25MHZ18 V 25MHZ18PF 25MHZ-20PF 25MHZ-20PF/TXC 25MHZ20PFSMD3.2MMX2.5MM 25MHz3.3V 25MHz-3.3V-25PPM 工业级有源晶振 25MHZ-30PPM 25MHZ3225 25MHz3225-3.3V