WMSIC Electronic Components

WILLSEMI ESD5451NL-2/TR ESD5451NL

ModelESD5451NL-2/TR
PackageDFN1006-2L
BrandWILLSEMI
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
WILLSEMI ESD5451NL-2 / TR
Type
WILLSEMI
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
ESD5451NL-2/TR
Electronic Component
1
Package
DFN1006-2L
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
11pF
Electronic Component
BM0226016480
Voltage
11V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA

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

ESD5451NL-2/TR 产品概述

一、产品简介

ESD5451NL-2/TR 是 WILLSEMI(韦尔)推出的一款单路、双向瞬态抑制二极管(TVS),专为 5V 级电源和信号线的静电放电(ESD)与浪涌(Surge)保护设计。主要参数:工作反向电压 VRWM = 5V;最小击穿电压 VBR(min) = 5.2V;钳位电压 VC = 11V(Ipp=4A,8/20μs);峰值脉冲电流 Ipp = 4A(8/20μs);峰值功率 Ppk = 44W;结电容 Cj ≈ 11pF;反向漏电流 Ir ≤ 500nA;封装为 DFN1006-2L,单通道双向结构,适配贴片自动化生产(TR=带卷包装)。

二、主要特性

  • 双向保护:无需极性区分,适用于交流或双向信号线。
  • 低钳位电压:VC=11V@4A,在冲击时能有效限制电压峰值,保护后端器件。
  • 低结电容(11pF):对多数低速/中速数据信号影响较小,适用于常见接口的抗静电设计。
  • 低漏电流:Ir ≤ 500nA,有利于低功耗系统和模拟信号完整性。
  • 符合 IEC 61000-4-2/4-4/4-5 等工业级抗扰度标准,可靠性高。
  • 超小 DFN1006-2L 封装,占板面积小,适用于便携与空间受限产品。

三、典型应用场景

  • 5V 电源线防护(便携设备、充电器输入等)。
  • GPIO、UART、I2C、SPI 等串行接口的防护(对结电容容忍度要求适中)。
  • 消费类与工业控制电子(机顶盒、智能家居、工控终端)的输入输出口保护。
  • 需要满足 IEC 静电与快速瞬变脉冲的场合。

四、封装与布局建议

DFN1006-2L 为超小表贴封装,推荐布局要点:

  • 元件尽量靠近受保护的连接器或信号源放置,缩短信号回路长度以降低串联感抗。
  • 两端接线短且宽,接地回路应低阻抗,必要时在附近设置 VIA 与地平面良好连接。
  • 在高速或高精度模拟路径上评估 11pF 的影响,必要时采用串联阻抗或选择更低电容 TVS。
  • 遵循厂家回流焊工艺规范进行贴装与焊接,避免热应力导致可靠性下降。

五、选型与设计注意事项

  • 若用于高速差分信号(USB3.0/HDMI 等)或对带宽要求极高的接口,应优先考虑更低结电容的器件;本型号更适合 5V 电源与低/中速信号。
  • 根据系统最大可承受电压和被保护器件的耐压选择 VRWM 和 VBR,确保在稳态下不触发击穿。
  • 综合考虑 Ipp(4A@8/20μs)与系统可能遭受的冲击能量,必要时并联多路或选用更高能量等级的 TVS。
  • 带卷包装(TR)适合大批量贴片生产,注意储存与防潮管理。

总结:ESD5451NL-2/TR 在小尺寸封装下提供 5V 级别的可靠双向瞬态抑制,适用于需要节省 PCB 空间且对钳位效率和合规性有要求的消费电子与工业应用。在高带宽场合请选择更低电容替代品;在 5V 电源与一般 I/O 保护方面,本器件为性价比较高的选择。

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