WMSIC Electronic Components

TAXD32768K2BGBBZT2S

ModelTAXD32768K2BGBBZT2S
PackageDT-26
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 TAXD32768K2BGBBZT2S
Type
YJX
Minimum package
1000 袋装

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
TAXD32768K2BGBBZT2S
Electronic Component
1
Package
DT-26
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.06g
Frequency
32.768kHz
Electronic Component
1
Electronic Component
BM0263522163
Operating Temperature
20℃~+70℃
Electronic Component
±10ppm
Crystal Oscillator Type
Through-hole Crystal Oscillator
Load Capacitor
12.5pF
Frequency
±20ppm
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.

TAXD32768K2BGBBZT2S 无源晶振产品概述

TAXD32768K2BGBBZT2S是雅晶鑫(YJX)推出的一款32.768kHz直插无源石英晶振,采用DT-26标准封装,针对低频率时钟基准需求设计,兼顾成本、可靠性与通用性,广泛适配实时时钟(RTC)、消费电子、工业控制等场景。以下从核心属性、电性能、封装、应用等维度展开详细说明。

一、产品基本定位与核心属性

TAXD32768K2BGBBZT2S属于无源石英晶振(无内置振荡电路,需外部匹配电容与振荡电路驱动),型号中核心标识含义:

  • 32768K:标称频率为32.768kHz(全球通用RTC基准频率,1秒=32768个周期);
  • DT-26:直插封装型号;
  • YJX:雅晶鑫品牌。

产品定位为通用型低频率时钟基准元件,核心优势是无有源电路老化风险、成本低,适合对时间精度要求不苛刻的常规场景。

二、关键电性能参数深度解析

1. 频率精度与稳定度

  • 常温频差:±10ppm(25℃下),即32.768kHz的实际频率误差≤±0.32768Hz;
  • 温度稳定度:±20ppm(-20℃~+70℃范围内),误差≤±0.65536Hz。

该精度满足大多数RTC场景需求(例如每日时间误差约1.5秒,符合消费类电子的时间同步要求)。

2. 负载电容与等效串联电阻(ESR)

  • 负载电容:12.5pF(无源晶振需外部并联匹配电容,建议采用两个电容串联/并联,总容值接近12.5pF,若匹配不当会导致频率偏移或无法起振);
  • ESR:40kΩ(32.768kHz无源晶振的常规范围,需确保外部振荡电路增益≥“ESR×负载电容×振荡频率”对应的阈值(约100kΩ·pF·MHz),保证稳定起振)。

3. 工作温度范围

额定工作温度为**-20℃~+70℃**,覆盖一般室内环境、普通工业场景(如小型控制器、智能家居设备),若应用于户外低温(<-20℃)或高温(>+70℃)场景,需更换宽温型晶振。

三、封装形式与物理特性

采用DT-26直插封装,具有以下特点:

  • 引脚间距符合行业标准,便于手工焊接与原型开发,也适配自动化插件设备;
  • 物理尺寸紧凑(参考雅晶鑫官方 datasheet:约2.0mm×6.0mm×3.5mm),适合小型化电子设备布局;
  • 引脚抗干扰性较好,电气连接可靠性高,适合对电磁干扰不敏感的场景。

四、环境适应性与可靠性

无源晶振无内置有源元件,可靠性突出:

  • 无老化失效风险(有源晶振的振荡电路易因温度/时间老化);
  • 机械稳定性强(石英晶体抗振动、抗冲击能力优于陶瓷谐振器);
  • 长期频率漂移小(额定温度范围内,长期漂移通常≤±5ppm/年)。

五、典型应用场景

32.768kHz是RTC的核心频率,TAXD32768K2BGBBZT2S的典型应用包括:

  1. 实时时钟模块:MCU(STM32、ATmega系列)外部RTC晶振、专用时钟芯片(DS1302、PCF8563);
  2. 消费类电子:电子钟、智能手表、计算器、智能家居控制器;
  3. 工业控制:小型PLC、传感器节点的时间基准;
  4. 通信设备:低速率无线模块(LoRa、蓝牙低功耗)的辅助时钟。

六、选型与使用注意事项

  1. 负载电容匹配:必须使用总容值为12.5pF的匹配电容(建议两个6.8pF或8.2pF电容并联,实际值接近12.5pF);
  2. 起振故障排查:若电路无法起振,需检查晶振ESR是否超标(损坏时ESR会急剧升高至几百kΩ),或调整振荡电路增益;
  3. 温度范围适配:户外/极端温度场景需选择宽温型(-40℃~+85℃)晶振;
  4. 焊接规范:焊接温度≤260℃,焊接时间≤3秒,避免高温损坏晶体。

TAXD32768K2BGBBZT2S凭借稳定的32.768kHz频率、常规封装与成本优势,成为通用RTC场景的高性价比选择,适用于大多数需要低成本时钟基准的电子设备。

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