WMSIC Electronic Components

SX201232768K2QDCZ2T

ModelSX201232768K2QDCZ2T
PackageSMD2012-2P
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 SX201232768K2QDCZ2T
Type
YJX
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
YJX
Electronic Component
SX201232768K2QDCZ2T
Electronic Component
1
Package
SMD2012-2P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.027g
Frequency
32.768kHz
Electronic Component
1
Electronic Component
BM0264498419
Operating Temperature
40℃~+85℃
Electronic Component
±20ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
7pF
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.

SX201232768K2QDCZ2T 贴片晶振产品概述

SX201232768K2QDCZ2T是雅晶鑫(YJX)推出的一款工业级小型化贴片晶振,专为低功耗计时与高精度频率参考场景设计,核心频率32.768kHz(实时时钟RTC的标准基准频率),适配大多数嵌入式系统、智能终端的时钟模块需求。

一、产品基本定位与核心属性

该产品属于低功耗石英贴片晶振,采用SMD2012-2P封装(尺寸2.0mm×1.2mm),是针对高密度PCB设计优化的小型化方案。其核心定位为工业级宽温环境下的高精度计时基准,兼顾低功耗与稳定性,可满足从消费电子到工业控制的多场景需求。

二、关键性能参数解析

1. 频率与频差特性

  • 标称频率:32.768kHz,该频率是RTC模块的通用基准(因2^15=32768,便于分频得到1Hz秒信号),适配STM32、ESP32等主流MCU的RTC外设;
  • 常温频差:±20ppm,即常温(25℃左右)下频率偏差不超过0.00065536Hz,满足日常计时的精度要求(例如每日误差约1.7s,符合消费电子与工业设备的基本计时标准);
  • 频率稳定度:±30ppm,指工作温度范围内(-40℃~+85℃)的频率最大变化量,该参数保障了宽温环境下的计时一致性,避免极端温度导致的频率漂移。

2. 电路匹配与功耗相关参数

  • 负载电容:7pF,是晶振振荡电路设计的关键参数,外围电路需匹配该负载电容以确保稳定振荡(通常需并联1~2pF的微调电容,避免PCB寄生电容影响);
  • 等效串联电阻(ESR):70kΩ,该值反映晶振内部的能量损耗,较低的ESR有助于降低振荡电路的功耗,同时提升起振的可靠性(避免因ESR过高导致起振困难或停振)。

3. 环境适应性

  • 工作温度范围:-40℃~+85℃,覆盖工业级环境的典型温度区间,可用于户外设备、车载电子、工业传感器节点等 harsh 场景;
  • 存储温度:通常雅晶鑫该系列产品存储温度为-55℃~+125℃,保障运输与存储过程中的可靠性。

三、典型应用场景

SX201232768K2QDCZ2T的参数特性使其适配以下核心场景:

  1. 嵌入式系统RTC模块:STM32、ESP32等MCU的实时时钟外设,用于系统时间同步、低功耗定时唤醒(例如物联网节点的周期性数据上报);
  2. 智能穿戴设备:智能手表、手环的计时与闹钟功能,兼顾小型化与宽温稳定性;
  3. 工业控制设备:PLC(可编程逻辑控制器)、远程IO模块的时钟基准,适应工业现场的宽温与振动环境;
  4. 消费电子终端:机顶盒、路由器、智能音箱的系统时间同步,提升设备联网后的时间精度;
  5. 物联网低功耗节点:传感器节点、智能门锁的定时上报功能,低功耗特性延长电池寿命。

四、封装设计与可靠性保障

1. 封装优势

  • SMD2012-2P封装:尺寸仅2.0mm×1.2mm×0.8mm(典型值),体积小、重量轻,适合高密度PCB布局(例如智能穿戴的紧凑主板);
  • 贴片式设计:兼容回流焊工艺,可实现自动化贴装,提升生产效率,降低人工成本;
  • 2引脚结构:电路连接简单,无需额外引脚,减少PCB布线复杂度。

2. 可靠性设计

  • 宽温稳定性:通过温度循环测试(-40℃~+85℃,循环次数符合工业标准),确保极端温度下频率稳定;
  • 抗振动性能:贴片封装的机械强度较高,可承受10g~20g的振动(典型值),适合车载、工业现场等振动环境;
  • 无铅环保:符合RoHS指令与无铅焊接要求,满足全球市场的环保标准。

五、品牌与品质优势

雅晶鑫(YJX)是国内专注于石英晶振研发与生产的企业,SX201232768K2QDCZ2T具备以下品牌优势:

  1. 成熟工艺:采用高精度石英晶体切割与封装工艺,保障频率精度与一致性;
  2. 品质管控:每批次产品经过全参数测试(频率、频差、ESR、负载电容等),不良品率低于0.1%;
  3. 定制化支持:可根据客户需求调整负载电容、频差等参数(例如定制±10ppm频差版本),适配特殊场景需求。

总结:SX201232768K2QDCZ2T是一款高性价比的工业级32.768kHz贴片晶振,兼顾小型化、宽温稳定性与低功耗,适用于从消费电子到工业控制的多场景计时与频率参考需求,是嵌入式系统RTC模块的理想选择。

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