PM-DB27101

The PM-DB27101 is an isolated DC-DC converter module from Holt Integrated Circuits, belonging to the PM-DB series of compact, high-reliability power conversion devices. Housed in a rugged M-DIP (metal dual in-line) package, this module integrates magnetics, control, and protection functions to deliver a fully regulated output from a wide input voltage range, minimizing external component count and board space. Typical characteristics of the series include galvanic isolation up to several thousand volts, high efficiency across load conditions, and an industrial or full military operating temperature range spanning -55°C to +125°C. The design incorporates overcurrent, short-circuit, and thermal shutdown protections, and produces low output ripple and noise suitable for sensitive analog circuits. The M-DIP package offers secure through-hole mounting and enhanced thermal dissipation compared to plastic alternatives.

Typical applications span mission-critical systems in aerospace, defense, and industrial automation where consistent power delivery and isolation are essential. These converters are commonly deployed in avionics power distribution, flight control modules, radar and electronic warfare subsystems, unmanned vehicle electronics, and ruggedized industrial controllers. Procurement considerations for the PM-DB series focus on long lifecycle support and continuity of supply, attributes critical to defense and aerospace programs with extended qualification cycles. Holt Integrated Circuits maintains traceability and supports a range of screening options, including military temperature grades and potential compliance with MIL-STD-883 or similar environmental standards. Engineers should verify the specific part number suffix to confirm isolation rating, output voltage configuration, and screening level, ensuring compatibility with program requirements and obsolescence mitigation strategies.