WMSIC Electronic Components

BOURNS CDSOD323-T36SC

ModelCDSOD323-T36SC
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
BOURNS CDSOD323-T36SC
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-T36SC
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.038g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
35pF
Electronic Component
BM0209677733
Operating Temperature
55℃~+150℃
Voltage
75V

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

CDSOD323-T36SC 产品概述

一、产品简介

CDSOD323-T36SC(BOURNS)是一款单路双向瞬态电压抑制二极管(TVS),为对抗工业与消费类设备中的瞬态过电压、雷击浪涌和静电放电提供高效保护。其工作电压(反向截止电压)为36V,击穿电压约40V,能在瞬态冲击下将电压钳位至75V附近,适用于中低压总线与接口保护场合。

二、主要规格与参数

  • 类型:单路、双向 TVS
  • 反向截止电压 Vrwm:36V
  • 击穿电压 Vbr:≈40V
  • 钳位电压 Vc:75V(典型,Ipp 条件下)
  • 峰值脉冲功率 Ppp(8/20µs):400W
  • 峰值脉冲电流 Ipp(8/20µs):5A
  • 结电容 Cj:35pF(典型)
  • 反向电流 Ir:1µA(最大)
  • 工作温度:-55℃ ~ +150℃
  • 封装:SOD-323(小封装,便于表面贴装)
  • 防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)

三、关键特性

  • 快速响应:TVS 器件在纳秒级响应瞬态事件,快速夹断过电压,保护后端电路元件。
  • 低漏电:Ir 仅 1µA,适合对待机功耗敏感的系统。
  • 适中结电容:35pF 对高速信号(例如 USB、串行总线)有一定影响,需评估信号完整性要求。
  • 宽工作温度:-55℃~+150℃,满足汽车与工业级环境的温度考核。
  • 小型封装:SOD-323 节省 PCB 面积,适合空间受限的便携设备。

四、典型应用

  • 工业控制总线与传感器接口的浪涌/ESD 防护(24V/36V 系统)
  • 串行通信接口与电源线保护(RS-485、CAN 等需考虑电容影响)
  • 安防、测量设备与楼宇控制中对瞬变过电压的抑制
  • 外围 I/O 保护与电源输入端防护

五、封装与热管理建议

SOD-323 封装体积小、散热能力有限。用于承受高能量脉冲时,应:

  • 将 TVS 尽量靠近受保护端口放置,缩短引线长度,降低寄生电感。
  • 提供充足的铜箔散热面积或在底层加散热铺铜,并在必要处添加热沉或通孔以提升脉冲散热。
  • 对连续或频繁冲击环境,应评估器件能否承受多次脉冲能量。

六、可靠性与合规性

该器件符合 IEC 61000-4-2/4-4/4-5 等抗扰度标准,适合需要通过 EMC/ESD 认证的产品设计。工作温度与材料选型满足长期工业级可靠性要求,但在极端冲击条件下应进行系统级验证。

七、选型建议与注意事项

  • 确认系统的最大工作电压与浪涌幅值,Vrwm=36V 适合 24V/36V 类系统;若系统工作电压接近 36V,应留有安全余量。
  • 对高速信号线(高速 USB、差分高速总线),35pF 电容可能影响带宽,应权衡保护与信号完整性或选用低容型 TVS。
  • 若预期脉冲电流超过 5A 或需更低钳位,应考虑功率等级更高或并联/串联方案。
  • 布局时保证接地良好,减小回路面积以提升防护效果。

八、总结

CDSOD323-T36SC 是一款针对中低压应用、具有可靠工业温度范围与符合 IEC 抗扰标准的单路双向 TVS。其 400W 脉冲功率、5A 峰值电流和75V 钳位性能,结合 SOD-323 小体积封装,适合多种需要空间受限又要求抗突发瞬态的应用场景。选用时应关注结电容对信号的影响及封装散热限制,必要时进行系统级冲击和寿命验证。

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