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Jingdao Microelectronics SMAJ36A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Electronic SMAJ36A
- Type
- Jingdao Microelectronics
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic
- Electronic Component
- SMAJ36A
- Electronic Component
- 1
- Package
- SMA
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.12g
- Electronic Component
- 1
- Electronic Component
- BM0226519428
- Operating Temperature
- 65℃~+150℃
- Voltage
- 58.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 44.2V
- 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.
SMAJ36A CP（SMA封装）TVS二极管 产品概述
一、产品简介
SMAJ36A CP 是晶导微电子推出的一款SMA封装瞬态抑制二极管（TVS），用于对电子线路的瞬态过压（雷击、电源浪涌、静电放电等）进行快速钳位与吸收。该器件具有高峰值脉冲功率、低反向漏电并且工作温度范围宽，适合对36V级电源或信号线提供可靠的瞬态保护。
二、主要电气参数
- 钳位电压（Vc）：58.1V（在相应试验脉冲条件下测得）
- 击穿电压（Vbr）：44.2V
- 反向截止电压（Vrwm，稳态工况）：36V
- 峰值脉冲功率（Ppp）：400W @ 10/1000μs（典型浪涌能量吸收能力）
- 峰值脉冲电流（Ipp）：6.9A @ 10/1000μs
- 反向电流（Ir）：1μA（在Vrwm条件下的典型漏电）
- 工作温度范围：-65℃ ~ +150℃
- 类型：TVS二极管
- 封装：SMA（表面贴装）
三、性能特色与优势
- 高能量吸收：400W（10/1000μs）能力，能应对常见的工业和通信类浪涌冲击。
- 有效钳位：在规定冲击电流下钳位电压约58.1V，能将危险过压限制在可接受范围内，保护后级器件。
- 低漏电流：1μA的反向漏电有助于在静态或低功耗应用中降低待机损耗。
- 宽温度适应性：-65℃至150℃覆盖大多工业与恶劣环境使用需求。
- 标准封装：SMA外形便于自动贴装和替换，兼容常见PCB布局。
四、典型应用场景
- 电源输入保护：12V/24V/36V 等直流电源总线的浪涌与反向抑制。
- 工业控制设备与PLC接口保护。
- 通信设备、电信接口与网通设备的过压防护。
- 电池管理、充放电系统及逆变器的瞬态防护。
- 需要耐高温与宽工作环境的嵌入式设备和户外终端。
五、设计与使用建议
- 选型注意：确保Vrwm（36V）高于设备正常最大工作电压，以避免误触发；同时钳位电压（58.1V）应低于被保护器件可承受的最高耐压。
- 布局与散热：将TVS尽量靠近被保护端口并短引线布线，以降低寄生电感；考虑在高能量场合加强PCB散热路径或使用铜箔散热。
- 考虑串联阻抗：为了减少冲击电流对器件瞬时应力，可配合串联阻抗或限流元件使用。
- 功率与重复冲击：规范Ppp是在指定脉冲波形下测得，频繁或超额冲击会加速器件损耗，需评估寿命与冗余设计。
- 极性与型号确认：在实际电路中确认所需的单向或双向保护类型（如为单向使用，负极接地时注意方向）。
六、总结
SMAJ36A CP（SMA封装）是一款面向36V级保护的高能量TVS器件，凭借400W的脉冲吸收能力、较低的漏电和宽温度范围，适合工业、通信、电源和户外等需要可靠瞬态保护的应用场景。在实际设计中应结合系统工作电压、钳位要求和散热条件进行合理布局与选型，以发挥器件的最佳保护效果。
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