MSR SERIES
4 WATT
DC/DC C
ONVERTERS
W
ARNING
: E
XTERNAL
C
APACITORS
R
EQUIRED
PIN OUT
O
PERATION WITHOUT EXTERNAL CAPACITORS WILL RESULT IN DAMAGE TO THE INTERNAL CIRCUITRY
.
Pin
1, 2
1
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17, 18
1
Single Output
Positive Input
No connection
Case
No connection
No connection
No connection
Output Common
3
Output Common
3
No connection
No connection
Positive Output
3
Positive Output
3
No connection
Inhibit
No connection
Input Common
Dual Output
Positive Input
No connection
Case
No connection
No Connection
No connection
Output Common
No connection
Positive Output
No connection
Negative Output
No connection
Ext. Capacitor
Inhibit
No connection
Input Common
Triple Output
Positive Input
No connection
Case
Negative Aux. Output
Output Common Main
2
Output Common Aux.
2
Positive Aux. Output
+5 VDC Output
No connection
No connection
No connection
No connection
No connection
Inhibit
No connection
Input Common
See section B8, case C2, for dimensions.
18 17
10
1 2
9
Dot on top of cover
indicates pin one.
BOTTOM VIEW
MSR
F
IGURE
3: P
IN
O
UT
Pin Out Notes
1. Make external connection to both pins on all models.
Pins 1 and 2 positive input
Pins 17 and 18 input common
2. Pins 6 and 7 on triple output models are connected internally.
3. On the HR41-2805:
Make external connections to both output common pins (8 and 9).
Make external connections to both positive output pins (12 and 13).
MODEL NUMBERING KEY
Base Model
Input Voltage
MSR
28 512 T / ES
Output Voltage
(Main and aux. Vout for triple models)
Number of Outputs
(S = single, D = dual, T = triple)
Screening
(Standard screening has no designator
in this position.)
B4-30
24021-001-DTS Rev A
DQ# 1022
All technical information is believed to be accurate, but no responsibility is
assumed for errors or omissions. Interpoint reserves the right to make changes in
products or specifications without notice. MSR Series is a trademark of Interpoint.
Copyright © 1992 - 1999 Interpoint. All rights reserved.
CRANE [ Crane Aerospace & Electronics. ]
