The series units, besides standard operation in a vast class of radioelectronic and electrical equipment, are meant to be used in critical missions: operation in emergency conditions, operation in case of compromised sealing of the equipment compartment, short-term higher than max power delivery.
Powerful 3-phase-input Low Profile (LP) units of AEPS-GROUP series JETNA-LP with improved power factor are made for 3-phase mains 400 (323-440 VAC, 390-620 VDC, 3 phases without N), 50 Hz and 220 (187-264 VAC, 263-372 VDC, 3 phases without N), 50 Hz – on request. It’s possible, on request, to provide 400 Hz input models. DC inputs may be used too in any polarity, please consult with the producer.
Made for conductive cooling systems, operational in case temperature range of -60…+95 °С. Other cooling systems may be used too (please see the datasheets).
Electrical features: all JETNA-LP units utilize output synchronous rectification, which brings their efficiency up to 94% – 95%. The units include full set of service functions, up to active current sharing parallel operation. On request it’s possible to order models with high output voltages, up to 400 VDC.
Constructional features: series units JETNA-LP achieve a unique combination of compact design and high efficiency. This results in unprecedented power density of 35 to 42 W/inch3 in their respective power range. Aluminum or copper case base has stiffening ribs and also serves for conductive cooling. Considering that all components significant in weight are connected to the base and submerged in heat-transferring potting – resistance to and durability against mechanical stress is unique. Unique property of the series is ultra-low-profile height (only 29 mm for JETNA1000-LP and 39 mm for JETNA5000-LP) and extreme temperature operating range of –50° C to +95° C or –60° C to +95° C (on request).
AEPS-GROUP JETNA-LP units are optimal to be utilized in application fields 1, 2, 3, 4, 5, 6, 7, 8, 9, 11 – for sealed and protected spaces as well as for aerial objects at heights up to 15 km in unsealed and unprotected spaces: planes, drones, helicopters, hot air balloons and gliding devices, meteoprobes. Also applied in all types of land transport – railway locomotives and wagons, cars, tracked vehicles. The units are also an optimal fit for telecom equipment, mining, supercomputers, radars and informational displays and screens, located in outdoors conditions. At the same time, JETNA-LP units operate in Arctic and Antarctica, in mountains at all heights and in cold or hot deserts etc.
To know more, read following essays: About input ranges, About efficiency, About planarity.
In high-power applications (1000W to 5000W+), traditional wire-wound transformers become massive and create significant thermal bottlenecks. By utilizing advanced planar magnetics, our JETNA three-phase AC/DC converters achieve an exceptionally low profile and unparalleled power density. This design not only drastically reduces the overall weight and footprint of the power supply but also provides a highly efficient, direct thermal path for heat dissipation, significantly increasing the MTBF (Mean Time Between Failures).
Grid stability is critical in heavy industrial and defense applications. JETNA modules are designed with an integrated three-phase Active Power Factor Correction (PFC) circuit. This ensures symmetrical loading across all three input phases, preventing neutral wire overload and minimizing Total Harmonic Distortion (THD). It guarantees compliance with strict power quality standards and ensures maximum efficiency when drawing power from the 3-phase AC mains.
Yes, fanless operation is a core feature of the JETNA series, designed specifically for enclosed and ruggedized systems. Instead of relying on failure-prone fans, these modules utilize baseplate conduction cooling. The planar components transfer heat directly to a robust aluminum baseplate. By mounting this baseplate to a system chassis, external heatsink, or a cold plate (liquid cooling), the power supply can safely operate at full load even in completely sealed, unventilated environments.
Absolutely. JETNA converters are built to survive where commercial power supplies fail. The internal electronics are fully encapsulated with a specialized thermally conductive potting compound inside a ruggedized metal case. This provides ultimate protection against high-impact shock, continuous vibration, dust, and humidity. They also feature an ultra-wide operating temperature range (from -40°C or -50°C up to +85°C baseplate temperature), making them ideal for radar systems, defense ground vehicles, and heavy marine equipment.
Yes, JETNA three-phase converters support active current sharing. This allows design engineers to safely parallel multiple units to scale up the total output power (e.g., combining units to reach 10kW or 15kW) or to build highly reliable N+1 redundant architectures. If one unit drops out, the remaining converters instantly share the load, ensuring zero downtime for mission-critical loads.
The JETNA series is highly versatile and covers the most demanding global grid specifications. Depending on the exact model, they accommodate standard industrial 3-phase networks (such as 3x380VAC or 3x400VAC at 50/60Hz) as well as specialized avionics and shipboard grids (such as 3x115VAC at 400Hz). Always consult the specific product datasheet or contact our engineering team to select the perfect input configuration for your project.
