1/16th brick DC/DC converters exhibit shock and vibration tolerance

Encapsulated DC/DC converters designed specifically for industrial, industrial mobility and railway applications make up the 50W IRS-Q48 series from Murata Power Solutions. According to the company they provide market-leading efficiency using fixed frequency switching power supply architectures, in an industry standard 1/16th brick pinout.

Murata’s IRS-Q48 series provides basic insulation with 2250V DC input-to-output isolation and a fully regulated DC output. The IRS series includes modules with outputs of 3.3, 5.0 and 12V DC with up to 50W of output power. The universal Vin range of 18 to 75V DC meets the requirements of EN50155 for nominal input voltages of 37.5 and 48V DC including brown out and transient conditions.

The IRS-Q48 series is available from Murata with an option for a standard or a flanged baseplate for various conduction cooling configurations including cold wall mounting. Efficiency is 91 per cent for cool, efficient operation, says Murata. The electrical and mechanical design incorporates proprietary technology providing shock and vibration tolerance that meets or exceeds EN 61373:1999 Category1, Class B, body mounted requirements.

A 4:1 input range allows the IRS-Q48 series to support common bus voltages of 24, 28, 37.5, 48 and 54V DC, commonly found in industrial, industrial mobility and rail electronic systems. Applications will include the rail eco system including, but not limited to mobile communications signalling, lighting, signs, computing, motor drives, control modules, and security systems. Other applications include 12, 24 and 48V battery systems, smart grid systems, intermediate bus, harsh environment applications in networking equipment, wireless networking equipment for mobile computing, test equipment, and other applications requiring a regulated 3.3, 5.0 and 12V DC source.

Standard features of the series include baseplate cooling, encapsulated mechanical design, on/off logic control, output short circuit and over-voltage protection together with input under voltage lock out (UVLO) over temperature protection circuits.


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