1. Shock and vibration
Do not apply excessive shocks, such as transportation, substrate installation or accidental drop and knocking that exceeds the specified mechanical vibration.Otherwise, it may cause the chip to crack or damage the parts used and make it unusable. When applying shocks that exceed the specified vibrations, be sure to Perform characterization.
2. Cleaning
The wafers of Kyocera crystal oscillators may be damaged by the vibration during ultrasonic cleaning. Please confirm beforehand when performing ultrasonic cleaning.
3. Welding conditions
In order to provide product reliability, please use within the recommended conditions
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4. Matters needing attention
The pad of the substrate and the electrode of the product are soldered on the surface. Extreme substrate deformation will cause the pad to peel off, the electrode of the product will peel off, the solder cracks and the damage of the product package part, the performance may be reduced and it will not work, please bend in the specified Use it under conditions, especially when splitting the board after placement. If your product is placed on a large warp position on the substrate, please be careful. When using an automatic placement machine, please choose a model with less impact as much as possible, and use it after confirming that it is not damaged. The original surface mount crystal oscillator does not support wave soldering, please handle with care.
5. Storage
Long-term storage at high and low temperatures and storage at high temperatures will cause deterioration of frequency accuracy and deterioration of weldability. Please ensure the temperature of the storage place, the humidity is -5 °C + 40 °C, and the relative humidity is 40-60 %RH, and keep away from direct exposure, use within 6 months.
6. Other design considerations
(1) The clock crystal oscillator adopts CMOS-IC (CMOS-IC) with built-in anti-static protection circuit, which is the same as ordinary CMOS integrated circuit. Please pay more attention.
(2) There is no internal capacitor between the power supply and ground (+DC-GND), but the KC7050S series has a bypass capacitor between VCC and GND. In order to prevent excessive voltage and prevent overcurrent, please bypass the capacitor (0.01 uF) is placed as close as possible to the (+DC-GND) terminal, but the capacity is a reference value, and the frequency characteristics vary with the capacitor type. Please use a capacitor with appropriate frequency characteristics.
(3) Because applying reverse voltage may cause internal damage, please be careful not to connect the wrong terminal pin.
(4) Please do not use this oscillator under extreme conditions where the vibration or shock conditions exceed the range specified in the product catalog or delivery specifications.
(5) Do not expose this oscillator directly to water or salt water, an environment that produces condensation, or an environment full of toxic gases.
(6) The KC7050S series needs moisture absorption management. After opening, please store it in a moisture-proof environment (25±5°C, within 65%RH), and install it within 7 days.
(7) If the Cl0ck Z series and MC-Z series encounter direct sunlight or LED and other light during operation, frequency fluctuations may occur during this period. Please use it in consideration of the design and environment of the closure. In addition, if it is used in a shading environment, the frequency will not change. Please visit the official website of Kyocera Crystal Oscillator: http://www.xtal.cc/kss.html