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YJX TAXM20M4QLDCDT2T
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YJX TAXM20M4QLDCDT2T
- Type
- YJX
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YJX
- Electronic Component
- TAXM20M4QLDCDT2T
- Electronic Component
- 1
- Package
- SMD5032-4P
- Electronic Component
- Passive Crystal Oscillator
- Electronic Component
- 0.53g
- Frequency
- 20MHz
- Electronic Component
- 1
- Electronic Component
- BM0264778339
- Operating Temperature
- 40℃~+85℃
- Electronic Component
- ±20ppm
- Crystal Oscillator Type
- SMDCrystal Oscillator
- Load Capacitor
- 20pF
- Frequency
- ±20ppm
- 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.
TAXM20M4QLDCDT2T 产品概述
一、产品简介
TAXM20M4QLDCDT2T 是雅晶鑫（YJX）推出的一款国产贴片晶振，标准频率 20.000 MHz，适用于各类微控制器、收发器及精密时钟电路。器件采用 SMD5032-4P 封装，尺寸小、可靠性高，工作温度范围宽，面向需要中高精度时钟源的工业与消费电子应用。
二、主要技术指标
- 频率：20.000 MHz
- 常温频差（Initial Tolerance）：±20 ppm
- 频率稳定度（含温度偏移）：±20 ppm
- 负载电容：20 pF
- 等效串联电阻（ESR）：40 Ω
- 工作温度：-40 ℃ ~ +85 ℃
- 类型：贴片晶振（SMD）
- 品牌：YJX（雅晶鑫）
- 产地：全国产
三、封装与机械特性
封装为 SMD5032-4P，体积紧凑，适配常见 SMT 贴片工艺。器件底部为金属焊盘，便于回流焊接及自动化贴装。安装时建议留出合理焊盘和过孔设计，以保证良好焊接可靠性及热循环性能。
四、应用建议与选型要点
- 负载电容匹配：若板上寄生电容（含封装与走线）约 2–5 pF，建议两侧并联电容 C1=C2 取约 30–36 pF（依据公式 CL = (C1·C2)/(C1+C2) + Cstray 调整）以实现标称 20 pF 负载。
- ESR 与起振：40 Ω 的 ESR 对多数 MCU 和逻辑振荡器来说为可接受范围，但对于要求超快起振或低驱动功率的设计，应核对主控器件的晶振驱动能力并在样机阶段验证起振时间与稳定性。
- 布局建议：晶体走线尽量短、对称，远离高频电源与大电流回路；地线要完整，避免通过敏感走线回流，必要时在晶体附近布置去耦与屏蔽。
- 温度与精度：±20 ppm 的常温频差与稳定度适合工业级控制与通信，但对需更高精度（如精密计时/测距）的应用应考虑温补或更高等级晶振。
五、焊接与存储注意事项
器件适用于常见 SMT 回流焊工艺；具体回流温度曲线请参照厂家建议。存储时避免潮湿与强振动，长时间储存前建议遵循干燥防潮措施并在封装期内使用。
六、典型应用场景
- 工业控制器及 PLC 时钟源
- MCU/MPU 主振荡器（20 MHz 外部晶振）
- 通信设备本振参考（中速数字收发）
- 测试测量仪器与消费电子时钟系统
总结：TAXM20M4QLDCDT2T 以其国产供应链优势、紧凑封装和 ±20 ppm 的频率性能，为需要稳定 20 MHz 时钟源的中高端应用提供了经济可靠的选择。选型时应关注负载电容匹配、ESR 对起振的影响及电路布局以确保最佳性能。
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