DC-DC Holdup Units
DC-DC Holdup Units |
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Baseplate Mount
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Series # | Amphenol part # | Power | Dimensions | Input V | Output V | Max. Curr. | Designed to Meet |
M250 | CF-02EM250 | 1.5J | 93.98mm X 65.02mm X 13.97mm | 28V | 18V - 48V | 12A |
MIL-STD-1275 MIL-STD-704 MIL-STD-810 MIL-STD-461 |
M255 | CF-02EM255 | N/A | 54.61mm X 65.02mm X 13.97mm | 28V | 18V - 48V | 12A |
MIL-STD-1275 MIL-STD-704 MIL-STD-810 MIL-STD-461 |
M256 | CF-02EM256 | 7J | 115mm X 120mm X 14mm | 28V | 18V - 48V | 12A |
MIL-STD-1275 MIL-STD-704 MIL-STD-810 MIL-STD-461 |

M250 SERIES
The M250 Series is a compact, high-efficiency energy storage solution designed to meet
demanding operational requirements. It features a wide input range and fixed switching
frequency. The module includes EMI filters for enhanced noise reduction and supports
external synchronization at 250 ± 10 kHz.

M255 SERIES
The M255 Series Hold-up Power Supply is a compact and high-efficiency unit designed for reliable operation in harsh environments. It features a wide input range, fixed switching frequency with external synchronization, and built-in EMI filters.

M256 SERIES
M256 Series DC-DC Holdup Units , Energy storage Module. Miniature size, High efficiency, Wide input range,
Fixed switching frequency

M4162 Series
During Normal Operation, the M4162 works as an Input follower. Small Voltage drop,
of less than 1V is expected.
Rugged, hi-rel DC to DC converters designed end-to-end for the toughest military applications. We offer a wide variety of units designed to comply with the most demanding military standards (MIL-STD-461, MIL-STD-704, MIL-STD-810, MIL-STD-1275, MIL-STD-1399, RTCA DO-160, EN2282, MIL-DTL-901 and DEF Stan 61-5).