WMSIC Electronic Components

SCTF SX3B25.000F1210F30

ModelSX3B25.000F1210F30
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 SX3B25.000F1210F30
Type
SCTF
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SCTF
Electronic Component
SX3B25.000F1210F30
Electronic Component
1
Package
SMD3225-4P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.047g
Frequency
25MHz
Electronic Component
1
Electronic Component
BM0264678316
Operating Temperature
40℃~+85℃
Electronic Component
±10ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
12pF
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.

SX3B25.000F1210F30 无源贴片晶振产品概述

SX3B25.000F1210F30是星通时频(SCTF)推出的一款通用型无源石英贴片晶振,采用SMD3225-4P封装,以25MHz为核心标称频率,具备高稳定性、宽温适应性与低功耗等特点,广泛适配工业控制、消费电子、通信模块等领域的时钟信号需求。

一、产品基本属性与定位

该晶振属于无源石英晶振(无内置驱动电路,需外部匹配电容),核心定位为中精度、宽温适用的通用时钟源。型号命名逻辑清晰:

  • “SX3B”为SCTF无源晶振系列代码;
  • “25.000”对应标称频率25MHz;
  • “F1210”关联负载电容12pF(后缀“10”为稳定度等级);
  • “F30”明确全温区频率稳定度参数。

整体符合行业标准化设计,可直接替换同类通用晶振型号。

二、核心性能参数详解

1. 频率与精度表现

  • 标称频率25MHz:覆盖MCU、通信模块等主流设备的时钟需求;
  • 常温频差±10ppm:频率偏差≤250Hz,属于中高精度范围,能满足智能家居、工业控制对时钟精度的要求;
  • 全温区稳定度±30ppm:在-40℃~+85℃范围内,频率漂移被控制在30ppm以内,避免因温度变化导致系统运行异常。

2. 负载与阻抗特性

  • 负载电容12pF:无源晶振需外部匹配负载电容才能稳定振荡,12pF为行业标准值,适配多数MCU(如STM32、ESP32)的引脚内置负载(1~2pF),外部只需并联两个6pF电容即可满足匹配;
  • 等效串联电阻(ESR)30Ω:低阻设计(≤50Ω为低阻),降低振荡启动难度,提升电路稳定性,无需额外驱动电路即可适配主流微控制器。

三、封装与引脚配置

采用SMD3225-4P封装:

  • 尺寸为3.2mm×2.5mm,属于小型化贴片封装,节省PCB空间,适合高密度电路板设计(如智能手表、无线耳机);
  • 4引脚设计符合行业标准,引脚间距与焊接兼容性强,可通过自动化贴装(SMT)实现高效生产,焊接后抗振动性能优于直插封装。

四、环境适应性与可靠性

1. 宽温工作范围

工作温度覆盖**-40℃~+85℃**,满足工业控制设备(如PLC、传感器节点)、户外电子设备(如智能路灯控制器)的环境要求,无需额外散热或保温措施即可稳定运行。

2. 无源晶振的可靠性优势

相比有源晶振(带振荡电路),无源晶振仅由石英晶体谐振器构成,具有:

  • 更长使用寿命(无电子元件老化问题);
  • 更低功耗(仅需外部电容匹配,无驱动电流);
  • 更强抗电磁干扰(EMI)能力,适合对电磁兼容性要求较高的场景(如医疗设备辅助电路)。

五、典型应用场景

SX3B25.000F1210F30因性能均衡、成本适中,广泛应用于以下场景:

  1. MCU时钟源:为STM32、ATmega等MCU提供外部时钟,替代内部RC振荡器,提升运算精度(如智能家居控制器、智能音箱);
  2. 通信模块基准时钟:蓝牙4.0/5.0、WiFi模块的参考时钟,确保数据传输准确性(如无线耳机、物联网网关);
  3. 工业控制设备:PLC、伺服电机控制器的时钟同步,适应车间-20℃~+60℃的温度波动;
  4. 消费电子:机顶盒、智能手表的系统时钟,满足低功耗、小型化设计需求;
  5. 汽车电子辅助场景:车载信息娱乐系统(如中控屏)的时钟源(需确认应用温区在-40℃~+85℃内)。

六、选型与使用注意事项

  1. 负载电容匹配:必须在晶振引脚与地之间并联两个6pF电容(总12pF),避免负载不匹配导致振荡不稳定;
  2. 焊接工艺:回流焊需遵循SCTF推荐曲线(峰值温度≤260℃,时间≤10秒),避免过热损坏晶体;
  3. 温区确认:若应用场景温度超出-40℃+85℃(如军工级-55℃+125℃),需选择更高温区型号;
  4. 抗振动设计:高振动场景(如汽车发动机舱)需增加晶振固定措施,避免频率漂移。

总结

SX3B25.000F1210F30作为通用型无源贴片晶振,以25MHz核心频率、±10ppm常温精度、宽温范围为核心优势,兼顾性能与成本,是工业控制、消费电子、通信领域时钟设计的优选方案。其小型化封装与低ESR特性,进一步提升了电路集成度与稳定性,适合批量自动化生产需求。

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