Special Features
Electrical Specs
40 Watts
LPT40 Series
• Universal input
• 3” x 5” footprint
• Remote sense on main output
• Built-in EMI filter
• Low output ripple
• Adjustable main output
• Overvoltage protection
• Overload protection
• 110 KHz switching frequency
• LPX40 enclosure kit available
Operating temperature: 0° to 50°C ambient;
derate each output at 2.5% per degree from 50° to
70°C
Electromagnetic susceptibility: designed to meet IEC
801, -2, -3, -4, -5, -6, Level 3
Humidity: Operating; non-condensing
5% to 95%
Vibration: Three orthogonal axes, sweep at
1 oct/min, 5 min. dwell at four major resonances
0.75 G peak 5 Hz to 500 Hz, operational
Storage temperature: -40° to 85°C
Temperature coefficient: ±.04% per °C
MTBF demonstrated: >550,000 hours at full load
and 25°C ambient condition
Input
Input range 85-264 VAC
120-300 VDC
Frequency 47-440 Hz
Inrush current <18 A peak @ 115 VAC;
<36 A peak @ 230 VAC,
cold start @ 25°C
Input current 1 A max. (RMS) @ 115 VAC
Efficiency 70% typical at full load (60% for LPT41)
EMI filter FCC Class B conducted
CISPR 22 Class B conducted
EN55022 Class B conducted
VDE 0878 PT3 Class B conducted
Safety ground
leakage current <0.5 mA @ 50/60 Hz, 264 VAC input
Output
Maximum power 40 W for convection, (LPT41, 25W);
55 W with 30 CFM forced air
(LPT41, 41W)
Adjustment range -5, +10% minimum
Cross regulation ±2% on output 1; ±5% on outputs 2, 3
Hold-up time 20 ms @ 40 W load, 115 VAC
nominal line
Overload protection Short circuit protection on all outputs.
Case overload protected @ 110-145%
above peak rating
Overvoltage protection 5.7 to 6.7 VDC on main output
LPT41: 3.6 to 4.6 VDC
Remote sense Compensates for 0.5 V lead drop min.
Will operate without remote sense
connected. Reverse connection
protected.
VDE 0805/EN60950 (IEC950) 11774-3336-1241
(LC# 84936)
UL UL1950 E132002
CSA CSA 22.2-234 Level 3 LR53982C
NEMKO EN 60950/EMKO-TUE P94100374
(74-sec) 203
BABT EN60950/BS7002 PS/604782
CB Certificate and report 1118,1122,1123,1124
CE Mark (LVD)
Environmental
Safety
Total Power: 40-55 Watts
Input Voltage: 85-264 VAC
120-300 VDC
# of Outputs: Triple
America’s (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662
84
ASIA
Units 2111-2116, Level 21
Tower1, Metroplaza
223, Hing Fong Road
Fwai Fong, New Territories
Hong Kong
Telephone: 852-2437-9662
Facsimile: 852-2402-4426
EUROPE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44(1384) 843-355
AMERICAS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
Ordering Information
Model Output Minimum Maximum Load with Maximum Load with Peak Regulation2Ripple
Number Voltage Load Convection Cooling 30 CFM Forced Air Load1P/P (PARD)3
LPT41 +3.3 V 0.5 A 4 A 7 A 7 A ±2% 50 mV
+5 V 0 1.5 A 2.0 A 2.5 A ±2% 50 mV
+12 V 0 0.5 A 0.7 A 0.7 A ±5% 120 mV
LPT42 +5 V 0.4 A 4 A 5 A 7 A ±2% 50 mV
