Isolated and Regulated 20 WATT Modular DC/DC Converters FDC20 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
Wide 2 : 1 Input Range
High Efciency
Regulated Outputs
1600V Isolation
Full EMI Shielding
Standard Pinouts
Model Number Output Voltage Output Amps Input Range
SINGLE OUTPUT
FDC20-12S33 3.3 VDC 4 9-18 VDC
FDC20-24S33 4 18-36 VDC
FDC20-48S33 4 36-72 VDC
FDC20-12S05 5 VDC 4 9-18 VDC
FDC20-24S05 4 18-36 VDC
FDC20-48S05 4 36-72 VDC
FDC20-12S12 12 VDC 1.67 9-18 VDC
FDC20-24S12 1.67 18-36 VDC
FDC20-48S12 1.67 36-72 VDC
FDC20-12S15 15 VDC 1.33 9-18 VDC
FDC20-24S15 1.33 18-36 VDC
FDC20-48S15 1.33 36-72 VDC
DUAL OUTPUT
FDC20-12D05 +/-5 VDC +/-2 9-18 VDC
FDC20-24D05 +/-2 18-36 VDC
FDC20-48D05 +/-2 36-72 VDC
FDC20-12D12 +/-12 VDC +/-0.833 9-18 VDC
FDC20-24D12 +/-0.833 18-36 VDC
FDC20-48D12 +/-0.833 36-72 VDC
FDC20-12D15 +/-15 VDC +/-0.666 9-18 VDC
FDC20-24D15 +/-0.666 18-36 VDC
FDC20-48D15 +/-0.666 36-72 VDC
Unit measures 1.6”W x 2”L x 0.4”H
Isolated and Regulated 20 WATT Modular DC/DC Converters FDC20 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
Wide 2 : 1 Input Range
High Efciency
Regulated Outputs
1600V Isolation
Full EMI Shielding
Standard Pinouts
Model Number Output Voltage Output Amps Input Range
TRIPLE OUTPUT
FDC20-12T3312 3.3, +/-12 VDC 3, +/-0.3 9-18 VDC
FDC20-24T3312 3, +/-0.3 18-36 VDC
FDC20-48T3312 3, +/-0.3 36-72 VDC
FDC20-12T3315 3.3, +/-15 VDC 3, +/-0.25 9-18 VDC
FDC20-24T3315 3, +/-0.25 18-36 VDC
FDC20-48T3315 3, +/-0.25 36-72 VDC
FDC20-12T0512 5, +/-12 VDC 2, +/-0.3 9-18 VDC
FDC20-24T0512 2, +/-0.3 18-36 VDC
FDC20-48T0512 2, +/-0.3 36-72 VDC
FDC20-12T0515 5, +/-15 VDC 2, +/-0.25 9-18 VDC
FDC20-24T0515 2, +/-0.25 18-36 VDC
FDC20-48T0515 2, +/-0.25 36-72 VDC
Unit measures 1.6”W x 2”L x 0.4”H
Isolated and Regulated 20 WATT Modular DC/DC Converters FDC20 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
INPUT SPECIFICATIONS
Input Voltage Ranges: 12 VDC Nominal 9-18 VDC
24 VDC Nominal 18-36 VDC
48 VDC Nominal 36-72 VDC
Max. Voltage Surge (100mS max) 12 VDC Nominal 36 VDC
24 VDC Nominal 50 VDC
48 VDC Nominal 100 VDC
Input Filter Pi Type
OUTPUT SPECIFICATIONS
Voltage and Current See Selection Chart
Load Regulation singles: +/-1%
25% - FL (single/dual) duals: +/-2%
10%-FL (triple) 3.3/5 V:+/-2%, 12/15 V:+/-5%
Line Regulation (Single/Dual) +/-0.2%
(triple) 3.3/5V:+/-1%, 12/15V:+/-5%
Temperature Coefcient +/-0.02%/DegC
Ripple/Noise(Single/Dual/Triple) (75 / 100 / 1%) mV Pk-Pk, typ
Voltage Stability (+/-12,+/-15) +/- 2%, (+/-5%)
Transient Response Recovery
25% Load Step Change 500 microSeconds
Short Circuit Protection Continuous, self-recovering
Overvoltage Protection Threshold:
3.3V Output 3.9Volts
5V Output 6.2Volts
12V Output 15Volts
15V Output 18Volts
GENERAL SPECIFICATIONS
On/Off Control (Ref to - Input pin)
Logic “1”/Open=ON
Logic “0”/GND=OFF
Input-Out Isolation 1600VDC
In/Out Capacitance 1000 pF
Isolation Resistance 10000 M Ohms
Efciency 81%, typ
Switching Frequency 300Khz, Single typ
ENVIRONMENTAL SPECIFICATIONS
Oper. Temperature -25 to +70 DegC(see derate)
Storage Temperature -55 to +125 DegC *
Maximum Case Temp 112 DegC *
MTBF 1.93 MHrs
MIL-HDBK-217F TA=25C FL
PHYSICAL SPECIFICATIONS
Case Material Nickel-Coated Copper
Non-Conductive Base
Construction/Weight Encapsulated/1.86oz (52g)
Size 1.6” x 2” x 0.4”
(40.64 x 50.8 x 10.16mm)
* 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 specications 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.
Isolated and Regulated 20 WATT Modular DC/DC Converters FDC20 series
WWW.ASTRODYNE.COM ASTRODYNE USA: 1-800-823-8082
ASTRODYNE PACIFIC: 886-2-26983458
OUTPUT DERATING CURVEMECHANICAL DIMENSIONS
Pin # Single Dual Triple
1 + Input + Input + Input
2 - Input - Input - Input
3 No Pin No Pin No Pin
4 Control Control Control
5 No Pin + Output + Aux Out
6 + Output Common +5V, +3.3V
7 - Output - Output Common
8 Trim Trim - Aux Out
1. All dimensions in Inches (mm)
Tolerance: X.XXƲ0.02 (X.XƲ0.5)
X.XXXƲ0.01 (X.XXƲ0.25)
2. Pin pitch tolerance Ʋ0.014(0.35)
1.60 (40.6)
0.20 (5.1)
0.70 (17.8) 0.60 (15.2)
)8.05( 00.2
)7.54( 08.1
0.40
(10.2)
0.40
(10.2)
0.50
(12.7)
0.70 (17.8)
0.40
(10.2)
0.22 (5.6)
124
58 7 6
B
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tt
om
View
DIA. 0.04(1.0)
50 60 70 80 90 100-40 -25 0
-10
25
50
75
100
0
AMBIENT TEMPERATURE (ºC)
)%( REWOP TUPTUO
FDC20-48S05 Derating Curve
Nature convection
45 55 65 7536 40
74
75
INPUT VOLTAGE (V)
)%( YCNEICIFFE
FDC20-48S05
Efficiency VS Input Voltage
84
83
82
81
80
79
78
77
76
6050 70
2 3 3.5 4 0.5 1
60
65
OUTPUT LOAD (A)
)%( YCNEICIFFE
FDC20-48S05
Efficiency VS Output load
84
83
82
81
80
78
76
74
70
1.5 2.5