The information content of this article is taken from: http://www.taiheth.com recent years, met to answer any of the procurement minority, just Crystal tiny electronic components, but the circuit board plays a very important role, Of course, buyers of the permeability of the piezoelectric crystal is not understood, here we solve an annoyance Some buyers Inquiry may be just a form, the form is not very detailed stated product suppliers You must know the parameters in order to facilitate the offer, thus providing a little trick. If you do not know the crystal frequency, suppliers can know only to suppliers to provide accurate volume because some crystal volume corresponding frequency and only one (for the the KHZ product). Listed for reference (Note: not marked behind the brand are four corresponding models) volume: 2.05 * 1.05mm Frequency: 32.768KHZ volume: 2.05 * 1.2mm Frequency: 32.768KHZ volume: 2.0 * 1.2mm Frequency : 32.768KHZ (KDS) volume: 2.0 * 1.6mm Frequency: 32.768KHZ (KDS) volume: 3.2 * 1.5mm Frequency: 32.768KHZ (Note: The oscillator is another matter) volume: 4.2 * 1.5mm Frequency: 32.768KHZ volume: 5.0 * 2.0mm Frequency: 32.768KHZ volume: 6.0 * 2.5mm Frequency: 32.768KHZ volume (KDS): 7.0 * 1.5mm Frequency: 32.768KHZ volume: 7.0 * 2.5mm Frequency: 32.768KHZ volume: 7.3 * 2.5mm Frequency: 32.768 the KHZ volume: 8.0 * 2.1mm Frequency: 32.768KHZ (SEIKO Seiko) volume: 8.0 * 3.8mm Frequency: 32.768KHZ volume: 8.7 * 3.7mm Frequency: 32.768KHZ (SEIKO Seiko) volume: 9.2 * 3.4mm Frequency: 32.768KHZ ( KDS) volume: 10.41 * 4.06mm Frequency: 32.768KHZ (EPSON) volume: 13.2 * 4.9mm Frequency: 32.768KHZ (KDS) above SMD crystal volume and only the frequency corresponding table, plug-crystal MHZ KHZ , As for the plug-in crystal series the partakers cylindrical shape and 49 / s shape there is a U-shaped, 49 / S, and U-shaped are MHZ, 49 / S is usually procurement called iron cap shell shape, U-shaped, the name implies, its shape like the U uppercase, so called 49U. When the corresponding table, we did not find what you want volume, may your volume is used MHZ products, for example, 2.5 * 2.0mm, 3.2 * 2.5mm, 5.0 * 3.2mm, 6.0 * 3.5mm, 5.0 * 7.0mm MHZ series of products, we have no way to find out the corresponding frequency MHZ crystal frequency range, not a single frequency. the like appeal listed volume, for example, you can find the engineering department to ascertain their specific frequency, or pin, convenient to confirm whether it is a crystal oscillator active and passive crystal.

keywords: SMD crystal oscillator, crystal frequency, the frequency of the crystal, the crystal role,