WMSIC Electronic Components

WILLSEMI ESD56281N05-2/TR ESD56281N05

ModelESD56281N05-2/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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI ESD56281N05-2 / TR
Type
WILLSEMI
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
ESD56281N05-2/TR
Electronic Component
1
Package
DFN1006-2L
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.009g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
160pF
Electronic Component
BM0227584885
Voltage
8.8V
Electronic Component
IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
100nA

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

ESD56281N05-2/TR 瞬态抑制二极管产品概述

一、产品概览

ESD56281N05-2/TR 是 WILLSEMI(韦尔)推出的一款单向 TVS(瞬态抑制)二极管,封装为 DFN1006-2L(小型双引脚贴片)。器件针对静电放电(ESD)与浪涌抑制进行了优化,满足 IEC 61000-4-2(ESD)和 IEC 61000-4-5(浪涌)相关防护等级,适用于工业及消费类电子产品中对端口及电源线的瞬态保护需求。

二、主要电气参数

  • 极性:单向
  • 反向稳态电压 Vrwm:5.5 V(稳压工作电压/标称钳位前电压)
  • 击穿电压 Vbr:6.4 V(典型)
  • 钳位电压 Vc:8.8 V(在指定脉冲电流条件下)
  • 峰值脉冲电流 Ipp:40 A(8/20 μs 波形)
  • 反向漏电流 Ir:100 nA(典型)
  • 结电容 Cj:160 pF(典型)
  • 通道数:单路(单通道)
  • 包装:TR 表示卷带(Tape & Reel)

以上参数表明该器件在 5.5 V 级别的电源及信号线上提供可靠的单向浪涌/ESD 保护,低漏电和适中结电容使其在多数控制与接口线路中兼顾保护与信号完整性。

三、典型应用场景

  • USB、电源供电线、数据通信接口的端口保护
  • 手机模块、物联网节点与便携设备的外部接口防护
  • 工业控制、仪表与消费类电子的输入/输出线路防护
  • PCB 上靠近连接器或敏感器件的局部浪涌/ESD 保护

需要注意:Cj=160 pF 在某些极高速接口(例如要求极低电容的高速差分信号链)可能影响信号完整性,应用前应根据带宽需求评估。

四、封装与 PCB 设计建议

  • DFN1006-2L 小型封装利于节省 PCB 面积,适合空间受限设计。
  • 布局时应尽量缩短被保护信号引脚到器件的走线长度,并将器件接地端直接通过低阻抗回流路径连至公共地或保护地。
  • 对于高能量脉冲,建议在靠近保护对象处设置熔断器或限流器以分担能量。
  • 裸露焊盘与焊盘尺寸应参考厂家推荐的焊盘图,严格控制焊接温度曲线以防封装应力和锡桥问题。TR 表示卷带包装,便于贴片生产线直接上料。

五、使用注意事项

  • 器件为单向 TVS,选择时保证系统工作电压低于 Vrwm(5.5 V),以避免工作状态下出现非预期导通。
  • 由于结电容为 160 pF,若用于高频/高速差分通道需评估对阻抗和上升沿的影响;对于纯电源或低速信号线路,电容影响可忽略。
  • 实际钳位电压随脉冲电流、脉宽及 PCB 布局不同而变化,设计时应考虑裕量并做实际测量验证。
  • 储存和贴装应遵循常规防静电及潮湿防护要求,卷带包装便于 SMT 贴装线使用。

六、小结

ESD56281N05-2/TR 为一款针对 5.xV 级系统设计的单向 TVS 二极管,具备 40 A(8/20 μs)峰值浪涌承受能力、低漏电和符合 IEC ESD/浪涌标准的防护性能。其 DFN1006-2L 小封装适合紧凑型 PCB 布局,是对电源线与常见接口进行瞬态防护的实用选择。在高速信号应用中,请结合 160 pF 的结电容特性进行详细评估与测试。若需进一步的原理图接法、参考 PCB 布局或老化/测试数据,可根据具体应用场景提供更详细的设计支持。

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