WMSIC Electronic Components

CJ SMBJ130CA

ModelSMBJ130CA
PackageSMBG
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 SMBJ130CA
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SMBJ130CA
Electronic Component
1
Package
SMBG
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0264603908
Operating Temperature
55℃~+150℃
Voltage
231V
Current(Ir)
5uA
Voltage(VBR)
176V
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.

SMBJ130CA瞬态抑制二极管(TVS)产品概述

SMBJ130CA是江苏长电(CJ)推出的一款SMB封装瞬态抑制二极管(TVS),专为电子电路的过压浪涌防护设计,具备宽温适应性、低漏电流及高脉冲耐受能力,广泛适用于消费电子、工业控制、通信设备等领域的ESD(静电放电)、EFT(电快速瞬变脉冲群)及雷击浪涌防护场景。

一、产品定位与典型应用场景

SMBJ130CA属于双向TVS管(后缀“CA”标识双向防护),核心定位为中高压电路的低成本浪涌防护器件,满足130V工作电压范围内的电路防护需求。其典型应用场景包括:

  1. 消费电子:平板、笔记本电脑的电源输入端口、显示接口浪涌防护;
  2. 工业控制:PLC(可编程逻辑控制器)的I/O接口、电源模块浪涌防护(适配-55℃~+150℃宽温环境);
  3. 通信设备:路由器、交换机的以太网端口、电源输入浪涌防护;
  4. 小型电源:AC/DC适配器、DC/DC转换器的输出端过压防护。

二、核心电气参数深度解析

SMBJ130CA的电气参数围绕“浪涌防护能力”与“电路兼容性”平衡设计,关键参数如下:

1. 工作与击穿电压

  • 反向截止电压(Vrwm):130V:是TVS在反向偏置下可长期稳定工作的最大电压,确保电路正常工作时(电压≤130V)器件处于截止状态,不影响电路功能;
  • 击穿电压(Vbr):176V:为TVS反向击穿的典型电压,Vrwm与Vbr的比例(约0.74)符合双向TVS的设计逻辑,避免器件在正常电压下误击穿;
  • 钳位电压(Vc):231V:是TVS承受峰值脉冲电流时的最大电压,即浪涌发生时,可将被保护电路的电压钳位在231V以内,防止器件过压损坏。

2. 脉冲耐受能力

  • 峰值脉冲电流(Ipp):2.6A@10/1000μs:“10/1000μs”为浪涌波形参数(前沿10μs,半峰值时间1000μs),表示该器件可承受2.6A的峰值脉冲电流,满足一般浪涌防护需求;
  • 峰值脉冲功率(Ppp):600W@10/1000μs:由钳位电压与峰值电流共同决定(231V×2.6A≈600W),是器件可承受的最大脉冲功率,需注意该功率为单次脉冲耐受值,重复脉冲需降额使用。

3. 电路兼容性参数

  • 反向漏电流(Ir):5μA@Vrwm:在130V反向截止电压下,漏电流仅为5μA,远低于行业常规值,可有效降低电路静态功耗,不影响低功耗电路设计。

三、封装特性与环境适应性

SMBJ130CA采用SMB封装(表面贴装),具备以下特性:

  1. 封装尺寸:符合JEDEC标准的SMB封装(尺寸约3.2×5.0×2.0mm),体积小巧,适合高密度PCB布局;
  2. 焊接可靠性:支持回流焊、波峰焊工艺,焊接峰值温度≤260℃(持续时间≤10秒),兼容无铅无卤制程,符合RoHS环保要求;
  3. 宽温适应性:工作温度范围为-55℃~+150℃,可满足户外设备、工业现场等极端温度环境的防护需求;
  4. 机械强度:封装采用陶瓷/塑料复合结构,具备一定抗机械应力能力,可减少焊接及使用过程中的开裂风险。

四、选型与应用注意事项

为确保SMBJ130CA的防护效果,需注意以下选型与应用要点:

1. 选型匹配原则

  • 被保护电路的正常工作电压≤Vrwm(130V),避免器件长期处于击穿状态;
  • 浪涌的峰值电压≤Vc(231V),峰值电流≤2.6A,峰值功率≤600W;
  • 若浪涌功率超出规格,可通过并联多个器件(需注意均流)或选用更高功率型号(如SMBJ130CA并联可提升脉冲耐受能力)。

2. 应用安装注意

  • 靠近被保护端口:需安装在被保护电路的输入端口附近(如电源接口、信号接口),减少引线电感(引线电感会降低钳位效果,导致实际钳位电压升高);
  • 焊接工艺规范:避免焊接温度过高或时间过长,防止封装损坏;焊接后需检查引脚是否虚焊;
  • 双向防护适配:仅适用于需要正反向浪涌防护的电路(如交流电源、双向信号),单向防护需选用SMBJ130A(后缀“A”为单向)。

3. 降额使用建议

  • 重复脉冲防护:若浪涌为重复脉冲(如EFT),需将峰值功率降额至Ppp的50%以下(即≤300W),延长器件寿命;
  • 温度降额:当工作温度高于125℃时,需将Vrwm降额约10%,确保器件可靠性。

SMBJ130CA凭借其高性价比、宽温适应性及双向防护能力,成为中高压电路浪涌防护的常用选型,可有效提升电子设备的抗干扰能力与可靠性。

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