WMSIC Electronic Components

DOWO SMBJ6.0CA

ModelSMBJ6.0CA
PackageSMB(DO-214AA)
BrandDOWO
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
DOWO SMBJ6.0CA
Type
DOWO
Minimum package
3000

Technical parameters

Electronic Component
DOWO
Electronic Component
SMBJ6.0CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.21g
Electronic Component
1
Electronic Component
BM0264801944
Operating Temperature
55℃~+150℃
Voltage
10.3V
Current(Ir)
800uA
Voltage(VBR)
6.67V
Electronic Component
3000
Power(Ppp)
600W@10/1000us

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

SMBJ6.0CA瞬态抑制二极管产品概述

SMBJ6.0CA是东沃(DOWO)推出的双向表面贴装瞬态抑制二极管(TVS),采用SMB(DO-214AA)封装,专为6V以下低电压电路的瞬态过压防护设计,可有效抑制正负方向的瞬态脉冲干扰,广泛适配消费电子、汽车电子及通信设备等领域。

一、产品核心定位与典型应用场景

该器件针对5V/5.5V工作电压的电路,提供双向瞬态防护,解决雷击、静电放电(ESD)、电快速瞬变脉冲群(EFT)或电源波动引发的过压问题。典型应用包括:

  • 消费电子:手机、平板、笔记本的USB接口、音频接口防护;
  • 汽车电子:车载传感器、中控系统接口、CAN总线端口防护(适配-55℃~+150℃宽温);
  • 通信设备:路由器RJ45接口、射频模块端口防护。

二、关键电气参数解析

SMBJ6.0CA的核心参数围绕“低电压兼容+高脉冲耐受”设计,具体如下:

  1. 反向截止电压(Vrwm):6V
    电路正常工作时反向截止,可承受最大持续电压6V,与5V系统完全兼容,不干扰信号传输。
  2. 钳位电压:10.3V
    瞬态脉冲触发时快速导通,将后级电压钳位在10.3V以下,避免损坏MCU、传感器等敏感器件。
  3. 峰值脉冲功率(Ppp):600W@10/1000us
    10/1000us波形(模拟雷击脉冲)下,最大耐受脉冲功率600W,可承受中等强度瞬态冲击。
  4. 峰值脉冲电流(Ipp):58.25A
    对应600W功率的峰值电流,为电路提供充足过流防护。
  5. 击穿电压:6.67V
    导通阈值比Vrwm高0.67V,确保正常工作时不导通,仅在过压时响应。
  6. 反向漏电流(Ir):800uA
    漏电流极小,对电路功耗影响可忽略,适合电池供电设备。
  7. 工作温度:-55℃~+150℃
    宽温设计,通过高低温老化测试,适配汽车、工业 harsh环境。

三、封装与物理特性

采用SMB(DO-214AA)表面贴装封装,具备以下特点:

  • 尺寸紧凑:4.7mm(长)×2.7mm(宽)×1.5mm(高),适合高密度PCB布局,满足便携设备小型化需求;
  • 无铅环保:符合RoHS标准,引脚无铅镀层,适配现代制造工艺;
  • 焊接兼容:支持回流焊(峰值≤260℃,持续≤10s)、波峰焊(≤240℃,持续≤5s)。

四、性能优势与可靠性

该器件在防护与可靠性上具备明显优势:

  1. 双向防护无需配对:同时应对正负脉冲,无需并联反向器件,简化电路设计;
  2. 快速响应ns级:TVS典型响应时间纳秒级,可在脉冲到达前级前快速钳位;
  3. 宽温可靠性:-55℃~+150℃范围,适配汽车级应用(推测通过AEC-Q101测试);
  4. 低功耗漏电流:800uA漏电流,对电池供电设备无额外功耗负担。

五、应用注意事项

  1. 选型匹配:Vrwm需高于电路工作电压(如5V系统选6V),钳位电压需低于后级器件耐压(如MCU耐压12V,10.3V安全);
  2. 焊接规范:遵循 datasheet 温度曲线,避免过热损坏;
  3. 并联扩容:需更高脉冲电流时,可并联多个器件(确保参数一致,避免不均流);
  4. 布局建议:靠近被保护端口/器件,缩短布线长度,减少寄生电感影响防护效果。

SMBJ6.0CA以紧凑封装、双向防护及宽温可靠性,成为低电压电路瞬态防护的高性价比选择,适配多种电子设备的过压防护需求。

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