WMSIC Electronic Components

Prisemi PESDNC2FD3V3B

ModelPESDNC2FD3V3B
PackageDFN-1006
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Prisemi PESDNC2FD3V3B
Type
PRISEMI
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PRISEMI
Electronic Component
PESDNC2FD3V3B
Electronic Component
1
Package
DFN-1006
Electronic Component
Electronic Component
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Cj- Capacitor
12pF
Electronic Component
BM0226527313
Voltage
10.5V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
4.5V

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

PESDNC2FD3V3B 产品概述

一、产品简介

PESDNC2FD3V3B 是 Prisemi(芯导)推出的一款小型双向瞬态抑制二极管(TVS/ESD 抑制器),封装为 DFN-1006-2L。该器件专为 3.3V 工况下对抗静电放电与瞬态干扰设计,静态工作电压 Vrwm=3.3V,最低击穿电压 VBR(Min)=4.5V,钳位电压 VC=10.5V(典型,IPP 条件下),峰值脉冲功率 Ppp=45W(8/20µs),峰值脉冲电流 IPP≈6A,结电容 Cj≈12pF,反向漏电流 Ir≈1µA,双向结构可在正负极性瞬态下工作。

二、主要特性

  • 保护电压与钳位:Vrwm=3.3V,VBR(min)=4.5V,典型钳位 10.5V(8/20µs)。
  • 能量吸收:Ppp=45W(8/20µs),对应峰值浪涌电流约 6A。
  • 低漏电流:Ir≈1µA,适合电源与信号线路低功耗应用。
  • 中等结电容:Cj≈12pF,适用于多数数字/模拟数据线保护(对超高速差分线需评估)。
  • 双向、无极性设计:可直接用于可能出现正负极性瞬态的信号线或差分对。
  • 小型封装:DFN-1006-2L,节省 PCB 空间,适合便携和密集布线产品。

三、典型应用

  • 3.3V 系统的 I/O 端口保护(UART、I²C、SPI、GPIO)。
  • 移动终端、物联网节点、消费电子、工控模块中的外部接口防护。
  • 差分信号与控制总线的瞬态抑制(需评估结电容对信号完整性的影响)。
  • USB(低速/全速)、CAN、RS-485 等常见接口的局部保护(根据实际速率选型)。

四、封装与布板建议

  • 将器件安置在受保护端口与 PCB 线路之间,尽量靠近连接器/引脚,缩短受保护节点到器件引脚的跟踪长度。
  • 对地参考要短且低阻抗,优先使用大片地平面并在靠近器件处设置一至两个过孔接地以降低环路。
  • 双向器件无需方向性,但仍建议保证良好地线回流;在差分对保护时可结合对间型 TVS 布局或两只单通道并用。
  • 注意焊盘与散热走线,DFN-1006 体积小,焊接工艺需控制回流温度曲线以保证可靠性。

五、可靠性与合规

该器件符合 IEC 61000-4-2(静电放电)与 IEC 61000-4-4(快速瞬变脉冲群)等抗扰度标准,适合需要通过工业/消费类电磁兼容测试的产品。器件经过高温存储、温度循环与冲击等常规可靠性验证,适合长期稳定工作环境。

六、选型与应用注意事项

  • 若保护超高速差分接口(如 USB3.0、高速 HDMI 等),请优先选择更低结电容的 TVS 器件;Cj=12pF 适合多数低速/中速应用。
  • 在高频或精密模拟通道,需评估 TVS 对信号完整性的影响并可考虑并联缓冲或滤波。
  • 评估最大冲击能量和多次冲击场景,必要时采用并联或更高功率等级的 TVS 以提升保护余量。

如需样片、封装图纸、详细 I‑V/Clamping 曲线或在具体电路中的应用建议,可联系供应商或参考 Prisemi 官方技术资料。

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