2 0 W U l t r a mi ni ature Op en Fr ame S witc hing Power Suppli es
Universal 85-265VAC Input
High Efficiency
Regulated Outputs
3000V Isolation
Single Outputs
LFM20
series
UL60950 & EN60950 Approved
Optional 0.156” Spaced Connectors,
2.75”W x 1.89”L x 0.91”H
or PCB Mount Configuration
Model Number
Output Voltage
Output Amps(max)
Ripple pk-pk
Efficiency
0.156” SPACED CONNECTORS
LFM20-3.3
3.3 VDC
LFM20-5
5 VDC
LFM20-9
9 VDC
LFM20-12
12 VDC
LFM20-15
15VDC
LFM20-24
24VDC
PCB MOUNT (Pins)
LFM20-3.3P
LFM20-5P
LFM20-9P
LFM20-12P
LFM20-15P
LFM20-24P
4.4A
4.4A
2.45A
1.8A
1.4A
0.92A
50mV
1%
1%
1%
1%
1%
70%
73%
77%
80%
80%
82%
3.3 VDC
5 VDC
9 VDC
12 VDC
15VDC
24VDC
4.4A
4.4A
2.45A
1.8A
1.4A
0.92A
50mV
1%
1%
1%
1%
1%
70%
73%
77%
80%
80%
82%
Order On-Line!
WWW.ASTRODYNE.COM
astrodyne.com
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082
Fax: 508-823-8181
2 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:
Leakage Current
85-265 VAC
47-63 Hz
20A@100V, 40A@200V Input
*
3.5mA max.
LFM20
series
MECHANICAL SPECIFICATIONS
0.80
(20.32)
1.0(25.4)
OUTPUT SPECIFICATIONS
Voltage and Current
Load Regulation (10%-FL)
Line Regulation (LL-HL, FL)
Voltage Accuracy
Temperature Coefficient
Ripple/Noise
Short Circuit Protection
Hold Up Time
See Selection Chart
+/- 1%
+/- 0.5%
+/- 1%
+/-0.05%/°C
See Selection Chart (NOTE 1)
Continuous
16 mS, typ @ 115VAC
0.15(3.8)
0.23(6.05) 0.13(3.30)(4PL)
0.070(1.78)
0.040(1.02)
0.24(6.12)
0.62(15.75)
0.31(7.9)
ACL
1.70(43.18)
2.00(50.8)
ACN
+Vout
0.15(3.96)
-Vout
0.150(3.81)
0.150(3.81)
3.2(81.28)
3.50(88.9)
VR
GENERAL SPECIFICATIONS
NOTES:
Input-Out Isolation
Efficiency
Safety
3000VAC
See Selection Chart
UL60950, EN60950
1) Add a 0.1uF ceramic capacitor and a 10uF E.L.capacitor to output for Ripple
& Noise (R & N) measuring @ 20MHz BW.
2) Input Connector Mates with Molex Housing 09-50-3031 and Molex 2878
Series Crimp Terminal
3) Output Connector Mates with Molex Housing 09-50-3041 and Molex 2878
Series Crimp Terminal
PHYSICAL SPECIFICATIONS
Size
0.156 Connectors
PCB Pins
Construction
Weight
0.156 Connectors
PCB Pins
3.5” x 2.0” x 0.80” (NOTES 2 & 3)
3.5” x 2.0” x 1.0”
Open Frame
3.1 oz (88g)
3.3 oz (93g)
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature
Cooling
Storage Temperature
0 to +45°C
Free Air Convection
-20 to +85°C
*
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.
All specifications are typical at nominal input, full load, and 25DegC unless
otherwise 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.
WWW.ASTRODYNE.COM
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082
Fax: 508-823-8181
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