Small round Y27 series of electrical connectors.. Key Specifications Small round Y27 series of electrical connectors.. 1.Push / pull locking mechanism, connection reliability, connectivity and convenient separation 2.Y27 series of circular electrical connectors are widely used in aerospace, aviation, shipping, communications and other areas 3.The use of environmental conditions Working pressure: 101.3Kpa-1.33Pa . Relative Humidity: 40 ± 2 and up to 92% ~ 98% . Resistant to salt spray: 48 hours . Vibration: Frequency 10Hz ~ 2000Hz, acceleration 147m/s2. Shock: Acceleration 490m/s2..