There are many commonly used crystal oscillator package types and sizes in photovoltaic inverters, with frequently used frequency points such as 10MHz, 16MHz, 20MHz, 32.768KHz, etc.
 

Regarding the timing function, the passive surface - mount crystal oscillator SMLF - 3215 (9CAA32768122TF) series is recommended. This type of crystal oscillator adopts advanced photolithography technology, featuring high precision and low power consumption. It can provide accurate and stable clock signals for photovoltaic inverters.
In terms of passive crystal oscillator selection, industrial - grade crystal oscillators are recommended. This series of crystal oscillators belongs to wide - temperature crystal oscillators, with an operating temperature range of - 40~+85℃. They have high frequency stability, which can effectively prevent malfunctions of photovoltaic inverters in harsh natural environments.

For active crystal oscillators, high - temperature - resistant crystal oscillators are recommended. Their operating temperature range is - 40~+105℃, with high precision and high stability. They can effectively improve the performance stability and working life of photovoltaic inverters.