WMSIC Electronic Components

MSKSEMI SD05C

ModelSD05C
PackageSOD-323
BrandMSKSEMI
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
MSKSEMI SD05C
Type
MSKSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
SD05C
Electronic Component
1
Package
SOD-323
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.03g
Electronic Component
1
Cj- Capacitor
10pF
Electronic Component
BM0264965987
Voltage
18V
Current(Ir)
17uA
Voltage(VBR)
6V
Electronic Component
Electronic Component
Electronic Component
3000

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

SD05C(MSKSEMI)静电/浪涌保护器件产品概述

一、产品定位与核心功能

SD05C是美森科(MSKSEMI)推出的TVS/ESD复合保护器件,专为5V及以下低电压电子系统设计,核心作用是抑制静电放电(ESD)脉冲和瞬态浪涌,防止敏感电子元件(如MCU、传感器、通信接口)因过压损坏。该器件通过“反向截止-击穿钳位”机制实现防护:正常工作时保持截止状态,不干扰电路;异常过压时快速导通泄放能量,将电压钳位在安全范围内,保障后端电路稳定运行。

二、关键参数深度解析

SD05C的参数围绕“低电压适配+瞬态耐受”优化,核心参数及实际意义如下:

  1. 反向截止电压(Vrwm=5V):正常工作时,反向偏置电压≤5V则截止,漏电流极小,精准匹配5V供电系统(如多数MCU、传感器)的电压范围,无需额外降额设计。
  2. 击穿电压(Vbr=6V):反向电压超过6V时进入击穿状态,为瞬态过压提供泄放通道,是钳位保护的起点。
  3. 钳位电压(Vc=18V):8/20μs标准浪涌波形下,可将过压钳位至18V以内,远低于大多数敏感元件(如MCU IO口耐压≤20V)的极限值,避免元件击穿。
  4. 峰值脉冲电流(Ipp=20A):能承受最大20A瞬态浪涌电流,满足USB插拔浪涌、静电放电(如人体模型HBM±8kV)等场景的防护需求。
  5. 反向漏电流(Ir=17μA):截止状态漏电流仅17μA,对低功耗电路(如智能穿戴)影响极小,延长电池续航。
  6. 结电容(Cj=10pF):中低水平结电容,兼容SPI、I2C、USB 2.0等中低频信号线路,高频场景需搭配低容值器件。

三、封装与品牌背景

  1. 封装形式(SOD-323):采用小型表面贴装封装,尺寸约1.6mm×0.8mm×0.6mm,厚度仅0.6mm,适配手机、智能手表等紧凑设计产品;兼容回流焊、波峰焊,焊接工艺成熟。
  2. 品牌背景(MSKSEMI美森科):国内专注半导体保护器件的厂商,拥有10+年ESD/TVS研发经验,产品通过RoHS、REACH认证,供货稳定且性价比突出,广泛应用于消费电子、工业控制、IoT领域。

四、典型应用场景

SD05C的参数特性决定其适合以下场景:

  1. 消费电子便携设备:手机、平板的充电接口(Micro USB/Type-C)、数据接口(耳机孔、传输口)的ESD防护。
  2. 低电压工业控制:小型传感器节点(温湿度、压力传感器)、PLC IO口、RS485通信线路的浪涌防护。
  3. IoT终端设备:智能家居(智能灯泡、门锁)、智能穿戴的低电压控制电路防护。
  4. 数字电路接口:5V供电MCU(STM32、Arduino)、FPGA的IO口、SPI/I2C通信接口的ESD防护。

五、选型优势与应用注意事项

选型优势

  • 精准适配低电压:Vrwm=5V直接匹配主流5V系统,简化电路设计。
  • 小型化省空间:SOD-323封装节省PCB面积,适合微型产品。
  • 低功耗兼容:17μA漏电流不影响电池设备续航。
  • 性价比突出:量产能力保障成本优势,适合批量应用。

应用注意事项

  1. 电压范围限制:仅适用于5V及以下系统,≥6V需选更高Vrwm器件(如SD06C)。
  2. 高频信号兼容:10pF结电容不适合GHz以上高频(如WiFi 6),需替换低容值ESD器件。
  3. 焊接规范:焊接温度≤260℃,时间≤3秒,避免热损坏。
  4. 并联扩容:需更大浪涌承受力(≥30A)时,可并联2-3个,但结电容会叠加(并联后20-30pF)。

SD05C以“小体积、低功耗、精准防护”的特点,成为5V低电压系统ESD/浪涌防护的高性价比选择,覆盖消费电子、工业、IoT等多领域应用需求。

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