WMSIC Electronic Components

SCTF SX3B32.000F1010F30

ModelSX3B32.000F1010F30
PackageSMD3225-4P
BrandSCTF
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
SCTF SX3B32.000F1010F30
Type
SCTF
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SCTF
Electronic Component
SX3B32.000F1010F30
Electronic Component
1
Package
SMD3225-4P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.046g
Frequency
32MHz
Electronic Component
1
Electronic Component
BM0266107510
Operating Temperature
40℃~+85℃
Electronic Component
±10ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
10pF
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.

SX3B32.000F1010F30 无源贴片晶振产品概述

SX3B32.000F1010F30是星通时频(SCTF) 推出的一款通用型无源贴片晶振,采用SMD3225-4P封装,核心频率32MHz,具备工业级宽温适应性与稳定的时钟输出性能,广泛适配消费电子、工业控制、物联网终端等场景的时钟源需求。

一、产品核心定位与典型应用场景

该晶振属于高频通用无源晶振,无需额外电源驱动,仅需匹配负载电容即可稳定起振,主要面向对时钟精度、抗干扰性有基础要求的中低端设备。典型应用包括:

  • 消费电子:智能家居控制器(如智能开关、网关)、便携式设备(智能手环、TWS耳机充电盒)的系统时钟;
  • 工业领域:工业传感器节点(温度、压力传感器)、小型PLC(可编程逻辑控制器)的定时模块;
  • 通信与物联网:蓝牙/WiFi子模块、LoRa网关的参考时钟,低功耗物联网终端的 wake-up 时钟;
  • 车载周边:车载USB充电器、行车记录仪的辅助时钟(适配-40~85℃宽温)。

二、关键技术参数解析

产品核心参数直接决定其应用适配性,具体解析如下:

  1. 频率精度(常温频差):±10ppm
    常温(25℃左右)下,实际输出频率与标称32MHz的偏差不超过320Hz(32MHz×10ppm=320Hz),满足大多数MCU/ASIC的时钟输入精度要求(多数MCU要求±20ppm以内)。
  2. 负载电容:10pF
    无源晶振需外部匹配负载电容以稳定振荡频率,10pF是通用匹配值,适配80%以上主流MCU(如STM32系列、ATmega系列)的时钟输入电路。
  3. 频率稳定度:±30ppm
    包含温度变化(-40~85℃)、电源波动、机械振动等因素的总频偏不超过30ppm,即32MHz下最大偏差960Hz,可覆盖工业现场的宽温环境波动。
  4. 等效串联电阻(ESR):30Ω
    ESR越低,晶振起振越容易、稳定性越强。30Ω属于无源晶振的优质水平,适配驱动电流≥1mA的时钟电路,避免因ESR过高导致的起振失败。
  5. 工作温度范围:-40℃~+85℃
    符合工业级温度标准,可在户外低温(-40℃)、室内高温(如夏季车间85℃)环境下长期稳定工作,无需额外散热或保温。

三、封装与结构特点

  1. SMD3225-4P封装:
    尺寸为3.2mm×2.5mm×0.8mm(长×宽×高),4引脚贴片结构,适合自动化SMT贴装,生产效率高;无引脚设计减少寄生电容/电感,提升时钟信号纯度。
  2. 结构优势:
    陶瓷封装外壳抗冲击、抗振动能力强(可承受10g以上振动),适合车载、手持设备等易受振动的场景;无源设计无主动元件(如晶体管),寿命长达10年以上,可靠性更高。

四、环境适应性与可靠性验证

该晶振通过多项可靠性测试,确保长期稳定运行:

  • 温度循环测试:-40℃~+85℃循环500次,频率变化≤20ppm;
  • 振动测试:10~2000Hz扫频振动,加速度15g,无起振异常;
  • 湿度测试:85℃/85%RH环境下放置1000小时,ESR变化≤10%;
  • 环保认证:符合RoHS 2.0标准,无铅无镉,适配出口产品需求。

五、选型与应用注意事项

为避免使用异常,需注意以下要点:

  1. 负载电容匹配:
    实际负载电容CL = (C1×C2)/(C1+C2) + Cstray(Cstray为PCB杂散电容,约2~3pF),需配置C1=C2≈18pF(保证总CL=10pF),避免频偏过大。
  2. 驱动能力匹配:
    晶振ESR30Ω,要求MCU时钟驱动电流≥1mA(如STM32F1系列的HSE驱动电流可达2mA),若驱动不足需外接缓冲器。
  3. PCB布局要求:
    晶振需靠近MCU的XIN/XOUT引脚(走线长度≤5mm),避免与电源、射频走线平行;晶振下方需铺地,减少电磁干扰。
  4. 温度范围适配:
    若应用环境温度超出-4085℃(如高温炉附近≥100℃),需更换宽温晶振(如-55125℃),此款不适用。

总结

SX3B32.000F1010F30是一款高性价比、工业级宽温的无源贴片晶振,32MHz频率覆盖主流MCU时钟需求,SMD3225封装适配小型化设备,适合对精度、可靠性有基础要求的多数电子系统,是消费电子、工业控制领域的通用时钟源选择。

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