Is o la t ed a nd Re gu lated 2 0 WATT Mod ular DC/DC Conv er ters
Wide 4:1 Input Range
1500V Isolation
Short Circuit Protection
Remote On/Off Control
High Efficiency
Input PI Filter
Unit measures 1.6”W x 2”L x 0.45”H
ASD20
series
Model Number
SINGLE OUTPUT
ASD20-12S3
ASD20-48S3
ASD20-12S5
ASD20-48S5
ASD20-12S12
ASD20-48S12
ASD20-12S15
ASD20-48S15
DUAL OUTPUT
ASD20-12D5
ASD20-48D5
ASD20-12D12
ASD20-48D12
ASD20-12D15
ASD20-48D15
Output Voltage
Output Amps
Input Range
Efficiency
3.3 VDC
5 VDC
12 VDC
15 VDC
4
4
4
4
1.67
1.67
1.33
1.33
+/-2.0
+/-2.0
+/-833
+/-833
+/-666
+/-666
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
9-36 VDC
18-72 VDC
78.00%
78.00%
81.00%
82.00%
83.00%
84.00%
83.00%
84.00%
83.00%
84.00%
83.00%
84.00%
83.00%
84.00%
+/-5 VDC
+/-12 VDC
+/-15 VDC
Order On-Line!
WWW.ASTRODYNE.COM
astrodyne.com
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082
Fax: 508-823-8181
Is o la t ed a nd Re gu lated 2 0 WATT Mod ular DC/DC Conv er ters
INPUT SPECIFICATIONS
Input Voltage Ranges:
Input Filter
Remote On/Off Control
Logic Compatibility
EC-On
EC-Off
Control Common
12 VDC Nominal
24 VDC Nominal
PI Type
9-36 VDC
18-72 VDC
ASD20
1500VDC
10-8nth Ohm min.
300Khz
UL60950
Six Sided Shielding
MIL-HDBK-217F
Ground Benign, 25°C
880,584 Hrs.
series
GENERAL SPECIFICATIONS
Input-Output Isolation
Isolation Resistance
Switching Frequency
Safety
RFI
MTBF
CMOS or Open Collector TTL
>+5.5VDC or Open Circuit
<1.8VDC
Ref. to - Input
OUTPUT SPECIFICATIONS
Voltage and Current
Load Regulation (25% to FL)
Line Regulation
Temperature Coefficient
Ripple/Noise
Voltage Accuracy
See Selection Chart
+/-0.5%
(HL-LL)
+/-0.5%
+/-0.02%/°C
RMS
20mV max.
P-P
75mVp-p max.
Single O/P
+/-1%
Dual +O/P
+/-1%
Dual -O/P
+/-2%
+/-1%
Continuous
See Selection Chart
<500uS
<500uS
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature
Derate Above 60°C
Case Temperature
Storage Temperature
-25 to +71°C w. Derate
Linearly to Zero Power +100°C
100°C max.
-55 to +105°C
*
PHYSICAL SPECIFICATIONS
Case Material
Construction
Weight
Dimensions
Black coated Copper
w. Non-conductive base
Fully Encapsulated
2 oz, (57g)
1.6” x 2” x 0.45”
Voltage Balance (Dual FL)
Short Circuit Protection
Efficiency
Transient Response
Single 25% Load Change
Dual Full Load to 1/2 Load
Trim
+/-10%
All specifications are typical at nominal input, full load, and 25°C unless other-
wise noted
*
These are stress ratings. Exposure of the devices to any of these conditions
may adversely affect long term reliability. Proper operation under conditions
other than the standard operating conditions is neither warranteed nor implied.
Astrodyne products are not authorized or warranteed for use
as critical components in life support systems, equipment used
in hazardous environments, nuclear controls systems, or other
mission-critical applications.
WWW.ASTRODYNE.COM
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082
Fax: 508-823-8181
Is o la t ed a nd Re gu lated 2 0 WATT Mod ular DC/DC Conv er ters
MECHANICAL DIMENSIONS
Pin #
1
3
4
5
6
7
8
ASD20
Single Outputs
On/Off Control
- Input
+ Input
Trim
- Vout
+ Vout
No Pin
series
Dual Outputs
On/Off Control
- Input
+ Input
Trim
- Vout
Common
+ Vout
All Dimensions In Inches (mm)
Tolerance .xx = +/-0.04, .xxx = +/- 0.010
WWW.ASTRODYNE.COM
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082
Fax: 508-823-8181
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