WMSIC Electronic Components

TECH PUBLIC ESD3.3V52D-C ESD3.3V52D

ModelESD3.3V52D-C
PackageSOD-523
BrandTECH PUBLIC
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
TECH PUBLIC ESD3.3V52D-C
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
ESD3.3V52D-C
Electronic Component
1
Package
SOD-523
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.023g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
110pF
Electronic Component
BM0265986120
Voltage
14V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
200nA

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

ESD3.3V52D-C 瞬态抑制二极管(TVS)产品概述

ESD3.3V52D-C是台舟电子(TECH PUBLIC)推出的单向瞬态抑制二极管(TVS),专为3.3V电压系统的静电放电(ESD)及电快速瞬变脉冲群(EFT)防护设计,具备小型化、高耐受功率、低泄漏等特点,适用于消费电子、IoT终端等场景的敏感电路保护。

一、产品定位与核心功能

该器件核心作用是快速钳位过电压:当电路中出现瞬间浪涌(如静电放电、电源尖峰)时,能在纳秒级时间内导通,将过电压钳位至安全范围,避免后端敏感元件(如MCU、传感器)被击穿损坏。作为单向TVS,仅对某一方向的过压(通常为电源正端到地)提供防护,适配单向电压线路的防护需求。

二、关键电气参数解析

1. 电压匹配特性

  • 反向截止电压(Vrwm):3.3V:与3.3V系统的正常工作电压精准匹配,器件在正常电路电压下处于截止状态,不影响电路功能;
  • 击穿电压(Vbr):5V:当电压超过正常工作范围(但未达到防护阈值)时,器件处于软击穿前状态,进一步升高电压则快速导通;
  • 钳位电压(Vc):14V:在峰值脉冲功率下,将过电压钳位至14V以内,确保后端元件的电压不超过其最大耐受值。

2. 脉冲耐受能力

  • 峰值脉冲功率(Ppp):150W@8/20μs:采用国际标准的8/20μs浪涌波形(电流波前沿8μs,半峰值20μs)测试,可承受瞬间150W的脉冲功率,满足多数消费电子及IoT设备的浪涌防护需求。

3. 低损耗特性

  • 反向漏电流(Ir):200nA:在反向截止电压下,漏电流仅200nA,几乎不影响电路的静态功耗,尤其适合低功耗设备;
  • 结电容(Cj):110pF:单路通道的结电容为110pF,适用于低速信号线路(如GPIO、UART),若用于高速信号需结合实际带宽考量。

三、封装与物理特性

采用SOD-523贴片封装,尺寸紧凑(典型值:1.6mm×0.8mm×0.6mm),适合高密度PCB设计,支持自动化贴装,可有效节省产品内部空间,适配便携设备(如智能手表、蓝牙耳机)的小型化需求。

四、可靠性与标准认证

该器件通过IEC 61000-4-2(ESD) 和 IEC 61000-4-4(EFT) 标准测试,满足国际电磁兼容(EMC)要求,可应对常见的静电放电(如人体接触放电、设备接触放电)及电快速瞬变脉冲群干扰,可靠性符合工业及消费电子领域的应用标准。

五、典型应用场景

  1. 3.3V电源线路防护:如IoT终端、智能家居设备的电源输入端口,防止电源尖峰损坏MCU、传感器等核心元件;
  2. 低速信号接口防护:如GPIO、UART、I2C等低速数字信号线路,避免静电放电导致的信号误码或元件损坏;
  3. 消费电子接口防护:如手机、平板的充电接口、耳机接口,应对日常使用中的静电干扰;
  4. 工业控制低电压线路:如小型工业控制器的3.3V信号线路,提升设备抗干扰能力。

六、选型优势总结

  1. 电压精准匹配:专为3.3V系统设计,无需额外降额设计,防护效果更直接;
  2. 高功率耐受:150W峰值脉冲功率,满足多数场景的浪涌防护需求;
  3. 小型化封装:SOD-523封装节省PCB空间,适配便携设备;
  4. 低功耗特性:200nA反向漏电流,不影响低功耗电路设计;
  5. 标准合规:符合IEC 61000-4系列标准,可靠性有保障。

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