Astec Industry Standard
300W
AEH25
Ultra High Efficiency
Total Power: Input Voltages: No. of Outputs:
300 Watts (12V @ 25A) 48 V Single
Electrical Specs
Input
Input range Input Surge Efficiency 36-75 VDC 100V / 100ms 93% @ 12V (Typical)
Control
Enable TTL compatible (positive or negative enable logic control options)
Output
Regulation (Line, Load, Temp) 1 million hours
Safety
UL, cUL 60950 Recognized TUV EN60950 Licensed
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North America (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211Asia (HK): 852-2437-9662
AMERICAS 5810 Van Allen Way Carlsbad, CA 92008 Telephone: 760-930-4600 Facsimile: 760-930-0698
EUROPE Astec House, Waterfront Business Park Merry Hill, Dudley West Midlands, DY5 1LX, UK Telephone: 44 (1384) 842-211 Facsimile: 44 (1384) 843-355
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
AEH25B48
Ordering Information
Input Voltage 36V to 75V OPTION: Output Voltage / Current 12V @ 25A suffix “N” non suffix “N” suffix “-6” suffix “-5” default pin length suffix “T” = = = = = = Efficiency Model Number
93%
AEH25B48(N)-(5)(6)(T)
Negative Enable Positive Enable (default) 3.7mm pin length 4.5mm pin length 5mm nominal pin length “Tuned” version for slow start up time
Typical efficiency measurement taken at nominal line, full load, 25°C ambient.
Pin Assignments
Single Output 1. 2. 3. 4. 5. 6. 7. 8. 9. +Vin Enable (On/Off) Case (AEH) -Vin - Output - Sense Trim + Sense + Output
0. 20 [ 1] 5.
Notes: 1. 20 MHz BW with external 10uF/25V tantalum in parallel with 0.1uF/50V X7R ceramic capacitor placed across the output. 2. Requires a 2.2 uf, 100V film capacitor connected between +V in and -V in to meet FCC class A and ETS300-386-1 requirements for conducted noise. Consult Factory for filtering information to meet FCC class B, VDE or EIC specifications. 3. All specifications are typical at nominal line, full load, and 25°C unless otherwise noted. 4. All specifications subject to change without notice. Mechanical drawings are for reference only 5. Technical Reference Notes should be consulted for detailed information when available 6. Warranty: 1yr
* Astec reserves the right to make changes to the information contained herein without notice and assumes no liability as a result of its use or application. (REV06: JANUARY 26, 2006)
2. 30 [ 4] 58. 1. 90 [ 3] 48.
PIN LENGTH OPTION “-5”: 4.5mm nom “-6”: 3.7mm nom default is 5mm nom
M 3 X0. M OUNTI HOLE 5 NG 4 PLACES 0. 50 [ 7] 12. 0. 20 [ 2] 5.
see A
2. 0. 08Ø [ 0Ø]2 PLACES
0. 20 [ 1] 5.
+ Vi n
+ Out put
1. 0. 04Ø [ 0Ø]7 PLACES 2. 00 2. 40 [ 8] [ 0] 50. 61.
-Vi n
- put Out
0. 46 [ 8] 11.
PI SI DOW N N DE
0. 50 [ 7] 12. 1. 90 [ 3] 48. 0. 50 [ 7] 12.
SI VI DE EW
Astec Industry Standard
PI ASSI N GNM ENT
0. 90 1. 20 [ 8] 22. 1. 50 [ 4] 30. 38. 1. 90 [ 1] [ 3] 48. 4 5 3 6 7 2 9 1 0. 90 [ 9] 22. 1. 20 [ 5] 1. 30. 50 [ 2] 38.
1. 90 [ 3] 48.
PI SI UP N DE
NOTE: All dimensions are in Inches [millimeters] NOTES: Pin Placement Tolerance: ± 0.005 [0.127] ALL DI ENSI M ONS ARE I I N NCHES ( I M ETERS) M LLI Mechanical Tolerance: ± 0.002 [0.5] 0. PI PLACEM ENT TOLERANCE :± 0. N 005( 127)
M ECHANI CAL TOLERANCE ± . 002( 5) 0.
1 + Vi n 2 Enabl ( Of) e On/ f 3 CASE 4 -Vi n 5 - put Out 6Sense 7 Trm i 8 + Sense 9 + Out put
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