Astec Industry Standard
20 Watts
AA20C
Total Power:
Input Voltages:
No. of Outputs:
20 Watts
48V
Single
Electrical Specs
Input
Input range
Input capacitance
No load input power
Efficiency
36 to 75 VDC
1.6µF typ (48 models)
150mW max
84% typical (5V)
Output
Voltage tolerance
Overall regulation
Noise/ripple
Short circuit protection
Overvoltage protection
Transient response
±1.0%
±2% max
1% (mV P-P)
Continuous Power Cycle
Zener Clamp (125% of nom)
1 msec typical (50% step load
change to within 1%Vo)
±0.02 °C
400kHz
Special Features
Temperature Coefficient
•
•
•
•
•
•
20 W, Single output
2:1 Input range
Unencapsulated package
1.6" x 2.0" x 0.38 case
Replaces AA20B series
Industry standard package
Switching frequency
Isolation
I/O isolation
Isolation resistance
Isolation capacitance
1500 VDC
1 x 109 (Ohms)
220pF
Environmental
Operating base temperature range:
-40°C to +105°C (full load, no derating)
Storage temperature: -55°C to +125°C
Humidity: 5% to 95% (non-condensing)
EMI RFI Shielding: Six sided (except 033-M1)
MTBF: 361,000 hours (MIL HDBK-217)
Safety
UL
CSA
TUV
UL1950 Recognition
CSA22.2-950 Recognition
EN60950 Recognition
28
America’s (USA): 1-888-41-ASTEC
Europe (UK): 44 (1384) 842-211
Asia (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
Ordering Information
Input
Voltage
36-75 V
36-75 V
36-75 V
Output
Voltage
3.3V @ 6.0 A
5.0V @ 4.0 A
12V @ 2.0 A
Efficiency
79%
84%
87%
Model Number
AA20C-048L-0335-M1
AA20C-048L-050S
AA20C-048L-120S
NOTES:
Enable Function
"1" = negative logic enable (std, without "1 or 4" = no enable)
"4" = positive logic enable (std, without "1 or 4" = no enable)
Trim Feature
"9" = Trim feature (std, without "9" no Trim)
Pin Assignments
Single Output
1.
2.
3.
4.
5.
6.
7.
8.
Note:
+Vin
-Vin
No pin
Enable
No pin
Output 1
COM
Trim
0.40
(10.15)
0.15 MIN
(3.81)
0.40 (1.01)
DIA TYP
2.00
(50.80)
1.80
(45.72)
0.10 (2.54)
Pins 0.040 in Dia x 0.15 in min
Warranty: 1 yr
0.70
(17.75)
0.20
(5.08)
5
.40
(10.16
6
SINGLE OUTPUT
1.60
(40.64)
1
0.20
(5.08)
0.40
(10.16)
2
3
4
.40
(10.16
7
6
TRIM DOWN
8
8
7
TRIM UP
8
7
6
ADJ.
TRIM
.40
(10.16
8
BOTTOM VIEW
ALL DIMENSIONS ARE IN INCHES (mm)
Case Material: Metal base/cover
Weight: 2.0 oz./56 grams.
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