Refers to a package with leads. When the device is mounted on a PCB, the leads go through the board
pF
The abbreviation for "PicoFarad" used to describe a fractional part 10-12 (one-trillionth) of one Farad. Pico: A prefix used to describe a sub-multiple of a number. One Pico is one-trillionth 10-12 of a unit.
PIEZOELECTRIC EFFECT
A voltage produced between surfaces of solid dielectric (non-conducting substance) when a mechanical stress is applied to it. A small current may be produced as well. Certain crystals exhibit the effect.
PPM
The abbreviation for "Parts Per Million" a method of calculation used to specify the permissible frequency deviation of a crystal or oscillator. May also be seen as "PPM". Both are correct.
PULLABILITY
The amount the frequency can be made to deviate by varying the voltage on the control pin.
