These are the smallest precision crystals, at 1.2 x 1.0mm (1210 size) and +/-20ppm across -30 to 85°C, claims Murata, which is aiming them at wireless comms – Wi-Fi and Bluetooth in phones wearables and hearing aids, for example. Called the XRCED series, the firm is trumpeting the equivalent series resistance (ESR) which is 60Ω max. Maximum …
Read full article: Murata crystals are the smallest yet for precision
from Electronics Weekly http://www.electronicsweekly.com/news/products/discretes/murata-crystals-smallest-yet-precision-2017-01/
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