Connector system for UAV Identification Friend or Foe (IFF) technology

Sunkye's Nano-D Connectors for IFF technologies contribute to global mission security through military Identification Friend or Foe technology.

IFF Technologies encompass an electronic Identification Friend or Foe (IFF) air traffic control identification system that safeguards military aircraft from inadvertent attacks by "friendly" forces upon their return from missions. Initially developed during World War II, IFF technologies have undergone significant evolution over the decades, transitioning from physical devices mounted on the ground, in aircraft, and on related platforms to modern digital architectures. Today's IFF systems build upon radar-based interrogation and response signal transponder systems, serving as a critical component of Combat Identification (CID) systems within C4ISR structures for national defense. This technology not only bolsters global mission security but also enhances flight tracking data collection efforts. Engineers focus on size and weight reduction to achieve the SWaP (Size, Weight, and Power) goals while ensuring ease of operation.

In the realm of electronics and connectors, there is a pivotal role in minimizing overall system size and weight while preserving proven technology. Nano-miniature connectors are highly valued for their compact size, precision, and reliability, particularly in applications where space and weight are crucial factors.

Sunkye's R06 Nano-D Connectors adhere to Military Specification MIL-DTL-32139, featuring Twist Pin contact technology with a contact center spacing of 0.635 mm (.025") within the same row. These connectors have been rigorously tested and proven to withstand high shock conditions, ensuring resilience against the intense shock and vibration levels often encountered during aggressive UAV landings. Additionally, they exhibit robust performance in extreme temperature environments ranging from -55°C to +125°C.

Sunkye Nano-D Connectors’ specifications:


Test Results


10 Hz~2000Hz,196m/S²

Mechanical Shock

980m/S² 6ms

Rated Current


Insulation Resistance

≥5000MΩ 100VDC

Contact Resistance




Sunkye Connection Technologies provides a wide product portfolio with a complete interconnect solutions offering. Sunkye connectors and cables assemblies are complementary with Sunkye backshells and conduits.