Embedded Power for
Business-Critical Continuity
ALQ/AEQ20B48
20 Amps
Total Power:
240 Watts
Input Voltage: 48V
# of Outputs: 1
Rev. 01.17.07
ALQ/AEQ20B48
1 of 2
Electrical Specifications
Input
Input range
Input surge
Efficiency
36V to 75VDC
100V / 100ms
93% (typical)
± 0.1% (typical)
± 0.1% (typical)
60mV (typical)
5% deviation
(50% to 75% step load)
<250μs setting time
130% Io (autorecovery)
120% Vo (autorecovery)
150kHz
2250 Vdc
Positive or negative logic options; TTL compatible
Output
Special Features
• Quarter brick industry stan-
dard outline
• Baseplate or openframe low
profile construction
• Industry Standard features :
Input UVLO with
hysteresis, Enable, OVP, OCP,
OTP, output
Voltage Trim, Differential
Remote Sense
• Fixed switching frequency for
EMI predictability
• Prebias startup capable
• RoHS compliant
• Meets Basic Insulation
• EU directive 2002/95/EC
compliant for RoHS
Line regulation
Load regulation
Noise/ripple
1
Transient response
Over current protection
Over voltage protection
Switching frequency
Isolation voltage
Over temperature protection 115°C average PCB temperature (autorecovery)
Control
Enable on/off
Environmental Specifications
Operating ambient air temperature range
Storage temperature
MTBF
-40°C to +85°C ambient
-40°C to +125°C
>1 million hours
Safety
UL, cUL 60950
TUV
EN60950
Embedded Power for
Business-Critical Continuity
Ordering Information
Input
Voltage
36 - 75V
Output Voltage
12V
Output Current
20A
Efficiency
2
93% Typ
Model Number
ALQ20B48(N)-(6)L
Astec Power
Rev. 01.17.07
ALQ/AEQ20B48
2 of 2
20A
93% Typ
AEQ20B48(N)-(6)L
36 - 75V 12V
Options:
(N) : "N" = designates Negative Logic Enable (default is Positive Enable with no suffix “N” required)
(6) : “-6” = 3.7mm nominal pin length (default is 5mm nominal pin length with no suffix “-6” required)
Notes:
ALQ : =
openframe constructioin
AEQ : =
baseplate contruction
L
:
=
RoHS Compliant (RoHS 6)
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
Pin Assignments
Single Output
1. +Vin
2. Enable on/off
3. -Vin
4. -Vout
5. - Sense
6. Trim
7. + Sense
8. +Vout
Notes:
1. Measured at 20 MHz bandwidth with external
10 uF tant. capacitor in parallel with 1 uF
ceramic capacitor placed across +Vout and -
Vout, T
A
= 25ºC.
2. Efficiency measurements taken at nominal line
V
IN
= 48V input, Io = 100% load, T
A
= 25ºC.
3. All specifications are considered typical values
unless otherwise noted and are subjuect to
change without notice.
4. 2 year warranty.
5 Consult factory for further product technical
details.
Mechanical Drawing
OPENFRAME
PIN Length (inch [mm])
Std : 0.197 [5.0]
“-6” : 0.146 [3.7]
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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* This is a Preliminary Data Sheet. Astec
Power reserves the right to make changes
to the information contained herein with-
out notice and assumes no liability as a
result of its use or application.
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©2007 Emerson Electric Co.