RADSOK® PowerBlok™ WTB | Compact Board Connectors for Power Applications

Compact and Reliable Board Connectors for Power Systems

The RADSOK® PowerBlok™ WTB from Amphenol Industrial Operations is a compact wire-to-board connector engineered to support the increasing power demands of today’s advanced electronic systems. Using patented RADSOK® contact technology, it delivers high-current performance with a minimal PCB footprint—ideal for applications where space, weight, and power density are critical. As power electronics continue to evolve, especially in compact computing systems, the need for low-profile, board-level interconnects has grown rapidly. PowerBlok™ WTB answers that call with high reliability, streamlined design, and robust electrical performance. As one of the most efficient board connectors for power, it supports next-gen architectures where space and current delivery must coexist seamlessly.

Available in two optimized configurations, the PowerBlok™ WTB supports both 2.4 mm and 3.6 mm contact sizes. The 2.4 mm version accommodates 12–14 AWG wire and delivers up to 35A of continuous current, while the 3.6 mm version accepts 6–8 AWG wire and is rated for 70A. These performance levels are supported by Amphenol’s precision-engineered silver-over-nickel contact surfaces, which reduce resistance and improve current-carrying efficiency. The connector is rated to withstand up to 500 VDC and provides an insulation resistance of 5000 MΩ, helping to maintain safe and stable operation even in densely populated electronic systems.

Engineered for Performance and Seamless Integration

Built with a two-point contact design—one positive and one negative—the PowerBlok™ WTB ensures balanced electrical distribution and low heat generation. Its construction supports a minimum of 100 mating cycles, making it suitable for applications where periodic maintenance or module replacement is required. The robust locking system, combined with optional removable housings, helps the connector remain secure under conditions of vibration or mechanical stress. Whether it’s integrated into a new board layout or used as a high-performance upgrade, the PowerBlok™ WTB’s mechanical integrity remains uncompromised. These features position it as one of the most dependable board connectors for power in mission-critical systems.

Integration into automated manufacturing lines is also a key feature. The connector is supplied in tape-and-reel packaging, supporting high-speed assembly environments. Its through-hole pin configuration ensures stable solder joints, and the product is optimized for PCB thicknesses ranging from 1.5 mm to 2.5 mm. Designers can choose from vertical or right-angle mating orientations, providing flexibility in board layout and cable routing. This makes it a go-to solution for OEMs looking to simplify their supply chain without compromising performance. For systems where performance and space are non-negotiable, board connectors for power like the PowerBlok™ WTB offer unmatched efficiency and reliability.

Ideal for AI and Next-Generation Electronics

RADSOK® PowerBlok™ WTB board connectors for power are optimized for emerging technologies, including Artificial Intelligence (AI) hardware, where compact, high-current delivery is essential. The connector also serves critical roles in datacenter equipment, telecom infrastructure, power supplies, and industrial control systems. As AI workloads grow and systems become more power dense, the PowerBlok™ WTB offers engineers a reliable solution that meets both electrical and mechanical demands. A RAND Corporation study projects that AI data centers could require an additional 10 gigawatts of power capacity in 2025, highlighting the importance of efficient power connectors in supporting this growth.

As system architectures continue to shrink while becoming more powerful, connector solutions must keep pace. The PowerBlok™ WTB supports this evolution by offering engineers the flexibility to design power systems that are smaller, more efficient, and more reliable than ever before. It excels in high-density enclosures where thermal performance, contact reliability, and mechanical security can make or break long-term system performance. Its design reflects the next generation of board connectors for power, bridging the gap between form factor constraints and increasing system demands.

Tested and Certified for Industrial Use

Built for harsh operating conditions, PowerBlok™ WTB is rated for temperatures from -40°C to +105°C and meets UL94 V-0 standards for flame resistance. Its RoHS and REACH compliance ensures adherence to global environmental and material safety directives. While not designed for waterproof environments, the connector performs reliably in sealed enclosures or indoor industrial systems where environmental sealing is handled at the chassis or housing level. These credentials make it an ideal solution for OEMs across power conversion, automation, and embedded control systems seeking certified board connectors for power applications in regulated markets.

Get More from Your Power Design

The RADSOK® PowerBlok™ WTB is more than just a compact connector—it’s a platform for efficient, scalable board-level power delivery. Whether you’re developing next-generation AI servers, 5G telecom infrastructure, or precision industrial equipment, this connector helps reduce system complexity while increasing current throughput and thermal performance. Its modularity and ruggedness allow you to build with confidence, knowing that your power infrastructure is built on proven, high-quality engineering. Contact Amphenol Industrial Operations to learn how PowerBlok™ WTB can enhance your application, or download the brochure for full specifications, drawings, and part numbers.