WMSIC Electronic Components

TECH PUBLIC TPRCLAMP3374N

ModelTPRCLAMP3374N
PackageDFN3020-10
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+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
TECH PUBLIC TPRCLAMP3374N
Type
TECH PUBLIC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TECH PUBLIC
Electronic Component
TPRCLAMP3374N
Electronic Component
1
Package
DFN3020-10
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.05g
Electronic Component
1
Cj- Capacitor
5pF;2.5pF
Electronic Component
BM0230043495
Voltage
25V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
500nA
Electronic Component
Electronic Component
Electronic Component
3000

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

TPRCLAMP3374N 产品概述

TPRCLAMP3374N 是 TECH PUBLIC(台舟电子)推出的一款面向 3.3V 信号线的瞬态电压抑制(ESD)保护器件,专为高速接口与敏感逻辑电路提供可靠的静电和脉冲浪涌防护。器件在小巧的 DFN3020-10 封装中集成,兼顾了 PCB 面积节约与良好的电气/热性能,适合移动终端、通信设备、工业控制与消费电子等场景。

一、关键参数与性能亮点

  • 钳位电压(Vc):25V(典型),在高能量脉冲下保持有效钳位,保护下游器件免受过压损伤。
  • 反向截止电压(Vrwm):3.3V,适配 3.3V 工作电压的信号及电源线。
  • 峰值脉冲功率(Ppp):1 kW(8/20 μs 波形),用于单次高能量脉冲的规格。
  • 峰值脉冲电流(Ipp):40A(8/20 μs),与 Ppp、Vc 一致表明能够承受大电流冲击。
  • 反向漏电流(Ir):500 nA(在 Vrwm 条件下),对低功耗与精密模拟线路影响小。
  • 结电容(Cj):提供有 5 pF 与 2.5 pF 两类典型值(视型号或测量条件而定),低电容设计有利于保持信号完整性。
  • 防护等级:满足 IEC 61000-4-2(ESD)与 IEC 61000-4-4(电快速脉冲 EFT)测试要求。

二、应用场景

  • 3.3V 数字接口(MCU/FPGA I/O):直接保护开漏或推挽型端口。
  • 通信与数据接口(如 UART、I2C、SPI、以太网 PHY 辅助线等):低电容版本对高速差分/单端信号影响更小。
  • USB、显示接口和相机/传感器数据线(需根据带宽选择适当电容规格)。
  • 工业与户外设备接口,需承受静电或感应浪涌的环境。

三、封装与布局建议

  • 封装:DFN3020-10,体积小、可焊性好,便于自动贴装。
  • 布局要点:将 TPRCLAMP3374N 尽量靠近被保护的连接器或接口放置,保持保护器件到接地(GND)回路的路径最短、阻抗最小;避免在信号与保护器件之间布置长走线或裸露环路;为降低接地电感,建议在保护器的地端使用多点过孔(vias)直接连到底层或平面地。
  • 热管理:器件的能量承受基于单次脉冲(8/20 μs)规范,若需频繁承受高能脉冲,应在系统级进行能量分担或升级保护策略。

四、选择与使用注意事项

  • 确认单向/双向型号:对直流供电线(单向)与交流/差分信号(可能需双向)选择合适版本;TPRCLAMP3374N 以 3.3V 工况为目标,使用前核实极性特性。
  • 电容影响:对于高速接口(尤其数百 MHz 以上或差分高速链路),优先选择低结电容(如 2.5 pF 级)以减少信号失真与时延误差。
  • 额定功率与重复脉冲:Ppp=1 kW 为单次脉冲能力指标,若系统存在多次高能脉冲风险,应做系统级防护(如串联阻抗、吸收网络或多级 TVS 设计)。
  • 漏电流与静态性能:Ir=500 nA 适合大多数低功耗应用,但在超高精度模数电路中仍需评估静态偏置影响。

五、典型电路接法(概念)

将 TPRCLAMP3374N 的保护端直接连至被保护信号线,另一端接至系统地(GND),在连接器一侧靠近信号引入点安放。对多通道应用,按通道并联布置;若需对供电线进行保护,可考虑与熔断器或限流元件配合使用以提升重复承受能力。

总结:TPRCLAMP3374N 以其适配 3.3V 工作电压、低结电容、高脉冲承受能力与符合 IEC 标准的防护等级,适合在多种对信号完整性和可靠性都有较高要求的电子系统中作为首选的瞬态抑制元件。选择时请结合接口速率、是否需要双向保护以及系统能量管理策略做综合评估。

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