CMJRW Series
10 Watt Single Output
Chassis Mount DC/DC Converter
4:1 Ultra Wide Input Voltage Range
Rev. C
FEATURES
● High Efficiency up to 86%
● Fixed Switching Frequency
● Six-Sided Continuous Shield
● 4:1 Wide Input Voltage Range
● International Safety Standard Approval
● Call Factory for More Output Power Options
UL
TUV
CB
CE MARK
● Options: Add suffix “-I” for Extended Operating Temperature Range
● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
SPECIFICATIONS: CMJRW Series
All specifications apply @ 25°C ambient unless otherwise noted
INPUT SPECIFICATIONS
GENERAL SPECIFICATIONS
Input Voltage Range.............24V nominal input ....................... 9 - 36VDC
48V nominal input ..................... 18 - 75VDC
Efficiency ..................................................................................... see table
Switching Frequency............................................................... 300KHz typ.
Isolation Voltage (Input to Output)........................................1600VDC min.
Isolation Resistance............................................................. 109 ohms min.
Isolation Capacitance...............................................................300pF max.
Input Surge Voltage (100ms max) ....... 24V input.......................... 50VDC
48V input.........................100VDC
Input Reflected Ripple Current ....................................................30mAp-p
(nominal Vin and full load)
Start Up Time (nominal Vin and constant resistive load).............20ms typ.
ENVIRONMENTAL SPECIFICATIONS
Remote ON/OFF (Option) (See Note 2)
Operating Temperature (See derating curves)
(Positive Logic)...............DC-DC ON............ Open or 3.5V < Vr < 12V
DC-DC OFF ............ Short or 0V < Vr < 1.2V
Standard ............................................. -25°C ~ +85°C (with derating)
“I” (See Note 4)..................................... -40°C ~ +85°C (with derating)
Storage Temperature.........................................................-55°C ~ +105°C
Maximum Case Temperature............................................................100°C
Relative Humidity.................................................................5% to 95% RH
(Negative Logic) .............DC-DC ON.............. Short or 0V < Vr < 1.2V
DC-DC OFF .......... Open or 3.5V < Vr < 12V
Remote Off Input Current (nominal Vin) ...........................................20mA
OUTPUT SPECIFICATIONS
Thermal Impedance (See Note 5)
Output Voltage............................................................................see table
Voltage Accuracy (nominal Vin and full load)......................................±1%
Output Current ............................................................................see table
Output Power...................................................................... 10 watts max.
Line Regulation (LL to HL at FL)......................................................±0.2%
Load Regulation (10% - 100 % FL)................................................. ±0.5%
Minimum Load (See Note 1) .............................................10% of full load
Ripple/Noise (20 MHz BW)..........................................................50mVp-p
Temperature Coefficient.................................................±0.02% / °C max.
Transient Response Recovery Time (25% load step)...................... 250us
Natural Convection............................................................12°C / Watt
Natural Convection with Heat-Sink ....................................10°C / Watt
Thermal Shock................................................................... MIL-STD-810D
Vibration................................10~55Hz, 10G, 30 minutes along X, Y, and Z
MTBF (See Note 3).........................................................1.976 x 106 hours
PHYSICAL SPECIFICATIONS
Potting material of the DC/DC Converter..........................Epoxy (UL94-V0)
Shielding of the DC/DC Converter.................................................six-sided
Weight ...........................................................................Approximately 6oz
Dimensions...........................................4.00(L) x 2.25(W) x 0.81(H) inches
PROTECTION SPECIFICATIONS
SAFETY & EMC
Over Voltage Protection .................3.3V output..................................3.9V
Approvals and Standards..............IEC60950-1, UL60950-1 (See Note 10),
EN60950-1
(zener diode clamp)
5V output ...................................6.2V
12V output ...................................15V
15V output ...................................18V
Conducted Emissions ........EN55022............................................. Class A
Over Load Protection (% of full load at nominal input) ............. 150% max.
Short Circuit Protection. ................................. Hiccup, automatic recovery
Radiated Emissions ...........EN55022............................................. Class A
EN55022............................................. Class B
ESD...................................EN61000-4-2 ............................Perf. Criteria B
Radiated Immunity.............EN61000-4-3 ............................Perf. Criteria A
Fast Transient....................EN61000-4-4 ............................Perf. Criteria B
Surge.................................EN61000-4-5 ............................Perf. Criteria B
Conducted Immunity ..........EN61000-4-6 ............................Perf. Criteria A
Due to advances in technology, specifications subject to change without notice
Wall Industries, Inc. • Tel: 603-778-2300 • Toll Free: 888-597-9255 •
website: www.wallindustries.com • e-mail: sales@wallindustries.com
5/15/2019
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