Products : SMD Crystal Units

[2008-12-23 17:25:09]

Detail Information
Description : Quartz is a device that carries the piezoelectric characteristics. The piezoelectric characteristics of a quartz crystal is briefly explained below:

If a piezoelectric quartz crystal has electrodes plated on opposite faces and if a potential is applied between these electrodes, forces will be exerted on the bound charges within the crystal. If the crystal is properly mounted, deformations take place within the crystal, and an electromechanical system is formed which will vibrate at a resonant frequency when properly excited.
Specification : 1. Frequency tolerance (at 25°C): ±30ppm, ±50ppm.

2. Frequency stability over operating temperature characteristics: ±30ppm, ±50ppm.

3. Storage temperature range: -55 °C to +125 °C.

4. Shunt capacitance (C0): 5.0 pF Max.

5. Driver level (typical): 10?W~100?W.

6. Load capacitance (cl): series, 16pF, 20pF, 30pF, 32pF.

7. Aging @25°CV 1st year (Max): ±3ppm, ±5ppm/year.

8. Shock resistance: drop test of 3 times on 2mm stainless plate from 75cm height.
Features : 1. Small SMD type crystal unit.

2. High reliable environmental performance.

3. Automatic mounting.

4. Reasonable cost.
Source: B2BManufacturers.com
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