Powerbox is heading to electronica 2026.
Explore Powerbox’s custom engineering capabilities, standard and adapted power solutions, and developments in connected power management. Meet our team in Hall A5, Stand 312, November 10–13.

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Powerbox announces the successful completion of its transfer from COSEL to the HYPAX group, marking the beginning of an exciting new chapter for growth and innovation.

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Powerbox will exhibit at FSi-messa 2026 in Lillestrøm, Norway, showcasing reliable power solutions for mission-critical defense applications.

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Displacing reliable silicon technology requires more than smart schematics; it demands rigorous, transparent laboratory testing. Learn how Powerbox utilizes multi-layered testing pipelines, 1,000-hour HTRB stress testing, and system-level aging to minimize the risks of early technology adoption in medical and industrial environments.

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In the power electronics sector, efficiency upgrades are only valuable if they come with long-term reliability. For engineering teams deploying hardware in rugged industrial, defense, and mission-critical medical settings, understanding component-level validation data through JEDEC, EPSMA, and PSMA frameworks is the ultimate way to de-risk a project.

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As wide band gap technologies redefine power densities, legacy compliance frameworks like IPC-9592B are creating an architectural bottleneck. Discover how independent designers navigate the modern compliance gap.

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Powerbox announces an agreement to transfer ownership to Hypax, marking the next step in the company’s long-term growth while ensuring full continuity for customers and partners.

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Reliable power systems for harsh environments require more than standard power conversion. Discover how PRBX ruggedized AC/DC and DC/DC power platforms support stable operation in defense, transportation and industrial applications exposed to vibration, thermal stress, unstable voltage and demanding operating conditions.

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Powerbox introduces the ECDD DC/DC series for defense and harsh environments, delivering stable performance even under unstable power conditions.

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MIL-STD-1275 defines the electrical conditions power systems must withstand in 28V vehicle environments. This article explains the real-world challenges of unstable input power and what reliable system design requires.

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New higher‑voltage variants of COSEL’s HFA3500TF series extend output up to 300 VDC, giving designers greater flexibility to build compact, scalable high‑voltage systems with up to 1000 VDC using series configurations.

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Operational success in unmanned systems is decided long before takeoff. While intelligence and processing get the headlines, reliability in the field is a function of power infrastructure. We explore why the ‘supporting layer’—from charging stations to control nodes—is the true pillar of mission success at the tactical edge.

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Rugged Power Redefined. Powerbox is expanding its Defense Line with a new mission‑ready platform. Watch the teaser and follow our pre‑launch updates.

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Powerbox is committed to powering a more sustainable future by reducing environmental impact across our entire value chain. Grounded in a five-pillar framework, we are engineering smarter, more compact power solutions to achieve a 20% reduction in emissions by 2030.

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Discover how power decisions shape system success. Learn why a system-level approach to power architecture reduces risk and strengthens long-term performance.

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Modern defense, industrial automation and transportation systems often operate where traditional power supplies fall short, requiring silent, reliable, fan-free solutions that withstand dust, shock, vibration, temperature swings and 24/7 operation.

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Diamond is showing potential to outperform both silicon and wide band gap semiconductors in power electronics.

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Wide band gap (WBG) semiconductors like gallium nitride (GaN) advance power electronics with higher efficiency, faster switching, and greater power density, though adoption faces challenges.

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In a world increasingly shaped by the urgent need for climate action and social responsibility, PRBX (Powerbox) is a shining example of how industrial technology companies can lead with purpose. From the very beginning, PRBX has embedded sustainability into its core mission—not just as a corporate responsibility, but as a foundational pillar of its innovation and long-term strategy.

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COSEL has just unveiled the full-brick DCS1400B, an incredibly robust, high-efficiency, high-voltage DC/DC converter (HVDC converter) delivering up to 1400W, that is perfect for harsh environments and rugged applications.

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For over five decades, our company has specialized in designing power supplies for challenging applications, honing our expertise through this extensive experience.

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On April 30, 2024, COSEL Co. (COSEL), Ltd. entered into a capital and business alliance agreement with LITE-ON TECHNOLOGY CORPORATION (LITEON) and has been promoting business collaboration under the joint vision of COSEL and LITEON to “Become a Worldwide Leading Brand in Standard Power Solution.”

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Subsea power electronics design demands extreme reliability making it one of the most technically challenging and rapidly evolving , fields in power systems engineering.

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Radio communications play a critical role in modern defense systems, enabling real-time coordination, situational awareness, and command-and-control capabilities across a wide spectrum of operations.

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For the power designer, any new technology that improves performance while making products smaller and more energy efficient is a very exciting concept — we’re talking holy grail territory.

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Laser equipment in medical applications require highly reliable and safe power supplies that can deliver very high peak energy levels to the laser or discharge tubes.

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Modernization of railways is done basically with an objective to run existing and new trains at faster speeds safely and to give better customer service to rail users.

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PRBX latest White Paper: “Ecodesign, Reuse, Repair, Prolonging Lifetime and New Technology – Is it the new paradox?”

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COSEL Co, Ltd (6905: Tokyo) today announced the launch of the HFA3500TF, a low-profile 3-phase, 3-wire 3500W AC/DC enclosed power supply design optimized for industrial equipment such as semiconductor manufacturing, laser processing machines and robotics.

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Powerbox has announced the release of its new ruggedized series, the ECD1000A for ground-based defense applications and harsh industrial environments.

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