WMSIC Electronic Components

YJX TAXD32768K2CGDAZT2T

ModelTAXD32768K2CGDAZT2T
PackageDT-38
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 TAXD32768K2CGDAZT2T
Type
YJX
Minimum package
1000 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXD32768K2CGDAZT2T
Electronic Component
1
Package
DT-38
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.159g
Frequency
32.768kHz
Electronic Component
1
Electronic Component
BM0264209316
Operating Temperature
20℃~+70℃
Electronic Component
±20ppm
Crystal Oscillator Type
Through-hole Crystal 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.

TAXD32768K2CGDAZT2T无源晶振产品概述

一、产品基本定位与核心属性

TAXD32768K2CGDAZT2T是雅晶鑫(YJX) 推出的一款直插式无源晶振,型号后缀明确其核心参数:基准频率32.768kHz(计时类晶振的标准频率),封装采用DT-38直插规格。作为无源晶振,其本身无内置振荡电路,需配合外部振荡模块(如MCU内部OSC、专用时钟芯片)实现谐振,是实时时钟(RTC)、低功耗计时设备的核心频率基准组件。

二、核心性能参数深度解析

1. 基准频率与精度控制

该晶振基准频率为32.768kHz,因32768=2¹⁵,经15次二进制分频可直接得到1Hz秒信号,是计时系统的最优选择。常温(25℃)下频差控制在**±20ppm**,即频率波动范围为32.768kHz±0.65536Hz,每日计时误差约0.05秒,满足绝大多数消费电子、工业设备的计时精度需求。

2. 负载电容匹配特性

负载电容为12.5pF,是晶振谐振时需匹配的外部等效电容(含电路寄生电容)。设计时需确保振荡电路总负载电容接近12.5pF,否则会导致频率偏移或起振失败。该参数适配主流MCU(STM32、ATmega)及时钟芯片(DS1302、PCF8563)的默认设计,兼容性极强。

3. 等效串联电阻(ESR)

ESR为30kΩ,是无源晶振的关键性能指标,直接影响振荡稳定性。30kΩ处于32.768kHz无源晶振的常规合理范围,可确保多数振荡电路顺利起振,且振荡信号幅度、相位稳定。

4. 频率稳定度

工作温度范围内(-20℃~+70℃)频率稳定度为**±30ppm**,即温度变化导致的最大频率偏移为32.768kHz±0.98304Hz,满足一般室内、户外常温场景的环境适应性(如办公设备、家电产品)。

三、封装形式与典型应用场景

1. DT-38直插封装优势

DT-38为标准直插式封装,引脚间距符合工业通用标准,安装方式简单(焊接固定于PCB),无需复杂贴装设备,降低生产环节成本与难度,适合对体积要求不苛刻的场景。

2. 典型应用领域

  • 实时时钟(RTC)模块:单片机、嵌入式系统的时间同步(如智能电表、PLC);
  • 低功耗电子设备:智能穿戴(手表、手环计时)、电子闹钟、计时器;
  • 消费电子:机顶盒、路由器、智能家居设备的时钟基准;
  • 工业控制:传感器节点的时间戳记录、小型工业控制器计时。

四、适用环境与可靠性表现

1. 宽温度范围工作

-20℃~+70℃的工作温度覆盖绝大多数室内、户外常温场景,无需额外温度补偿即可稳定计时。

2. 无源晶振的可靠性优势

相比有源晶振(内置振荡电路),无源晶振结构简单(仅晶体谐振器+封装),无主动电子元件,因此:

  • 使用寿命更长(无元件老化问题);
  • 抗干扰性更强(无内置电路电磁干扰);
  • 成本更低,性价比突出。

五、品牌背景与产品优势

雅晶鑫(YJX)是国内专注晶体元器件研发的品牌,产品以参数一致性好、批量供货稳定著称。TAXD32768K2CGDAZT2T作为其经典32.768kHz系列,核心优势包括:

  • 参数一致性:批量生产中频率精度、ESR波动小,适合大规模应用;
  • 成本效益:无源晶振成本远低于同精度有源晶振,降低终端BOM成本;
  • 适配性广:12.5pF负载电容匹配主流芯片,无需额外调整电路参数。

综上,TAXD32768K2CGDAZT2T是一款性能稳定、适配性强、性价比高的32.768kHz直插无源晶振,可广泛应用于各类计时类电子设备。

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