Main Features High Mechanical Quality factor and excellent electro-acoustic conversion efficiency, providing high output amplitude. Piezoelectric element offer a high speed of vibration. Through bolt-on presstress, mechanical and amplitude have been improved. Having steady output amplitude even undermarkedly changed loads. Extended temperature use, ensuring good amplitude linearity. Low resonant impedance ensuring high conversion efficiency. Bolt-on pre-stressed design provides fast and easy installation with high reliability. Product CodingTransducers for Ultrasonic CleaningSelection Chart Part NumberRes Freq Res Imp CapDiamSpanPowerUnitskHzOhmpFmmmmWSTC-4AH-2080 80±2<251800 ±10% 242625 STC-4AH-3050 50±1<203400 ±10% 384040 STC-4SS-3528 28±1<203800 ±10% 458050STC-4SH-3528 28±1<204000 ±10% 556850 STC-8SH-352828±1<202900 ±10% 556850STC-4AH-3540 40±1<203800 ±10% 455450 STC-4SH-3540 40±1<204000 ±10% 455050 STC-8SH-354040±1<202900 ±10% 455050STC-8SH-356060±2<202900 ±10% 403850STC-4SH-3825 25±1<204800 ±10% 597260STC-4SH-3828 28±1<204800 ±10% 596760 STC-8SH-382828±1<203200 ±10% 596860STC-4SH-3833 33±1<204800 ±10% 486060 STC-8SH-383328±1<203200 ±10% 486060STC-8SH-383838±1<203200 ±10% 485460STC-4SH-3840 40±1<204800 ±10% 485060 STC-8SH-384040±1<203400 ±10% 485060STC-4SS- 38130 130±2<204800 ±10% 405460 STC-8SS- 38130 130±2<203200 ±10% 385760STC-8SH-452525±1<205100 ±10% 677280STC-8SH-452828±1<205100 ±10% 676880STC-4SS-4530 30±1<207200 ±10% 458280 STC-8SS-453030±1<205100 ±10% 458280STC-4SH-5025 25±1<209000 ±10% 6777100STC-8SH-502525±1<206500 ±10% 6777100STC-4SH-5028 28±1<209000 ±10% 6770100 STC-8SH-502828±1<206500 ±10% 6770100