KNOWLEDGE BASE · HuaXinGou
Crystal Oscillators: Specs & Sourcing Guide
Crystal and oscillator buying guide: frequency, load capacitance, ppm, package and sourcing.
Crystal and oscillator buying guide: frequency, load capacitance, ppm, package and sourcing.
Crystals and oscillators provide the timing heartbeat of every system. This guide covers specs and procurement.
By Vigny (深圳市华芯购电子有限公司) · Published 2026-09-27 · Data verified 2026-09-29 · Sources: manufacturer datasheets & HuaXinGou stock verification
A crystal (e.g., 8MHz, 32.768kHz) needs an external oscillator circuit; an oscillator (XO) integrates the circuit for a plug-and-play clock. TCXO/OCXO add temperature stability.
Frequency, load capacitance (CL), frequency tolerance (ppm), ESR, operating temperature and package (HC-49S, 3225, 2016).
MCU clocks, RTC (32.768kHz), Ethernet PHY (25MHz), USB (12MHz), wireless modules (TCXO).
Crystals are commodities with short lead times; TCXO/OCXO have longer lead times. HuaXinGou sources brand options (Epson, TXC, YXC, domestic) with batch traceability.
Paste your part list below — our team verifies stock, date codes and alternates, then replies with a consolidated quote. Call/WeChat also available.