CMFA

The CMFA series is a high-density full brick chassis mount DC/DC converter that incorporates the desired features required in today’s demanding low voltage bus applications. Its unique dual interleaved phase-shifted topology minimizes both input and output noise. When performance, reliability, and low cost are needed, the CMFA series delivers.

● 100% Burn In ● Chassis Mount ● Synchronizable ● Output Trim ±10% ● 1500VDC Isolation ● Operation to No Load ● Very Low Output Ripple ● Output Current up to 60A ● Fast Transient Response ● Fixed Switching Frequency ● 250-300 Watts Output Power ● Remote Sense Compensation ● Remote ON/OFF (Active High/Low) ● Short Circuit and Over Temperature Protection ● 90% Efficient at Half Load, 88% Efficient at Full Load
Model
Number
Input
Voltage
Output
Voltage
Output
Current
Output
Power (W)
No.
Outputs
Case  
CMFA12S43-250 Input Voltage: 12/24 Output Voltage: 43 Output Current: 5.81A Output Power (W): 250 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S48-250 Input Voltage: 12/24 Output Voltage: 48 Output Current: 5.21A Output Power (W): 250 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S12-300 Input Voltage: 12/24 Output Voltage: 12 Output Current: 25A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S15-300 Input Voltage: 12/24 Output Voltage: 15 Output Current: 20A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S20-300 Input Voltage: 12/24 Output Voltage: 20 Output Current: 15A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S24-300 Input Voltage: 12/24 Output Voltage: 24 Output Current: 12.5A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S26-300 Input Voltage: 12/24 Output Voltage: 26 Output Current: 11.54A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S28-300 Input Voltage: 12/24 Output Voltage: 28 Output Current: 10.71A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
CMFA12S5-300 Input Voltage: 12/24 Output Voltage: 5 Output Current: 60A Output Power (W): 300 No. Outputs: S Case: Chassis Mount Get a Quote
Specification Value
Input
Input Voltage (Nominal): 12/24
Input Voltage Range: 10~36
Remote ON/OFF: Active High or Active Low
UVLO: Yes
Input Frequency: 0 Hz
Output
Output Voltage: 5, 12, 15, 20, 24, 26, 28, 43, 48
Voltage Accuracy: ±1%
Output Current: 5.21A, 5.81A, 10.71A, 11.54A, 12.5A, 15A, 20A, 25A, 60A
Output Power (Watts): 250, 300
Output Trim/Adjustability: ±10%
Short Circuit Protection: Continuous, Self Re-setting
General
Efficiency: 90% typical
Isolation: 1500VDC
Environmental
Operating Temperature: -40 - +100°C
Storage Temperature: -55 to +125°C
Physical
Weight: 11 oz.
Dimensions: 8in. × 3.4in. × 0.91in.
Shielding: Six-Sided
Notes & safety
Notes: 1. Pin to pin tolerance ± 0.01" [±0.3mm]. Pin diameter tolerance ±0.005" [±0.13mm].
2. Case material of the DC/DC converter: 0.040" [1.02mm] thick, aluminum alloy 3003-0, Per: QQA 250/2.
3. Unit comes with either 6-32x.281 threaded thru inserts for the chassis mount board or for Ø.125 thru-hole for the chassis mount board add the suffix "TH" to the model part number. Ex: CMFA12S24-300TH.
4. For Heat sink add "HS" suffix to the model part number. Example: CMFA12S24-300HS.
5. Active High Enable is standard; for Active Low Enable add "R" suffix to the model number. Ex: CMFA12S24-300R.
Due to advances in technology, specifications are subject to change without notice.
Safety Approvals: OE60950-1, RN60950-1, IEC60950-1

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