WMSIC Electronic Components

CJ SMBJ58A

ModelSMBJ58A
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 SMBJ58A
Type
CJ
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
SMBJ58A
Electronic Component
1
Package
SMBG
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.2g
Electronic Component
1
Electronic Component
BM0265022344
Operating Temperature
55℃~+150℃
Voltage
93.6V
Current(Ir)
5uA
Voltage(VBR)
71.2V
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.

SMBJ58A瞬态抑制二极管(TVS)产品概述

一、产品核心定位与基础属性

SMBJ58A是单向瞬态抑制二极管(TVS),由江苏长电(CJ)生产,采用SMBG贴片封装,专为电路中的瞬态过压保护设计。其核心作用是在遇到雷击、静电放电(ESD)、开关浪涌等瞬态过压事件时,快速从截止态转为导通态,钳位尖峰电压至安全范围,避免后级敏感元器件(如MCU、传感器)受损。

二、关键电气参数深度解析

SMBJ58A的参数针对中低压电路(58V级)优化,核心参数如下:

  1. 反向截止电压(Vrwm):58V
    常态下器件可长期承受的最大反向工作电压,确保电路正常工作时不导通,不影响信号传输或电源效率。

  2. 击穿电压(Vbr):71.2V
    过压保护的触发阈值——当反向电压超过此值时,TVS快速导通,将过压能量泄放至地,是“从截止到保护”的关键切换点。

  3. 钳位电压(Vc):93.6V
    峰值脉冲电流下,TVS两端的最高电压,是后级电路可承受的保护上限。需确认后级器件耐压≥93.6V,以实现有效保护。

  4. 峰值脉冲电流(Ipp)与功率(Ppp):6.4A@10/1000μs、600W@10/1000μs
    采用行业标准10/1000μs脉冲波形(上升沿10μs,半峰值时间1000μs),体现器件抗瞬态脉冲的能力,可应对典型浪涌(如雷击次级浪涌、开关切换浪涌)。

  5. 反向漏电流(Ir):5μA
    常态下反向漏电流极小,可忽略不计,避免器件自身功耗影响电路整体效率。

  6. 工作温度范围:-55℃~+150℃
    宽温特性覆盖工业级、汽车级严苛环境(如车载-40℃+125℃、工业-40℃+85℃),环境适应性强。

三、封装与物理特性

SMBJ58A采用SMBG贴片封装,属于SMB系列标准化封装,具有以下优势:

  • 体积紧凑:符合小型化电路设计需求,节省PCB空间,适合高密度布线;
  • 自动化兼容:引脚布局适配回流焊、波峰焊等SMT工艺,可实现批量高效生产;
  • 机械可靠性:封装结构牢固,抗振动、抗冲击性能良好,满足车载、工业等振动环境要求。

四、品牌与可靠性优势

  1. 品牌背景:江苏长电(CJ)是国内半导体行业龙头,拥有成熟的封装测试生产线,产品一致性好,批量应用稳定性高;
  2. 环保合规:符合RoHS、REACH等国际环保标准,无铅无卤,满足绿色制造要求;
  3. 应用验证:经过消费电子、工业控制、汽车电子等多领域客户批量验证,可靠性已得到市场认可。

五、典型应用场景示例

SMBJ58A的参数特性使其适用于以下场景:

  1. 消费电子:手机、平板、笔记本的USB接口、电源输入端口,抑制ESD和电源浪涌;
  2. 工业控制:PLC、传感器、伺服驱动器的信号/电源线路,抵御工业环境中的浪涌干扰;
  3. 汽车电子:车载充电器、车灯控制电路、CAN总线接口,应对点火/负载切换浪涌;
  4. 通信设备:路由器、交换机的以太网端口、射频接口,抑制雷击浪涌和静电干扰。

总结

SMBJ58A凭借单向保护、宽温范围、紧凑封装及可靠性能,成为58V级电路瞬态过压保护的优选器件,可有效提升电路抗干扰能力与长期可靠性。

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