WMSIC Electronic Components

TXM8.192M0002491LFDEO00T

ModelTXM8.192M0002491LFDEO00T
PackageHC-49S-SMD
BrandYJX
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
YJX TXM8.192M0002491LFDEO00T
Type
YJX
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TXM8.192M0002491LFDEO00T
Electronic Component
1
Package
HC-49S-SMD
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.96g
Frequency
8.192MHz
Electronic Component
1
Electronic Component
BM0264594688
Operating Temperature
30℃~+85℃
Electronic Component
±30ppm
Crystal Oscillator Type
SMDCrystal 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.

TXM8.192M0002491LFDEO00T 产品概述

一、产品简介

TXM8.192M0002491LFDEO00T 为雅晶鑫(YJX)出品的贴片型晶体单元,中心频率 8.192MHz,采用 HC-49S-SMD 封装,面向要求中高精度频率源的电子设备。器件在常温下频差及频率稳定度均为 ±30ppm,工作温度范围 -30℃ 至 +85℃,等效串联电阻(ESR)为 80Ω,推荐负载电容为 20pF。

二、主要性能参数

  • 晶振类型:贴片晶振(HC-49S-SMD)
  • 标称频率:8.192 MHz
  • 常温频差:±30 ppm
  • 频率稳定度:±30 ppm
  • 负载电容(CL):20 pF
  • 等效串联电阻(ESR):80 Ω
  • 工作温度范围:-30℃ ~ +85℃
  • 品牌:YJX(雅晶鑫)

三、电气与频率使用建议

  • 负载电容匹配:若使用对称并联电容 C1、C2,则满足 CL ≈ (C1·C2)/(C1+C2) + Cstray。以 CL=20pF、典型电路寄生电容 Cstray≈2~5pF 估算,推荐取 C1=C2 ≈ 33pF(常见起始值),实际设计应在样机上调试以达到目标频率。
  • 启振条件:ESR=80Ω 属于中等偏高阻抗,选择带内部振荡支持的 MCU 或专用振荡器芯片时,要确认驱动级能提供足够回路增益。若出现难以启振或起振慢,可考虑减小负载电容或选用增益更高的振荡器输入电路。
  • 串联/并联元件:在需要控制起振幅或抑制过振时,可在晶体与输入之间加小阻值串联电阻;但此举会影响启动时间与相位噪声,须谨慎权衡并实测验证。

四、封装与焊接注意

  • HC-49S-SMD 为贴片式封装,适合贴片装配与回流焊工艺。具体回流温度曲线、焊接时间与工艺参数请参考厂家资料,以免超温导致性能漂移或损伤。
  • 贴装时避免对晶体本体施加机械应力,尤其是焊膏印刷与回流过程中PCB翘曲可能对频率稳定性产生影响。设计焊盘时保证对称焊盘与足够的焊点面积以减少应力和寄生电容差异。
  • 贮存与搬运需防潮防震,避免强烈振动或冲击。

五、典型应用场景

  • 实时时钟(RTC)与低速通信微处理器时钟源
  • 工业控制与传感节点的本振/参考频率
  • 消费电子与家电中对频率精度有中等要求的振荡源
  • 需 8.192MHz 精准分频的数码和通信电路

六、选型与设计注意事项

  • 若应用对温度稳定性或长期老化要求更高(±10ppm 级或航天级),应考虑温补晶振或更高等级产品;当前器件适合±30ppm 级别要求的通用场景。
  • 在电路板布局上,尽量将晶体与对应的振荡输入脚靠近并短连接,避免在走线附近布置高电流或高频干扰源,以减小相位噪声和频率抖动。
  • 需要进一步的温漂曲线、老化数据、回流参数或定制版本(如更严格频差、特殊封装等)时,请联系雅晶鑫或其授权代理获取原厂数据手册与样品。

如需,我可以基于您的目标电路(MCU 型号、板级寄生电容估算、启动时间要求等)给出更细致的元件匹配与布局建议。

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