WMSIC Electronic Components

Nexperia PESD2CANFD27V-QBZ PESD2CANFD27V

ModelPESD2CANFD27V-QBZ
PackageDFN1110D-3
BrandNexperia
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

20 specifications

Core information

Product name
Nexperia PESD2CANFD27V-QBZ
Type
NEXPERIA
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
NEXPERIA
Electronic Component
PESD2CANFD27V-QBZ
Electronic Component
1
Package
DFN1110D-3
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.021g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
5.2pF
Voltage
28V
Electronic Component
BM0227556668
Voltage
44V

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

PESD2CANFD27V-QBZ 双路TVS二极管产品概述

PESD2CANFD27V-QBZ是Nexperia(安世)推出的高速CAN FD总线专用双路TVS二极管,针对汽车、工业自动化等领域的CAN FD通信节点设计,核心解决ESD(静电放电)和瞬态浪涌防护问题,同时兼顾信号完整性,是高可靠性CAN总线防护的理想选择。

一、产品定位与核心应用场景

该器件专为CAN FD(Flexible Data Rate)总线系统优化——CAN FD是传统CAN总线的升级版本,支持5Mbps以上高速数据传输,对防护器件的结电容、响应速度要求更高。PESD2CANFD27V-QBZ的双路通道可直接匹配CAN_H和CAN_L差分线,典型应用场景包括:

  • 车载电子:动力系统ECU、车身网关、OBD诊断接口、仪表盘CAN FD节点;
  • 工业自动化:PLC、机器人控制器、工业传感器的CAN FD通信链路;
  • 其他高速差分总线:类似CAN FD的高速通信链路(如部分工业以太网)的瞬态防护。

二、关键电气参数解析

器件参数针对CAN FD总线特性精准设计,核心参数及意义如下:

  1. 防护方向与工作电压:双向极性(适配差分线双向信号传输),反向截止电压Vrwm=27V——覆盖CAN FD总线正常工作时的共模/差分电压范围(共模±12V、差分±2V),正常工作不导通,无信号干扰;
  2. 防护阈值与钳位能力:击穿电压Vbr=28V(接近Vrwm,浪涌时快速导通),钳位电压Vc=44V(将过压限制在44V以内,保护后级CAN收发器);
  3. 脉冲承受能力:峰值脉冲电流Ipp=2.5A@8/20μs(符合IEC 61000-4-2脉冲波形,承受典型ESD/浪涌冲击);
  4. 信号完整性保障:结电容Cj=5.2pF(双路每路电容低,避免高速信号衰减/失真),反向漏电流Ir=1nA(漏电流极小,不影响总线通信)。

三、封装与物理特性

采用DFN1110D-3超小型封装,具备以下优势:

  • 尺寸紧凑:1.1mm×1.0mm×0.5mm,适配汽车电子、工业模块的高密度PCB设计;
  • 散热与可靠性:DFN封装热阻低(无引脚设计减少寄生电感),提升防护响应速度;符合RoHS/REACH无铅无卤标准;
  • 引脚配置:3引脚(2信号+1接地),直接匹配CAN_H/CAN_L与地的连接,布线简单。

四、防护性能与标准合规

满足多项国际标准,确保应用可靠性:

  • ESD防护:符合IEC 61000-4-2,典型承受接触放电±8kV、空气放电±15kV(汽车级兼容ISO 10605);
  • 浪涌抑制:有效抑制雷电感应、电源开关噪声等瞬态浪涌;
  • 汽车级可靠性:符合AEC-Q101标准,工作温度-40℃至125℃,适配车载宽温环境。

五、典型应用设计要点

为最大化防护效果,设计需注意:

  1. 布局优化:TVS靠近CAN总线连接器(距离≤5mm),减少线路寄生电感(避免实际钳位电压升高);
  2. 布线规则:双路分别接CAN_H/CAN_L到地,接地引脚直接接PCB地平面(避免长地线寄生电感);
  3. 配合使用:与CAN收发器并联,配合自恢复保险丝实现过流+过压双重防护;
  4. 温度适配:汽车级应用需确保器件工作在-40℃至125℃范围内。

综上,PESD2CANFD27V-QBZ是CAN FD总线定制的高可靠性TVS二极管,平衡防护性能与信号完整性,适合汽车、工业等对CAN通信可靠性要求高的场景。

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