WMSIC Electronic Components

DOWO SM8S13A

ModelSM8S13A
PackageDO-218AB
BrandDOWO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO SM8S13A
Type
DOWO
Minimum package
750 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
SM8S13A
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
BM0264368312
Operating Temperature
55℃~+175℃
Voltage
21.5V
Current(Ir)
10uA
Voltage(VBR)
14.4V
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.

SM8S13A 产品概述

一、产品简介

SM8S13A 是东沃(DOWO)推出的一款高能脉冲瞬态电压抑制器(TVS),为单向(极性:单向)保护器件,专为抑制瞬态过电压、吸收浪涌能量而设计。器件通过 AEC-Q101 车规可靠性认证,适用于汽车电子与工业环境中对抗负载突波、瞬态尖峰和雷击浪涌等严苛电磁脉冲事件的保护需求。封装采用 DO-218AB,具备良好的功耗处理能力与热性能,适合直接并联在电源总线上或保护关键器件的输入端。

二、主要性能参数

  • 类型:TVS(瞬态电压抑制器),单向
  • 反向工作电压 Vrwm:13 V
  • 击穿电压 VBR:14.4 V(典型/额定值)
  • 钳位电压(Ipp 条件下):21.5 V
  • 峰值脉冲电流 Ipp(10/1000 µs):307 A
  • 峰值脉冲功率 Ppp(10/1000 µs):6.6 kW
  • 反向电流 Ir:10 µA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ ~ +175 ℃
  • 认证:AEC-Q101(车规级)
  • 品牌 / 产地:DOWO(东沃)
  • 封装:DO-218AB

以上指标在典型测试条件下得到验证;具体电气曲线与环境依赖参数应参考器件详细数据手册。

三、关键特性与优势

  • 高能量吸收:基于 10/1000 µs 波形下 6.6 kW 峰值功率与 307 A 峰值电流,能够在短时间内吸收大幅度浪涌能量,适合应对汽车负载突波与工业雷击类事件。
  • 低钳位电压:在大脉冲电流下钳位电压为 21.5 V,有效限制被保护电路暴露的过压幅度,降低后级元器件的应力。
  • 低漏电流:反向漏电仅 10 µA,有利于降低休眠或静态功耗,适用于对能耗敏感的车规与便携系统。
  • 宽工作温度:-55 ℃ 至 +175 ℃ 的工作温度范围满足车规与恶劣环境应用需求。
  • 车规认证:通过 AEC-Q101 认证,可靠性和寿命特性符合汽车应用级别要求。

四、典型应用场景

  • 汽车电子:车载电源总线保护、ECU 输入保护、车载充电器、车载多媒体与传感器接口的浪涌防护(包括负载突波、反向连接、感应尖峰等)。
  • 工业电源:电源模块输入保护、逆变器控制板、马达驱动器的瞬态抑制。
  • 通信与基站设备:电源线和接口的雷击/浪涌保护。
  • 电池与充电系统:电池管理系统(BMS)与充电回路的瞬态过压保护。

五、设计与安装建议

  • 布局:尽量将 TVS 器件靠近被保护端口或电源入口放置,避免长导线或回路,减小感抗和寄生电感,以提高钳位效率。
  • 散热:DO-218AB 封装具有较好的热散性能,但在长时间或重复浪涌条件下需关注周围铜箔面积与散热路径,必要时在 PCB 下方使用散热铜箔或热孔。
  • 串联/并联:若需更高能量吸收,可考虑并联多个器件或与熔断器配合设计以实现分级保护,但需注意并联一致性与共享电流的影响。
  • 电路保护策略:建议与限流器、熔丝、PTC 或抑制电阻等元件配合使用,以应对持续过压或大能量事件,保护 TVS 自身与被保护电路。

六、可靠性与质量保证

SM8S13A 已通过 AEC-Q101 车规级测试,具有抗振动、抗热冲击与长寿命特性,适合车载与工业长期服役。常见可靠性关注点包括反复浪涌寿命(脉冲次数与幅值)、热循环与钎焊工艺对封装的影响,建议在量产前进行结合实际应用环境的加速寿命验证。

七、订购信息与标识

产品型号:SM8S13A 品牌:DOWO(东沃) 封装:DO-218AB 在订购与设计过程中,请确认所需的包装、批次和生产证书(如需要 PPAP / 测试报告),并与供应商核实最新的材料与封装规范。

备注:本文基于器件关键参数编写,具体电气特性曲线、典型工作波形、封装尺寸与引脚配置请参考东沃提供的正式数据手册,以便于完成精确设计与认证。

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