WMSIC Electronic Components

SCTF SX3B40.000F1210F30

ModelSX3B40.000F1210F30
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 SX3B40.000F1210F30
Type
SCTF
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SCTF
Electronic Component
SX3B40.000F1210F30
Electronic Component
1
Package
SMD3225-4P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.047g
Frequency
40MHz
Electronic Component
1
Electronic Component
BM0266061184
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.

SX3B000F1210F30无源贴片晶振产品概述

一、产品定位与典型应用

SX3B40.000F1210F30是SCTF星通时频推出的工业级无源贴片晶振,核心频率40MHz,针对高频稳定、宽温可靠的场景设计,兼顾精度与成本优势,广泛适配以下领域:

  • 通信设备:路由器、交换机、无线AP的时钟基准,保障数据传输时序稳定性;
  • 工业控制:PLC、伺服驱动器、传感器模块的时钟源,适应-40℃~+85℃工业环境;
  • 消费电子:机顶盒、智能电视的音频/视频同步时钟;
  • 汽车电子:车载CAN总线模块、仪表盘的辅助时钟,满足车规级宽温要求。

二、关键技术参数解析

该产品核心参数直接决定性能边界,关键指标如下:

  • 频率与精度:标称40MHz,常温频差±10ppm(即常温下频率偏移≤400Hz),满足中高端设备时钟精度需求;
  • 负载电容:12pF(CL=12pF),是电路匹配核心参数,需结合PCB寄生电容(1~2pF)计算外围电容;
  • 频率稳定度:±30ppm(全温区),温度波动导致的频率漂移控制在合理范围,避免时序异常;
  • 等效串联电阻(ESR):30Ω,低阻水平易起振,工作功耗低、发热小;
  • 工作温度:-40℃~+85℃,符合工业级宽温标准,恶劣环境下长期稳定;
  • 封装:SMD3225-4P(3.2×2.5mm),小型化贴片封装,适配高密度PCB设计。

三、封装与可靠性设计

SMD3225-4P封装是可靠性核心保障:

  • 封装工艺:采用陶瓷封装(耐温性优于塑料),抗机械应力与环境腐蚀;
  • 焊接兼容性:支持回流焊、波峰焊,焊接温度曲线符合IPC标准,避免假焊/过热损坏;
  • 长期可靠性:无源晶振无内部驱动电路,结构简单,平均无故障时间(MTBF)可达数十万小时。

四、品牌与品质保障

SCTF星通时频是国内专业频率控制厂商,该产品具备以下优势:

  • 工艺一致性:高精度光刻、封装工艺,批量供货时频率偏移、ESR离散性小;
  • 合规认证:符合RoHS、REACH环保标准,通过ISO9001质量体系认证;
  • 技术支持:提供完整datasheet与选型指导,针对电路匹配问题可现场支持。

五、选型与电路匹配注意事项

为确保正常工作,需注意以下要点:

  1. 负载电容匹配:外围电容C1、C2满足公式:(CL=\frac{C1×C2}{C1+C2}+C_{stray})((C_{stray})为寄生电容1~2pF),推荐C1=C2=22pF(近似匹配12pF负载);
  2. 振荡电路适配:需外接MCU/ASIC的HCMOS型OSC模块,确认驱动能力与ESR匹配,避免不起振;
  3. PCB布局规范:晶振与匹配电容间距≤5mm,避免与高频信号线并行(间距≥10mm),减少电磁干扰;
  4. 焊接工艺控制:回流焊峰值温度≤245℃,时间≤10秒,防止参数漂移。

总结

SX3B40.000F1210F30无源贴片晶振凭借高频稳定、宽温可靠、小型化优势,是工业控制、通信、消费电子等领域的高性价比时钟源选择,可满足大多数中高端设备时序需求。

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