WMSIC Electronic Components

SEMTECH RCLAMP2402B.TCT RCLAMP2402B

ModelRCLAMP2402B.TCT
PackageSC-75
BrandSEMTECH
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+

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Technical data

Product details

20 specifications

Core information

Product name
SEMTECH RCLAMP2402B.TCT
Type
SEMTECH
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
SEMTECH
Electronic Component
RCLAMP2402B.TCT
Electronic Component
1
Package
SC-75
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.001g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1.5pF
Electronic Component
BM0264466722
Voltage
55V
Electronic Component
IEC 61000-4-4

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

RCLAMP2402B.TCT 产品概述

一、简介

RCLAMP2402B.TCT 是 SEMTECH 提供的一款双路单向瞬态电压抑制器(TVS 二极管),封装为小型 SC-75(SOT-23 相似尺寸),专为对瞬态过压、浪涌及脉冲群(EFT)干扰的保护而设计。器件在工作反向电压(Vrwm)24V 下保持低漏电流,并在瞬态时将电压限制在约 55V,适合空间受限且需高可靠性保护的工业与通信场景。

二、主要特点

  • 单向极性,提供确定方向的钳位保护,避免反向导通带来的误动作。
  • 双路通道设计,可同时保护两条信号/电源线,节省 PCB 空间与成本。
  • 反向截止电流 Ir ≤ 1 µA(在 Vrwm 下),低待机损耗,适合对电流敏感的系统。
  • 低结电容 Cj ≈ 1.5 pF,最小化对高速信号的加载,适用于对带宽有要求的接口。
  • 钳位电压约 55V,对短时高能脉冲具有良好抑制能力。
  • 满足 IEC 61000-4-4(EFT 脉冲群)防护要求,提升系统抗扰度。
  • 小型 SC-75 封装,便于高密度布板与自动贴片制造。

三、典型电气参数(摘要)

  • 极性:单向
  • 反向工作电压 Vrwm:24 V
  • 钳位电压 Vc(瞬态):≈ 55 V
  • 反向电流 Ir:1 µA(典型/最大值以数据手册为准)
  • 通道数:双路
  • 结电容 Cj:1.5 pF(典型)
  • 类型:TVS 二极管(瞬态抑制)
  • 防护等级:符合 IEC 61000-4-4(EFT)

说明:上述为主要参数摘要,详细的击穿电压范围、钳位电流下的 Vc 曲线、功率吸收能力及热相关限制应以厂商完整数据手册为准。

四、封装与机械特性

封装为 SC-75,尺寸小巧,适合自动化贴装。封装利于降低寄生电感并能靠近被保护引脚布局,以获得最佳抑制效果。推荐在 PCB 上为器件附近提供足够的散热铜箔面积以提升脉冲吸收能力。

五、典型应用场景

  • 工业控制系统中的 24V 供电总线瞬态保护
  • 通信与接口端口的浪涌、EFT 抑制(例如传感器线、低速信号线)
  • 嵌入式设备与物联网终端的电源与信号保护
  • 车辆电子(非动力总成高压系统需核对规格)与楼宇自控系统的瞬态防护

六、PCB 布局与安装建议

  • 将 TVS 器件尽量靠近需保护的接口或电源输入端放置,缩短走线长度以降低感性耦合。
  • 保护器件的地端需与系统地(或车体地)短且低阻连接,优先使用宽铜箔与多通过孔(via)减少回流阻抗。
  • 对高速信号线保护时,考虑串联阻抗或共模布局以兼顾信号完整性。
  • 建议在贴片焊接前检查回流温度曲线,避免超出封装许可温度。

七、可靠性与合规

RCLAMP2402B.TCT 针对 IEC 61000-4-4 提供了针对性保护,适合需要抵抗电快速瞬变脉冲群的应用场景。为保证长期可靠性,选型与布局时应同时考虑最大能量吸收能力与工作环境温度。

八、选型提示与优势

  • 若系统工作电压接近 24V 并需在短时浪涌下将电压限制在安全范围内,RCLAMP2402B.TCT 是紧凑且低电容的合适选择。
  • 对于高带宽或敏感模拟/数字信号线,1.5 pF 的低结电容可最大限度降低对信号的影响。
  • 双路设计在空间与成本上优于两颗独立单通道 TVS 的解决方案。

注意:最终设计与参数验证请参考 SEMTECH 官方数据手册与实际浪涌试验结果,以确保满足特定应用的安全与可靠性要求。

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