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YXC X49SD8MSD2SI Crystal Oscillator X49SD8MSD2SI
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YXC X49SD8MSD2SI
- Type
- YXC Yangxing Technology
- Minimum package
- 200 个
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YXC
- Electronic Component
- X49SD8MSD2SI
- Electronic Component
- 1
- Package
- HC-49S
- Electronic Component
- Passive Crystal Oscillator
- Electronic Component
- 0.574g
- Frequency
- 8MHz
- Electronic Component
- 1
- Electronic Component
- BM0228695600
- Operating Temperature
- 40℃~+85℃
- Electronic Component
- ±20ppm
- Crystal Oscillator Type
- Through-hole Crystal Oscillator
- Load Capacitor
- 20pF
- Frequency
- ±30ppm
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
X49SD8MSD2SI 产品概述
一、产品简介
X49SD8MSD2SI 为 YXC（扬兴科技）出品的无源直插晶振，采用通用 HC-49S 封装，工作频率 8.000 MHz。该器件为经典的直插（直立式）石英晶体，面向单片机时钟源、嵌入式系统与各类振荡电路，兼顾易安装与长期稳定性，适用于需高精度时基的工业与民用电子设备。
二、核心参数
- 晶振类型：无源晶振（直插）
- 频率：8 MHz
- 室温频差（Initial Tolerance）：±20 ppm（常温）
- 负载电容（CL）：20 pF
- 频率稳定度（综合温漂）：±30 ppm（-40℃ ~ +85℃）
- 工作温度范围：-40℃ ~ +85℃
- 封装：HC-49S（直插）
- 品牌：YXC 扬兴科技
三、产品特点
- 高精度：常温频差仅 ±20 ppm，保证系统基准时钟精确性。
- 宽温域稳定：在-40℃～+85℃工作范围内总体稳定度为 ±30 ppm，适合工业级应用。
- 通用封装：HC-49S 直插形式便于手工焊接与波峰焊装配，维修更换方便。
- 无源结构：便于与各种晶体振荡器电路（如 Pierce）配合使用，兼容性强。
四、典型应用
- 单片机/微控制器（MCU）时钟源
- 嵌入式系统与工控设备的时基电路
- 通信设备、传感器节点与仪器仪表的频率参考
- 需要稳定计时与同步的消费类与工业电子产品
五、设计与使用建议
- 负载电容选择：对称两端并联电容 C1、C2 与晶体并联到地，满足 CL = (C1·C2)/(C1+C2) + Cstray。建议在 PCB 布局及寄生电容（约 2–5 pF）考虑下，典型 C1=C2 取 33 pF 左右可获得接近 20 pF 的实际负载。
- 布局要求：晶体与 MCU 晶振引脚尽量靠近，走线短且对地回流良好，避免强信号线与高频器件串扰。
- 驱动与匹配：根据所用振荡器电路（MCU 内部/外置）选择合适的反馈电阻与起振条件，避免过驱动造成频率漂移或损伤晶体。
- 焊接注意：避免长时间高温烘烤或多次重焊，应按器件手册推荐的焊接工艺进行。
六、可靠性与质量控制
YXC 扬兴科技对出厂晶振通常进行频率测试与筛选，经历温度循环、振幅/启动性能检测与机械可靠性验证。建议在关键应用中参考厂方完整数据表并索取试样验证。
七、结论
X49SD8MSD2SI 是一款面向工业级应用的 8 MHz 无源直插晶振，具备良好的频率精度与宽温域稳定性，封装通用、易于装配，适合用于单片机时钟、嵌入式系统与各类需稳定时基的电子设备。选型时请依据实际电路的负载电容、驱动能力与环境条件，参照厂方完整规格书完成最终验证。
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