75300 brand new and positive Features: Low heat. Good thermal stability. Frequency and static capacitance stable consistency. Resonant impedance is low. The usual size of life. It would be extensively utilized in quite a lot of ultrasonic cleaning equipment. High performance: mechanical Q value, immoderate vibration efficiency. Specification: Power: 35W Resonant frequency(KHz): 40 ± 1 Static capacitance(pF): 8500 ± 10% Resonance impedance: ≤20 Ohm Insulation resistance(2500V DC): ≥100M Ohm Material: Ceramic Dimensions: Diameter 5cm/1 Color: Whitegray Quantity: 1 Pc Note: 1 allow 0-1cm error because of guide measurement. pls make sure you don't mind earlier than you bid. 2 to the difference between assorted monitors, the picture may not reflect the actual coloration of the item. Thank you! Package includes: 1 x Piezoelectric Ceramic Sheet (without retail package)