
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082              Fax: 508-823-8181
WWW.ASTRODYNE.COM
5V Input 3 WATT Modular DC/DC Converters
ASD35 
series
INPUT SPECIFICATIONS 
Input Voltage Nominal 
Input Voltage Range: 
Input Filter 
5 VDC 
4.5-6.0 VDC 
PI Type 
OUTPUT SPECIFICATIONS 
Voltage and Current 
Load Regulation 
Line Regulation 
Temperature Coefficient 
Ripple/Noise(Single/Dual) 
Voltage Accuracy 
Voltage Balance 
Short Circuit Protection 
Efficiency  
See Selection Chart 
Single (10% to FL) 
Dual (25% to FL) 
(HL-LL) 
+/-0.05%/°C 
3.3V/5V 
12V/15V 
+/- 2% 
(Dual) 
Continuous 
See Selection Chart 
+/- 0.5%
+/-1% 
+/- 0.5%
100mVp-p max.
1% p-p max.
+/- 1%
GENERAL SPECIFICATIONS 
Input-Output Isolation 
Isolation Resistance 
Switching Frequency 
Safety 
500VDC (“M” Versions) 
1500VDC (“H” Versions) 
10-9nth Ohm min. 
100Khz 
UL60950 - “H” Versions Only 
ENVIRONMENTAL SPECIFICATIONS 
Oper. Temperature 
Case Temperature 
Storage Temperature 
Cooling  
MTBF 
-25 to +71°C 
100°C max. 
-40 to +100°C 
*
Free Air Convection 
Single O/P 
Dual O/P 
MIL-HDBK-217F 
Ground Benign, 25°C 
1,249,000 Hrs.
1,186,000 Hrs.
PHYSICAL SPECIFICATIONS 
Case Material 
Construction 
Weight  
Dimensions 
Black coated Copper 
w. Non-conductive base 
Fully Encapsulated 
0.5 oz, (13g) 
1.25”x0.8”x0.4” 
*
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.  
All specifications are typical at nominal input, full load, and 25DegC unless 
otherwise noted
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.