Product Name: Ultrasonic Transducer Unit (AW10CT5621-51H)Place of Origin: ChinaFeatures: 1) Resonant frequency: 51±1kHz 2) Resonant impedance: ≤100Ω 3) Static capacitance (pf): 1,200±20% 4) Electrical-mechanical coupling coefficient (kp): ≥0.53 5) Loss: ≤0.50%tgδ 6) Applications: ultrasonic cleaners, ultrasonic drilling machines, ultrasonic welding machines, medical scalpel and tartar scalers, ultrasonic wire bonding machines, ultrasonic cutting and polishing machines