WMSIC Electronic Components

Leiditech PDYL050B

ModelPDYL050B
PackageSOD-323
BrandLeiditech
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
Leiditech PDYL050B
Type
LEIDITECH
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
PDYL050B
Electronic Component
1
Package
SOD-323
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.025g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.6pF
Electronic Component
BM0257267971
Voltage
20V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
200nA
Voltage(VBR)
6V

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

PDYL050B 产品概述

一、产品简介

PDYL050B 是一款为低电压高速接口设计的单路瞬态电压抑制器(TVS/ESD 保护器)。器件采用 SOD-323 小封装,针对 5V 工作电压系统提供静电放电 (ESD) 与浪涌脉冲保护。其紧凑外形和低结电容特性,使之非常适合移动终端、接口板和高速数据线的保护应用。

二、主要参数与特性

  • 反向截止电压 Vrwm:5 V(适配 5V 电气接口)
  • 击穿电压(典型):6 V
  • 钳位电压:20 V(350W 峰值脉冲时)
  • 峰值脉冲功率 Ppp:350 W @ 8/20 μs(一次性或重复浪涌保护能力)
  • 反向电流 Ir:200 nA(在 Vrwm 下,低泄漏有利于节能与线路稳定)
  • 结电容 Cj:0.6 pF(极低寄生电容,减小对高速信号的影响)
  • 通道数:单路
  • 防护等级与兼容标准:符合 IEC 61000-4-2(ESD)、IEC 61000-4-4(脉冲群)、IEC 61000-4-5(浪涌)规范
  • 封装:SOD-323,适合表面贴装与高密度布局

三、产品优势与应用场景

  • 低结电容(0.6 pF):非常适合 USB、HDMI、小型高速差分对和射频前端等对信号完整性敏感的接口。
  • 5V 级别耐压与 6V 击穿:专为 5V 系统设计,可在正常工作下保持高可靠性。
  • 高脉冲功率能力(350W):能承受常见浪涌事件和工业环境下的冲击,结合 20V 钳位提供有效能量吸收。
    典型应用包括:移动设备接口保护、通信设备 I/O 端口、笔记本/平板的外设接口、物联网终端与工业控制信号防护等。

四、封装与布局建议

  • 将器件尽量靠近被保护的连接器或引脚放置,缩短线路以降低寄生电感。
  • 对于高速差分信号,确保两侧走线阻抗匹配并避免器件跨接引入不对称。
  • SOD-323 小封装适合自动贴装与回流焊工艺,建议参考制造商回流曲线与推荐 PCB 封装尺寸。
  • 在高能量环境下可并联合适放电路径(如地线加粗)以提升整体放电能力。

五、可靠性与合规性

PDYL050B 满足 IEC 61000-4 系列的 ESD、脉冲群与浪涌测试要求,适合需要电磁兼容与抗干扰能力的产品设计。器件低漏电特性有利于电池供电设备的待机功耗控制。为确保长期可靠性,建议在实际环境下进行系统级 ESD/浪涌验证。

六、选型与使用建议

  • 若被保护线路为 5V 逻辑或电源线,PDYL050B 为首选;若需要更低钳位以保护敏感器件,可考虑并联或选用钳位更低的型号。
  • 对于高速差分接口,0.6 pF 的低电容优势明显,但在双向保护需求下需确认器件极性与工作方式。
  • PCB 设计与接地布局对实际保护效果影响极大,务必保证器件到大地的低阻抗回流路径。
  • 选购时参考 Leiditech(雷卯电子)出具的完整规格书与应力测试数据,按照厂商推荐的存储与贴装规范操作。

PDYL050B 在体积、响应速度与抗浪涌能力之间实现了良好平衡,是面向 5V 系统、需兼顾高速信号完整性与可靠防护设计的实用选择。

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