WMSIC Electronic Components

Prisemi PTVSLC3D3V3B

ModelPTVSLC3D3V3B
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 PTVSLC3D3V3B
Type
PRISEMI
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PTVSLC3D3V3B
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
Cj- Capacitor
3.5pF
Electronic Component
BM0227760366
Operating Temperature
55℃~+150℃
Voltage
21V
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.

PTVSLC3D3V3B 产品概述

一、产品简介

PTVSLC3D3V3B 是 Prisemi(芯导)推出的一款双向瞬态抑制二极管(TVS),专为 3.3V 线上对称过压/ESD 抑制而设计。器件采用微型 SOD-323 封装,适合空间受限的消费电子、通信接口及工业控制场景,对静电放电(ESD)和电快速瞬变(EFT)具有良好的抑制能力。

二、主要参数

  • 钳位电压(最大):21 V
  • 工作温度范围:-55 ℃ ~ +150 ℃
  • 击穿电压(最小):4 V
  • 反向截止电压 Vrwm:3.3 V
  • 峰值脉冲功率 Ppp:350 W @ 8/20 μs
  • 峰值脉冲电流 Ipp:20 A @ 8/20 μs(资料亦列出 10/1000 μs 条件下 Ipp=20 A)
  • 峰值脉冲电流(另注):20 A @ 10/1000 μs(制造商说明)
  • 反向电流 Ir:1 μA
  • 结电容 Cj:3.5 pF
  • 极性:双向(Bidirectional)
  • 防护等级:符合 IEC 61000-4-2(ESD)与 IEC 61000-4-4(EFT)标准
  • 封装:SOD-323

三、主要特性

  • 双向结构:对正负脉冲均能提供对称保护,适用于差分或双向传输线路。
  • 低结电容(3.5 pF):不会显著影响高速信号完整性,适合 USB、串行接口等高速数据线保护。
  • 低漏电流(典型 1 μA):对低功耗系统影响小,可直接用于敏感电源或接口。
  • 强脉冲吸收能力:8/20 μs 波形下 350 W 峰值功率,能承受工业级瞬态冲击。
  • 宽温度范围:-55 ℃ 至 +150 ℃,适合恶劣环境和工业级应用。

四、典型应用场景

  • 3.3V 电源轨瞬态保护与浪涌吸收。
  • 高速数据接口保护(I2C、SPI、UART、TTL/CMOS 逻辑线)。
  • USB/HDMI 等接口的辅助保护(作为序列线上一级防护器件)。
  • 工业控制与传感器接口的 ESD/EFT 防护。
  • 无线模块、通信终端以及汽车电子的瞬态浪涌防护(在符合温度和规格前提下)。

五、设计与布局建议

  • 靠近受保护端口或接口焊盘布置 TVS,走线尽可能短且宽,缩短信号/电流回路以降低感性耦合。
  • 对于高速差分线,尽量使 TVS 与差分对之间的引线长度对称以减少失配。
  • 对于敏感模拟或低泄漏场合,可在 TVS 与信号线间加入微小系列阻抗以减少复合干扰。
  • 推荐配合适当的接地平面和旁路电容使用,接地应直接回流至系统接地以保证峰值脉冲能量有效散逸。

六、可靠性与合规

  • 器件符合 IEC 61000-4-2(ESD)与 IEC 61000-4-4(EFT)抗扰度要求,适用于要求抗静电和电快速瞬变的工业/消费类产品。
  • 宽温范围及低漏电特性保证在极端环境下长期稳定工作;在具体应用前建议根据工作电压、脉冲波形进行应力测试验证寿命裕量。

七、封装与选型建议

  • 封装:SOD-323,利于表面贴装与自动化生产。
  • 选型提示:本型号 Vrwm 为 3.3 V,适用于 3.3 V 系统;若系统为单向电源或更高工作电压,请选择相应 Vrwm/击穿电压等级的 TVS。
  • 订购与替换:型号 PTVSLC3D3V3B(Prisemi)为参考件号,替换时请核对 Vrwm、Ipp、Ppp、钳位电压及结电容等关键参数以确保兼容性。

若需提供典型浪涌响应曲线、封装尺寸图或 PCB 布局示意,可进一步提供文档支持与参考电路。

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