1. Scope: This specification defines the performance characteristics of this series one output level regulated
power supplies. It is a DC to DC converter with a very wide input range from 18 to 150VDC and
providing with non-polarize input to protect the supply from an accident connection.
2. Input requirements
2.1 Input Frequency: DC
2.2 Input Voltage: 18 – 150VDC
2.3 Input Current: 0.8A at 18VDC
3. Output Requirements
3.1 Output Rating: measured at output power connector.
3.2.1 Transient Response:
Output voltage returns to within 1% in less than 2.5mS for a 50% load change and the peak transient
does not excess 5%.
3.2.2 Overshoot: Turn-on and turn-off overshoot should not exceed 5% over nominal voltage.
3.2.3 Efficiency: Typically 57%, 63% and 67% at nominal 24, 48 and 125 VDC input respectively with
10W load.
3.2.4 Turn On Delay: 1 second maximum at 85 VDC
4. Protection Circuit
4.1 Input Circuit
A protected fuse must be inserted. The fuse shall be blown only by an internal fault of the power suppl
Any overload or short at output, either momentarily or permanently, shall not blow the input fuse, but n
create a fire or shock hazard.
4.2 Output Circuit
4.2.1 Over-Current Protection:
. Current limits at 110-135% of the rated output current and recovers automatically.
4.2.2 Short Circuit Protection:
Short circuit can be continuous without damage and recovers automatically.
4.2.3 Over-Voltage protection: Output is protected against over-voltage. Unit latching down will occ
when output exceed 130%, and recycle DC input to reset.
5. Mechanical Requirement
5.1 Open Frame: 5L-2.5W-1.38H in inch, Enclosed: 5.5L-3W-1.75 in inch.
5.2 Input Connector:
Open Frame: Mating Molex Part No. 09-91-0500 or equivalent (5 pin, 3 used), PCB is Labeled IN1
IN2 are non-polarity DC input, FG = Ground
Enclosed: Howder Terminal block Part No. FTP-705-3P (3 pin), M3 screw, 7.62mm center.
5.3 Output Connector:
Open Frame: Mating Molex Part No. 09-91-0500 (5 pin)
Enclosed: 72? (1,829mm), +/-5% long shielded cable. (See Mechanical drawing for detail).
Output Pin Assignment: See Mechanical drawing for detail.
5.4 Weight: Maximum weight is 300g
6. Environment Requirements
6.1 Operating Temperature: O to 50 degrees C
6.2 Storage Temperature: -20 to 85 degrees C
6.3 Operating Humidity: 5% to 90% RH, Non-condensing
6.4 Storage Humidity: 5% to 95% RH, Non-condensing
6.5 Vibration: Frequency 5 to 50 Hz, Acceleration +/-7.35 M/(SxS) on X,Y and Z Axis
7. Warranty and MTBF
7.1 Warranty: 2 years.
7.2 MTBF: 100000 Hrs (according to MIL-HBK-217F) at 30?
8. Cooling: Convection Cooling
9. Burn in
9.1 Input voltage: Applying 48VDC for input voltage.
9.2 Burn in condition: Applying full load for this product in 45 +/- 5 degree C burn-in room for 1 hour.
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