+12 V 0.2 A 2 A 2.5 A 4 A ±5% 120 mV
-12 V 0 A 0.5 A 0.7 A 1 A ±5% 120 mV
LPT43 +5 V 0.5 A 6 A 8 A 9 A ±2% 50 mV
+12 V 0 A 0.5 A 0.7 A 1 A ±5% 120 mV
-12 V 0 A 0.5 A 0.7 A 1 A ±5% 120 mV
LPT44 +5 V 0.4 A 4 A 5 A 7 A ±2% 50 mV
+12 V 0.2 A 2 A 2.5 A 4 A ±5% 120 mV
-5 V 0 A 0.5 A 0.7 A 1 A ±5% 50 mV
LPT45 +5 V 0.4 A 4 A 5 A 7 A ±2% 50 mV
+15 V 0.2 A 2 A 2.5 A 3 A ±5% 150 mV
-15 V 0 A 0.5 A 0.7 A 1 A ±5% 150 mV
LPT46 +5 V 0.4 A 4 A 5 A 6 A ±2% 50 mV
+24 V 0.1 A 1.0 A 1.5 A 2 A ±7% 240 mV
+12 V 0 A 0.5 A 0.7 A 1 A ±5% 120 mV
LPT47 +5 V 0.4 A 4 A 5 A 6 A ±2% 50 mV
+24 V 0.2 A 1.0 A 1.5 A 2 A ±7% 240 mV
-12 V 0 A 0.5 A 0.7 A 1 A ±5% 120 mV
LPT48 +5 V 0.4 A 4 A 5 A 6 A ±2% 50 mV
+24 V 0.1 A 1.0 A 1.5 A 2 A ±7% 240 mV
-5 V 0 A 0.5 A 0.7 A 1 A ±5% 50 mV
1. Peak current lasting <30 seconds with a maximum 10% duty cycle.
2. At 25°C including initial tolerance, line voltage, load currents and output voltages adjusted to factory settings.
3. Peak-to-peak with 20 MHz bandwidth and 10 µF in parallel with a 0.1 µF capacitor at rated line voltage and load ranges.
4. Minimum Loads are required.
Connector LPT41 LPT42 LPT43 LPT44 LPT45 LPT46 LPT47 LPT48
SK1-1 Neutral Neutral Neutral Neutral Neutral Neutral Neutral Neutral
SK1-3 Line Line Line Line Line Line Line Line
SK2-1 5 V +12 V +12 V +12 V +15 V +24 V +24 V +24 V
SK2-2 3.3 V +5 V +5 V +5 V +5 V +5 V +5 V +5 V
SK2-3 3.3 V +5 V +5 V +5 V +5 V +5 V +5 V +5 V
SK2-4 Common Common Common Common Common Common Common Common
SK2-5 Common Common Common Common Common Common Common Common
SK2-6 12 V -12 V -12 V -5 V -15 V +12 V -12 V -5 V
SK201-1 +Sense +Sense +Sense +Sense +Sense +Sense +Sense +Sense
SK201-2 -Sense -Sense -Sense -Sense -Sense -Sense -Sense -Sense
Mating Connectors
AC Input: Molex 09-50-8031 (USA)
09-91-0300 (UK)
PINS: 08-58-0111
DC Outputs: Molex 09-50-8061 (USA)
09-91-0600 (UK)
PINS: 08-58-0111
Remote Sense: Molex 22-01-2025
PINS: 08-50-0114
Astec Connector Kit #70-841-006,
includes all of the above.
3.00"
(76.2)
2.55"
(64.8)
0.22"
(5.6)
1.14"
(29)
0.12"
(3)
4.55"
(115.6)
5.00"
(127)
SK 1
SK 2
1
2
3
4
5
6
0.15" (4)
DIA (4 places)
GND
1
3
N
L
M1 M2
_+
Remote Sense
Connector
SK201
Voltage
Adj. Pot
Pin Assignments
Notes:
1. Specifications subject to change without notice.
2. All dimensions in inches (mm), tolerance is ±.02”.
3. Mounting holes M1 and M2 should be grounded for
EMI purposes.
4. Mounting hole M1 is safety ground connection.
5. Specifications are for convection rating at factory
settings at 115 VAC input, 25°C unless otherwise stated.
6. Warranty: 1 year
7. Weight: 0.5 lb. / 0.23 kg
Power Derating Curve
Output
Power
(Watts)
0°C
10W
20W
30W
40W
10°C20°C30°C40°C50°C60°C70°C
TA – Ambient Temperature – °C
0W
Natural
Convection
Cooling 20W
27.5W
55W
30 CFM Forced Air Cooling
LPT40 Series
85
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