WMSIC Electronic Components

Prisemi PTVSUC3D3V3B

ModelPTVSUC3D3V3B
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 PTVSUC3D3V3B
Type
PRISEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PTVSUC3D3V3B
Electronic Component
1
Package
SOD-323
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.029g
Electronic Component
1
Cj- Capacitor
1.5pF
Electronic Component
BM0265565274
Voltage
23V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
4.5V
Electronic Component
Electronic Component

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

PTVSUC3D3V3B 瞬态抑制二极管(TVS)产品概述

一、产品定位与核心属性

PTVSUC3D3V3B是芯导电子(Prisemi)推出的小型化低电容瞬态抑制二极管(TVS),专为3.3V供电系统的高速信号线路设计,平衡了ESD/浪涌防护性能与信号完整性,适配高密度PCB布局需求。作为瞬态抑制器件,其核心作用是快速钳位电路中的瞬态过压,保护后级敏感电子元件(如MCU、传感器、无线模块)免受静电放电(ESD)、电快速瞬变脉冲群(EFT)等干扰损坏。

二、关键电气参数解析

该器件的电气参数针对性强,精准适配3.3V系统防护需求,核心参数如下:

  1. 反向截止电压(Vrwm=3.3V):器件正常工作时反向偏置的最大允许电压,与主流3.3V供电系统(如低功耗MCU、蓝牙模块)完全匹配,静态下不导通,不影响系统功耗与信号传输。
  2. 击穿电压(Vbr=4.5V):反向电压达到4.5V时器件开始击穿导通,比Vrwm高1.2V,可避免系统电压波动(如电源纹波±0.3V)导致的误触发。
  3. 钳位电压(Vc=23V):8/20μs浪涌脉冲冲击下的最大电压钳位值,是防护能力的核心指标——当瞬态过压超过击穿电压时,器件快速导通(响应时间ns级),将端口电压限制在23V以内,保护后级器件不被过压击穿。
  4. 峰值脉冲电流(Ipp=20A@8/20μs):8/20μs波形(IEC标准浪涌波形)下的最大可承受脉冲电流,可有效抑制常见的电源浪涌、静电冲击。
  5. 峰值脉冲功率(Ppp=350W@8/20μs):浪涌功率容量,与Ipp配合体现器件的浪涌耐受能力,满足消费电子、工业控制的典型防护需求。
  6. 反向漏电流(Ir=1μA@Vrwm):低漏电流设计,静态下对系统功耗影响极小,适合智能穿戴等低功耗场景。
  7. 结电容(Cj=1.5pF):低结电容是该器件的核心优势,可避免对高速信号(如USB 2.0、蓝牙、低速率HDMI)的衰减或失真,确保信号完整性。

三、封装与物理特性

PTVSUC3D3V3B采用SOD-323封装(表面贴装),具有以下特点:

  • 尺寸紧凑:典型尺寸为1.6mm×0.8mm×0.6mm,适配高密度PCB设计(如智能手表、小型传感器模块);
  • 无铅环保:符合RoHS标准,适配绿色电子产品设计;
  • 焊接兼容性:支持回流焊、波峰焊等主流焊接工艺,生产效率高。

四、电磁兼容(EMC)防护能力

该器件严格符合IEC 61000-4-2(ESD防护) 和IEC 61000-4-4(EFT防护) 国际标准,可有效应对:

  • ESD干扰:接触放电可达8kV、空气放电可达15kV,保护端口免受人体静电、设备静电的冲击;
  • EFT干扰:抑制重复频率kHz级、峰值电压高的电快速瞬变脉冲,避免数字电路误触发或损坏。

五、典型应用场景

结合参数特性,PTVSUC3D3V3B适用于以下场景:

  1. 消费电子终端:智能手机、平板电脑的USB接口、耳机接口、充电端口;
  2. 智能穿戴设备:智能手表、手环的传感器接口、蓝牙天线端口;
  3. 工业控制模块:PLC的低功耗I/O接口、无线通信模块(WiFi、蓝牙)的信号端口;
  4. 车载小型单元:车载USB充电口、后视镜摄像头的信号接口(适配车载3.3V系统)。

六、选型与使用注意事项

为确保防护效果,需注意以下要点:

  1. 电压匹配:仅适配3.3V供电系统,避免用于2.5V或5V系统(需选择对应Vrwm的TVS);
  2. 电容匹配:高速信号(如1Gbps以上)需确认1.5pF电容是否满足信号完整性要求,更高频率可选择更低电容的TVS;
  3. 布局要求:TVS需就近并联在被保护端口与地之间,减少引线电感(引线电感会降低防护效果);
  4. 焊接控制:无铅封装需遵循芯导推荐的回流焊温度曲线(峰值温度≤245℃,时间≤40s),避免过热损坏;
  5. 温度适应性:工作温度范围为-55℃~150℃,满足工业级与消费级应用的温度需求。

PTVSUC3D3V3B凭借小体积、低电容、精准防护的特性,成为3.3V系统高速信号线路的理想防护器件,可有效提升电子设备的可靠性与EMC性能。

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.