The 32.768 kHz clock crystal in a 3.2x1.5mm/2pad ceramic housing is our most affordable 32.768 kHz MINI crystal ever!
The 3.2x1.5mm/2pad SMD crystals of the M3215RR series feature our highly innovative LRT crystal resonators (LOW ESR Resonator Design) with a maximum resistance of 50 kOhm. Each of our products is 100% tested, so we can offer outstanding product quality, maximum lifetime and a very reliable partnership with competent support. Based on our own mold, we can also supply the SMD clock crystals of the M3215RR series at very competitive prices.
We therefore do not necessarily recommend our customers to use 32,768 kHz crystals in smaller housings with the dimensions 2.0x1.2mm or 1.6x1.2mm. This is because these smaller 32.768kHz crystals have a significantly higher resistance (90kOhm), which can lead to massive oscillation problems in many 32.768kHz oscillator stages. In addition, these small clock crystals are significantly more expensive than the 3.2x1.5mm/2pad 50 kOhm LOW ESR crystal of the M3215RR series.
Even if the requirement for miniaturization of the circuit boards is often very high, it is extremely worthwhile to stay with the 32.768kHz crystal in the 3.2x1.5mm/2pad ceramic housing. Also in automotive applications, for which there are also corresponding M3215RR solutions.
M3215RR 32.768 kHz crystals are available with load capacities of 4, 6, 7, 9 or 12.5 pF. Normally from stock.
Link to the M3215RR product configurator
