KT2520K26000ZAW18TAS 26MHz温补晶振 2520 1.8V ±3ppm ¥2.50 27.456MHz温补晶振 KT3225F27456ZAW28TA0 2.8V ±500ppb ¥2.80 KT3225F16367ACW30TA0 16.367MHz温补晶振 3V ±500ppb ¥2.80 16.369MHz温补晶振 KT3225F16369ACW28TA0 2.8V ±500ppb ¥2.80 KT3225R40000ECV28TBA 40MHz温补晶振 2.8V ±2.5ppm TCXO晶振 ¥2.80 KT3225T32768DAW33T 32.768KHz温补晶振 3.3V ±3.8ppm TCXO ¥3.50