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YJX T49S8MLDBE2X
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YJX T49S8MLDBE2X
- Type
- YJX
- Minimum package
- 200 袋装
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YJX
- Electronic Component
- T49S8MLDBE2X
- Electronic Component
- 1
- Package
- HC-49S
- Electronic Component
- Passive Crystal Oscillator
- Electronic Component
- 0.544g
- Frequency
- 8MHz
- Electronic Component
- 1
- Electronic Component
- BM0264209309
- Operating Temperature
- 20℃~+70℃
- 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.
T49S8MLDBE2X 产品概述
一、产品简介
T49S8MLDBE2X 为雅晶鑫（YJX）出品的全国产直插晶振，封装为常见 HC-49S 插件形式，标称工作频率 8.000 MHz。该系列晶振针对通用电子设备时钟源与微控制器振荡器设计，具有良好的频率精度与温度适应性，适合批量装配与现场维修替换。
二、主要性能参数
- 晶振类型：直插晶振（HC-49S，插件）
- 频率：8.000 MHz（标称）
- 常温频差（25℃）：±20 ppm
- 频率稳定度（代表温度范围内）：±30 ppm
- 负载电容：20 pF（建议）
- 等效串联电阻（ESR）：80 Ω（典型）
- 工作温度范围：-20 ℃ ～ +70 ℃
- 品牌：YJX（雅晶鑫）
注：按最坏情况叠加，常温偏差与温度稳定度合成后最大可能偏差约 ±50 ppm，请在精度要求较高的系统中预留裕量。
三、产品特点与适用场景
- 标准 HC-49S 封装，插装便捷，适合维修与小批量装配。
- 8 MHz 常见频率，广泛用于单片机（MCU）系统、实时时钟、通信模块、测量仪器及消费电子。
- 20 pF 负载电容与较小 ESR 对多数 CMOS 振荡器输入结构兼容性较好。
- 工作温度覆盖常温及轻工业环境（-20～+70℃），适用于家电、工业控制与仪器仪表等。
四、设计与使用建议
- 推荐振荡电路：晶体两端各并联一只接地的负载电容（C1、C2），其等效负载满足 CL = (C1·C2)/(C1+C2) + Cstray ≈ 20 pF，其中 Cstray（夹杂电容）通常为 2–5 pF。
- ESR 对启动时间与振荡幅度有影响：80 Ω 的 ESR 在低增益振荡器上可能导致启动较慢或无法稳定振荡，选型时请核对 MCU 内部振荡器驱动能力或使用外部放大器。
- 焊接与安装：HC-49S 为插件件，常规波峰/手工焊接即可，避免长期高温直烙接触，焊接时尽量缩短热暴露时间并保持良好接地布线以降低杂散电容。
- 温漂与频率校准：若应用对频率精度要求高（如通信或高精度计时），建议在系统级进行温度补偿或软件校准。
五、包装、质量与订购建议
- 封装：HC-49S 插件式，便于手工装配与替换。
- 质量控制建议：采购时可要求批次出货频率测试报告与ESR测量值以确保一致性。
- 若需替代或匹配更严苛环境（更宽温度范围、更低 ESR 或更高稳定度），建议向供应商咨询相应工业级或精密型产品。
T49S8MLDBE2X 以其成熟的封装形式与均衡的电气参数，适合大多数通用振荡需求，是性价比较高的 8 MHz 直插晶振选择。若需更具体的电气特性曲线或机械尺寸图，请提供订购批次或联系雅晶鑫技术支持获取完整数据手册。
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