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DOWO SMAJ36CA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SMAJ36CA
- Type
- DOWO
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SMAJ36CA
- Electronic Component
- 1
- Package
- SMA(DO-214AC)
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 0.122g
- Electronic Component
- 1
- Electronic Component
- BM0231093689
- Operating Temperature
- 55℃~+150℃
- Voltage
- 58.1V
- Current(Ir)
- 1uA
- Voltage(VBR)
- 40V
- 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.
SMAJ36CA 产品概述
一、产品简介
SMAJ36CA 为双向瞬态抑制二极管（TVS），由 DOWO（东沃）出品，封装为 SMA（DO‑214AC）。该器件针对雷击、浪涌和静电放电等瞬态过压事件提供高效钳位保护，典型用于直流/交流电源线路、工业控制、通信接口和汽车电子等需双向保护的场合。
二、主要参数与性能
- 极性：双向
- 反向截止电压 VRWM：36 V（额定工作电压）
- 击穿电压（Vbr）：约 40 V
- 钳位电压 VC：58.1 V（在峰值脉冲电流 Ipp 测试点）
- 峰值脉冲电流 Ipp：6.88 A（基于 Ppp 与 VC 计算）
- 峰值脉冲功率 Ppp：400 W（10/1000 μs 波形）
- 反向电流 Ir：≤ 1 μA（在 VRWM 下）
- 工作温度范围：-55 ℃ 至 +150 ℃
该器件按 10/1000 μs 波形进行标称功率测试，适合抑制电力网、通讯线路或电源端口的长时脉冲浪涌。
三、保护能力解读
在 10/1000 μs 测试波形下，SMAJ36CA 可吸收 400 W 的脉冲能量，钳位电压 58.1 V 意味着在峰值浪涌时被保护线上的电压被限制在可接受范围内；峰值脉冲电流约 6.88 A。双向结构可在正负极性瞬变时均工作，适合交流或差分信号线路。
四、典型应用
- 工业电源与配电保护（24V/36V 系统）
- 通讯设备的线路输入保护（以太网端口、RS‑485 总线）
- 汽车电子的辅助线路防雷浪涌（非主要动力总成）
- 家用与楼宇自动化控制器的浪涌抑制
五、PCB 布局与安装建议
- 将 TVS 尽量靠近受保护端口或连接器放置，以最小化串联电感与走线长度。
- 大电流路径使用宽铜和短引线，必要时在焊盘下增加散热铜箔与过孔。
- 对于高能量应用，配合熔断器或限流元件使用，以防器件遭受重复大能量冲击导致损坏。
- 建议采用符合 JEDEC/IPC 的回流焊工艺进行焊接，避免手焊长期过热。
六、选型要点
- 确认系统工作电压，VRWM 应高于正常工作电压且留有余量；SMAJ36CA 适用于 VRWM 约 36 V 的系统。
- 若系统可能承受更高能量浪涌，选择额定 Ppp 更高或并联多个 TVS 并配合限流保护。
- 注意器件钳位电压是否满足被保护元件的耐压限值，58.1 V 钳位适用于需在此电压下存活的器件。
七、包装与可靠性
SMA 封装便于自动贴装与量产，器件工作温度范围宽（‑55 ℃ 至 +150 ℃），适应工业级要求。出厂前通常经过浪涌、耐压与泄漏电流筛选，可靠性符合常规电子防护元件标准。
总结：SMAJ36CA 以其 400 W（10/1000 μs）能量吸收能力、双向保护特性与紧凑 SMA 封装，为中低电压系统提供经济且可靠的瞬态过压保护方案。选择与布局得当时，可显著提高系统对雷击、浪涌和静电的耐受能力。
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