Half brick railway power modules for rolling stock

November 14, 2019 //By Nick Flaherty
The PKJ7200 and PKJ7300 half brick railway power modules from Flex Power Modules meet the EN 50155 standard for rolling stock applications. 
The PKJ7200 and PKJ7300 half brick railway power modules from Flex Power Modules meet the EN 50155 standard for rolling stock applications. 

Flex Power Modules has launched two half brick railway power modules that meet the EN 50155 standard for rolling stock applications. 

The PKJ7200 and PKJ7300 have a wide input voltage range, surge protection, power interruption and backup, wide operational temperature range, and resistance to shock and vibration. The ailway power modules achieve an efficiency of up to 92 percent at full load, which reduces power dissipation. They are provided in a compact half-brick package, delivering high power density and saving space.

To handle the multiple different voltages used on trains, they have a wide input range of 60VDC to 160VDC. This means they are capable of handling harsh input voltage conditions, making it easier to cope reliably with the brownouts and transients that can occur in railway rolling stock. To protect against damage for both the modules and the devices they power, the modules provide input under-voltage protection (UVP) and output over-current protection (OCP), over-voltage protection (OVP) and over-temperature protection (OTP).

The PKJ7200 series offers 200W for railway power, while the PKJ series delivers 300W. Both series provide output voltages of 12V, 13.8V, 15V, 24V, 48V and 54V.

“Railway rolling stock places tough demands on power components, with a wide range of voltages, unpredictable variations in supply, and physically harsh conditions. The new PKJ7000 power modules provide the reliability, performance and affordability that’s needed,” said Olle Hellgren, Director of Product Management and Business Development at Flex Power Modules.

The first two devices in the railway power module series, the PKJ7216 and PKJ7316, are available in OEM quantities. 

flex.com

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