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SX3B12.000F1510F30是星通时频(SCTF)推出的一款无源贴片石英晶振,针对中低端电子设备的时钟基准需求设计,以小型化封装、稳定的性能参数和成本优势,成为消费电子、工业控制、物联网等领域的常用选型。
该晶振属于SMD3225封装(3.2×2.5mm)无源晶振,基础频率12MHz,主要面向需要稳定时钟信号、且对成本敏感的批量应用场景:
其无源特性(无内部有源器件)决定了成本低于有源晶振,适合大规模贴片生产,同时满足常规环境下的时序稳定性要求。
基础频率为12MHz,常温(25℃)频差±10ppm,换算为实际频率偏移为±120Hz(12MHz×10×10⁻⁶=120Hz)。该指标能保证室温下时钟信号的精度,避免因频率偏差导致的通信误码、时序错位等问题,满足大多数常规电子设备的时钟需求。
标称负载电容为15pF,是无源晶振的通用匹配值。电路设计时需在晶振两端各并联一个15pF陶瓷电容到地,即可实现匹配,无需复杂参数计算,降低设计门槛。
全工作温度范围内的频率稳定度±30ppm,覆盖-40℃~+85℃区间。该指标反映温度变化对频率的影响,极端温度下最大偏移为±360Hz(12MHz×30×10⁻⁶=360Hz),能适应户外、车载等有温度波动的场景,满足工业级环境基本要求。
ESR标称值为100Ω,属于无源晶振中等水平。ESR直接影响振荡电路起振能力和稳定性:100Ω的ESR能与常见单片机内置振荡器、专用振荡电路良好匹配,保证容易起振,且振荡幅度稳定,避免功耗过高或起振失败。
工作温度覆盖**-40℃+85℃**,符合工业级温度标准(商业级一般为0℃70℃),可在低温(北方户外)、高温(夏季车内)环境下稳定工作,环境适应性优于普通商业级晶振。
该晶振采用SMD3225-4P封装(表面贴装4引脚),尺寸约3.2×2.5×0.8mm,具有以下优势:
星通时频(SCTF)是国内专注频率控制元器件的研发生产企业,产品覆盖无源/有源晶振、温补晶振(TCXO)等,广泛应用于通信、工业、消费电子领域。SX3B系列晶振经过严格出厂测试:
该产品符合RoHS 2.0标准,可用于出口产品,满足全球环保要求。
总结:SX3B12.000F1510F30是一款高性价比无源贴片晶振,以稳定性能、小型化封装和成本优势,成为常规电子设备时钟基准的常用选型,适合中低端批量应用场景。
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Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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