WMSIC Electronic Components

DOWO SD12C

ModelSD12C
PackageSOD-323
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+

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Technical data

Product details

19 specifications

Core information

Product name
DOWO SD12C
Type
DOWO
Minimum package
3000

Technical parameters

Electronic Component
DOWO
Electronic Component
SD12C
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
15pF
Electronic Component
BM0264801977
Operating Temperature
55℃~+125℃
Voltage
20V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
500nA

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

DOWO SD12C 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心类型

SD12C是DOWO(东沃)推出的双向瞬态抑制二极管(TVS),核心功能为静电放电(ESD)防护及瞬态过压抑制,可快速响应电路中的尖峰脉冲(如静电、浪涌),保护后端敏感电子元器件(如MCU、传感器、射频模块等)免受损坏。产品为单路防护器件,适配多种电子设备的信号/电源端口防护需求,兼顾小型化与高防护性。

二、核心电参数详解

SD12C的关键电参数经过严格校准,平衡了防护能力与电路兼容性:

  1. 反向截止电压(VRWM):12V
    正常工作状态下,器件反向截止,不干扰电路信号传输,适配12V以下电源/信号系统;
  2. 击穿电压:13V(典型值)
    当电路电压超过此阈值时,器件快速导通(响应时间<1ns),启动过压防护;
  3. 钳位电压(Vc):20V
    瞬态过压时,将端口电压钳位至20V以内,有效保护后端器件(如MCU的IO口耐压通常<3.3V/5V);
  4. 峰值脉冲电流(Ipp):18A
    可承受最大18A的瞬态脉冲电流,覆盖常见静电(HBM模型±8kV)、浪涌(8/20μs波形)场景;
  5. 峰值脉冲功率(Ppp):400W
    对应标准浪涌波形的最大脉冲功率,满足多数工业/消费电子的防护等级要求;
  6. 结电容(Cj):15pF
    中低结电容设计,适配USB、UART、以太网等中低频信号链路,避免信号失真;
  7. 反向漏电流(Ir):500nA
    正常工作时漏电流极小,不额外增加电路功耗,适合电池供电设备(如智能穿戴)。

三、封装与环境适应性

  1. 封装类型:SOD-323
    超小型表面贴装封装,尺寸仅1.6×0.8mm,适配高密度电路板(如手机主板、小型传感器模块),支持自动化贴装;
  2. 工作温度范围:-55℃~+125℃
    宽温设计,覆盖工业级(-40℃+85℃)及部分车载场景(-40℃+125℃),低温下仍保持稳定防护性能,无性能衰减。

四、防护性能与标准认证

SD12C通过IEC 61000-4-2(ESD) 及 IEC 61000-4-4(EFT) 国际标准认证,具体防护能力:

  • 静电放电(ESD):接触放电±8kV、空气放电±15kV(符合人体模型HBM);
  • 电快速瞬变脉冲群(EFT):抑制2kV/5kHz的脉冲群干扰,避免电路误触发或损坏。

五、典型应用场景

SD12C因体积小、防护能力强,广泛应用于以下领域:

  1. 消费电子:手机、平板、智能手表的USB接口、音频接口、充电端口防护;
  2. 工业控制:PLC输入输出端口、温度/压力传感器接口、工业相机信号端口防护;
  3. 通信设备:路由器、交换机的以太网端口、射频模块(如WiFi/Bluetooth)接口防护;
  4. 车载电子:车载中控、ADAS辅助系统的低电压端口(如12V电源、CAN总线)防护。

六、品牌与可靠性保障

DOWO(东沃)作为专业电子元器件厂商,SD12C采用高可靠性芯片工艺,生产过程经过全流程质量管控(如AOI检测、老化测试),产品一致性好;同时提供长期技术支持,满足客户批量应用的稳定性需求,降低售后风险。

SD12C以“小体积+强防护+宽温适配”为核心优势,是消费电子、工业控制等领域的高性价比ESD/TVS防护器件。

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