WMSIC Electronic Components

CJ SMF8.0CA

ModelSMF8.0CA
PackageSOD-123FL
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 SMF8.0CA
Type
CJ
Minimum package
3000

Technical parameters

Electronic Component
CJ
Electronic Component
SMF8.0CA
Electronic Component
1
Package
SOD-123FL
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.044g
Electronic Component
1
Electronic Component
BM0264603914
Voltage
13.6V
Current(Ir)
50uA
Voltage(VBR)
9.83V
Electronic Component
3000
Power(Ppp)
200W@10/1000us
Current(Ipp)
14.7A@10/1000us

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

SMF8.0CA 瞬态抑制二极管产品概述

一、产品定位与核心功能

SMF8.0CA是江苏长电(CJ) 推出的一款双向瞬态抑制二极管(TVS),核心作用是快速抑制电路中的瞬态脉冲干扰(如静电放电、浪涌电压),将电压钳位在安全范围内,保护后级敏感电子元件(如MCU、传感器、通信芯片)免受损坏。其双向极性设计适配正负极性脉冲的防护需求,广泛应用于低电压电子系统。

二、关键电气参数解析

SMF8.0CA的电气参数针对低电压电路优化,核心参数如下:

2.1 电压防护核心参数

  • 反向截止电压(Vrwm):8V
    电路正常工作时(无瞬态干扰),SMF8.0CA处于反向截止状态,漏电流极小,不影响电路正常信号传输;当电压超过8V时,器件开始进入防护响应。

  • 击穿电压(Vbr):9.83V
    电压达到击穿电压时,器件快速导通(响应时间ns级),开启防护功能,避免电压持续上升。

  • 钳位电压(Vc):13.6V
    脉冲干扰峰值时,SMF8.0CA将电压钳位至13.6V以内,确保后级电路的工作电压不超过其耐受极限(通常电子元件的过压阈值多在15V以下,此钳位值满足防护需求)。

2.2 脉冲耐受能力

  • 峰值脉冲电流(Ipp):14.7A@10/1000μs
    10/1000μs是国际通用的浪涌脉冲波形(前沿10μs、半峰值时间1000μs),14.7A的峰值电流能力可应对常见的小功率浪涌干扰。

  • 峰值脉冲功率(Ppp):200W@10/1000μs
    200W的脉冲功率容量覆盖了消费电子、小型工业设备的典型瞬态干扰功率需求(如IEC 61000-4-5浪涌测试中的低等级脉冲)。

2.3 漏电流与响应特性

  • 反向漏电流(Ir):50μA
    反向截止状态下的漏电流仅50μA,远低于普通二极管的漏电流,不会对电路正常功耗造成影响。

  • 响应速度:ns级
    TVS的典型响应速度为纳秒级,可快速响应静电放电(ESD)等快速脉冲干扰,保护效率高。

三、封装与品牌特性

3.1 封装形式:SOD-123FL

  • 小尺寸表面贴装:封装尺寸紧凑(约2.4×1.6mm),适合高密度PCB设计(如可穿戴设备、智能手机等小型电子设备);
  • 低寄生参数:SOD-123FL封装的寄生电容、电感较小,不影响高速信号线(如USB、I2C、SPI)的传输性能;
  • 焊接兼容性:支持回流焊、波峰焊等标准表面贴装工艺,生产适配性强。

3.2 CJ品牌优势

江苏长电(CJ)是国内半导体行业的龙头企业,SMF8.0CA采用其成熟的TVS制造工艺,具有:

  • 品质可靠性:符合RoHS、REACH等环保标准,通过多项可靠性测试(如温度循环、湿度老化);
  • 供货稳定性:量产能力强,可满足中小批量到大规模生产的供货需求;
  • 成本优势:国产替代产品,性价比高于进口同类器件。

四、典型应用场景

SMF8.0CA的参数与封装特性,使其适用于以下场景:

  1. 低电压直流电源端口:如5V、9V电源的输入/输出端口(如手机充电口、智能家居节点电源);
  2. 高速通信接口:USB 2.0/3.0、I2C、SPI等信号线的ESD/浪涌防护;
  3. 消费电子设备:智能手机、平板电脑、智能手表的接口防护;
  4. 小型工业设备:传感器节点、小型控制器的电路防护。

五、产品优势总结

SMF8.0CA作为一款双向TVS,具有以下核心优势:

  • 双向防护适配广:可应对正、负极性瞬态干扰,无需区分安装方向;
  • 电压匹配精准:8V截止电压、13.6V钳位电压,完美适配低电压电子系统;
  • 小封装易集成:SOD-123FL封装适合高密度设计,不占用额外PCB空间;
  • 性能可靠:CJ品牌保障,脉冲耐受能力满足常见应用需求;
  • 成本可控:国产替代方案,性价比优势明显。

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