WMSIC Electronic Components

Prisemi PTVSUC3D5VB

ModelPTVSUC3D5VB
PackageSOD-323
BrandPRISEMI
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
Prisemi PTVSUC3D5VB
Type
PRISEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PTVSUC3D5VB
Electronic Component
1
Package
SOD-323
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Channel Count
Electronic Component
Cj- Capacitor
1.2pF
Electronic Component
BM0265166909
Voltage
23.6V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA

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

PTVSUC3D5VB 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心优势

PTVSUC3D5VB是芯导(Prisemi)推出的双向低电容瞬态抑制二极管(TVS),专为高速信号接口的浪涌/静电防护设计,兼顾小封装与高性能,可有效应对电子设备中常见的ESD(静电放电)、EFT(电快速瞬变脉冲群)等瞬态干扰,保护后端敏感电路。

核心优势包括:

  • 低结电容(1.2pF):不影响高速信号传输质量;
  • 小封装SOD-323:适配小型化、高密度PCB设计;
  • 双向防护:正负脉冲均能有效钳位;
  • 符合主流EMC标准:通过IEC 61000-4-2/4-4认证。

二、关键电气性能参数解析

PTVSUC3D5VB的核心参数针对高速接口防护做了优化,关键参数及实际意义如下:

参数 数值 实际意义 极性 双向 可同时防护电路中的正、负瞬态脉冲,无需额外考虑方向设计 反向截止电压(Vrwm) 5V 正常工作电压下反向不导通,漏电流极小(≤1uA),不影响电路正常运行 击穿电压(Vbr) 6V 当瞬态电压超过5V时开始导通,启动防护功能 钳位电压(Vc) 23.6V 峰值脉冲(8/20us波形)下,将电压钳位至23.6V以下,保护后端器件(如IC) 峰值脉冲功率(Ppp) 240W@8/20us 可承受的最大浪涌功率,满足消费电子常见的浪涌防护需求 结电容(Cj) 1.2pF 高速信号传输时的电容负载极小,不衰减USB 2.0/3.0、HDMI等信号的完整性 反向漏电流(Ir) ≤1uA@Vrwm 正常工作时漏电流可忽略,不额外消耗系统功耗

三、封装与可靠性设计

PTVSUC3D5VB采用SOD-323表面贴装封装,尺寸仅为1.6mm×0.8mm×0.6mm(典型值),具备以下特点:

  • 小型化:适配智能手机、智能手表、IoT传感器等紧凑型设备的高密度PCB布局;
  • 高可靠性:符合RoHS标准,无铅焊接兼容,可通过回流焊工艺批量生产;
  • 散热性:封装设计利于瞬态脉冲的热量快速扩散,提升防护稳定性。

四、电磁兼容(EMC)防护能力

该器件通过了IEC 61000-4-2(ESD) 和 IEC 61000-4-4(EFT) 两项国际EMC标准测试,具体防护能力:

  • ESD防护:可承受±15kV(接触放电)、±20kV(空气放电)的静电冲击;
  • EFT防护:可承受4kV(5kHz重复频率)的电快速瞬变脉冲群干扰;
  • 浪涌防护:针对8/20us浪涌波形,峰值功率240W,可有效抑制电源或信号线上的瞬态过压。

五、典型应用场景

PTVSUC3D5VB的低电容、小封装特性使其适用于以下场景:

  1. 高速信号接口:USB Type-C、USB 2.0/3.0、HDMI 1.4/2.0、MIPI DSI/D-PHY等接口的静电/浪涌防护;
  2. 小型电子设备:智能手机、智能手表、无线耳机、便携式蓝牙音箱等;
  3. IoT与消费电子:智能家居传感器、智能手环、平板电脑、移动电源等;
  4. 工业控制辅助接口:低速率工业传感器的信号接口防护(非高压场景)。

六、选型与使用注意事项

  1. 电压匹配:确保后端电路的正常工作电压≤5V(Vrwm=5V),避免长期工作电压超过截止电压;
  2. 信号速率:1.2pF结电容适用于10Gbps以下的高速信号(如USB3.0、HDMI2.0),若需更高速率(如HDMI2.1)可考虑低电容TVS;
  3. PCB布局:尽量靠近接口连接器放置,减少引线电感(引线电感会降低钳位效果);
  4. 焊接工艺:采用回流焊,避免手工焊接时的高温损伤(SOD-323封装耐温≤260℃/10s);
  5. 并联使用:若需更高防护功率,可并联多个器件,但需注意电容叠加(并联n个则Cj=n×1.2pF)。

综上,PTVSUC3D5VB是一款性价比突出的高速信号防护器件,可满足多数消费电子、IoT设备的瞬态干扰防护需求。

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