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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 1.6F 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: -40C to +105C (full load, no derating) Storage temperature: -55C to +125C 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
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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
AA20C
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) 0.20 (5.08) 5
0.10 (2.54)
Pins 0.040 in Dia x 0.15 in min Warranty: 1 yr
0.70 (17.75)
.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 .40 (10.16) 8
6 TRIM DOWN 8 8 7 6 ADJ. TRIM
Astec Industry Standard
TRIM UP 8
7
BOTTOM VIEW ALL DIMENSIONS ARE IN INCHES (mm)
Case Material: Metal base/cover Weight: 2.0 oz./56 grams.
www.astec.com
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