WMSIC Electronic Components

YJX TAXM32768K4JGDCZT3T

ModelTAXM32768K4JGDCZT3T
PackageMC-306
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 TAXM32768K4JGDCZT3T
Type
YJX
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXM32768K4JGDCZT3T
Electronic Component
1
Package
MC-306
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.159g
Frequency
32.768kHz
Electronic Component
1
Electronic Component
BM0264209305
Operating Temperature
40℃~+85℃
Electronic Component
±20ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
12.5pF
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.

TAXM32768K4JGDCZT3T 无源贴片晶振产品概述

TAXM32768K4JGDCZT3T是雅晶鑫(YJX)推出的工业级无源贴片晶振,核心频率32.768kHz为行业通用计时基准,专为低功耗实时时钟(RTC)及低频定时场景设计,具备小型化封装、宽温稳定等特性,适配多数消费电子、物联网及工业控制设备的计时需求。

一、核心基础参数梳理

该晶振关键参数明确,可支撑精准计时与稳定振荡:

  • 频率基准:32.768kHz(2¹⁵分频天然匹配秒信号,无需复杂算法转换);
  • 频率精度:常温(25℃)频差±20ppm,满足日常计时基础精度;
  • 频率稳定度:±30ppm(含温度、电压等环境变化的总稳定度);
  • 负载电容:推荐12.5pF(无源晶振需外接匹配电容,并联值需接近该值);
  • 等效串联电阻(ESR):50kΩ(该频率下处于合理范围,保证振荡可靠性);
  • 工作温区:-40℃~+85℃(工业级范围,适配复杂环境);
  • 封装与类型:无源贴片晶振,MC-306封装(对应SMD8038_4P规格,4引脚贴片)。

二、封装与物理特性

TAXM32768K4JGDCZT3T采用MC-306小型化贴片封装,对应SMD8038_4P引脚配置(4引脚无外露),尺寸适配常规SMT贴装设备,可有效节省PCB空间。该封装具备以下优势:

  • 高密度布局适配:适合智能穿戴、小型物联网模块等对尺寸敏感的场景;
  • 抗损伤设计:无引脚外露降低机械碰撞风险,提升可靠性;
  • 贴装兼容性:支持回流焊工艺,无需特殊贴装设备。

三、性能特性解析

  1. 精准计时适配
    32.768kHz频率与2¹⁵分频特性天然匹配RTC电路,可直接分频得到1Hz秒信号,简化电路设计的同时,降低系统功耗(如智能手环RTC待机电流仅微安级)。

  2. 宽温稳定可靠
    ±30ppm的频率稳定度覆盖-40℃~+85℃温区,即使在低温(-20℃)或高温(+70℃)环境下,仍能保持计时精度,避免因温度变化导致的时间漂移。

  3. 负载电容匹配性
    12.5pF推荐负载电容明确了外接需求:用户只需选择25pF×2陶瓷电容(并联后≈12.5pF,需考虑PCB寄生电容<1pF),即可实现稳定振荡,降低设计难度。

  4. 低功耗振荡兼容
    50kΩ的ESR与无源晶振特性结合,适配CMOS反相器(如74HC04)或专用RTC芯片(如DS3231),满足智能设备“长期待机”的功耗要求。

四、典型应用场景

该晶振因频率特性与宽温范围,主要应用于:

  • 消费电子:智能手表、手环、蓝牙耳机的RTC计时模块,确保时间同步准确;
  • 物联网设备:低功耗传感器节点、智能家居网关的定时唤醒模块,支持长期待机;
  • 工业控制:PLC定时单元、工业传感器时间戳功能,适配工业现场温湿度变化;
  • 汽车电子:车载导航RTC、胎压监测定时上报(-40~85℃覆盖多数车载场景);
  • 医疗设备:便携式血糖仪、监护仪的计时功能,保证数据时间戳准确。

五、选型与使用注意事项

  1. 负载电容匹配:必须外接两个并联电容,总电容值接近12.5pF(推荐25pF×2);
  2. 振荡电路选择:优先搭配CMOS反相器或专用RTC芯片,确保振荡裕量;
  3. 温区适配:避免超出-40℃~+85℃范围,防止频率漂移或器件损坏;
  4. 贴装工艺:采用常规SMT回流焊,避免手工焊接温度过高损坏晶振。

TAXM32768K4JGDCZT3T以精准的32.768kHz基准、宽温稳定特性及小型化封装,成为RTC及低频定时场景的高性价比选择,可满足多数电子设备的计时需求。

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