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Série M


M Series (M300S/M300T)
300 Watt Single & Triple Output Power Supply

Features

300 watt single & triple output switching power supply.

High efficiency, 60% minimum.

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

 

Click here for datasheet (PDF)


Specifications

Input:

103.5-126.5 Vac, 47-440 Hz, single phase. 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.

Auxiliary Output Tracking:

The negative output will track the positive output within 200 mV for all rated conditions (M300T).

Pard (Noise and Ripple):

Main and Auxiliary outputs: 30 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 143.8 Vac for 0.3 second, in accordance with MIL-STD-1399.

Load Transient Recovery:

Output voltage returns to regulation limits within 1.5 milliseconds for main and 100 microseccond for auxiliary outputs after 50% change in load current.

Holdup time:

10ms 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.

Current Limiting:

Output current is limited to 120% on main and auxiliary outputs (±10%) under overload conditions.

Remote Sensing:

Regulator monitors voltage directly at the load using extra "sensing" leads and compensates for a dc voltage drop up to .5 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 and MIL-S-901C, 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
(Lbs.)

Size (inches)

A

B

C

M300S/5-D

4.75-5.25

60.0

7.8

6 x 8 x 3

M300S/12-D

11.40-12.60

25.0

7.8

6 x 8 x 3

M300S/15-D

14.25-15.75

20.0

7.8

6 x 8 x 3

M300S/24-D

22.80-25.20

12.5

7.8

6 x 8 x 3

M300S/28-D

26.60-29.40

10.7

7.8

6 x 8 x 3


Triple Output

 

Output Voltage (main/aux)

Output Current (m/aux)

Weight (Lbs.)

Size (inches)

A

B

C

M300T/5/12-D

5 / ±12

48/2.5

9.2

6 x 8 x 3

M300T/5/15-D

5 / ±15

48/2.0

9.2

6 x 8 x 3


Model Numbering System

Model Series

Total Output Power

# of Outputs

 

Main Output Voltage

 

Aux. Output Voltage

 

Header Type

 

Options

M

300

T

/

5

/

12

-

D

-

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".

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.

H Option:

Wide Input Voltage. Units will operate from 90 to 126.5 Vac with 20% derating in output power. 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 "D" 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 "D" in the model number.

T Option:

Wider Operating Temperature. -20°C to +71°C. Pard (noise and ripple) specification increases to 200 mV P-P. To order, add "T" 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.

-3 Option:

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

-7 Option:

50/50 Power Split. Provides a 50/50 power split between main and auxiliary outputs (50% main output, 25% each,, auxiliary outputs). Load regulation of auxiliary outputs will be 2 times greater than standard model. To order, add "-7" to the end of the model number.


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