WMSIC Electronic Components

TECH PUBLIC SMBJ6.0CA

ModelSMBJ6.0CA
PackageDO-214AA(SMB)
BrandTECH PUBLIC
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC SMBJ6.0CA
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
SMBJ6.0CA
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.188g
Electronic Component
1
Electronic Component
BM0231019650
Operating Temperature
55℃~+150℃
Voltage
10.3V
Current(Ir)
120uA
Voltage(VBR)
7.37V
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.

SMBJ6.0CA 产品概述

一、产品简介

SMBJ6.0CA 是 TECH PUBLIC(台舟电子)出品的一款双向瞬态电压抑制器(TVS),封装为 DO-214AA(SMB),主要用于保护敏感电子电路免受雷击、电感性负载断开或开关瞬态等引起的脉冲过压。该器件在低电压电源与信号线上表现出可靠的抑制能力,适合汽车电子、通信设备、工业控制和消费类电子等领域。

二、主要性能参数

  • 极性:双向(双向抑制,适用于交流或双向脉冲场合)
  • 反向截止电压(Vrwm / 工作电压):6 V
  • 击穿电压(Vbr):7.37 V(典型)
  • 钳位电压(在指定脉冲条件下):10.3 V
  • 峰值脉冲电流(Ipp):58.3 A @ 10/1000 μs
  • 峰值脉冲功率(Ppp):600 W @ 10/1000 μs
  • 反向电流(Ir):120 μA(通常在 Vrwm 条件下测量)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 封装:DO-214AA (SMB)
  • 类型:TVS(二极管型瞬态抑制器)

三、核心特点

  • 强大的浪涌吸收能力:在 10/1000 μs 波形下可承受 600 W 峰值功率和 58.3 A 峰值脉冲电流,适合应对较长时间宽度的脉冲能量。
  • 双向保护:对于需要双向浪涌抑制(例如交流线路或可能出现正/负极性的瞬态)提供对称保护,无需额外极性处理。
  • 低钳位电压:典型钳位电压 10.3 V,可在脉冲事件中有效限制保护电路承受的电压幅度,减少下游器件的应力。
  • 宽温度工作范围:-55 ℃ 到 +150 ℃,满足苛刻环境和高温工况的可靠性要求。
  • 可靠封装:SMB(DO-214AA)封装兼顾散热与易焊性,适合自动化贴装与回流焊工艺。

四、典型应用场合

  • 汽车电子系统(车载电源总线、传感器与通讯接口)——在满足汽车级温度与冲击条件下进行瞬态保护。
  • 通信设备(线路接口、收发模块)——保护端口免受雷击和静电放电引起的过压。
  • 工业控制与自动化设备——电机驱动、继电器回路和传感器信号线的浪涌抑制。
  • 消费类电子(电源适配器、USB/串口保护)——在输入/输出端口对浪涌和电压尖峰进行抑制。

五、封装与安装要点

  • 封装为 DO-214AA(SMB),适配常见 SMB 焊盘布局,便于批量生产及标准化 PCB 设计。
  • 建议在靠近被保护器件的线路输入端或连接器处布局 TVS,以最小化未受保护走线长度,从而提高保护效果。
  • 焊接工艺需遵循 SMT 回流焊温度曲线,避免超温导致封装或内部结构损伤;存放与焊接前注意防潮处理(如资料要求)。

六、使用建议与注意事项

  • 双向器件在电路中等效于两个反并联的单向 TVS,请在设计时确认工作电压方向与抑制极性匹配。
  • 反向电流 Ir(典型 120 μA)在高阻抗电路或低功耗应用可能需考虑其对系统静态电流的影响。
  • 钳位电压 10.3 V 表示在指定脉冲(10/1000 μs)下的典型抑制电压,实际应用中钳位电压随脉冲峰值电流和波形变化,需按最坏工况评估下游器件承受能力。
  • 长期频繁承受高能脉冲会降低器件寿命,建议对可能频繁浪涌的场合增加外部限流或多级保护措施。

七、典型浪涌防护电路(简述)

  • 单端保护:将 SMBJ6.0CA 并联接入被保护线路与地(或共参考点),对于双向器件,直接并联即可实现正负方向浪涌抑制。
  • 多级保护:在靠近外部接口处使用 SMBJ6.0CA 做第一道抑制,配合后级低电压 TVS 或保险丝/热敏电阻实现能量分摊与故障隔离,提高整体可靠性。

八、选型建议

  • 若系统工作电压接近 6 V 或需对 ±6 V 级别的脉冲进行保护,SMBJ6.0CA 是合适选择;若系统允许更高工作电压,应选择更高 Vrwm 的型号以避免误触发。
  • 对于需求更高能量吸收能力或更低钳位电压的应用,可在考虑封装和布局的前提下比较其他功率等级或更低钳位特性的型号。

总结:SMBJ6.0CA 提供了在 SMB 封装下较高能量吸收能力与稳健的双向浪涌保护,适合多种需要 ±6 V 级保护的工业、汽车及通信场景。选用时请结合系统工作电压、允许的钳位电压与脉冲能量分布进行评估,以达到最佳的保护效果和长期可靠性。

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