We can supply quality crystal units. Features: 1) Frequency range: 30,000kHz ∼ 200,000kHz 2) Resonant impedance: 30 ∼ 50kΩ 3) Frequency tolerance: ±20ppm, ±30ppm, ±50ppm,± 100ppm 4) Temperature tolerance: ±10, ±20, ±30ppm 5) Operating temperature: -10±+60oC 6) Storage temperature: -20±+70oC 7) Load capacity: 12.5pF 8) Max. drive level: 1μW 9) Dimensions: 8.0 x 3.8 x 2.5mm