High-voltage regulated DC power supplies with reinforced isolation

RS Components has introduced the new TRI Series of high-voltage regulated DC-DC converters from power supply specialist TRACO Power. Aimed principally at electronic engineers designing IT equipment for industrial, instrumentation and transportation applications, this series of power converters combine a sophisticated reinforced isolation system, capable of withstanding high test voltages, with high common-mode transient immunity.

The series provides five power options: 3.5W, 6W, 10W, 15W and 20W. The first three options, housed in compact 1.25" x 0.8" x 0.4" DIP-24 packages, give 7071VDC regulated I/O isolation and 9000VDC peak isolation of up to one-second duration. The 15W and 20W models, with a 2" x 1" footprint, feature 5940VDC I/O isolation and 8000VDC peak isolation up to one second. All models offer a 1000VAC RMS working voltage and common-mode transient immunity (dv/dt) of 15kV/µs.

Other characteristics incorporate low no-load power consumption ranging from 96–192mW for 3.5W models to 240–480mW for 20W versions; high efficiency of up to 90%; and overload, overvoltage and short circuit protection. Meantime between failure is over one million hours.

These converters provide 12V (9–18V), 24V (18–36V) and 48V (36–75V) input voltage options with a wide 2:1 input range, and accurately regulated output voltages of 5.1V, 12V or 15V single-mode or ±12V or ±15V dual mode. A 4.5–9V input range option is offered for 3.5W models.

An internal filter allows all of the power supply series to comply with EN 55032 class A EMC emission demands for multimedia equipment used in non-residential environments — including professional IT, broadcast, audio-visual and lighting control products — without any external components. All models are safety qualified to IEC/EN/UL 62368-1 with IECEE CB Report, operating safely over a wide temperature range from –40C to +85C.