CMRJW Series
12 Watt Single Output
4:1 Input Voltage Range
Rev B
Chassis Mount DC/DC Converter
FEATURES
● UL/CUL 1950
TYPICAL APPLICATIONS
● Low Profile & Height PCB
● Regulated Output
● On-Board Distributed Power
● 9V-36V or 18V-75VDC Telecom Input
● Over Voltage Protection
● > 1500VDC I/O Isolation
● Output Power up to 12 Watts
● Continuous Short Circuit Protection
● 4:1 Ultra Wide Input Range, High Efficiency
● Call Factory for More Output Power Options
● Ideal for Telecom and Networking Applications
● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
SPECIFICATIONS: CMRJW Series
All specifications are based on 25°C, Nominal Input Voltage, and Maximum Output Current unless otherwise noted.
We reserve the right to change specifications based on technological advances.
SPECIFICATION
INPUT (Vin)
TEST CONDITIONS
Min
Typ
Max
Unit
24V nominal input models
9
24
48
36
75
VDC
VDC
Input Voltage Range
48V nominal input models
18
Remote ON/OFF
Pin 6 (optional see notes 1, 2 and 3)
TTL Logic
OUTPUT (Vo)
Output Voltage Range
Output Voltage Accuracy
Load Regulation
See Table
±1.0
% of Vo
10% - 100% load
±0.5
±0.5
%
%
W
Line Regulation
High Line / Low Line
Output Power
12
See Table
Output Current Range
Ripple & Noise (20MHz)
Transient Response
REMOTE ON/OFF (POSITIVE REFERENCED)
Supply On
< 75
mVpk-pk
Within ±1% Vout
< 500
μs
2.5VDC to 5.5VDC or Open Circuit
Supply Off
-0.7
0.8
10
VDC
mA
Standby Input Current
Control Common
Referenced to Negative Input
REMOTE ON/OFF (NEGATIVE REFERENCED)
Supply On
-0.7
1.2
VDC
Supply Off
3.5VDC to 10VDC or open circuit
Source Current Remote Pin
Control Common
1
mA
Referenced to Negative Input
PROTECTION
Over Current Protection
Short Circuit Protection
GENERAL
Limiting (% of Iout)
Continuous
Efficiency
See Table
Switching Frequency
Isolation Voltage (input to output)
ENVIRONMENTAL
Operating Temperature (Ambient)
Storage Temperature
Case Temperature
PHYSICAL
400
KHz
>100MΩ Resistance (60 seconds)
> 1500
VDC
No derating
-40
-40
+71
+125
100
°C
°C
°C
Weight
Approximately 6oz.
4(L) x 2.2(W) x 0.81(H) inches
Dimensions
Wall Industries, Inc. 37 Industrial Drive Exeter, NH 03833
603-778-2300 www.wallindustries.com Fax 603-778-9797