40W Board-mount DC/DCs for Railway Applications
Apr 12, 2023
Our new RPA40-FR series of rugged, board-mount DC/DC converters in a 2“ x 1” x 0.4” (50.8 x 25.4 x 10.2mm) through-pin package is ideal for railway applications with their input range of 36 – 160VDC (200V/1 second). Nominal input voltages of 72V, 96V, and 110V are covered with tolerances, dips, and surges while the output selection is 5V, 5.1V, 12V, 15V, 24V, +/-12V, or +/-15V, with the single outputs trimmable by +/-10% minimum (15 and 24V models are trimmable to +20/-10%).
Efficiency for the series peaks at 90%, so that full load output is possible to high ambient temperatures with natural convection cooling only, while advanced thermal design further allows the operation to an ambient of 105°C with load derating and/or airflow.
No minimum load is required, and comprehensive protection is provided against over-temperature, input under-voltage, output over-current, and short circuits. A control pin is also provided.
The products hold safety certifications to UL/EN/IEC 62368-1, EN 45545-2, and EN 50155, with an isolation rating of 3kVAC/1 min (reinforced). EN 55032 class A EMC specification is met without external components while class B can be met with the addition of a simple filter. MTBF for the parts is 1.25MHrs according to MIL-HDBK 217-F (GB/25°C) and the robust, conservative design, along with encapsulation, makes the RPA40-FR series perfect for the harsh railway environment. The parts are also ideal for general industrial applications where surge voltages and high temperatures might be encountered.
No minimum load is required, and comprehensive protection is provided against over-temperature, input under-voltage, output over-current, and short circuits. A control pin is also provided.
The products hold safety certifications to UL/EN/IEC 62368-1, EN 45545-2, and EN 50155, with an isolation rating of 3kVAC/1 min (reinforced). EN 55032 class A EMC specification is met without external components while class B can be met with the addition of a simple filter. MTBF for the parts is 1.25MHrs according to MIL-HDBK 217-F (GB/25°C) and the robust, conservative design, along with encapsulation, makes the RPA40-FR series perfect for the harsh railway environment. The parts are also ideal for general industrial applications where surge voltages and high temperatures might be encountered.
Applications
