SD-50 series
50W Single Output DC-DC Converter
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082 Fax: 508-823-8181
WWW.ASTRODYNE.COM
SPECIFICATION
SD-50A-5 SD-50B-5 SD-50C-5 SD-50B-12 SD-50C-12 SD-50B-24 SD-50C-24SD-50A-12 SD-50A-24
MODEL
DC�VOLTAGE
RATED�CURRENT
CURRENT�RANGE
RATED�POWER
OUTPUT VOLTAGE ADJ.�RANGE
LINE�REGULATION
LOAD�REGULATION
SETUP,�RISE,�HOLD�TIME
VOLTAGE�RANGE
EFFICIENCY (Typ.)
INPUT
EMS�IMMUNITY
WORKING�TEMP.
WORKING�HUMIDITY
STORAGE�TEMP.,�HUMIDITY
TEMP.�COEFFICIENT
VIBRATION
MTBF
DIMENSIONOTHERS
NOTE
PACKING
OVER�LOAD
OVER�VOLTAGE
DC�CURRENT
5V 12V 24V
10A 4.2A 2.1A
0�~�10A 0�~�4.2A 0�~�2.1A
50W 50.4W 50.4W
100mVp-p 120mVp-p 150mVp-p
2.0% 1.0% 1.0%
4.5�~�5.5VDC 11�~�16VDC 23�~�30VDC
0.5%
0.5%
0.3%
0.3%
0.2%
0.2%
2.5s,�50ms,�------�at�full�load
A:9.2�~�18VDC����������B:19�~�36VDC����������C:36�~�72VDC
70%
7A/12V
73% 76% 72%
3A/24V
75% 78% 74% 80% 83%
1.5A/48V
105�~�150% rated�output�power
5.75�~�6.75V/10%�load 16.8�~�20V/10%�load 31.5�~�37.5V/10%�load
Protection�type�:�Fold�back�current�limiting,�recovers�automatically�after�fault�condition�is�removed
Protection�type�:�Hiccup�mode,�recovers�automatically�after�fault�condition�is�removed
Compliance�to�EN55022�(CISPR22)�Class�B
Design�refer�to�LVD
Compliance�to�EN61000-4-2,3,4,6,8;�ENV50204,�EN55024,heavy�industry�level,�criteria A
-10�~�+60 (Refer�to�output�load�derating�curve)
20�~�90%�RH�non-condensing
-20�~�+85 ,�10�~�95%�RH
0.03%/ (0�~�50
10�~�500Hz,�2G�10min./1cycle,�60min.�each�along�X, Y,�Z�axes
365.6K�hrs�min.(SD-50A)����������357.5K�hrs�min.(SD-50B)����������368.5K�Hrs�min.(SD-50C)������MIL-HDBK-217F�(25 )
159*97*38mm�(L*W*H)
0.53Kg;�24pcs/12.7Kg/0.75CUFT
File�Name:SD-50-SPEC���2003-12-26
SAFETY STANDARDS
50W�Single�Output�DC-DC�Converter
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SD-50 series
RIPPLE�&�NOISE�(max.) Note.2
VOLTAGE�TOLERANCE Note.3
ENVIRONMENT
PROTECTION
EMI�CONDUCTION�&�RADIATION
WITHSTAND�VOLTAGE
ISOLATION�RESISTANCE
I/P-O/P:1.5KVAC�����I/P-FG:1.5KVAC�����O/P-FG:0.5KVAC
I/P-O/P,�I/P-FG,�O/P-FG:100M�Ohms/500VDC
SAFETY &
EMC
(Note�4)
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
SD-50 series
50W Single Output DC-DC Converter
300 Myles Standish Blvd., Taunton, MA 02780
Ph: 1-800-823-8082 Fax: 508-823-8181
WWW.ASTRODYNE.COM
Mechanical�Specification
Derating�Curve Static�Characteristics(SD-50C-24V)
File�Name:SD-50-SPEC���2003-10-26
Case�No.�901�����Unit:mm
AMBIENT�TEMPERATURE�( )
LOAD�(%)
100
100
0
20
40
60
80
-10
-10
20 30 40 50
45
60
55
SD-50A
SD-50B,C
INPUT�VOLTAGE�(V)
25 30 35 40 45 50 55 60 65 70 72
35032
30028
25024
20020
15016
10012
508
OUTPUT�VOLTAGE�(V)
OUTPUT�RIPPLE�(mVp-p)
Ta=25
(VERTICAL)
( )HORIZONTAL
Terminal�Pin.�No Assignment
Pin�No. Pin�No.
1
2
4
3
5
Assignment Assignment
DC�OUTPUT -V
DC�OUTPUT +V
FG
DC�INPUT V+
DC�INPUT V-
4.5
9
3.5
37.5
65
152.5
97
84.5 7
9
2-M3
1506.5
78
24
159
22 117
3-M3
18 9
18.5
3.5
3.5
3.5
5
4
3
2
8.2
1
9.5
50W�Single�Output�DC-DC�Converter SD-50 series