Summary points:
- The VXR125-27000S offers 125 Watts of output power and operates over a 160-400-volt input range for military and commercial avionics, vehicles, and space applications.
- With as much as 89 percent efficiency and no external components necessary for stability, this converter ensures high performance even in temperatures as hot as 105 degrees Celsius.
- Compliant with military standards, the VXR125-27000S is qualified for use in shock, vibration, and temperature cycling to ensure reliability in mission-critical environments.
BLACKSBURG, Va. – VPT Inc., a HEICO company in Blacksburg, Va., is introducing the VXR125-27000S 270-volt-input COTS DC-DC converters for military and commercial avionics, military vehicles, space power electronics, weapons, and sensors.
These commercial off-the-shelf (COTS) power electronics devices deliver 125 Watts of output power and operate over a 160-to-400-volt input range.
The VXR125-27000S uses VPT's epoxy-encapsulated-volt-SHIELD packaging for high-chemical and environmental resistance, and features dual-sided conduction cooling to simplify thermal management.
A six-sided metalized shield improves EMI performance, and the device is compatible with high-volume assembly processes including wave soldering and aqueous wash.
Tell me more about how DC-DC converters work ...
- DC-DC converters are electronic circuits that change one DC voltage level to another. They use high-frequency switching and energy-storage components like inductors, capacitors, or transformers to boost, buck, or invert it. The converter rapidly switches current on and off by storing energy in magnetic or electric fields and releasing it at controlled intervals. A feedback control system monitors the output voltage and adjusts the switching duty cycle to maintain stability under varying loads. Because energy is transferred rather than dissipated as heat, DC-DC converters are efficient, and are essential in battery-powered devices, renewable energy systems, and power management for electronics and electric vehicles.
The VXR125-27000S requires no external components for stability to reduce overall part count and design complexity. The converter also delivers as much as 89 percent efficiency -- higher full-load efficiency than comparable solutions -- and improved transient response.
This power electronics product can operate in temperatures as hot as 105 degrees Celsius at full power with no derating across the input voltage range to ensure consistent performance in demanding thermal environments. Each unit undergoes a 96-hour burn-in at 105 C to provide added assurance of long-term reliability in mission-critical applications.
The mil-spec converter is qualified to JESD22, MIL-STD-810, and MIL-STD-883 standards for shock, vibration, and temperature cycling. It meets RTCA/DO-160 Section 16 requirements, and when paired with an appropriate VXRF2-270 EMI filter, also complies with MIL-STD-461, RTCA/DO-160 Sections 18 and 21, providing a solution suitable for both military and commercial aircraft.
For more information contact VPT online at www.vptpower.com/search/products?q=VXR125-27000S.