WMSIC Electronic Components

GOODWORK CDSOT23-SM712 CDSOT23

ModelCDSOT23-SM712
PackageSOT-23
BrandGOODWORK
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

19 specifications

Core information

Product name
GOODWORK CDSOT23-SM712
Type
GOODWORK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GOODWORK
Electronic Component
CDSOT23-SM712
Electronic Component
1
Package
SOT-23
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.034g
Electronic Component
1
Cj- Capacitor
75pF
Electronic Component
BM0230812402
Operating Temperature
55℃~+125℃
Voltage
25V;15V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
13.3V

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

CDSOT23-SM712 产品概述

CDSOT23-SM712 是 GOODWORK(固得沃克)推出的一款 SOT-23 小外形瞬态抑制二极管(TVS),用于对敏感电子接口提供高效的瞬态过压保护。该器件设计用于抵御静电放电 (ESD)、电快速瞬变 (EFT) 与浪涌脉冲 (Surge),在汽车电子、工业控制、通信与消费电子等对可靠性要求较高的场合,能提供紧凑、低成本且性能稳定的保护解决方案。

一、主要性能亮点

  • 反向工作电压 (Vrwm):7V / 12V(两种常用标称值,适配不同工作电压的系统)
  • 钳位电压 (Vclamp):25V(对应某一型号);15V(对应另一型号,适配不同抑制级别)
  • 峰值脉冲电流 (Ipp):7A(单次脉冲峰值能力)
  • 峰值脉冲功率 (Ppp):150W(10/1000µs 或厂方定义脉冲条件下的峰值吸收能力,请参考具体数据手册)
  • 击穿电压:13.3V(典型值,表征反向导通起始电压)
  • 反向漏电流 (Ir):≤500nA(在 Vrwm 下的泄漏电流,低泄漏适合电池与低功耗应用)
  • 结电容 (Cj):约75pF(对高速信号线有一定影响,选型时需考虑带宽要求)
  • 工作温度范围:-55℃ ~ +125℃
  • 防护等级:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)与 IEC 61000-4-5(Surge)标准要求
  • 封装:SOT-23,小体积便于贴片安装与自动化生产

二、典型应用场景

  • USB、RS-232、RS-485、CAN 总线等接口端口的 ESD 与浪涌保护
  • 工业控制器输入/输出端、传感器接口与继电器驱动线路的瞬态抑制
  • 消费类电子产品的外部接口(充电口、音视频接口)保护
  • 汽车电子低压系统(非动力直接相关模块)对瞬态干扰的抑制

三、选型与使用建议

  • 根据系统工作电压选择 Vrwm:7V 型适用于 5V 或更低电压系统;12V 型适用于 12V 工况。保证正常工作时器件处于反向截止区以维持低漏电。
  • 考虑结电容对信号完整性的影响:Cj ≈ 75pF 对高速差分信号(如 USB3、PCIe)可能不适合,但对 USB 2.0、UART、CAN 等多数慢速/中速信号线可接受。
  • 钳位电压与下游元件耐压匹配:钳位值决定被保护节点在大冲击下的最大电压,务必确保该电压低于被保护器件的最高耐压。
  • 脉冲功率与电流能力:150W / 7A 的峰值能力适用于常见的 ESD 与短时浪涌事件,但对长期高能量冲击或多次重复大脉冲需评估热击穿与寿命。

四、布局与焊接注意事项

  • 尽可能将 TVS 器件放置在被保护端口与 PCB 接地之间的最短路径处,以减小寄生电感和回路面积,提高抑制效率。
  • 保护地应直接与系统接地平面相连,若为多层板优先使用靠近器件的地过孔(via)短接至主地平面。
  • SOT-23 封装支持常规回流焊生产,注意焊接温度曲线符合无铅工艺要求以保证可靠性。

五、可靠性与合规

CDSOT23-SM712 满足 IEC 61000-4-2、IEC 61000-4-4、IEC 61000-4-5 等抗扰度标准,器件在 -55℃ 至 +125℃ 的宽温范围内能够保持稳定性能。GOODWORK 品牌提供一致性良好的制造与质量控制,适合批量量产与长期供应。

总结:CDSOT23-SM712 在紧凑的 SOT-23 体积内提供较强的瞬态能量吸收能力与低漏电特性,是对常见接口进行过压和静电保护的实用选择。选型时请结合工作电压、信号速率、钳位容忍度及脉冲能量要求,必要时参照厂方完整 datasheet 进行详细验证。

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