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DOWO SMBJ90A
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ90A
- Type
- DOWO
- Minimum package
- 3000
Technical parameters
- Electronic Component
- DOWO
- Electronic Component
- SMBJ90A
- 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
- BM0231093694
- Operating Temperature
- 55℃~+150℃
- Voltage
- 146V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 100V
- 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.
SMBJ90A（DOWO 东沃）瞬态抑制二极管 产品概述
一、产品简介
SMBJ90A 是东沃（DOWO）出品的一款单向 TVS（瞬态电压抑制）二极管，采用 SMB（DO-214AA）表面贴装封装，专为抑制线路上的瞬态过电压和浪涌脉冲而设计。典型用于直流母线、工业电源、通信接口及汽车电子等需要过压保护的场合。
二、主要电气参数
- 反向工作电压 Vrwm：90 V（最大允许直流或静态反向电压）
- 击穿电压 Vbr（典型）：100 V（击穿区间开始）
- 钳位电压 Vc：146 V（在标准1ms/10ms/10/1000μs 测试条件下的典型钳位值）
- 峰值脉冲功率 Ppp：600 W（10/1000 μs 波形）
- 峰值脉冲电流 Ipp：4.11 A（由 Ppp / Vc 计算得出）
- 反向漏电流 Ir：1 μA（在 Vrwm 条件下）
- 工作结温度范围：-55 ℃ ～ +150 ℃
- 极性：单向配置（推荐用于直流保护）
三、封装与机械特性
SMB（DO-214AA）封装，适合标准 SMT 流程，体积与散热性能在中等功率 TVS 中平衡良好。封装上有极性标记，便于快速识别阴极方向并正确过孔布局或焊盘设计。
四、典型应用场景
- 工业电源与逆变器直流母线保护
- 通信设备线路防雷/浪涌保护
- 电机驱动与传感器接口的浪涌抑制
- 汽车电子非典型车规环境（请确认全车级认证需求）
五、使用建议与注意事项
- 器件应尽量贴近被保护端口布局，减少走线电感与寄生电阻，以获得最佳钳位效果。
- 对于反复高能脉冲，建议考虑功率裕量和热管理，避免长期在额定 Ppp 下持续工作。
- 单向器件对直流正向浪涌效果最佳；若用于交流或双向保护，应选用双向型号。
- 焊接时遵循厂家推荐的回流温度曲线，避免过热影响可靠性。存储与使用时注意防潮防静电。
如需更详细的电气特性曲线、典型钳位电压随脉冲幅值变化图或封装尺寸图，可提供具体图纸或型号索引以便获取完整数据手册。
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