CMFA WALL | Alldatasheet
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Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/13/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 1 of 3 CMFA Series Full Brick 250-300 Watt, Single Output Chassis Mount DC/DC Converter Rev E
FEATURES
- 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 SPECIFICATIONS: CMFA Series All specifications apply @ 25° C ambient unless otherwise noted INPUT SPECIFICATIONS OUTPUT SPECIFICATIONS PROTECTION SPECIFICATIONS GENERAL SPECIFICATIONS ENVIRONMENTAL SPECIFICATIONS PHYSICAL SPECIFICATIONS Due to advances in technology, specifications subject to change without notice
DESCRIPTION
The CMFA series consists of high-density full brick converters that in corporate 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.
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/13/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 2 of 3 CMFA Series Full Brick 250-300 Watt, Single Output Chassis Mount DC/DC Converter Rev E MODEL SELECTION TABLE Model Number for Threaded Inserts Model Number for Thru-Hole Inserts Input Voltage Range Output Voltage Output Current Output Power CMFA12S5-300 CMFA12S5-300TH 5 VDC 60A 300W CMFA12S12-300 CMFA12S12-300TH 12 VDC 25A 300W CMFA12S15-300 CMFA12S15-300TH 15 VDC 20A 300W CMFA12S20-300 CMFA12S20-300TH 20 VDC 15A 300W CMFA12S24-300 CMFA12S24-300TH 24 VDC 12.5A 300W CMFA12S26-300 CMFA12S26-300TH 26 VDC 11.538A 300W CMFA12S28-300 CMFA12S28-300TH 28 VDC 10.714A 300W CMFA12S43-250 CMFA12S43-250TH 43 VDC 5.814A 250W CMFA12S48-250 CMFA12S48-250TH 12/24 VDC (10 – 36 VDC) 48 VDC 5.208A 250W NOTES 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 3M x 0.5 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. Ex: CMFA12S24-300HS. 5. Active High Enable is standard; for Active Low Enable add “R” suffix to the model number. Ex: CMFA12S24-300R. DERATING CURVE CMFA12S24-300 MAX AMBIENT vs OUTPUT POWER
Wall Industries, Inc. 5 Watson Brook Road Exeter, NH 03833 09/13/2013 603-778-2300 www.wallindustries.com Fax 603-778-9797 Page 3 of 3 CMFA Series Full Brick 250-300 Watt, Single Output Chassis Mount DC/DC Converter Rev E MECHANICAL DRAWING Unit: inches [mm] 3.40 [86.4] 8.00 [203.2] .000 [0.00] 3.500 [88.90] 7.000 [177.80] 2.875 [73.03] .91 [23.0] .000 [0.00] Ø.143 [3.6] MOUNTING HOLES 6X GROUNDED 6-PLACES .24 [6.0] REF UNIT THRU HOLE Ø.125 [3.2] 6X REF PCB THRU HOLE Ø.140 [3.6] 6X REF TERMINAL SCREW .136 (NO:6)-32UNC 9X +INPUT SD SYNC -INPUT +OUTPUT -OUTPUT TRIM DATE CODE SERIAL NO: LABEL .50 [12.7] .26 [6.7] .000 [0.00] TO ORDER 1. 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. 2. For Heat Sink Add “HS” suffix to model part number. Ex: CMFA12S24-300HS