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FUXINSEMI SMBJ5.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FUXINSEMI SMBJ5.0CA
- Type
- FUXINSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FUXINSEMI
- Electronic Component
- SMBJ5.0CA
- Electronic Component
- 1
- Package
- SMB(DO-214AA)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.209g
- Electronic Component
- 1
- Electronic Component
- BM0225802219
- Voltage
- 9.2V
- Current(Ir)
- 800uA
- Voltage(VBR)
- 6.4V
- 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.
SMBJ5.0CA 产品概述
一、产品简介
SMBJ5.0CA 是富芯森美（FUXINSEMI）出品的一款双向瞬态电压抑制器（TVS），封装为 SMB（DO-214AA）。该器件专为保护 5V 级电源与信号线免受浪涌、雷击和开关瞬变冲击而设计，具有高冲击吸收能力与双向抑制特性，适用于交流/双向瞬态保护场合。
二、电气特性（主要参数）
- 反向截止电压 Vrwm：5V（稳压工作点，适合 5V 系统保护）
- 击穿电压（Vbr）：6.4V（触发导通的阈值）
- 钳位电压（Vc）：9.2V（在峰值脉冲条件下的典型钳位）
- 峰值脉冲功率 Ppp：600W，测试脉冲波形 10/1000μs
- 峰值脉冲电流 Ipp：65.2A（对应于器件在 Ppp 条件下的脉冲电流能力）
- 反向漏电流 Ir：800μA（在 Vrwm 条件下的典型或最大漏电）
- 极性：双向（无极性限制，正负方向均可抑制）
三、关键性能与优势
- 强抗冲击：600W@10/1000μs 的脉冲吸收能力，能应对常见雷击与开关瞬态。
- 双向保护：适合需要正负双向浪涌抑制的电路，如交流小信号线、双向数据/电源接口。
- 适配 5V 系统：Vrwm=5V 与 Vbr≈6.4V 的组合，能在不影响正常工作电压的前提下快速夹断过电压。
- SMB 封装便于自动贴片和散热管理，适合中等功率的板级保护需求。
四、应用场景
- 5V 电源输入与总线保护（嵌入式设备、电源模块）
- 通信接口与数据线防护（USB、RS-485 等需双向抑制的场合）
- 工业控制与自动化设备的浪涌防护
- 消费电子、安防和仪表的板级防护
五、使用与布局建议
- 尽量将 TVS 靠近受保护器件或连接器放置，减小引线感抗与寄生电感。
- 在可能的大能量脉冲场合，配合熔断器或限流器使用以提高系统可靠性。
- 注意散热：长时间重复脉冲或高温环境下应作适当降额。
- 双向器件在 PCB 上无需方向标记，但应保证焊接可靠，避免冷焊或虚焊。
六、封装与可靠性
SMB（DO-214AA）封装易于回流焊接，机械强度高，适合自动化贴装流程。器件经过浪涌与温度循环测试，适配工业级应用环境，但在特殊苛刻环境下建议进行系统级验证。
总结：SMBJ5.0CA 以其针对 5V 系统的电气参数、高脉冲吸收能力和双向保护特性，适合多种板级与接口浪涌防护应用。在设计时重视布局、散热与配套保护元件，可获得可靠的过压防护效果。
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