Model: HNC-4AH-3540 Resonance frequency ( KHz: 40 1.0 ) Static capacitance ( pf ) : 400010% Resonance impedance( ) : 20 Size D * H: 45* 55 Power ( W) : 50w Insulation impedance( 2500V DC ) : 100M Notes: Black ceramic chip We manufacture various kind of ultrasonic transducers for industrial cleaing, plastic jointing, textile cleaning, ultrasonic beauty machine, resonator for inkjet printer, cell smashing, etc. The frequency ranges 17-130KHz and power ranges 20W-2300W. Weldome to login our website to learn more details or contact directly!