HCX-4SB Datasheet, PDF (8/8 Pages) Shenzhen Luguang Electronic Technology Co., Ltd – SMD Quartz Crystal Resonator

HCX-4SB(27MHz)
SMD Quartz Crystal Resonator
5. COVER TAPE ADHESION STRENGTH
6. Note
1. Only the lead should be heated when soldering.
In case that the package temperature is exceeding 150°C , it may impair the crystal or may cause the crystal
quartz to destroy.
2. Pulling the lead strongly may cause cracking of the hermetic grass seal bending the lead closely from the case
may also cause same problem, so when the lead needs to be bent, please leave move than 05.mm of lead from
the case.
3. Too much shock or vibration is not allowed. According to conditions such as machine shock during the
assembly, the internal quartz crystal might be damaged.
Please check your conditions carefully when using it in advance.
4. Don't storage or use in the environment that temperature may change rapidly to avoid the condensation. And
also we recommend to storage the products in the normal environment. (Temperature, humidity)
5. This product can be subjected to ultrasonic cleaning. However, since the oscillator may be affected depending
on the condition, be sure to check it.
6. Applying excessive drive level to the quartz crystal may cause deterioration for characteristics or damage.
Circuit design must be such as to maintain a proper drive level.
7. Unless adequate negative resistance is allocated in the oscillation circuit, startup time of oscillation may be
increased or no oscillation may occur. In order to avoid this, provide enough negative resistance in the circuitry
design.
SHENZHEN LUGUANG ELECTRONIC TECHNOLOGY CO.,LTD.