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DOWO SMBJ7.0A
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMBJ7.0A
- Type
- DOWO
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMBJ7.0A
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.2g
- Electronic Component
- 1
- Electronic Component
- BM0231110372
- Operating Temperature
- 55℃~+150℃
- Voltage
- 12V
- Current(Ir)
- 200uA
- Voltage(VBR)
- 7.78V
- 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.
SMBJ7.0A 产品概述
一、产品概述
SMBJ7.0A 是 DOWO（东沃）出品的一款单向 TVS（瞬态电压抑制）二极管，采用 SMB（DO-214AA）封装，专为抑制浪涌、浪涌电压和电磁干扰导致的瞬态过压设计。器件在反向工作时具有较低的箝位电压和快速响应能力，适合保护电源线、数据线和敏感电子元件免受脉冲浪涌损坏。
二、主要电气参数
- 类型：单向 TVS
- 反向截止电压 Vrwm：7 V
- 击穿电压（典型）：7.78 V
- 钳位电压 Vc：12 V（在脉冲条件下）
- 峰值脉冲电流 Ipp：50 A
- 峰值脉冲功率 Ppp：600 W（10/1000 μs 波形）
- 反向漏电流 Ir：200 μA
- 工作温度范围：-55 ℃ 至 +150 ℃
以上参数在典型测试条件下取得，实际应用中应依据电路和热环境做适当留量。
三、典型应用场景
- 电源输入/输出端口的浪涌保护（适配器、DC 输入）
- 通信接口与数据线保护（串口、CAN、RS485 等）
- 工业控制设备和仪表的过压防护
- 汽车电子外部接口（需结合系统要求确认）
- 家用电器和消费电子的瞬态抑制
四、封装与安装建议
SMB（DO-214AA）封装提供良好的热容量与机械强度。建议：
- 将器件尽可能靠近被保护节点或连接器布置，以最小化寄生电感。
- 单向 TVS 的标记端（阴极）应连接至电源线/信号线，另一端（阳极）接地（或系统公共参考）。
- 建议在 PCB 布线时使用加宽的焊盘和热过孔以利散热。
五、可靠性与使用注意
- SMBJ7.0A 为浪涌吸收元件，不宜长期承受高能耗或连续大电流；超出规格的多次冲击可能导致性能退化。
- 在高温或高能脉冲场景下应考虑器件的热耗散与间隔时间，必要时并联或使用更高功率等级器件。
- 选型时请确认钳位电压与被保护电路的耐压裕量，避免钳位后仍造成下游器件损伤。
- 存储与焊接请遵循厂家推荐的静电防护和回流焊温度曲线。
六、选型建议
如目标线电压接近 7 V，且需在 10/1000 μs 浪涌下将峰值电压钳制在 ≈12 V 内，SMBJ7.0A 是经济且可靠的选择。对更高脉冲能量或更低钳位要求的应用，应考虑更大功率或更低钳位等级的 TVS 器件。
如需样品、完整规格书或应用电路示例，可联系 DOWO（东沃）或授权分销商获取详细资料与可靠性测试数据。
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