1 0 W U l t r a mi ni ature Op en Fr ame S witc hing Power Suppli es
INPUT SPECIFICATIONS
Input Voltage Range
Frequency Range
Inrush Current, typ:
90-264 VAC
47-63 Hz
20Amps @115 Volts(DC)
40Amps @230 Volts(DC)
Efficiency
Switching Frequency
Safety
EMC
EFM10
Single/Dual 75% typ
Triple 70%
100Khz, (fixed, typical)
UL60950-1, EN60950-1
EN55022
series
PHYSICAL SPECIFICATIONS
OUTPUT SPECIFICATIONS
Voltage and Current (Note 5)
See Selection Chart
Load Regulation (20%-FL)(Note 6)Singles: ± 3%,
Duals: ± 3% (EFM-0108: 0.5/3%)
Triple: 0.2 / ±0.3%
Line Regulation, typ (Note 7)
Singles ± 0.1~1%
Duals ± 0.3~1%
(except EFM-0108: 0.5/ 0.5%)
Triple: 0.3 / ±0.1%
Cross Regulation (Note 10)
Duals 2% (EFM-0108: 0.5/3%)
Triple: NA/ ±0.1%
Preset Accuracy (Note 8)
Single/Duals 1%
(except EFM-0108: 2 / 5%)
Triple: 1 / ±5%
DC Voltage Adjust (typ)
± 6% of FS (Primary)
Temperature Coefficient
±0.03%/°C
Ripple/Noise, typ (Note 1, 9)
Single/Dual: 100mVpk-pk (except
EFM-0108: 50/50mVpk-pk)
Triple: 50 / ±75mVpk-pk
Over Voltage Protection
Clamp
Over Temp. Protection
Latching, recov after cooling and
power restored
Short Circuit Protection (Note 2) Continuous, self-recovering
Hold Up Time
30 mS, typ
DC Output Power
10 Watts, max
Size
Construction
Weight
1.66” x 2.46” x 0.91”
Open Frame
1.6oz (44g)
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature (Note 4)
Storage Temperature
Relative Humidity
MTBF
-0 to +40°C (See Derate)
-25 to +71°C
*
0 to + 95%, non-cond
*
(Mil Std 217, 25°C)
575,000 Hrs
NOTES
1. Ripple and Noise depend upon output voltage as specified per par-
ticular model.
2. Short Curcuit Protection is self-recovering when overcurrent condition
is removed.
3.Isolation for up to 1 minute duration.
4. Specified for free-air convection cooling.
5. Minimum load is NOT required for proper operation. However, auxil-
iary outputs should be reduced as a function of primary output minimum
load or load regulation will be higher.
6. Load regulation measured from 20% to full load.
7. Line regulation measured from 90VAC to 264VAC.
8. Preset accuracy measured at nominal load, 120VAC input.
9. O/P noise measured directly at pins/terminals at nom. load, 0.1uF
bypass, pk-pk @20MHz bandwidth.
10.Cross Reg-Duals: Measured at nom. load with the other output varied
between 60% and 100% inom.
GENERAL SPECIFICATIONS
Isolation (Note 3)
3KVAC Input-Output
2500VAC Inpout-Ground
1000VAC Output-Ground
All specifications are typical at nominal input, full load, and 25°C unless other-
wise noted
*
These are stress ratings. Exposure of the devices to any of these conditions
may adversely affect long term reliability. Proper operation under conditions
other than the standard operating conditions is neither warranteed nor implied.
Astrodyne products are not authorized or warranteed for use
as critical components in life support systems, equipment used
in hazardous environments, nuclear controls systems, or other
mission-critical applications.
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