WMSIC Electronic Components

KUU SM712.TCT

ModelSM712.TCT
PackageSOT-23
BrandKUU
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
KUU SM712.TCT
Type
KUU
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
SM712.TCT
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
45pF
Electronic Component
BM0258756617
Operating Temperature
55℃~+150℃
Voltage
12V;26V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;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.

SM712.TCT 产品概述

一、产品简介

SM712.TCT 是 KUU 品牌的一款双路双向瞬态电压抑制器(TVS/ESD 保护器件),针对高速信号线与数据接口的静电放电与脉冲浪涌保护而设计。器件采用 SOT-23 小型封装,集成两路保护通道,适合空间受限的便携设备与工业控制终端。

二、主要电气参数

  • 极性:双向
  • 通道数:双路
  • 额定反向截止电压(Vrwm):7 V / 12 V(提供两种规格版本)
  • 击穿电压(Vbr):7.5 V(对应7V版);13.3 V(对应12V版)
  • 钳位电压(Vclamp):12 V;26 V(对应不同工作条件)
  • 峰值脉冲电流(Ipp,10/1000 μs):17 A
  • 峰值脉冲功率(Ppp,10/1000 μs):400 W
  • 反向漏电流(Ir):1 μA(7V 版)/ 20 μA(12V 版)
  • 结电容(Cj):约 45 pF(典型)
  • 工作结温:-55 ℃ 至 +150 ℃(Tj)
  • 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

  • 双向结构支持对称的正负极瞬态抑制,适合差分信号与双向数据线保护。
  • 高能量吸收能力:单脉冲 Ppp 达 400 W、Ipp 可达 17 A,能有效抑制来自人体放电或电源浪涌的能量。
  • 低结电容(45 pF 级),在高速数据链路中对信号完整性的影响较小,适用于 USB、串口、CAN/RS‑485 等接口。
  • 宽温度工作范围及工业级可靠性,适合 工业、汽车电子(非车规版需另验)与消费电子产品。

四、典型应用场景

  • USB、HDMI、LVDS、MIPI 等高速接口的端口保护。
  • 串行通讯接口:RS‑485、CAN、UART 等差分或单端数据线。
  • 工业控制、楼宇设备与终端用户接口的浪涌与静电防护。
  • PCB 边缘和接插件处作为一级或二级防护元件使用。

五、设计与布局建议

  • 将 SM712.TCT 尽量靠近被保护的插座或接插件布局,减少引线寄生电感与阻抗。
  • 对高速差分线匹配阻抗时,考虑器件 45 pF 的结电容对高频特性的影响;必要时选用两级保护或在器件前加入小阻抗以改善波形。
  • 对承受高浪涌环境的应用,配合熔断器、限流电阻或共模电感提升系统整体保护能力。
  • 布线时确保保护器件的接地回路最短、低阻,减小抑制脉冲对系统的耦合。

六、封装与可靠性

  • 封装形式:SOT-23,体积小、易于贴片生产。
  • 适用温度范围广(-55 ℃ 至 +150 ℃),适合工业级应用环境。
  • 符合 IEC ESD/EFT/浪涌相关测试标准,经过实际抗扰度验证。

七、选型与注意事项

  • 根据被保护线的工作电压选择合适的 Vrwm(7 V 或 12 V),以保证在正常工作下不触发保护而在异常瞬态下有效钳位。
  • 关注结电容对高速信号的影响,必要时进行信号完整性测试。
  • 在高能脉冲环境下,需综合考虑 PCB 走线、接地与热管理,确保器件寿命与可靠性。

总结:SM712.TCT 为一款针对数据线和接口端口的高效双路双向 TVS,兼顾小体积与大功率吸收能力,是对抗静电放电与浪涌冲击的理想选择。若需进一步电气特性曲线或典型波形图,请在设计评估阶段索取详尽数据手册与实测报告。

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