Available in AT, ATHD, ATM, and ATP Series Versions. Amphenol Sine Systems?? BoardLock? Family combines flanged or flangeless, 180?? straight or 90?? right angle pin-oriented, wire-to-board versatility with the proven reliability of the A Series? environmentally-sealed thermoplastic connection system with a maximum current rating up to 100A. Compact, durable, low-profile, and lightweight.