WMSIC Electronic Components

GOODWORK SMBJ30CA

ModelSMBJ30CA
PackageSMB(DO-214AA)
BrandGOODWORK
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
GOODWORK SMBJ30CA
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMBJ30CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.177g
Electronic Component
1
Electronic Component
BM0264757976
Operating Temperature
55℃~+150℃
Voltage
48.4V
Current(Ir)
5uA
Voltage(VBR)
33.3V
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.

SMBJ30CA 双向瞬态抑制二极管(TVS)产品概述

一、产品定位与核心价值

SMBJ30CA是一款专为电子电路静电放电(ESD) 和浪涌过压防护设计的双向TVS器件,核心作用是在过压事件发生时快速导通,将电压钳位在安全阈值内,避免后级敏感元器件(如IC、传感器、通信模块等)因过压损坏。其双向防护特性可同时应对正、反向浪涌,无需额外考虑极性匹配,简化电路设计。

二、关键性能参数深度解析

1. 电压特性参数

  • 反向截止电压(Vrwm):30V
    器件正常工作时可承受的最大反向电压,无漏电流导通,确保电路在额定电压下稳定运行,不影响信号传输或电源效率。
  • 击穿电压(Vbr):33.3V
    器件开始导通的电压阈值(比Vrwm高3.3V),避免因电路电压波动导致误触发,保证防护动作的精准性。
  • 钳位电压(Vc):48.4V(典型值)
    遭遇峰值脉冲时,器件将电压钳位在此值以下,是后级电路的“安全上限”——即使浪涌电压远高于30V,也能通过钳位保护敏感元件。

2. 脉冲耐受能力

  • 峰值脉冲电流(Ipp):12.4A(8/20μs脉冲波形)
    可承受常见的ESD冲击(如人体模型HBM、机器模型MM)和雷电感应浪涌,覆盖大多数电子设备的实际防护场景。
  • 峰值脉冲功率(Ppp):600W
    对应Ipp与Vc的乘积(12.4A×48.4V≈600W),体现器件的脉冲功率容量,可应对中等强度的浪涌事件。

3. 漏电流与温度特性

  • 反向漏电流(Ir):5μA(@Vrwm)
    漏电流极小,不额外增加电路功耗,适合对电源效率要求较高的设备(如便携电子、电池供电产品)。
  • 工作结温范围:-55℃~+150℃
    宽温设计可适应极端环境,如工业车间的高温作业、户外通信设备的低温暴露,无需额外散热或温度补偿。

三、封装与物理特性

采用SMB(DO-214AA)贴片封装,具备以下优势:

  • 体积小巧:尺寸约2.9×3.8×1.9mm,适合智能手机、可穿戴设备等小型化产品的高密度PCB布局;
  • 焊接兼容:支持回流焊工艺,引脚布局符合行业标准,可与常规贴片元件同步焊接,降低生产难度;
  • 可靠性设计:封装材料耐焊接热(符合J-STD-020标准),可承受多次焊接循环;无铅环保设计,符合RoHS指令要求。

四、典型应用场景

1. 消费电子领域

  • 手机、平板、笔记本的USB接口、HDMI接口、音频接口防护,防止用户插拔时的静电放电损坏;
  • 智能手表、手环等可穿戴设备的充电接口、传感器模块防护,应对日常使用中的静电冲击。

2. 工业控制领域

  • PLC(可编程逻辑控制器)的输入输出端口防护,抵御工业现场的电磁干扰和浪涌;
  • 温度、压力传感器的信号线路防护,避免环境浪涌导致的传感器失效。

3. 通信设备领域

  • 路由器、交换机的以太网接口防护,防止雷击感应浪涌和静电放电;
  • 基站设备的射频接口防护,保障通信链路稳定。

4. 汽车电子扩展应用

(基于宽温参数)车载多媒体系统的USB接口、蓝牙模块防护,适应车载环境的宽温变化(-40℃~85℃常规车载温度范围被其覆盖)。

五、品牌与品质保障

由GOODWORK(固得沃克) 出品,该品牌专注TVS/ESD防护器件10余年,产品具备:

  • 参数一致性:采用先进芯片制造工艺,Vbr偏差控制在±5%以内,批量应用无性能波动;
  • 可靠性验证:通过高温存储(150℃×1000h)、温度循环(-55℃~150℃×1000次)、脉冲寿命测试等,满足IEC 61000-4-2(ESD)、IEC 61000-4-5(浪涌)等标准;
  • 环保合规:无铅无卤,符合RoHS、REACH指令,可进入全球主流市场。

总结

SMBJ30CA凭借双向防护、宽电压范围、高脉冲耐受能力和宽温设计,成为电子电路过压防护的高性价比选择,覆盖消费电子、工业、通信等多领域,可有效降低设备因静电/浪涌导致的故障率。

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