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BORN SMAJ8.0CA
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMAJ8.0CA
- Type
- BORN
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMAJ8.0CA
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.103g
- Electronic Component
- 1
- Electronic Component
- BM0258858725
- Voltage
- 13.6V
- Current(Ir)
- 50uA
- Voltage(VBR)
- 8.89V
- Electronic Component
- Electronic Component
- Electronic Component
- 5000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMAJ8.0CA 产品概述
一、产品简介
SMAJ8.0CA 是 BORN（伯恩半导体）出品的一款双向瞬态电压抑制器（TVS），采用 SMA 封装，专为抑制电源与信号线上的瞬态过压（如雷击、浪涌和静电放电）设计。其双向结构适合交流或双极性脉冲环境，体积小、响应快，便于表面贴装自动化生产。
二、主要电气参数
- 极性：双向
- 反向截止电压 Vrwm：8 V（典型稳态工作电压）
- 击穿电压（Vz）：8.89 V（典型）
- 钳位电压：13.6 V @ 29.4 A（在峰值脉冲电流条件下）
- 峰值脉冲电流 Ipp：29.4 A
- 峰值脉冲功率 Ppp：400 W（峰值，典型脉冲条件下）
- 反向电流 Ir：50 μA（在 Vrwm 附近）
- 封装：SMA（便于 SMT 工艺）
以上参数为典型电气特性，具体试验条件请参见厂方数据手册。
三、产品特性与优势
- 双向抑制：对正负向脉冲均能有效钳位，适合交流或双极性浪涌场合。
- 高效钳位能力：13.6V 的钳位电压能够在 29.4A 脉冲时保护下游器件，降低过压对电路的破坏风险。
- 高峰值功率承受：400W 峰值脉冲功率，能应对较强的瞬态能量输入。
- 低漏电：工作电压附近反向漏电仅 50 μA，有利于低功耗系统长期使用。
- 标准 SMA 封装：适合批量 SMT，散热和可靠性均易于控制。
四、典型应用场景
- 低压直流/交流电源浪涌保护（Vrwm≈8V 的系统）
- 数据线、通信线和接口保护（如信号线的双向浪涌）
- 工业控制、消费电子、仪表等需要抑制瞬态过电压的场合
（对于高压或汽车车载 12V 系统，需根据系统电压与浪涌能量选择合适型号。）
五、封装与布局建议
- 将 SMAJ8.0CA 放置于被保护器件靠近入口处，尽量缩短 PCB 走线，减小寄生电感。
- 保持焊盘与散热区域良好接触，必要时在焊盘下方或周围增加铜箔以利散热。
- 与保险丝、熔断器或电阻配合使用，可提升整个浪涌保护方案的能量承受能力与可靠性。
- 遵循厂商推荐的回流焊工艺参数，避免过高回流温度损伤器件。
六、使用注意与选型建议
- 确认系统正常工作电压不超过 Vrwm（8V），否则会产生额外漏电或错误触发。
- 钳位电压 13.6V 意味着受保护电路需能承受该电压短时存在，否则应选取钳位更低或额外限流方案。
- 峰值功率与脉冲波形（持续时间）有关，选型时应核对厂方在特定脉冲条件下的 Ppk/Ipp 定义。
- 对长期可靠性或高能量冲击场合，建议参考完整数据手册并进行实际电路级别的浪涌测试验证。
如需进一步的封装尺寸图、典型特性曲线或数据手册可提供详细型号资料以便查阅与对比选型。
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