WMSIC Electronic Components

HCI(杭晶) 3131M-32.768DTTLRRL

Model3131M-32.768DTTLRRL
PackageSMD3215-2P
BrandHCI
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

13 specifications

Core information

Product name
HCI 3131M-32.768DTTLRRL
Type
HCI
Minimum package
200 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HCI
Electronic Component
3131M-32.768DTTLRRL
Electronic Component
1
Package
SMD3215-2P
Electronic Component
0.038g
Electronic Component
1
Electronic Component
BM0264340510
Electronic Component
Electronic Component
Electronic Component
200

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

HCI 3131M-32.768DTTLRRL 贴片晶振产品概述

杭晶(HCI)3131M-32.768DTTLRRL是一款针对实时时钟(RTC)场景优化的工业级贴片晶振,凭借稳定的频率特性、小体积封装及宽温可靠性,广泛适配消费电子、工业控制、物联网等多领域设备。

一、产品定位与核心价值

该晶振以32.768kHz(RTC系统的标准基准频率,分频后可直接输出1Hz秒信号)为核心,主打高稳定性、低功耗、小体积三大核心价值,解决传统晶振在温湿度变化、振动环境下的频率漂移问题,同时满足小型化设备的空间集成需求。

二、基础参数详解

参数项 规格值 关键意义 晶振类型 贴片晶振(SMD) 适配自动化SMT生产,无需手工焊接,适合批量制造 标称频率 32.768kHz RTC场景的标准频率,电路设计简单,分频即可实现秒级计时 常温频差 ±5ppm 25℃环境下频率偏差为百万分之五,秒级误差约0.16ms,满足日常计时精度需求 负载电容 12.5pF 晶振工作所需的外部匹配电容(需结合电路寄生电容计算),直接影响频率稳定性 频率稳定度 ±5ppm -40℃~+85℃范围内频率变化≤±5ppm,温度特性优于普通消费级晶振(多为±10ppm以上) 等效串联电阻(ESR) 70Ω 晶振内部损耗电阻,值越小信号衰减越小,70Ω在同类产品中属于中等偏优水平 工作温度范围 -40℃~+85℃ 覆盖工业级温度区间,可适应户外、车间等 harsh 环境 封装 SMD3215 尺寸3.2mm×1.5mm×0.8mm(典型),体积仅为常规DIP封装的1/5,节省PCB空间

三、性能优势解析

  1. 宽温下的频率可靠性:
    在-40℃至+85℃范围内,频率变化始终控制在±5ppm内,可确保工业传感器、户外物联网节点在极端温度下的计时精度,避免数据采集或控制指令的时间误差。

  2. 低损耗与低功耗适配:
    70Ω的ESR值远低于部分竞品(部分竞品ESR达100Ω以上),减少晶振自身功率损耗;同时32.768kHz低频特性与低功耗RTC芯片(如PCF8563、DS3231)完美适配,可延长电池供电设备(智能手环、物联网节点)的续航时间。

  3. 小体积封装的灵活性:
    SMD3215封装可轻松集成到智能手表、蓝牙耳机、小型传感器等紧凑设备中,无需牺牲其他功能模块的空间,满足当前电子设备小型化趋势。

  4. 杭晶的品控保障:
    HCI作为国内晶振行业老牌厂商,3131M系列经过严格可靠性测试(高温高湿存储、振动冲击、回流焊兼容性测试),良品率达99.9%以上,供货周期稳定,适合批量生产需求。

四、典型应用场景

该晶振的核心应用集中在需要稳定实时时钟的领域:

  • 消费电子:智能手表、手环、智能家居设备(智能门锁、温湿度传感器)的RTC模块,确保时间显示准确、定时功能可靠;
  • 工业控制:PLC(可编程逻辑控制器)、工业传感器、数据采集终端的时钟同步,避免多设备间的时间偏差导致控制失误;
  • 物联网终端:NB-IoT、LoRa等低功耗物联网节点的计时,支持设备定时上报数据、低功耗休眠唤醒;
  • 通信设备:小型基站、路由器的辅助时钟,提升设备间的时间同步精度。

五、选型与使用注意事项

  1. 负载电容匹配:需在晶振两端各接一个22pF左右的陶瓷电容(假设电路寄生电容为2pF,两个电容串联后为11pF,加上寄生电容总负载接近12.5pF),避免频率偏差过大;
  2. 焊接工艺:采用回流焊工艺,峰值温度需≤260℃,回流时间≤30秒,避免高温损坏晶振内部结构;
  3. 温度适配:若应用场景温度低于-40℃或高于+85℃,需选择HCI宽温型号(如3131M-32.768DTTLRRLW,温度范围-55℃~+125℃)。

总结

HCI 3131M-32.768DTTLRRL凭借工业级的温度稳定性、低损耗特性及小体积封装,成为RTC场景下的高性价比选择。无论是消费电子的小型化需求,还是工业设备的宽温可靠性要求,该晶振均能提供稳定可靠的时钟基准,适合各类量产项目的选型。

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