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Hirose Electric


Ideal for high-density mounting and easy operation, the Hirose Electric DF51K 2mm Pitch Wire-to-Board Connectors feature a unique center-lock design that will prevent any possible damage. To ensure complete mating, the connector locking mechanism delivers a clear tactile click to secure the connection, in addition to visually and mechanically polarized features to prevent reverse or incorrect mating.

Hirose Electric DF51K connectors come in straight or right-angle options, single or dual row, with gold or tin plating. These Hirose connectors are UL/C-UL certified and suitable for potting Typical applications including medical, office, industrial machinery, robots and even amusement equipment.

Explore the Hirose DF51K Series features below.

DF51K Features

Positive lock mechanism

The locking mechanism delivers a clear tactile click, which prevents incomplete mating and thus ensures complete mating. The mechanism is also user-friendly, making the mating operation secure and simple.

Wide variation

Each of the straight / right angle options are equipped with single row and dual row for flexible design possibilities. Gold and Tin plating options support all sorts of application needs.

Easy extraction

The width of the center lock increases as the pin count increases. The center lock also does not need space to un-mate the connector, which provides high density mounting.

Prevents incorrect mating

Visually and mechanically polarized features prevent reverse mating and incorrect mating between different number of positions. Note: The DF51K series is also capable of being potted up to 3mm.

DF51K Applications

  • Office equipment
  • Medical equipment
  • Industrial machinery
  • Industrial robots
  • Amusement equipment

NEW for the DF51K Series Connectors: SignalBee™

SignalBee™ is a new solution for signal cable connectors and is included in the new DF51K series connector family. A sister brand to Hirose’s cable brand EnerBee, this technology balances its compact size with high-end performance. The wide variety of configurations provides the best solutions to meet usersʼ application requirements. SignalBee offers powerful and high performance in many fields including industrial machinery. Its product quality and excellent crimping technology is based on accumulated, comprehensive knowledge in areas such as assembly tool development and more. Various options contribute to space saving and assembly labor savings.