WMSIC Electronic Components

Jingdao Microelectronics SMCJ33CA

ModelSMCJ33CA
PackageSMC
BrandElectronic
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
Electronic SMCJ33CA
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
SMCJ33CA
Electronic Component
1
Package
SMC
Electronic Component
Electronic Component
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.381g
Electronic Component
1
Channel Count
Electronic Component
Electronic Component
BM0264086070
Operating Temperature
55℃~+150℃
Voltage
53.3V
Current(Ir)
1uA
Voltage(VBR)
40.6V
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.

SMCJ33CA 双向TVS二极管产品概述

SMCJ33CA是晶导微电子推出的单路双向瞬态抑制二极管(TVS),采用SMC(DO-214AB)表面贴装封装,专为电子电路的瞬态过压保护设计,可有效抑制雷击、静电放电(ESD)、开关浪涌等瞬态干扰,保护敏感元器件免受损坏。

一、产品基本属性

  • 器件类型:双向TVS二极管(瞬态抑制)
  • 品牌:晶导微电子
  • 封装形式:SMC(DO-214AB),表面贴装
  • 通道数:单路
  • 核心功能:瞬态过压钳位、浪涌抑制

二、核心电性能参数解析

SMCJ33CA的电性能参数针对中低压系统的过压保护优化,关键参数如下:

  1. 反向截止电压(Vrwm):33V
    器件正常工作时可承受的最大反向直流电压,不发生导通,确保静态下不影响电路正常功能。该参数适配12V、24V等常见低压系统(系统工作电压远低于33V)。
  2. 击穿电压(Vbr):40.6V
    反向电压达到此值时,器件进入雪崩击穿状态,快速导通并启动钳位功能,响应时间达纳秒级(TVS典型特性),可瞬间抑制瞬态过压。
  3. 钳位电压(Vc):53.3V
    当施加10/1000μs(前沿10μs、半峰值1000μs)标准浪涌脉冲时,器件的最大钳位电压,确保后级电路的工作电压不超过安全阈值。
  4. 峰值脉冲电流(Ipp):28.2A
    对应1.5kW峰值脉冲功率的最大浪涌电流,可承受较强的瞬态浪涌冲击(如近距离雷击、大负载开关浪涌)。
  5. 峰值脉冲功率(Ppp):1.5kW
    10/1000μs波形下的最大功耗,体现器件的浪涌抑制能力上限,适用于中等功率密度的电路保护。
  6. 反向漏电流(Ir):1μA
    反向截止电压下的漏电流极小,静态功耗低,不影响电路的正常工作电流。

三、封装与设计优势

SMCJ33CA采用SMC(DO-214AB)封装,具有以下设计优势:

  • 体积紧凑:表面贴装式设计,尺寸小(典型值:长4.7mm×宽2.7mm×高1.6mm),适合高密度PCB布局(如汽车电子、小型通信设备);
  • 双向导通:无需区分正负极,简化电路设计与焊接工艺,降低生产复杂度;
  • 散热性佳:封装结构利于热量扩散,可承受重复浪涌冲击,延长使用寿命。

四、环境适应性与可靠性

器件的环境适应性覆盖工业级要求:

  • 工作温度范围:-55℃~+150℃,宽温范围适配极端环境(如沙漠、极地、工业高温车间);
  • 可靠性:符合RoHS标准,无铅封装;可承受多次浪涌冲击(典型重复次数≥1000次),性能稳定。

五、典型应用场景

SMCJ33CA因参数适配性强,广泛应用于以下领域:

  1. 汽车电子:车载传感器(如温度、压力传感器)、通信接口(CAN/LIN总线)、电源模块的过压保护;
  2. 工业控制:PLC输入输出端口、伺服驱动器、传感器接口的浪涌抑制;
  3. 消费电子:笔记本电脑、显示器、充电器的电源端口、USB接口ESD/浪涌保护;
  4. 通信设备:交换机、路由器、基站的以太网端口、射频接口保护。

综上,SMCJ33CA凭借双向导通、宽温工作、高浪涌抑制能力及紧凑封装,成为中低压电子系统过压保护的可靠选择,可有效提升电路的抗干扰能力与稳定性。

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