Update: 28 September, 2023
This document provides specifications for a Quartz Crystal Unit HC-49/U-S-SMD product. The product has a nominal frequency of 4.000 MHz, operates in a fundamental mode of oscillation, has a frequency tolerance of ±30 PPM at 25°C, can operate in a temperature range of -40 to +85 ºC, can be stored in a temperature range of -55 to +125 ºC, has an aging rate of ±3 PPM max per year, a load capacitance of 18 pF, an equivalent series resistance of 120 ohms max, and a maximum drive level of 500 uW.
File format: PDF
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MD5 Checksum: 0B2CF1137B626A8A847312D52E690652
Publication date: 12 April, 2012
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PDF Link: AKER - aker-usa.com 11-3 Chien-Kuo Rd T.E.P.Z. 4027 Taiwan ROC CAA-4.000-18-3050-X Quartz Manual PDF