
Crystal Oscillator HC-49S 8MHz 2-Pin
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Prices updated: 13 Oct 2026
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About this product
An 8 MHz two-pin quartz crystal in the HC-49S package, used as a frequency reference for microcontroller clock circuits. It is normally connected across the oscillator pins of a microcontroller together with two load capacitors, which help set the oscillation frequency.
Specifications
- Frequency
- 8 MHz
- Package
- HC-49S
- Pins
- 2
- Type
- Quartz crystal
Frequently asked questions
Does this crystal need load capacitors?
Most microcontroller oscillator circuits use two load capacitors to ground. Their values should follow the microcontroller datasheet and the load capacitance rating of the crystal.
Will this crystal change the clock speed of my board?
Yes, if the board uses this crystal as its clock source, the clock speed will follow the 8 MHz frequency. Check the board's oscillator pins and supported frequency range before using it.


