40 W DC-DC converter with 4:1 ultra-wide input range and 1.5 kVDC isolation in a DIP package
The new 40DMW4_1.5R series is an isolated, regulated DC/DC converter with 40 W output power,
developed for demanding industrial applications that require a wide input voltage range, galvanic isolation and high reliability in equal measure. With its 4:1 ultra-wide input, the series reliably covers two nominal voltage ranges: 9–36 VDC (24 V nominal) and 18–75 VDC (48 V nominal). The single-output versions are available with regulated output voltages of 3.3 / 5 / 12 / 15 / 24 and 28 VDC.
With an efficiency of up to 92 % at full load, the series minimises power dissipation and operates entirely on free-air convection cooling — no external heat sink is required. The rugged aluminium-alloy case measures a compact 25.4 x 25.4 x 12.0 mm on the standard DIP grid (2.54 mm) and weighs only 21 g. The six-pin layout (GND, Vin, +Vo, Trim, –Vo, Ctrl), with trim function (±10 %) and remote on/off input (Ctrl), noticeably simplifies integration.
For use in harsh environments, the 40DMW4_1.5R series is rated for an extended temperature range of –40 to +105 °C (with derating). A comprehensive protection concept — input under-voltage protection, continuous short-circuit protection with automatic recovery, over-voltage protection (110–140 %) and over-current protection (110–140 %) — reliably safeguards the downstream system even in the event of a fault. The galvanic isolation of 1,500 VDC between input and output ensures a high level of operational safety; the MTBF of 1,000,000 hours (MIL-HDBK-217F @ 25 °C) underlines the long-term reliability of the series.
With a typical switching frequency of 330 kHz, a PI input filter and a ripple & noise of typ. 100 mVp-p, the
series delivers a clean, stable supply for the downstream electronics. The modules comply with the EMC
requirements of EN 55032 / FCC Part 15 Class B (CE & RE) as well as extensive immunity requirements —
including ESD ±8 kV (air) and ±6 kV (contact) per EN 61000-4-2, EFT/burst ±2 kV (EN 61000-4-4) and surge ±1 kV (EN 61000-4-5).
With its combination of ultra-wide input, galvanic isolation, high efficiency and industrial ruggedness, the
40DMW4_1.5R series is ideally suited to industrial automation, railway and transportation technology,
measurement and control technology, distributed power-supply systems and applications in harsh operating environments.
GAPTEC Electronic is a leading supplier of innovative power-supply solutions, serving the growing demands of engineers and industry worldwide. Driven by a commitment to excellence and innovation, GAPTEC Electronic supports developers with state-of-the-art technologies to bring their projects to life.
GAPTEC Electronic guarantees the shortest possible lead times. Product warranty is three years. For further information, please contact GAPTEC Electronic directly.