Y27 Series Circular Connectors
Originally designed to meet GJB2905-97 Chinese military standards, the Y27 series circular connector also complies with performance criteria specified by MIL-C-38999 standards. The connector adopts push-pull coupling mechanism to ensure fast engagement and disengagement. Three types of material can be used to construct the connector, including aluminum alloy, naval brass, and stainless steel.
Available with a total of 13 kinds of backshells, the male connector can house 18 types of connector pins each of which with a different number of pins from 1 to 121. Up to 10 kinds of electrical currents are allowed to run through the connector, ranging between 3A and 250A.
If you got a military application that calls for blind mating or other mating areas, this Y27 series circular connector might be your best bet. Its unique backshell supports the connector’s ability to withstand other environmental challenges such as vibration, dust, rainwater, gas, and salt spray. The shell also acts as an EMI shield for the circular connector.
Outstanding waterproof properties allow this MIL-C-38999connector to be used on military fleet and ships.
Performance Specifications of Y27 Series Circular Connector| Operating Temperature | -55 °C ~＋125 °C |
| Operating Pressure | 101.3KPa ~1.33Pa |
| Relative Humidity | 90%~98% (40±2°C) |
| Vibration | Sinusoidal Vibration: 10~2000Hz Acceleration: 196m /s2 |
| Random Vibration | Power Spectral Density: 0.4G2 /Hz Root Mean Square Value of Acceleration: 23.1G |
| Shock | 980m /s2 |
| Acceleration | 980m /s2 |
| Salt Spray Test | Aluminum alloy shell with nickel plating: 48h |
| Naval Brass Shell with Nickel Plating or Passivated Stainless Steel Shell | 1000h |
| EMI/RFI Shield | RFI Frequency: 100MHz~1GHz Minimum Attenuation: 45dB |
| Immersed in Standing Water | Immersion Depth: 2m (only applied to Y27F, Y27G, and Y27H series) |
| Number of Contact Pins | 1~121 |
| Electrical Continuity (between the braided metal sheath and the backshell) | Maximum Voltage Drop: 50mV |
| Air Tightness of Receptacle Connector | Leakage Rate: 1Pa.cm3/S (rubber seal) |
| Leakage Rate: 1×10-4Pa.cm3/S (glass sealed) | |
| Lifespan | 500 mating cycles |
