |
7 x 10 x 3.5 |
| MH500S/24-DE |
22.80-25.20 |
20.8 |
15 |
7 x 10 x 3.5 |
| MH500S/28-DE |
26.60-29.40 |
17.8 |
15 |
7 x 10 x 3.5 |
| Model Numbering System |
| Model
Series |
Total Output Power |
Number of Outputs |
 |
Main Output Voltage |
 |
Header Type |
 |
Options |
| MH |
500 |
S |
/ |
5 |
- |
D |
- |
E |
| Options |
| A Option: |
Special Connectors. A
military-type hermetically sealed connector is provided in place of our standard input
header. To order, replace the "E" 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.
Standard on MH500. |
| H Option: |
Wide Input Voltage. Unites
will operate from 115 or 230V ±15%. To order, add an "H" after the
"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 "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 Pard. To order, add "T" after "E" 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. |
| -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: |
Delta input option changes
input to the 3-phase Delta. To order add a "-6" to the end of the model
number. |
|