WMSIC Electronic Components

GOODWORK SMBJ26CA

ModelSMBJ26CA
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 SMBJ26CA
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
SMBJ26CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.175g
Electronic Component
1
Electronic Component
BM0229305569
Operating Temperature
55℃~+150℃
Voltage
42.1V
Current(Ir)
5uA
Voltage(VBR)
28.9V
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.

SMBJ26CA(GOODWORK 固得沃克)产品概述

SMBJ26CA 是一款针对静电放电(ESD)与浪涌冲击的瞬态电压抑制二极管(TVS),采用 SMB (DO-214AA) 封装,适用于需要高能脉冲吸收能力及双向保护的电源和信号线路保护场景。该器件具有快速响应、低漏电和较高的峰值脉冲功率,适合工业、通信、消费电子等多种应用。

一、主要参数要点

  • 类型:TVS 二极管(双向)
  • 钳位电压(Vc):42.1 V
  • 工作温度范围(结温 Tj):-55 ℃ ~ +150 ℃
  • 击穿电压(Vbr):28.9 V
  • 反向(稳压)工作电压 Vrwm:26 V
  • 峰值脉冲功率(Ppp):600 W(标准脉冲条件下)
  • 峰值脉冲电流(Ipp):14.2 A
  • 反向漏电流(Ir):5 μA
  • 封装:SMB (DO-214AA)
  • 品牌:GOODWORK(固得沃克)

二、核心特性与优势

  • 双向保护:对正负极性浪涌均能有效钳位,适用于交流或可反向电压环境(例如数据线、通信线或带有反向极性的电源线路)。
  • 高脉冲吸收能力:600 W 峰值脉冲功率与 14.2 A 峰值脉冲电流,能够吸收较大能量的瞬态浪涌,保护后端元件不被破坏。
  • 宽温度适应性:-55 ℃~+150 ℃ 的工作温度范围,适合恶劣环境或工业级应用。
  • 低漏电:典型反向漏电仅 5 μA,减小静态能耗与对敏感电路的影响。
  • SMB 封装:易于 SM T 贴装,便于自动化生产和热管理处理。

三、典型应用场景

  • 电源输入防护:26 V 额定电压的直流电源轨保护(例如工业电源、车用辅助电路的局部防护)。
  • 通信与接口保护:以太网、串行总线与信号线的浪涌/ESD 防护,特别适用于需双向钳位的场合。
  • 电池管理与充电系统:防止充放电瞬态或外部浪涌导致器件损坏。
  • 工业控制与自动化设备:为敏感控制器和传感器提供稳健的瞬态抑制。

四、设计与选型建议

  • 依据工作电压选择:Vrwm=26 V,适用于稳态最高约 26 V 的线路;若线路长期电压高于此值,应选择更高 Vrwm 的型号。
  • 双向 vs 单向:若被保护线路会出现反向极性或交流成分,优先选用双向(SMBJ26CA);对纯直流单向保护,单向 TVS 会有更低的钳位电压与更小的漏电。
  • 功率与脉冲波形:600 W 表示在标准脉冲波形条件下的峰值吸收能力(请参考供应商数据手册了解具体脉冲波形与测试条件)。设计时应考虑击穿后重复冲击与热耗散能力,必要时并联或选用更高功率等级器件。
  • PCB 布局:尽量缩短被保护线与 TVS 的连接长度,增大焊盘和铜箔面积以便热散,必要时增加热沉或过孔改善导热。

五、封装与工艺注意

  • 封装:SMB (DO-214AA),适配常规 SMB 插件与贴片方案。
  • 焊接与回流:遵循供应商的回流曲线和焊接建议,避免超过器件承受的峰值温度与热循环规格。
  • 存储与搬运:防潮包装与静电防护,避免在装配过程中受到未受控的强静电冲击。

六、可靠性与验证

SMBJ26CA 适合在需要抗 ESD 与浪涌的系统级验证中使用。若项目需满足特定国际标准(如 IEC、ISO 等),建议在选型后要求供应商提供相应的认证或进行系统级测试验证(例如 IEC 61000-4-2 ESD 测试、IEC 61000-4-5 浪涌测试)。

七、结论与推荐

GOODWORK 的 SMBJ26CA 为 26 V 稳压工作点、需要双向保护的应用提供了一款平衡泄放能力、低漏电与高温适应性的 TVS 器件。对于工业、通信和电源输入保护等场景,若系统面对较大能量的瞬态干扰且需对正负极性浪涌防护,该型号是值得首选的保护元件。选型时请结合实际最大工作电压、所需钳位电压与热管理能力,并向供应商索取完整的数据手册与测试条件以完成最终验证。

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