WMSIC Electronic Components

CJ CJ13-080001210B20 CJ13

ModelCJ13-080001210B20
PackageSMD3225-4P
BrandCJ
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
CJ CJ13-080001210B20
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
CJ13-080001210B20
Electronic Component
1
Package
SMD3225-4P
Electronic Component
Passive Crystal Oscillator
Electronic Component
0.043g
Frequency
8MHz
Electronic Component
1
Electronic Component
BM0228054214
Electronic Component
±10ppm
Crystal Oscillator Type
SMDCrystal Oscillator
Load Capacitor
12pF
Frequency
±20ppm
Electronic Component
Electronic Component
Electronic Component
3000

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

CJ13-080001210B20 产品概述

一、产品简介

CJ13-080001210B20 是江苏长电(CJ/长晶)推出的一款无源贴片晶体元件,额定频率为 8.000 MHz,常温频差 ±10 ppm,设计负载电容为 12 pF,封装为 SMD3225-4P(3.2 × 2.5 mm 尺寸级别)。该型号为无源(被动)晶体,需配合外部振荡器电路(如 MCU 或专用晶体振荡器芯片)使用,适合对体积、成本和频率稳定性有要求的时钟源场合。

二、主要技术参数

  • 名称:CJ13-080001210B20(无源晶振)
  • 频率:8.000 MHz(基频)
  • 常温频差:±10 ppm(标称室温静态偏差,请以出厂检验值为准)
  • 负载电容:12 pF(典型值,振荡回路需按该值匹配)
  • 封装:SMD3225-4P(贴片封装,适合回流焊工艺)
  • 类型:无源晶体(需外部放大器/振荡器电路)
  • 备注:更多参数(等效串联电阻 ESR、温度范围、老化率、最大驱动电平)请参考厂家数据手册或向供应商索取检测报告。

三、振荡电路与匹配建议

  • 负载电容选择:采用两端各一电容 C1、C2 接地的常规 Pierce 振荡电路时,可用公式估算: C1 = C2 ≈ 2 × (CL − Cstray) 其中 CL 为晶体标称负载电容(12 pF),Cstray 为器件引线、封装和 PCB 寄生电容(典型 2–5 pF)。按 Cstray = 2–5 pF 计算,C1、C2 可选在 16–20 pF 范围内并据实际电路调校。
  • 驱动功率:无源晶体对驱动电平敏感,建议按照器件手册中的最大驱动电平或控制 MCU 内部放大器输出,避免过驱动导致频率偏移或老化加速。
  • 布线和布局:晶体与 MCU 振荡器引脚应尽量靠近,走线最短并且保持对称,避免大面积铜皮或高速信号线靠近以减少干扰和寄生电容。

四、封装与焊接建议

  • 采用 SMD3225-4P 封装,适用于标准回流焊;推荐按制造商的回流温度曲线和湿敏等级(MSL)要求进行焊接。
  • 焊盘设计与焊锡掩膜留孔需参考厂方推荐的 PCB land pattern,确保焊接湿润性和机械强度。
  • 储存与防静电:晶体对静电敏感,建议在防静电环境下操作并按厂方建议的温湿度条件储存。

五、典型应用场景

  • 微控制器(MCU)系统时钟源
  • 嵌入式设备、传感器节点和低速通信模块
  • 工业控制、消费电子中对 8 MHz 时钟的场合
  • 需要小尺寸贴片振荡器且以成本优化为目标的批量产品

六、选型与质量控制建议

  • 在批量导入前,建议索取样品并在目标电路中验证频率、上电稳定性、启动时间、温漂和相位噪声等关键指标。
  • 对于对频率稳定性和长期漂移有严格要求的应用,应关注温度范围、老化率和等效串联电阻(ESR)等参数,并向厂商索取相关检测报告或做加速老化测试。
  • 采购时核对型号与供应链批次,确保物料一致性与可追溯性。

如需完整电气特性曲线、机械尺寸图、回流焊曲线或样品申请,我可以帮您整理一份针对 CJ13-080001210B20 的详细清单并列出需要向厂商确认的关键参数。

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