Embedded Power for
Business-Critical Continuity
AEH40 Series
132 Watts / 48 Watts
Total Power:
132 Watts (for the 3.3 Vo device)
48 Watts (for the 1.2 Vo device)
Input Voltage: 36 - 75 VDC
# of Outputs: Single
Rev. 01.05.07
AEH40Series
1 of 2
Electrical Specifications
Input
Input Range
Input Current (max.)
Input Reflected-ripple
Current
Output
36 to 75 VDC
6.2 A (for the 3.3 Vo device)
2.0 A (for the 1.2 Vo device)
20 mAp-p 5Hz to 20MHz: 12uH source impedance, TA=25
º
C
Special Features
• Delivers up to 40A output
current
• Basic Isolation
• Ultra HIgh Efficiency
• Improved thermal perform-
ance: 40A at 70
º
C at 1.5ms-1
(300LFM)
• High power density
• Low output noise
• Industry standard pinout
• 2:1 wide input voltage
• CNT function
• Remote sense
• Trim function: +10% / -20%
• Input under-voltage lockout
• Output over-current lockout
• Output over-voltage protec-
tion
• Over temperature protection
• RoHS Compliant
Output
Output voltage
Output Current
Efficiency
Line output regulation
3.25 to 3.35 Vdc (3.3 Vdc Nominal)
1.18 to 1.22 Vdc (1.2 Vdc Nominal)
0 to 40 A
>87% (89% typ) : 3.3 Vo device
>80% (81% typ) : 1.2 Vo device
10 MV max. (5MV Nominal) : 3.3 Vo device
5 MV max. (3MV Nominal) : 1.2 Vo device
Load Output Regulation 20 mV max (10 mV Typ) : 3.3 Vo device
18 mV max (5 mV Typ) : 1.2 Vo device
Switching Frequency
280KHz for the 3.3 Vo
220KHz for the 1.2 Vo
Isolation
I/O isolation
Isolation Capacitance
Isolation Resistance
1500 Vdc
1000 pF
>10 Mohms
Environmental Specifications
Operating ambient temperature range
-40
º
C to 70
º
C
-55
º
C to 125
º
C
0.02 %Vo/
ºC
2 Million hours (typ.); Io=Io-max; Tc=25
ºC
Safety
UL cUL
TUV
Storage temperature
Temperature Regulation
Calculated MTBF
m
Embedded Power for
Business-Critical Continuity
Ordering Information
Vin (V)
36-75
36-75
36-75
36-75
Vout (V)
3.3
3.3
1.2
1.2
Iout (A)
40
40
40
40
Effy
89%
89%
81%
81%
Model Number
AEH40F48N
AEH40F48
AEH40K48N
AEH40K48
Astec Power
5810 Van Allen Way
Carlsbad, CA 92008
USA
Telephone: +1 760 930 4600
Facsimile: +1 760 930 0698
Technical Support: +1 888 41 ASTEC
or +1 407 241 2752
Waterfront Business Park
Merry Hill, Dudley
West Midlands, DY5 1LX
United Kingdom
Telephone: +44 (0) 1384 842 211
Facsimile: +44 (0) 1384 843 355
Units 2111-2116, Level 21
Tower 1, Metroplaza
223, Hing Fong Road
Kwai Fong, New Territories
Hong Kong
Telephone: +852 2437 9662
Facsimile: +852 2402 4426
Rev. 01.05.07
AEH40Series
2 of 2
Mechanical Drawing
For global contact, visit:
www.astecpower.com
technicalsupport@astec.com
While every precaution has been taken to ensure
accuracy and completeness in this literature, Astec
Power assumes no responsibility, and disclaims
all liability for damages resulting from use of this
information or for any errors or omissions.
Printed in US A
Emerson Network Power.
The global leader in enabling
business-critical continuity.
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