WMSIC Electronic Components

YJX TAXD8M2GLFBET2T

ModelTAXD8M2GLFBET2T
PackageHC-49S
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 TAXD8M2GLFBET2T
Type
YJX
Minimum package
200 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXD8M2GLFBET2T
Electronic Component
1
Package
HC-49S
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.7g
Frequency
8MHz
Electronic Component
1
Electronic Component
BM0264209289
Operating Temperature
20℃~+70℃
Electronic Component
±30ppm
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.

TAXD8M2GLFBET2T 无源直插晶振产品概述

一、产品基本定位与品牌背景

TAXD8M2GLFBET2T是雅晶鑫(YJX) 推出的一款HC49S封装直插无源晶振,核心定位为通用中精度时钟源,适配消费电子、小型工业控制、物联网终端等场景。雅晶鑫作为国内专注于石英晶振研发生产的厂商,该型号延续了品牌在低成本、高可靠性通用晶振领域的成熟设计,参数一致性经批量验证,适合中小批量电子设计需求。

二、核心性能参数详解

该型号参数针对通用场景优化,关键指标清晰明确:

  1. 频率特性:标称频率8MHz,常温频差±30ppm(即频率偏差≤240Hz),温度变化下的频率稳定度同样为±30ppm,满足大多数MCU、通信模块的时钟同步需求;
  2. 负载电容:20pF(无源晶振需外接匹配电容,建议采用两个10pF~22pF高频瓷片电容并联,误差≤5%以保证频率精度);
  3. 等效串联电阻(ESR):80Ω,属于常规无源晶振的合理范围,既保证电路易起振,又控制了功耗;
  4. 工作环境:温度范围-20℃~+70℃,覆盖室内常温及部分户外轻工况(如智能家居、小型家电),不支持极端低温/高温场景;
  5. 封装尺寸:HC49S直插封装,常规尺寸为长11.5mm×宽4.5mm×高3.5mm,引脚间距2.54mm,兼容面包板及常规PCB焊接。

三、典型应用场景

因参数均衡、成本可控,该型号广泛用于以下场景:

  1. MCU时钟源:STM32、51单片机、ESP32等主控芯片的外部晶振,提供稳定系统时钟(部分MCU可通过倍频实现更高主频);
  2. 通信模块基准:蓝牙4.0/5.0、WiFi 2.4G模块的参考时钟,保证数据收发同步性;
  3. 消费电子控制:智能灯、温湿度传感器、豆浆机、加湿器等小型家电的控制单元时钟;
  4. 工业小型设备:小型PLC、传感器节点、电机驱动模块的时钟源,满足基础工业环境需求;
  5. 音频同步:MP3解码、语音提示电路的同步时钟,避免音频信号失真。

四、选型与使用注意事项

为保证性能稳定,需注意以下要点:

  1. 负载电容匹配:必须外接20pF左右的匹配电容(建议高频瓷片电容),并联于晶振两端与地之间,避免频率偏移;
  2. 焊接规范:焊接温度控制在300℃~350℃,每个引脚焊接时间≤3秒,防止高温损坏内部石英晶体;
  3. 振动防护:石英晶振对机械振动敏感,安装时远离电机、风扇等振动源,必要时加固定胶;
  4. 环境防护:HC49S为金属壳但无密封,避免暴露在潮湿、腐蚀性气体(如厨房油烟、工业酸碱)中;
  5. 驱动匹配:确认MCU驱动引脚输出能力≥1mA,确保ESR=80Ω时稳定起振。

五、产品优势与适用限制

优势

  • 成本可控:无源晶振无内置振荡电路,成本低于有源晶振,适合批量应用;
  • 安装简单:直插封装,PCB布局无需特殊设计,兼容常规焊接工具;
  • 一致性好:雅晶鑫生产工艺成熟,批量产品的频率偏差、ESR一致性达标;

限制

  • 精度有限:±30ppm不适合高精度场景(如高频通信、测试仪器);
  • 温度范围窄:-20℃~+70℃无法满足极端环境(户外低温、工业高温);
  • 依赖外接电容:需预留电容位置,设计时需考虑匹配参数。

该型号是通用电子设计中8MHz时钟源的高性价比选择,适合对精度要求不苛刻、成本敏感的中小批量项目。

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