Page 2 - MPD - MA300MHI Datasheet
P. 2



Model Selection Guide www.micropowerdirect.com
Input Output Capacitive Fuse Rating
Model Effi ciency
Number Voltage (VDC) Current (mA) Voltage Current Current Load (%, Typ) Slow-Blow
Nominal Range Full-Load No-Load (VDC) (mA, Max) (mA, Min) (µF, Max) (mA)
MA305MS-05HI 5.0 4.5 - 5.5 1,000 130 5.0 600 0.0 470 60 2,000
MA305MS-12HI 5.0 4.5 - 5.5 960 130 12.0 250 0.0 470 62 2,000
MA305MS-15HI 5.0 4.5 - 5.5 960 130 15.0 200 0.0 470 62 2,000
MA305MD-12HI 5.0 4.5 - 5.5 1,000 130 ±12.0 ±125 ±0.0 220 60 2,000
MA305MD-15HI 5.0 4.5 - 5.5 1,000 130 ±15.0 ±100 ±0.0 220 60 2,000
MA312MS-05HI 12 10.8 - 13.2 420 60 5.0 600 0.0 470 60 1,000
MA312MS-12HI 12 10.8 - 13.2 400 60 12.0 250 0.0 470 62 1,000
MA312MS-15HI 12 10.8 - 13.2 400 60 15.0 200 0.0 470 62 1,000
MA312MD-12HI 12 10.8 - 13.2 420 60 ±12.0 ±125 ±0.0 220 60 1,000
MA312MD-15HI 12 10.8 - 13.2 420 60 ±15.0 ±100 ±0.0 220 60 1,000
MA324MS-05HI 24 21.6 - 26.4 210 40 5.0 600 0.0 470 60 500
MA324MS-12HI 24 21.6 - 26.4 195 40 12.0 250 0.0 470 64 500
MA324MS-15HI 24 21.6 - 26.4 195 40 15.0 200 0.0 470 64 500
MA324MD-12HI 24 21.6 - 26.4 210 40 ±12.0 ±125 ±0.0 220 60 500
MA324MD-15HI 24 21.6 - 26.4 210 40 ±15.0 ±100 ±0.0 220 60 500
Notes: Derating Curve
1. The specifi ed maximum capacitive load is for each output.
2. When measuring output ripple, it is recommended that an external 0.33 µF ceramic capacitor
be placed from the +VOUT pin to the -VOUT pin for single output units and from each output to
common for dual output units. For noise sensitive applications, the use of 1.5 µF capacitors
will reduce the output ripple.
3. Dual output units may be connected to provide a 24 VDC or 30 VDC output. To do this, con-
nect the load across the positive (+VOUT) and negative (-VOUT) outputs and fl oat the output
common.
4. The converter should be connected to a low ac-impedance source. An input source with a
highly inductive impedance may affect the stability of the converter. In applications where
the converter output loading is high and input power is supplied over long lines, it may be
necessary to use a capacitor on the input to insure start-up.
In this case, it is recommended that a low ESR (ESR <1.0 at 100 kHz) capacitor be mounted
close to the converter. For 5V input units a 4.7 µF is recommended, for 12V and 24V units
a 2.2 µF.
5. It is recommended that a fuse be used on the input of a power supply for protection. See
the table above for the correct rating.
Mechanical Dimensions






Pin Connections
Pin Single Dual Pin Single Dual
1+VIN +VIN 13 +VOUT -VOUT
2+VIN +VIN 15 No Pin +VOUT
10 No Pin Common 23 -VIN -VIN
11 No Pin Common 24 -VIN -VIN
12 -VOUT No Pin


















MicroPower Direct Mechanical Notes:
• All dimensions are typical in inch es (mm)
• Tolerance x.xx = ±0.01 (±0.25)
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