CMDBW

The CMDBW series of high efficiency chassis mount DC/DC converters are single output modules with up to 40 watts of output power. This product is ideal for telecom and networking applications, and is designed for a 4:1 input range of 9VDC-36VDC or 18VDC-75VDC. Some features include 1600VDC isolation, remote on/off, and output adjustability. All models are short circuit, over load, and over voltage protected. Chassis mounts come in open frame, U channel, and enclosed types.

● High Efficiency up to 88% ● RoHS Directive Compliant ● Fixed Switching Frequency ● Six-Sided Continuous Shield ● 40 Watts Maximum Output power ● 4:1 Ultra Wide Input Voltage Range ● Call Factory for More Output Power Options ● Chassis Mount Options: Open Frame, U Channel, and Enclosed Types Available
Model
Number
Input
Voltage
Output
Voltage
Output
Current
Output
Power (W)
No.
Outputs
Case  
CMDBW24S3.3-33 Input Voltage: 24 Output Voltage: 3.3 Output Current: 10A Output Power (W): 33 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW48S3.3-33 Input Voltage: 48 Output Voltage: 3.3 Output Current: 10A Output Power (W): 33 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW24S12-40 Input Voltage: 24 Output Voltage: 12 Output Current: 3.333A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW24S15-40 Input Voltage: 24 Output Voltage: 15 Output Current: 2.666A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW24S5-40 Input Voltage: 24 Output Voltage: 5 Output Current: 8A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW48S12-40 Input Voltage: 48 Output Voltage: 12 Output Current: 3.333A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW48S15-40 Input Voltage: 48 Output Voltage: 15 Output Current: 2.666A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
CMDBW48S5-40 Input Voltage: 48 Output Voltage: 5 Output Current: 8A Output Power (W): 40 No. Outputs: S Case: Chassis Mount Get a Quote
Specification Value
Input
Input Voltage (Nominal): 24, 48
Input Voltage Range: 18-75, 9-36
Remote ON/OFF: Positive or Negative
UVLO: Yes
Input Frequency: 0 Hz
Output
Output Voltage: 3.3, 5, 12, 15
Voltage Accuracy: ±1%
Output Current: 10A, 8A, 3.333A, 2.666A
Output Power (Watts): 33, 40
Output Trim/Adjustability: ±10%
Short Circuit Protection: hiccup, automatic recovery
Over Voltage Protection: Yes
General
Efficiency: Up to 88%
Isolation: 1600VDC
Environmental
Operating Temperature: -55 - +105°C with derating
Storage Temperature: -55 to +125°C
Physical
Weight: 7 oz.
Dimensions: 4in. × 2.25in. × 0.81in.
Shielding: Six-Sided
Notes & safety
Notes: The ON/OFF control function: There are positive (standard) and negative logic (option). The pin voltage is referenced to negative input. To order negative logic ON/OFF control add the suffix "R" to the part number (Ex: CMDBW48S5-40R)
MTBF: BELLCORE TR-NWT-000332. Case I: 50% Stress, Temperature at 40°C. (Ground fixed and controlled environment). MIL-STD-217F Notice2 @ Ta=25°C, Full Load (Ground, Benign, controlled environment).
Heat sink is optional. Please call factory for ordering details.
Output ripple & noise measured with a 0.1µF/50V MLCC.
Chassis Mount Options: No suffix for open frame, "U" suffix for U Channel (add $10.00 to the listed price), and "E" suffix for Enclosed type (add $17.00 to the listed price).
Due to advances in technology, specifications are subject to change without notice.
Safety Approvals: IEC60950-1, UL60950-1, EN60950-1
RoHS Compliance: Yes

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