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BORN SMAJ8.5CA
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BORN SMAJ8.5CA
- Type
- BORN
- Minimum package
- 5000 未知
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BORN
- Electronic Component
- SMAJ8.5CA
- Electronic Component
- 1
- Package
- SMA
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.1g
- Electronic Component
- 1
- Electronic Component
- BM0264692208
- Operating Temperature
- 55℃~+150℃
- Voltage
- 14.4V
- Current(Ir)
- 20uA
- Voltage(VBR)
- 9.44V
- 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.
SMAJ8.5CA 产品概述
SMAJ8.5CA 是伯恩半导体（BORN）推出的一款高能脉冲抑制二极管（TVS），采用SMA封装，专为电源口及数据线的瞬态过压和浪涌脉冲保护设计。该器件为双向结构，可在正、负方向对冲击脉冲进行对称钳位，适用于需要双向保护的供电或交流接口场景。
一、主要参数一览
- 类型：功率TVS（双向）
- 反向稳态电压（Vrwm）：8.5V
- 击穿电压（VBR）：9.44V
- 钳位电压（Vcl，峰值）：14.4V
- 峰值脉冲电流（Ipp）：27.8A
- 峰值脉冲功率（Ppp，10/1000μs）：400W
- 反向漏电流（Ir）：20μA
- 工作温度范围：-55℃ ~ +150℃
- 封装：SMA（表面贴装）
二、产品特性与优势
- 高功率吸收：400W 的峰值脉冲功率能力，可有效吸收短时大能量浪涌，适合防护雷击、开关突变和线路感应脉冲。
- 低钳位电压：14.4V 的钳位值在最大冲击下能提供较低的过压幅度，减少后端电路承受的应力。
- 双向保护：对称的钳位特性使其可直接用于双极性电源或交流侧的浪涌保护，无需额外极性判断。
- 宽工作温度：-55℃ 至 +150℃ 的耐温范围，适用于工业级环境和对温度有较高要求的应用场景。
- 小型SMA封装：占板面积小，便于自动贴装与量产，有利于成本与空间控制。
三、典型应用场景
- 电源输入口保护（DC供电、适配器接口）
- 通讯与外设接口的瞬态抑制（USB、串口延长线等双向需求）
- 工业控制设备、电源模块和终端设备的浪涌保护
- 电池管理、充电器与光伏逆变器中的保护电路
四、设计与布局建议
- 尽量将TVS器件靠近受保护端口放置，缩短走线以减小串联电感，提升响应速度和吸收效果。
- 在高能脉冲环境下，保证焊盘与周边铜箔有良好散热路径，必要时增加热孔或散热铜皮以提升耗散能力。
- 双向TVS直接并联在被保护回路的正负两端；若是单向电源建议采用相应单向型号以提高稳态性能。
- 考虑到峰值钳位与能量吸收特性，对下游敏感器件可辅以串联阻抗（阻容）或熔断器实现分级保护。
五、可靠性与取用注意
- 在多次或极大能量冲击后，器件性能可能退化，建议关键设备在遭受过冲击后进行功能与绝缘检测并视情况更换。
- 储存与回流焊工艺应遵循SMA封装的热可靠性规范，避免超温或反复热循环导致封装应力损伤。
- 反向漏电流较小（20μA），但在超低电流或高灵敏度电路中应评估漏电对电路的影响。
SMAJ8.5CA 以其高能量吸收能力、低钳位电压与宽温度适应性，适合用于需要可靠瞬态保护且空间受限的电源与接口场合，是电源端口常用的保护器件之一。如需样片、详细封装图或温升/能量曲线数据，可联系供货方获取更详尽的器件资料。
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