Hirose, a leader in the development of innovative connector solutions, has developed a versatile wire-to-board connector that enables OEMs to reduce the size of end devices. Part of the SignalBee connector family, the 2.0mm pitch DF51 Series connector has a user-friendly positive lock that provides a clear tactile click and secures a reliable connection. The dual side-lock design prevents socket lift due to vibration or cable wrenching.

To satisfy a wide range of customer requirements, the DF51 Series crimp connector is available in a number of variations including straight, right angle, in-line connection, and single or dual row. The single-row versions are offered in two to six positions, while the double row is available in four to 30 positions. Visually and mechanically polarized features prevent reverse mating and incorrect mating between a different number of positions. Gold and tin plating options support various application needs. In addition, the DF52 wire-to-board connector accepts resin sealing to protect against water and dust.

Supporting up to 3A, the DF51 Series is designed for a broad range of products including amusement equipment, industrial machinery, IT electronics, medical equipment, office equipment, robotics, smart meters, water heaters and more.

The UL/C-UL certified DF51 series uses common terminals and crimping tools with the DF11 Series contacts. The connector accepts AWG #22 AWG to #30 cables. These connectors are capable of being potted up to 3 mm.


The DF51 Series wire-to-board power connector has a rated voltage of 250V AC/DC and an operating temperature of -40 to +105°C.