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Q22FA12800489
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- EPSON Q22FA12800489
- Type
- EPSON
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- EPSON
- Electronic Component
- Q22FA12800489
- Electronic Component
- 1
- Package
- SMD2016-4P
- Electronic Component
- Passive Crystal Oscillator
- Electronic Component
- 0.028g
- Frequency
- 24MHz
- Electronic Component
- 1
- Electronic Component
- BM0264490029
- Operating Temperature
- 40℃~+85℃
- Electronic Component
- ±10ppm
- Crystal Oscillator Type
- SMDCrystal Oscillator
- Load Capacitor
- 12pF
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
Q22FA12800489 产品概述
一、产品简介
Q22FA12800489 是爱普生（EPSON）出品的一款贴片晶振，标准频率为 24.000 MHz，封装为 SMD2016-4P（常见 2.0 × 1.6 mm 片式封装）。器件面向 PCB 表面贴装，适用于需高精度时钟源的各类电子设备。常温频差标称 ±10 ppm，适合对频率精度有中高要求的系统。
二、主要技术参数
- 晶振类型：贴片晶振（Surface Mount）
- 频率：24 MHz
- 常温频差：±10 ppm（室温参考）
- 负载电容：12 pF
- 等效串联电阻（ESR）：80 Ω
- 工作温度范围：-40 ℃ ~ +85 ℃
- 封装：SMD2016-4P
- 品牌：EPSON（爱普生）
三、适用场景
适用于微控制器时钟源、通信设备频率参考、消费电子、测量仪表和嵌入式系统等。24 MHz 常用于 MCU 外部晶体、USB/以太网 PHY 及射频前端参考时钟等场合。注意确认目标电路的振荡器驱动能力能匹配 ESR 及负载要求。
四、设计与布局建议
- 负载电容选择：两端并联接地的 C1、C2 等效负载为 Ct = (C1·C2)/(C1+C2) + Cstray。若取 C1 = C2 = C，则 CL ≈ C/2 + Cstray，故推荐 C ≈ 2·(CL − Cstray)。例如 CL=12 pF，若 PCB 寄生电容约 2–5 pF，可选 14–20 pF 的电容。
- 布局原则：晶振与 MCU/振荡器引脚保持最短走线，走线避开高速信号和大电流回路；两端负载电容靠近 MCU 引脚布置；在晶振附近保留完整接地平面以降低 EMI。
- 启振与 ESR：ESR=80 Ω 属中等偏高值，可能导致启动时间延长或在驱动能力不足时无法稳定振荡，设计时需确认驱动电路的驱动能力与谐振回路匹配。
五、可靠性与注意事项
- 温度范围 -40~+85 ℃ 为器件工作范围，频率随温度可能变化，完整温漂与老化特性请参照厂方详细资料。
- 焊接与存储：建议按厂家回流焊工艺与湿敏等级（MSL）要求执行，避免超温或潮湿导致性能退化。焊接前后避免强机械应力作用于封装。
- ESD 和机械冲击需按设计规范防护，关键应用建议做振荡器输出与系统时钟验证。
六、选型与采购建议
在最终选型前，核对完整数据手册获取：频率温漂曲线、启动电流/时间、封装尺寸图、回流焊曲线及环境可靠性测试结果。若系统对启动时间、振幅或频率稳定性有更高要求，可与供应商沟通是否有低 ESR、不同负载电容或更窄容差的替代型号。
总结：Q22FA12800489 为一款小型、精度不错的 24 MHz 贴片晶振，适合多数中高精度时钟应用；在设计时需注意负载电容匹配、PCB 布局与振荡器驱动能力，以确保可靠启动与长期稳定运行。若需更详细的封装图与电气特性，请参考 EPSON 官方规格书。
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