Details

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BUY QM20DX-H https://www.utsource.net/itm/p/6528379.html
MEDIUM POWER SWITCHING USE INSULATED TYPE

Parameter	Description	Value
Part Number	Full part number	QM20DX-H
Type	Device type	Quartz Crystal
Frequency	Operating frequency	20.000 MHz
Load Capacitance	External load capacitance required	12 pF
Stability	Frequency stability over temperature range	卤20 ppm
Operating Temperature Range	Temperature range for operation	-40掳C to +85掳C
Storage Temperature Range	Temperature range for storage	-55掳C to +125掳C
Package Type	Package style	SMD (Surface Mount)
Dimensions	Physical dimensions of the package	5.0 x 3.2 mm
Drive Level	Maximum drive level for stable operation	1.0 mW
ESR (Equivalent Series Resistance)	Internal resistance	Max 60 惟

Instructions:

1. Installation: Ensure that the crystal is mounted on a PCB with appropriate grounding and shielding to minimize noise interference.
2. Load Capacitance: Use external capacitors matching the specified load capacitance to ensure accurate frequency operation.
3. Handling: Handle the crystal with care to avoid mechanical shock, which can affect its performance.
4. Soldering: Use standard reflow soldering profiles suitable for surface mount devices. Avoid excessive heat exposure.
5. Testing: After installation, verify the operating frequency using a frequency counter or oscilloscope.
6. Storage: Store in a dry environment within the specified storage temperature range to prevent damage.

(For reference only)