Description:

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package.

Specifications:

Crystal Frequency 16MHz 
Model HC-94S
Type DIP

For use in microcontroller clocks e.g. Arduino Uno

Description:

A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal of piezoelectric material to create an electrical signal with a very precise frequency. This frequency is commonly used to keep track of time, to provide a stable clock signal for digital integrated circuit, and to stabilize frequencies for radio transmitters and receivers. 

Standard frequency crystals - use these crystals to provide a clock input to your microprocessor. Rated at 20pF capacitance and +/- 50ppm stability. Low profile HC49/US Package.

Specifications:

Crystal Frequency 16MHz 
Model HC-94S
Type DIP

For use in microcontroller clocks e.g. Arduino Uno