WMSIC Electronic Components

Leiditech PESD0542U005

ModelPESD0542U005
Package0402
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Leiditech PESD0542U005
Type
LEIDITECH
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LEIDITECH
Electronic Component
PESD0542U005
Electronic Component
1
Package
0402
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.007g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
0.05pF
Electronic Component
BM0226990900
Operating Temperature
55℃~+125℃
Voltage
40V
Electronic Component
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.

P E S D 0 5 4 2 U 0 0 5 产品概述

一、产品简介

PESD0542U005 是 Leiditech(雷卯电子)推出的一款单路双向低容抗静电(ESD)保护器件,采用 0402 表面贴装封装。器件针对高速差分/单端信号线提供高效率的瞬态抑制,具有极低的结电容和宽温度工作范围,适合对信号完整性要求高且空间受限的电子设备保护。

二、主要技术参数

  • 极性:双向(Bidirectional)
  • 钳位电压(Vc,典型):40 V
  • 反向电流 Ir:典型 10 nA;最大 ≤0.1 μA(视测试条件)
  • 通道数:单路
  • 工作温度:-55 ℃ ~ +125 ℃
  • 防护等级/标准:符合 IEC 61000-4-2(静电放电)规范
  • 类型:ESD 抑制器(TVS)
  • 结电容 Cj:0.05 pF(极低,利于高速信号)
  • 封装:0402(约 1.0 × 0.5 mm)
  • 品牌:Leiditech(雷卯电子)

三、关键特性与优势

  • 极低结电容(0.05 pF):对高速接口(如 USB、差分对、射频前端、视频链路)几乎无负载,最大限度保持信号完整性与带宽。
  • 双向保护:适用于双向信号线及对地参考不明确的高速差分接口。
  • 低漏电流:典型 10 nA,静态功耗小,不影响高阻态或低功耗器件。
  • 紧凑 0402 封装:非常适合移动设备、可穿戴、IoT 等空间受限的主板设计与自动化贴装。
  • 满足 IEC 61000-4-2:在常见静电冲击场景下提供可靠防护,提升系统抗扰度。

四、典型应用场景

  • 智能手机、平板与可穿戴设备的高速数据接口防护
  • USB、HDMI、MIPI、LVDS、差分串行链路等高速接口的端口保护
  • 摄像头模组、通信模块与射频前端的防静电保护
  • 工业控制、汽车电子中对 ESD 抗扰动要求较高的信号线保护

五、封装与安装建议

  • 封装为 0402(SMD),适配常见自动贴片工艺(回流焊)。
  • 布板建议:将器件放置在被保护接口的输入端尽量靠近接口引脚,走线最短以降低感性环路;保护器到地的回流路径应尽可能宽且直接,若为差分线对,按信号对称布局。
  • 若用于对地型保护,确保可靠接地或参考地的低阻连接;在电源敏感系统中,可配合串联阻抗或滤波器共同优化保护效果。

六、可靠性与环境适应性

PESD0542U005 设计用于工业级工作温度(-55 ℃ 至 +125 ℃),适应较宽环境温度与常见应力。低漏电和稳定的钳位特性保证长期可靠性;0402 小尺寸封装亦利于减轻机械冲击影响。建议在高湿或腐蚀环境中结合合适封装/覆膜工艺提升抗环境老化能力。

七、使用注意事项

  • 在超高瞬态能量(如雷击浪涌)场景下,单个小尺寸 TVS 能量吸收有限,需配合更大能量抑制器或多级保护策略。
  • 对于极低电容要求的射频应用,仍需评估器件在工作频段的等效串联电抗与匹配影响。
  • 样机评估时应在目标板上做实际 ESD、信号完整性测试,以确认钳位和漏电对系统的实际影响。

八、小结

PESD0542U005(Leiditech)以其双向保护、超低结电容(0.05 pF)、小型 0402 封装和宽温度范围,特别适合对信号完整性与空间有严格要求的高速接口防护。合理布局与分级保护设计可进一步提升系统抗静电与抗浪涌能力,是移动、通信、工业及消费电子端口保护的理想选择。若需详细电气曲线及样品测试数据,建议索取厂方完整数据手册。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.