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YANGJIE SMBJ18CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
13
specifications
Core information
- Product name
- YANGJIE SMBJ18CA
- Type
- DO-214AA(SMB)
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YANGJIE
- Electronic Component
- SMBJ18CA
- Electronic Component
- 1
- Package
- DO-214AA(SMB)
- Electronic Component
- 0.205g
- Electronic Component
- 1
- Electronic Component
- BM0228719273
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMBJ18CA 产品概述
一、概述
SMBJ18CA 是扬杰（YANGJIE）出品的一款双向瞬态电压抑制（TVS）二极管，采用SMB (DO‑214AA) 封装，专为抑制瞬态过电压、保护敏感电子元器件而设计。器件在18V工作电压下能快速夹止冲击浪涌，适用于电源线、信号线和通信接口的浪涌防护。
二、主要电气参数
- 极性：双向（Bidirectional），可防正负极性瞬态脉冲
- 反向工作电压 VRWM：18V
- 击穿电压（典型）：22.1V
- 钳位电压 Vc（Ipp 条件下）：29.2V
- 峰值脉冲电流 Ipp：20.5A（波形 10/1000μs）
- 峰值脉冲功率 Ppp：600W（波形 10/1000μs）
- 反向漏电流 Ir：最大 5μA（在规定 VRWM 条件下）
以上参数体现了器件在长脉冲能量吸收和稳压钳位方面的良好性能。
三、性能特点
- 高能量吸收：在10/1000μs脉冲下可承受600W峰值功率，适合汽车级、工业级的浪涌事件。
- 低钳位电压：29.2V 的钳位电压可有效限制被保护节点电压，减小后级元件应力。
- 低漏电流：最大 5μA 的反向漏电流，保证在正常工作状态下不会影响电路性能。
- 双向保护：无需区分极性，适合交流或双向脉冲环境。
四、应用场景
- 电源线防护：直流/交流电源输入端、配电模块的浪涌抑制。
- 汽车电子：车载总线、车灯、电子控制单元（ECU）对瞬态干扰的保护。
- 通信接口：以太网、串口、电信设备的防雷防浪涌。
- 工业控制：PLC、传感器接口和现场总线的瞬态抑制。
五、封装与可靠性
SMB (DO‑214AA) 封装提供良好的热散能力和机械强度，便于波峰/回流焊安装与自动化生产。扬杰品牌的品质控制和测试流程确保器件在温度循环、冲击和高湿环境下具有稳定的长期可靠性。
六、使用建议
- 在设计时应预留合适的焊盘并考虑散热路径，确保脉冲能量释放不会导致封装过热。
- 双向器件在直流单向系统中也可使用，但应关注正负方向下的工作电压与漏电流。
- 与串联保险丝或限流元件配合使用，可提高系统对更大能量脉冲的承受能力。
SMBJ18CA 以其高冲击吸收能力、可靠的钳位特性和便于装配的SMB封装，为多种工业与汽车场景提供了经济且高效的瞬态过压保护方案。
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