WMSIC Electronic Components

BOURNS CDSOD323-T03

ModelCDSOD323-T03
PackageSOD-323
BrandBOURNS
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

20 specifications

Core information

Product name
BOURNS CDSOD323-T03
Type
BOURNS
Unit
Electronic Component
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
CDSOD323-T03
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.047g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
3pF
Electronic Component
BM0264528772
Operating Temperature
55℃~+150℃
Voltage
19V

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

BOURNS CDSOD323-T03 单向TVS二极管产品概述

BOURNS CDSOD323-T03是一款针对低电压电路设计的单向瞬态电压抑制(TVS)二极管,采用超小型SOD-323表面贴装封装,在紧凑体积下平衡了低电容与高脉冲防护能力,可有效抵御静电放电(ESD)、电快速瞬变脉冲群(EFT)及浪涌等瞬态干扰,广泛适用于工业、消费电子及物联网(IoT)领域的敏感电路防护。

一、核心电气性能解析

作为单向TVS器件,CDSOD323-T03的参数针对3.3V系统优化,关键性能如下:

1. 电压钳位与工作阈值

  • 反向截止电压(Vrwm):3.3V,与典型3.3V供电电路匹配,正常工作时器件截止,不影响电路功能;
  • 击穿电压(Vbr):4V(典型值),略高于Vrwm,确保瞬态干扰前保持低泄漏;
  • 钳位电压(Vc):19V(典型值),遭遇8/20μs浪涌时,将电压钳位在19V以内,保护后级MCU、传感器等器件。

2. 脉冲防护能力

  • 峰值脉冲电流(Ipp):20A(@8/20μs波形),可承受高强度浪涌冲击;
  • 峰值脉冲功率(Ppp):350W(@8/20μs波形),满足多数工业及消费电子场景的浪涌能量耐受需求。

3. 低泄漏与低电容特性

  • 反向漏电流(Ir):5μA(最大值),低泄漏不影响电路正常工作电流;
  • 结电容(Cj):3pF(典型值),低电容避免高速信号衰减,适配USB 2.0、UART等数据接口防护。

二、封装与环境适应性

1. 超小型封装设计

采用SOD-323表面贴装封装,尺寸紧凑(约1.6mm×0.8mm×0.6mm),适合高密度PCB布局,节省电路板空间,满足小型化设备设计要求。

2. 宽温工作范围

工作温度覆盖-55℃至+150℃,适配工业级环境需求,可稳定应用于户外设备、汽车电子(部分场景)及严苛工业场景。

三、符合国际防护标准

CDSOD323-T03通过多项EMC防护标准测试,可靠性有保障:

  • IEC 61000-4-2:静电放电防护(接触放电±8kV、空气放电±15kV典型耐受);
  • IEC 61000-4-4:电快速瞬变脉冲群防护(典型耐受2kV/5kHz);
  • IEC 61000-4-5:浪涌防护(典型耐受1.2/50μs&8/20μs混合波形2kV)。

四、典型应用场景

该器件特性适配以下场景:

  1. 3.3V IoT设备:智能传感器、Wi-Fi/Bluetooth模块的接口与电源防护;
  2. 工业控制电路:PLC、传感器节点的抗干扰防护(宽温适配工业环境);
  3. 消费电子接口:智能穿戴、小型家电的USB、音频接口ESD防护;
  4. 高速数据总线:UART、SPI等低速率总线的瞬态干扰抑制(低电容不影响信号)。

五、产品价值总结

BOURNS CDSOD323-T03在SOD-323小封装下,实现低电容(3pF)、高防护(20A脉冲电流)、宽温(-55~150℃) 综合优势,是3.3V系统敏感电路防护的高性价比选择,可提升设备EMC可靠性与使用寿命。

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