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DOWO SM8S36A
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- DOWO SM8S36A
- Type
- DOWO
- Minimum package
- 750 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- DOWO
- Electronic Component
- SM8S36A
- Electronic Component
- 1
- Package
- DO-218AB
- Electronic Component
- Electronic Component
- Type
- TVS
- Electronic Component
- ESD and Surge Protection (TVS / ESD)
- Electronic Component
- 3.7g
- Electronic Component
- 1
- Electronic Component
- BM0257638250
- Operating Temperature
- 55℃~+175℃
- Voltage
- 58.1V
- Current(Ir)
- 10uA
- 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.
SM8S36A 产品概述
一、产品简介
SM8S36A 是一款单向瞬态电压抑制器（TVS），由 DOWO(东沃) 提供，采用 DO-218AB 大功率封装。器件主用于吸收和钳位瞬态过电压，保护对地或对电源线上敏感的半导体元件与电路，尤其适合汽车、工业电源与通信设备的雷击、浪涌和静电放电（ESD）防护场景。
二、主要电气参数
- 极性：单向（Unidirectional）
- 反向工作电压 Vrwm：36 V
- 击穿电压 Vbr：40 V
- 钳位电压 Vc：58.1 V（在规定脉冲条件下）
- 峰值脉冲电流 Ipp：114 A
- 峰值脉冲功率 Ppp：6.6 kW（10/1000 μs 波形）
- 反向漏电流 Ir：10 μA（典型值）
- 工作温度范围：-55 ℃ ～ +175 ℃
三、封装与热性能
SM8S36A 使用 DO-218AB 封装，具备较大的热容量和良好的能量吸收能力，便于在通过孔（THT）或较为坚固的散热布局下焊接。该封装适合承受高能量脉冲并能将热量有效向 PCB 及散热体传导，从而提高器件在连续或反复浪涌条件下的可靠性。
四、典型应用
- 汽车电子电源浪涌保护（负载开关、电控单元）
- 工业电源与驱动系统的输入防护
- 通信设备、基站电源与接口保护
- 电源模块、逆变器及充电设备的过压抑制
五、设计与选型要点
- 选型时须确认 Vrwm（36 V）与被保护线路的最大工作电压匹配，保持足够余量以避免在正常工作时触发钳位。
- 注意峰值脉冲能量规格（6.6 kW@10/1000 μs 与 114 A），用于评估在雷击或大型浪涌时的安全裕度。
- 单向器件适用于有固定极性的直流系统；交流双向保护应采用双向 TVS。
- 管脚与 PCB 布局应尽量缩短导通路径并提供足够的散热铜箔或散热器以降低结温升高。
六、可靠性与使用注意
- 推荐在允许的工作温度范围内使用；长期高温会影响寿命与击穿特性。
- 焊接时遵循制造商的温度曲线，回流或波峰焊时避免过长时间的高温暴露。
- 对重复浪涌或异常事件后的器件应进行功能确认，严重损伤时应更换以保证系统安全。
SM8S36A 以其高峰值吸收能力、较低钳位电压与宽温度范围，为需要大能量浪涌防护的电源与电子系统提供可靠的瞬态抑制解决方案。欲获取详细电气曲线、典型浪涌能力测试数据及封装图纸，请参考厂商数据手册或联系供应商咨询。
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