WMSIC Electronic Components

FUXINSEMI SMFJ6.5CA

ModelSMFJ6.5CA
PackageSOD-123
BrandFUXINSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
FUXINSEMI SMFJ6.5CA
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
SMFJ6.5CA
Electronic Component
1
Package
SOD-123
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.041g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0230032100
Operating Temperature
55℃~+150℃
Voltage
11.2V
Electronic Component
IEC 61000-4-2
Current(Ir)
250uA

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

SMFJ6.5CA 产品概述

SMFJ6.5CA 是 FUXINSEMI(富芯森美)推出的一款双向瞬态电压抑制器(TVS),采用 SOD-123 封装,专为保护电子电路免受静电放电(ESD)、浪涌电流和过压瞬变影响而设计。器件具有快速响应、高能量吸收能力和宽温度工作范围,适用于各种通信接口、供电线和敏感电子模块的过压保护。

一、主要性能与关键参数

  • 类型:双向 TVS(瞬态抑制二极管)
  • 极性:双向(适合可能出现反向极性的线路保护)
  • 反向截止电压 Vrwm:6.5 V
  • 典型击穿电压 Vbr:7.98 V
  • 钳位电压 Vcl(在峰值脉冲电流下):11.2 V(在 Ipp = 17.9 A 条件下)
  • 峰值脉冲电流 Ipp:17.9 A
  • 峰值脉冲功率 Ppp:200 W
  • 反向漏电流 Ir:典型 250 µA
  • 通道数:单路
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 防护等级:符合 IEC 61000-4-2(静电放电抗扰度测试)
  • 封装:SOD-123(表面贴装,体积小,便于自动化贴装)

二、产品特性与优势

  • 快速响应:作为 TVS 器件,能够在纳秒级响应瞬态过电压,快速钳位,保护后级电路。
  • 高能量吸收能力:200 W 的峰值脉冲功率能力使其能吸收较大能量的瞬态脉冲,适合承受较强的浪涌或静电放电事件。
  • 双向保护:支持正反两极瞬态抑制,适用于交流、差分信号线或可能出现反向电压的场合,无需区分极性。
  • 小型封装:SOD-123 体积小、热阻较低,适合空间受限的电路板布局,同时利于自动化生产。
  • 宽温度范围:工作温度覆盖 -55 ℃ 至 +150 ℃,可在恶劣环境或高温条件下稳定工作。
  • 标准兼容性:通过 IEC 61000-4-2 静电抗扰度验证,便于满足系统级电磁兼容设计要求。

三、典型应用场景

  • 通信接口保护:例如 UART、RS-485、CAN 总线等需要防护的数据信号线。
  • 供电线防护:对 5 V 或接近 6.5 V 反向截止电压的供电回路提供瞬态抑制。
  • 接口与外设保护:USB 接口、音频接口、传感器接口等易受静电放电和浪涌冲击的外部连接点。
  • 工业与户外电子设备:因其宽工作温度和高浪涌吸收能力,适合工业控制、仪表及通信基站等场景。
  • 一般电子设备的瞬态保护:保护电源管理、电机驱动器外围器件和敏感模拟电路。

四、典型电路与封装建议

  • 连接方式:双向 TVS 通常并联连接于被保护线路两端(线对之间或线对对地),在正负脉冲时均能钳制电压。对于单端信号线,可直接并联到地或由差分对并联。
  • 布局建议:
    • TVS 与受保护器件之间走最短走线,减少寄生电感,提高钳位效果。
    • 在高能量场合,保证焊盘和铜箔面积以利散热。
    • 若并联于多通道,避免共地回路产生干扰,合理安排地线回流路径。

五、可靠性与使用注意

  • 温度与功耗:在高温或连续重复冲击下应注意器件温升,必要时评估板级散热措施,避免长期频繁超过额定脉冲能量。
  • 漏电与静态影响:反向漏电流典型为 250 µA,设计时应考虑对低功耗或高灵敏度电路的影响。
  • ESD 管理:尽管器件用于抗静电,但在装配和测试过程中仍建议遵循 ESD 防护规范,避免损伤器件。
  • 存储与焊接:按 SOD-123 封装的贴片工艺进行回流焊,遵守制造商提供的回流温度曲线和湿敏等级要求。

六、封装与订购信息

  • 封装:SOD-123 表面贴装封装,适合自动化贴装与高密度电路板设计。
  • 型号示例:SMFJ6.5CA(FUXINSEMI 品牌)
  • 采购与技术支持:在选型和批量生产前,建议与供应商确认样片测试结果、具体器件的典型曲线(I-V、钳位曲线)以及封装尺寸图(PCB 封装/焊盘推荐)以确保设计一致性。

总结:SMFJ6.5CA 是一款面向通用瞬态抑制场合的高能量、双向 TVS 器件,凭借 200 W 的脉冲功率吸收能力、11.2 V 的钳位电压(在峰值脉冲电流下)以及宽温度特性,适合用于各种接口和供电线的过压、ESD 保护。设计时应结合具体应用评估漏电、钳位电压与散热需求,以获得最佳保护效果。

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