pD-2503
25W Dual Output with 3.3V output
Mechanical Specification
Unit:mm
107
94
6.35
4-3.5�Dia
Mounting�Holes
1
2
3
1
2
3
4
CN1
CN2
To�Chassis�Grounding
AC�Input�Connector�(CN1)�:�Molex�41791-03��or�equivalent
DC�Output�Connector�(CN2)�:�Molex�41791-04�or�equivalent
Pin�No. Assignment
Mating�Housing
Terminal
Pin�No.
Assignment
+5V
Mating�Housing
Terminal
1
2
3
AC/L
No�Pin
AC/N
1
2,3
4
Molex�2139
or�equivalent
Molex�2478
or�equivalent
Molex�2139
or�equivalent
Molex�2478
or�equivalent
COM
+3.3V
Block Diagram
fosc�:�100KHz
+V1
RECTIFIERS
POWER
SWITCH-
ING
RECTIFIERS
EMI
FILTER
+V2
I/P
&
&
COM
FILTER
FILTER
PWM
CONTROL
DETECTION
CIRCUIT
FG
Output Derating
Static Characteristics
Ta=25
+5V
5.7
5.1
4.5
3.9
3.3
2.7
2.1
140
120
100
80
100
80
60
40
+3.3V
+5V
60
40
20
20
+3.3V
-10
-10
0
0
10
20
30
40
50
45
60
55
70 (HORIZONTAL)
65 (VERTICAL)
60
80 100 120 140 160 180 200 220 240 260
AMBIENT TEMPERATURE (
)
300 Myleꢀ standiꢀh Blvd., Taunton, MA 02780
ph: 1-800-823-8082 Fax: 508-823-8181
WWW.AsTRODYNE.COM
ASTRODYNE [ ASTRODYNE CORPORATION ]
