Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BORN SMBJ180A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMBJ180A
- Type
- BORN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMBJ180A
- Electronic Component
- 1
- Package
- SMB
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.214g
- Electronic Component
- 1
- Electronic Component
- BM0264900528
- Voltage
- 292V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 201V
- 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.
SMBJ180A 产品概述
一、概述
SMBJ180A 为 BORN（伯恩半导体）出品的单向功率型瞬态电压抑制二极管（TVS），采用 SMB 封装，专为直流电源端口和工业电源保护设计。器件在脉冲冲击下具有高能量吸收能力与低漏电流特性，适用于对瞬态过电压、雷击和开关浪涌保护要求较高的场合。
二、主要参数
- 极性：单向
- 反向截止电压 Vrwm：180 V
- 击穿电压 VBR：201 V（典型）
- 钳位电压 Vclamp：292 V（在峰值脉冲条件下）
- 峰值脉冲电流 Ipp：2.1 A
- 峰值脉冲功率 Ppp：600 W（脉冲条件下）
- 反向电流 Ir：1 µA（在 Vrwm 下）
- 封装：SMB（表面贴装）
注：Ppp、Ipp 与 Vclamp 之间存在近似关系，可由 Ppp/Vclamp 大致估算允许的峰值脉冲电流，数据间一致性良好。
三、典型应用
- 开关电源输入端和直流配电总线防护
- 工业控制设备及驱动电源防雷击、浪涌保护
- 通信电源、基站电源及充电桩等设备的过压抑制
- 消费电子中高压电源线路保护
四、设计与布局建议
- 单向 TVS 的阳极接地，阴极并联到被保护正极线上，平时呈反向关断状态。
- PCB 布局应尽量缩短 TVS 与被保护节点之间的走线，增大地铜面积以利散热。
- 在高能量冲击情况下，注意为 TVS 提供良好的热沉和焊盘铜量，防止重复冲击导致性能退化。
- 与低通滤波、电感等元件配合时，考虑冲击能量的分流路径，避免产生回路共振。
五、选型与注意事项
- 选型时 Vrwm 应略高于正常工作电压，但低于系统允许的最大瞬态电压。
- 注意钳位电压对后端设备的承受能力，钳位电压越低对被保护器件越友好，但通常伴随更大结温升与成本。
- 留意峰值脉冲功率的测试条件（脉冲波形、宽度），实际使用环境中可能需要考虑多次冲击及温度影响，适当留有裕量。
- 对于要求极低漏电的场合，可参考 Ir 值并在实际温度条件下验证。
六、包装与采购
- 封装：SMB，便于自动贴装与波峰/回流焊工艺。
- 品牌：BORN（伯恩半导体），常备料，适合电源口常用料替换与量产备件。
- 采购时建议索取完整数据手册、冲击波形下的 V-I 曲线及可靠性测试报告，以确保在目标应用中的长期稳定性。
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