FIELD: radio electronics, applicable in production of resonators and acoustical body-wave filters. SUBSTANCE: piezoelectric element uses a crystal wafer of lanthangallium niobate, whose normal is turned relative to the Y-crystallographic axis up to 25 deg. and relative to the X-ray - up to 10 deg. EFFECT: improved combination of high temperature stability and high electromechanical coupling coefficient. 3 dwg , 1 tbl
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