WMSIC Electronic Components

ElecSuper ESD3V3D3

ModelESD3V3D3
PackageSOD-323
BrandElec Super
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Elec Super ESD3V3D3
Type
ELECSUPER
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
ESD3V3D3
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.026g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
200pF
Electronic Component
BM0228788628
Operating Temperature
40℃~+125℃
Voltage
15V
Electronic Component
IEC 61000-4-2

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

ESD3V3D3 产品概述

ESD3V3D3(品牌:ElecSuper / 静芯微)是一款单路、单向的瞬态电压抑制器,专为3.3V工作电压系统的静电放电(ESD)保护而设计。器件采用SOD-323小封装,具备高能脉冲吸收能力和宽工作温度范围,适用于对体积、成本和防护性能有要求的便携和嵌入式系统。

一、产品简介

ESD3V3D3 为单向 ESD 防护二极管,反向截止电压 Vrwm = 3.3V,适配典型 3.3V 信号和电源轨。器件在遭受静电冲击或脉冲干扰时能迅速导通,将能量导入地或电源侧,保护后端电路免受高压瞬变损害。SOD-323 封装利于表面贴装加工与体积受限的应用。

二、主要参数与性能亮点

  • 极性:单向(unidirectional),适用于标称 3.3V 的信号/电源保护
  • 反向截止电压 Vrwm:3.3 V(典型)
  • 击穿电压 Vbr:4.5 V(典型)
  • 钳位电压(Clamping):15 V(在指定脉冲条件下)
  • 峰值脉冲电流 Ipp:25 A
  • 峰值脉冲功率 Ppp:450 W(8/20 µs 波形)
  • 反向漏电流 Ir:1 µA(在 Vrwm 条件下)
  • 结电容 Cj:200 pF(典型)
  • 通道数:单路
  • 工作温度:-40 ℃ ~ +125 ℃
  • 防护等级:符合 IEC 61000-4-2 静电放电防护要求
  • 封装:SOD-323(小尺寸、适合自动贴装)

性能亮点:该器件在 8/20 µs 波形下可承受高达 450 W 的瞬态功率,能快速钳位并吸收高达 25 A 的瞬变电流,适合对抗瞬时静电放电或脉冲干扰。

三、典型应用场景

  • 低速或中速数字信号线的ESD保护(GPIO、UART、I2C 等)
  • 3.3V 电源轨的浪涌/ESD保护(作为本地保护部件)
  • 消费电子产品:智能硬件、手持设备、穿戴设备
  • 工业与通讯终端的接口保护(非高频高速差分信号)
  • 各类接口板、外壳连线口(键盘、按键、外露接口等)

注意:由于结电容较大(约 200 pF),该器件不推荐用于对信号完整性有严格要求的高速接口(如 USB 2.0/3.x、HDMI、MIPI 高速通道),更适合电源线或低速信号保护。

四、使用与布板建议

  • 放置位置:将器件尽可能靠近受保护的接口/连接器,减小到源点的导线长度以提高保护效率。
  • 接地处理:器件的地端应短而粗地连接到共地平面或接地垫,必要时使用多过孔(vias)降低回流阻抗。
  • 串联阻抗:对付较大能量事件或改善钳位性能,可在保护器件与敏感器件之间适当增加小阻值串联电阻,但需兼顾正常信号需求。
  • 温度与焊接:SOD-323 适用于回流焊工艺,注意遵循厂商推荐的回流温度曲线以避免封装和性能变化。
  • 并联/串联应用:单路器件用于单线保护,若需多通路保护可并联多只(需评估分流与容性影响),或选择多通道封装的器件替代。

五、选型与注意事项

  • 信号带宽考量:200 pF 的结电容会对高频信号造成显著影响,选择时应优先评估信号频率和接受的容性负担。
  • 钳位和剩余电压:钳位电压 15 V 为器件在指定冲击条件下的典型表现,实际电路中应结合系统容忍度决定是否需要额外的限制或保护措施。
  • 漏电流与功耗:反向漏电流 1 µA 对大多数 3.3 V 电路影响较小,但在超低功耗应用中需综合评估功耗预算。
  • 环境与可靠性:器件工作温度范围宽(-40 ~ +125 ℃),适用于工业级环境;如需车规级认证(AEC 等),请向供应商确认相关资质。

六、包装与订购信息

  • 品牌:ElecSuper(静芯微)
  • 型号:ESD3V3D3
  • 封装:SOD-323(表贴)
  • 通道数:单路
  • 描述:单向 ESD 抑制二极管,3.3V 反向站立电压,450 W @8/20µs 峰值功率

总结:ESD3V3D3 以小封装、高脉冲能量吸收能力和适配 3.3V 系统的电压特性,适合用于电源轨与低速信号线的有效静电防护。设计时需综合考虑其较高的结电容对信号完整性的影响,并采用合理的 PCB 布局与接地方案以发挥最佳保护效果。若需批量采购或获取详细数据手册(包括典型特性曲线和封装尺寸),建议联系 ElecSuper(静芯微)或授权分销商获取官方资料。

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