North America (USA): 1-888-41-ASTEC Europe (UK): 44 (1384) 842-211 Asia (HK): 852-2437-9662
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Special Features
Electrical Specs
15 Watts
AK40A
• Surface mount
• High power density 15W/Cu. in.
• Full power capability without
external heat sink
• Input differential and
common mode filtering
• Hot insertable with inrush current limit
• Ability to limit inrush current in
an external input capacitor
• Input undervoltage lockout with hysteresis
• Output overvoltage protection
• Remote shutdown
Operating ambient temperature range:
-40 to +75° C (no derating)
Cooling method: Convection
MTBF: 7.5 MHrs
Storage temperature: -55 to +125 C
UL 1950
IEC 950
CSA C22.2-9.50
CB 52719-106
Input
Input Range: 36 to 75 VDC for 48V
18 to 36 VDC for 24V
Maximum Inrush
Current Limit: 1.0 A Max.
Maximum External
Capacitor to Limit
Inrush Current to 1.0 A : 4.0mF
Low Input Shutdown: 34.0 +/- 2.0 V for 48V
17.0V +/- 1.0V for 24 V
Auto Recovery: 37.0V +/- 2.0 V for 48V
18.5V +/- 1.0 V for 24V
Hysteresis: 3 V +/- 1 V for 48V
1.5V +/- 0.5V for 24V
Efficiency: 85%
Enable: Open Circuit or up to 0.5V max.
Disable: 4V min., 75V max.
Output
Voltage Tolerance: +/- 3% for single output
+/- 5% for dual output
Noise/Ripple: 75mV rms max.
Output Voltage
Adjust Range: +/- 10% for single output
dual output non adjustable
Output Voltage
Protection Self-limiting Clamp, 140% max.
Short Circuit Protection Continuous Auto Start
Switching Frequency: 200kHz nominal
Environmental
Total Power: 15 Watts
Input Voltages: 24V, 48V
No. of Outputs: Single
Safety
Astec Conventional Power
EEUURROOPPEE
Astec House, Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX, UK
Telephone: 44 (1384) 842-211
Facsimile: 44 (1384) 843-355
AAMMEERRIICCAASS
5810 Van Allen Way
Carlsbad, CA 92008
Telephone: 760-930-4600
Facsimile: 760-930-0698
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Ordering Information
www.astec.com
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
Input Voltage Output 1 Maximum Model Number
Voltage Power
18-36 1.5V @ 4A 6W AK40A-024L-015F04SM
18-36 1.8V @ 4A 7.2W AK40A-024L-018F04SM
18-36 2.1V @ 4A 8.2W AK40A-024L-021F04SM
18-36 2.5V @ 4A 12W AK40A-024L-025F04SM
18-36 3.3V @ 4A 13.2W AK40A-024L-033F04SM
18-36 5.0V @ 3A 15W AK40A-024L-050F03SM
18-36 12V @ 1.25A 15W AK40A-024L-120F01SM
36-75 1.5V @ 4A 6W AK40A-048L-015F04SM
36-75 1.8V @ 4A 7.2W AK40A-048L-018F04SM
36-75 2.1V @ 4A 8.2W AK40A-048L-021F04SM
36-75 2.5V @ 4A 12W AK40A-048L-025F04SM
36-75 3.3V @ 4A 13.2W AK40A-048L-033F04SM
36-75 5.0V @ 3A 15W AK40A-048L-050F03SM
36-75 12V @ 1.25A 15W AK40A-048L-120F01SM
Single Output
1. +Vout
2. +Vout
3. +Vout
4. +Vout
5. -Vout
6. -Vout
7. -V out
8. -Vout
9. Reserved
10. Adjust
11. Reserved
12. Reserved
13. Reserved
14. Reserved
15. Reserved
16. Reserved
17. +Vin
18. Shutdown
19. -Vin
20. Reserved
Notes:
1. All specifications are typical at nominal input and full load
unless otherwise noted.
2. Specification subject to change without notice.
3. Mechanical drawings for reference only.
4. Minimum Load: 0.2 A (min 15%)
5. Max. Capacitive Load: 330 mF
6. Warranty: 1 yr Dimensions: Single Output: 1"W x 2"L x 0.5"H
Maximum Weight: Single Output: 20 grams
Pin Assignments
AK40A
Astec Conventional Power