WMSIC Electronic Components

YJX TAXM12M2GLFBET2T

ModelTAXM12M2GLFBET2T
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 TAXM12M2GLFBET2T
Type
HC-49S-SMD
Minimum package
1000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXM12M2GLFBET2T
Electronic Component
1
Package
HC-49S-SMD
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.96g
Frequency
12MHz
Electronic Component
1
Electronic Component
BM0264498427
Operating Temperature
20℃~+70℃
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.

TAXM12M2GLFBET2T无源贴片晶振产品概述

TAXM12M2GLFBET2T是雅晶鑫(YJX)推出的一款无源贴片石英晶振,针对中低端频率控制需求设计,兼顾性能稳定性与量产成本,广泛适配消费电子、工业控制及通信接口等场景。

一、核心身份与品牌定位

该型号隶属于雅晶鑫(YJX)常规商业级晶振产品线,明确为无源贴片类型(无内置驱动电路,需外接振荡电路)。型号后缀“TAXM12M2GLFBET2T”中,“12M”直接对应核心振荡频率12MHz,“SMD”标识贴片封装,符合自动化贴装需求。雅晶鑫作为国内专注石英晶振研发生产的厂商,该系列产品以“高性价比+稳定供货”为核心优势,适合中小批量及量产项目。

二、关键性能参数详解

  1. 基础频率与精度
    核心振荡频率为12MHz,是单片机、串口通信等领域的经典频率(如51系列MCU、STM8系列常用12MHz时钟);常温(25℃)频差为**±30ppm**,换算为实际频率偏差为±360Hz(12MHz×30×10^-6),可满足大部分消费电子、工业控制的精度要求(如RS232通信要求频差<50ppm,蓝牙低功耗模块要求<100ppm)。

  2. 负载电容与振荡稳定性
    负载电容为20pF,无源晶振需外接两个20pF陶瓷电容(分别接于晶振引脚与地之间),电容选型需与该参数匹配——若负载电容偏差过大,会导致振荡频率偏移、甚至停振;等效串联电阻(ESR)为50Ω,属于常规无源晶振的中等水平,可保证振荡裕量,避免温度变化时出现停振问题。

  3. 环境稳定性
    频率稳定度为**±30ppm**(-20℃+70℃范围内),即温度从-20℃升至+70℃时,频率波动不超过±360Hz;工作温度范围为**-20℃+70℃**,覆盖常规商业级应用场景(如室内设备、一般户外传感器节点),不支持极端低温(如-40℃以下)或高温(+85℃以上)环境。

三、封装与电路适配

该型号采用HC-49S-SMD封装,是传统插件HC-49S的贴片化版本,尺寸紧凑(约5.0×3.2×2.0mm),引脚布局兼容部分插件设计,适合自动化贴装(SMT)生产线,可降低人工成本。

电路适配核心注意事项:

  • 无源晶振需配合MCU内部的反相振荡电路使用(需开启MCU的晶振模块);
  • 必须外接两个20pF陶瓷电容,电容需靠近晶振引脚放置,减少寄生电感影响;
  • 避免晶振附近存在强电磁干扰源(如电源模块),防止频率偏移。

四、典型应用场景

  1. 单片机系统:8位/16位MCU(如AT89C51、STM8S003)的时钟源,满足串口通信(UART)、定时器、ADC采样等功能的频率需求;
  2. 消费电子:智能手环/手表的辅助时钟、蓝牙低功耗(BLE)模块的参考时钟(部分BLE模块支持12MHz输入);
  3. 工业控制:小型PLC、传感器节点(如温湿度传感器)的时钟基准,适应车间-20℃~+70℃的环境;
  4. 通信接口:RS232/RS485接口转换器、USB转串口模块的时钟源,保证数据传输误码率符合要求。

五、选型建议与注意事项

  1. 场景适配:仅推荐常规温区(-20℃~+70℃)应用,极端环境需选择宽温型晶振;
  2. 外围电路:严格匹配20pF负载电容,不可使用10pF、30pF等非匹配电容;
  3. 驱动要求:无源晶振无内置驱动,需确认MCU具备外部晶振振荡电路(部分低成本MCU可能无此功能)。

总结:TAXM12M2GLFBET2T是一款高性价比无源贴片晶振,以12MHz为核心频率,兼顾精度、成本与量产适配性,适合常规商业级应用场景的频率控制需求。

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