WMSIC Electronic Components

DOWO UCLAMP0571P.TNT UCLAMP0571P

ModelUCLAMP0571P.TNT
PackageDFN1610-2
BrandDOWO
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

19 specifications

Core information

Product name
DOWO UCLAMP0571P.TNT
Type
DOWO
Minimum package
8000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
UCLAMP0571P.TNT
Electronic Component
1
Package
DFN1610-2
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.012g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
600pF
Electronic Component
BM0226170100
Operating Temperature
55℃~+125℃
Voltage
11V
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.

UCLAMP0571P.TNT 产品概述

UCLAMP0571P.TNT 是东沃(DOWO)推出的一款单路、单向瞬态电压抑制器(ESD/浪涌保护器),采用小型 DFN1610-2 封装,专为对 5V 等压等级的信号与电源线提供高可靠性防护而设计。器件在宽温区间内稳定工作,并符合 IEC 61000 系列抗扰度标准,适用于消费电子、通信接口、工业控制等对静电放电和脉冲干扰有防护需求的场景。

一、主要特性(概要)

  • 钳位电压(Vc,典型):11 V(在额定脉冲测试条件下)
  • 反向截止电压 Vrwm:5 V(适配 5V 体系)
  • 击穿电压 Vbr:5.2 V
  • 峰值脉冲电流 Ipp:170 A
  • 峰值脉冲功率 Ppp:1.8 kW(8/20 μs 浪涌波形)
  • 反向漏电流 Ir:1 μA(在 Vrwm 下)
  • 结电容 Cj:600 pF(影响高速信号特性)
  • 通道数:单路;极性:单向
  • 工作温度范围:-55 ℃ 至 +125 ℃
  • 防护等级:满足 IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌)
  • 封装:DFN1610-2(小型贴片)
  • 类型:ESD/浪涌抑制器
  • 品牌:DOWO(东沃)
  • 典型应用:5V 电源线路、I/O 接口保护、外设接口(以低速/低中速信号为主)

二、功能与优势

  • 小封装,节省 PCB 面积:DFN1610-2 适合空间受限的便携设备和密集板布局。
  • 强能量吸收能力:支持 8/20 μs 浪涌 1.8 kW,配合 170 A 峰值脉冲电流,可有效吸收常见的冲击性干扰。
  • 低漏电流:在 Vrwm 条件下 Ir 仅 1 μA,有利于低功耗系统和电池供电设备。
  • 对 5V 系统友好:5 V 反向截止电压及 11 V 钳位值可在不损害被保护器件的前提下,对超压脉冲进行钳位。
  • 符合 IEC 抗扰度标准:适配 ESD、EFT、浪涌多类电磁环境测试要求,提高系统可靠性。

三、典型应用场景

  • USB 2.0/串口/GPIO 等 5V 或低速信号接口的瞬态保护(注意结电容对高速信号的影响,见下文注意事项)。
  • 电源输入保护(5 V 供电总线的浪涌和静电保护)。
  • 工业控制器、传感器接口及其他需要单路过压保护的外设接口。
  • 消费类电子产品的外部连接口防护(如老式音视频接口、低速数据链路)。

四、使用建议与注意事项

  • 结电容影响:Cj = 600 pF 相对较大,会对高速差分信号或高频接口(例如 USB3.0、HDMI、PCIe 等)造成明显信号完整性影响,建议仅用于低速或容许较高负载电容的接口。
  • 布局指导:将器件尽量靠近被保护端口的接入处布置,以减小未保护走线和寄生电感。器件地垫应与主地平面通过短、直接的连接,减小回路电感。
  • 钳位电压说明:11 V 为典型钳位值,通常按制造商测试规范(如在指定 Ipp 条件)测量。实际系统中钳位效果会受寄生阻抗与接地质量影响。
  • 功率与脉冲匹配:1.8 kW@8/20 μs 为冲击能量指标,器件适合处理瞬时脉冲而非连续过载。若系统可能受到更长时程或更高能量的浪涌,需采用级联防护或增配更大能量吸收元件。
  • 单向极性使用:作为单向 TVS,接法为被保护线接器件阳极/阴极对应关系,负极一般接地。请按数据手册提供的引脚定义与极性说明布局与焊接。

五、机械与采购信息

  • 封装:DFN1610-2 小型贴片,利于自动化贴片与回流焊工艺。
  • 型号:UCLAMP0571P.TNT
  • 品牌:DOWO(东沃)
  • 通道:单路,单向极性
  • 采购时请注意与供应商确认最新的封装图纸、回流温度曲线与可靠性说明,以保证装配兼容性与长期可靠性。

六、可靠性与合规

UCLAMP0571P.TNT 针对 ESD(IEC 61000-4-2)、EFT(IEC 61000-4-4)和浪涌(IEC 61000-4-5)进行了规范化的设计与测试,适用于一般商业与工业环境的瞬态电磁干扰防护。建议在最终产品验证阶段,结合整机的接地与布线方案进行实测验证,以确保在目标使用环境下达成预期的保护效果。

总结:UCLAMP0571P.TNT 在小封装下提供针对 5V 级别线路的高效瞬态能量吸收能力,适用于多种需要单路防护的场合,但在高速信号线路使用时要特别注意结电容带来的影响。若需进一步的典型电气曲线、封装图或应用参考设计,可联系供应商获取详细数据手册。

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