WMSIC Electronic Components

TAXDM49152M2GLFCET2T

ModelTAXDM49152M2GLFCET2T
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 TAXDM49152M2GLFCET2T
Type
YJX
Minimum package
200 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXDM49152M2GLFCET2T
Electronic Component
1
Package
HC-49S
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.545g
Frequency
4.9152MHz
Electronic Component
1
Electronic Component
BM0264594695
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.

TAXDM49152M2GLFCET2T 无源晶振产品概述

TAXDM49152M2GLFCET2T是雅晶鑫(YJX)推出的一款工业级HC49S直插无源晶振,专为需要稳定4.9152MHz时钟基准的电子电路设计,兼顾精度、可靠性与成本优势,适配多种常规及工业应用场景。

一、产品基本定位与核心特性

该晶振属于无源石英晶体谐振器,无需外部电源即可工作,核心特性聚焦于宽温范围稳定输出与常规精度适配:

  • 采用标准HC49S直插封装,安装便捷,适配传统PCB焊接工艺;
  • 频率覆盖4.9152MHz(串口通信、单片机时钟常用衍生频率);
  • 支持-40℃~+85℃工业级工作温度,适应户外、车间等复杂环境;
  • 低等效串联电阻(ESR)设计,保证电路易起振、输出稳定。

二、关键性能参数详解

该晶振的核心参数直接决定其应用适配性,具体如下:

  1. 频率与精度:标称频率4.9152MHz,常温(25℃)频差±20ppm(即频率偏移≤98.3Hz),满足大多数常规通信、控制电路的精度需求;
  2. 频率稳定度:全温范围(-40℃~+85℃)相对于常温的频率变化为±30ppm(最大偏移≤147.5Hz),保证宽温环境下的输出一致性;
  3. 负载电容:20pF(无源晶振需外接匹配电容,通常在引脚与地之间并联两个电容,总等效负载电容需接近20pF);
  4. 等效串联电阻(ESR):80Ω,属于常规无源晶振的ESR范围,可降低电路起振难度,减少对驱动能力的要求;
  5. 工作温度范围:-40℃~+85℃,符合工业级器件标准,可在低温(如北方户外)、高温(如车间设备)环境下稳定工作。

三、封装与可靠性设计

该晶振采用HC49S直插封装,具有以下可靠性优势:

  • 封装结构:金属外壳+陶瓷基座,防护性强,可有效隔离外部电磁干扰与机械应力;
  • 引脚设计:双直插引脚(间距约2.54mm),焊接牢固,不易脱落,适配常规通孔焊接工艺;
  • 宽温可靠性:石英晶体本身的温度特性经过优化,结合封装防护,可在全温范围内保持参数稳定,无明显性能衰减。

四、典型应用场景

TAXDM49152M2GLFCET2T因频率特性与宽温优势,广泛应用于以下领域:

  1. 单片机时钟系统:8位/16位单片机(如51系列、AVR系列)的外部时钟基准,4.9152MHz可轻松分频得到常用波特率(如9600bps、19200bps);
  2. 串口通信电路:UART、RS232等串口模块的时钟源,保证数据传输的波特率精度;
  3. 工业控制设备:PLC、传感器模块、电机控制器等工业设备的时钟基准,适应车间-40℃~+85℃的环境变化;
  4. 低速率无线通信:FSK、ASK等低速率无线模块的频率源,满足短距离数据传输的频率稳定性要求;
  5. 消费电子控制:小型家电(如加湿器、遥控器)、玩具的控制电路时钟,兼顾成本与性能。

五、选型与使用注意事项

为保证该晶振的性能稳定,使用时需注意以下要点:

  1. 负载电容匹配:必须外接两个匹配电容(通常为15pF~22pF,需根据电路寄生电容调整),总等效负载电容接近20pF,否则会导致频率偏移;
  2. 焊接工艺:焊接温度不超过260℃,单个引脚焊接时间不超过3秒,避免高温损坏晶体;
  3. 电路布局:晶振应尽量靠近单片机的XTAL1/XTAL2引脚,走线长度控制在1cm以内,避免与高频信号线并行,减少电磁干扰;
  4. 环境防护:避免将晶振安装在靠近强磁场(如电机、变压器)或高频辐射源的位置,防止频率偏移;
  5. 无源晶振特性:无源晶振需外接电容才能起振,若电路中未匹配电容,可能无法正常输出时钟。

该晶振凭借稳定的性能、工业级宽温与常规成本,成为4.9152MHz时钟基准的主流选择之一,适配多种电子电路的设计需求。

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