WMSIC Electronic Components

DOWO P6SMB15CA

ModelP6SMB15CA
PackageSMB(DO-214AA)
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
DOWO P6SMB15CA
Type
DOWO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
P6SMB15CA
Electronic Component
1
Package
SMB(DO-214AA)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.19g
Electronic Component
1
Electronic Component
BM0231033190
Voltage
21.2V
Current(Ir)
1uA
Voltage(VBR)
14.25V
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

P6SMB15CA 产品概述

一、概述

P6SMB15CA 是 DOWO(东沃)出品的双向瞬态抑制二极管(TVS),采用 SMB (DO-214AA) 封装,专为吸收瞬态过压能量、保护敏感电子元件免受雷击、开关导致的浪涌和电磁干扰而设计。器件支持高达 600W 的峰值脉冲功率能力,适合工业、通信、电源和汽车等环境中的瞬态保护应用。

二、关键参数

  • 极性:双向(适用于交流或双向浪涌抑制)
  • 反向截止电压 Vrwm:15V(稳态工作电压)
  • 击穿电压 V(BR):约 14.25V(在规定测试电流下测得的典型值)
  • 钳位电压(Vclamp):21.2V(在峰值脉冲电流下)
  • 峰值脉冲电流 Ipp:28.3A(对应 Ppp 条件)
  • 峰值脉冲功率 Ppp:600W(典型脉冲能量规格,通常按 1ms 波形)
  • 反向电流 Ir:1µA(在 Vrwm 条件下的漏电流)

三、主要特性与优势

  • 高能量吸收:600W 的峰值脉冲功率保证器件能迅速钳位大电流脉冲,保护下游元件。
  • 双向保护:可直接用于交流线路、差分对或无需极性区分的布线环境,安装更灵活。
  • 低漏电流:在工作电压下保持微安级漏电,适合对静态功耗敏感的电路。
  • 紧凑封装:SMB(DO-214AA)兼具良好散热与小尺寸,便于自动贴装与批量生产。

四、典型应用场景

  • 电源输入端的浪涌保护(SMPS 前端、适配器、充电器)
  • 通信接口保护(以太网、串行接口的瞬态抑制)
  • 工业控制设备与传感器模块的过压保护
  • 汽车电子(对电磁兼容性及瞬态事件的局部保护,注意车规要求)

五、使用与电路注意事项

  • 双向器件在直流保护时会在两方向上导通,若为仅正向保护请选用单向型 TVS。
  • 钳位电压 21.2V 是在 Ipp 条件下测得的峰值,电路设计时应确保被保护器件能承受此钳位电压瞬态。
  • 若应用中存在连续高频脉冲或重复浪涌,应评估器件的平均能量承受能力并考虑串联限流或吸收元件配合使用。
  • 引脚到地的布线要尽量短、阻抗低,以确保钳位效能并降低寄生感抗带来的过压。

六、封装与安装

SMB(DO-214AA)封装适配常见 PCB 焊盘布局,支持回流焊与波峰焊工艺。建议在布局时:

  • 将 TVS 靠近需保护的器件或接口放置,缩短接地回路。
  • 使用宽铜箔作为散热与接地,必要时增加过孔至底层大面积地铜以提升热耗散能力。

七、热管理与可靠性

在高能脉冲条件下,器件温升显著,建议参考完整数据手册中的能量循环图和热阻参数。长期在接近额定脉冲能力下工作会降低寿命,设计时留有裕量并做 EMC 测试验证是必要的。

八、选型建议与替代

当系统电压接近 15V、需要低漏电且具备双向保护时,P6SMB15CA 为合适选择。若需更低钳位电压、更高脉冲电流或车规级认证,可对比其他 TVS 等级或参照供应商的同类产品数据表进行替换选型。

结语:P6SMB15CA 以其 600W 的脉冲吸收能力、双向保护特性与 SMB 经济封装,为中低电压系统提供可靠的瞬态过压防护。在实际应用中,应结合系统的最大承受电压、钳位容忍度与散热设计进行综合评估。若需完整电气特性曲线、脉冲波形条件与热参数,请参考厂商详细数据手册。

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