WMSIC Electronic Components

LRC S-LESD8D3.3CBT5G

ModelS-LESD8D3.3CBT5G
PackageSOD-882
BrandLRC
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
LRC S-LESD8D3.3CBT5G
Type
LRC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
LRC
Electronic Component
S-LESD8D3.3CBT5G
Electronic Component
1
Package
SOD-882
Type
ESD
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.01g
Electronic Component
1
Cj- Capacitor
25pF
Electronic Component
BM0265847298
Operating Temperature
55℃~+150℃
Voltage
9V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
50nA
Voltage(VBR)
5V

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

S-LESD8D3.3CBT5G ESD保护二极管产品概述

S-LESD8D3.3CBT5G是乐山无线电(LRC) 推出的一款小型化瞬态抑制二极管,专为敏感电子电路的静电放电(ESD)防护设计,具备低漏电流、精准钳位等核心特性,适配3.3V供电系统的高密度、低功耗应用需求。

一、产品定位与核心功能

作为一款ESD保护二极管,S-LESD8D3.3CBT5G的核心作用是在静电放电事件发生时,快速将瞬态过压限制在后端器件的安全耐压范围内,避免MCU、传感器、通信接口等敏感组件因过压损坏。其设计目标是兼顾“防护可靠性”与“电路兼容性”,尤其适合对功耗、体积要求严格的便携式、物联网及工业电子设备。

二、关键电气参数深度解析

该器件的电气参数针对3.3V系统做了精准优化,核心参数的实际意义如下:

1. 反向截止电压(Vrwm=3.3V)

反向截止电压是器件正常工作时可承受的最大反向偏置电压——当电路处于静态(无ESD脉冲)时,3.3V的Vrwm与主流3.3V供电系统完全匹配,器件保持截止状态,无明显电流导通,确保电路信号传输不受干扰,也不会额外消耗系统功耗。

2. 击穿电压(Vbr=5V)

击穿电压是器件开始导通的临界电压。当ESD脉冲(如人体模型HBM、机器模型MM或充电设备模型CDM)到来时,若电压超过5V,器件将快速从截止态转为导通态,将瞬态电流泄放到地,避免电压持续上升。

3. 钳位电压(Vc=9V)

钳位电压是ESD事件中器件导通后两端的最大电压(由导通电阻与瞬态电流共同决定)。9V的钳位电压是该器件的核心优势之一:既高于击穿电压确保导通,又低于3.3V系统中多数敏感器件(如MCU IO口)的最大耐压(通常10V左右),能有效将过压限制在安全阈值内,保护后端电路。

4. 反向漏电流(Ir=50nA)

反向漏电流是器件截止状态下的反向电流,50nA属于极低水平——这意味着即使在长时间工作中,器件也几乎不消耗额外电流,完全适配电池供电的低功耗设备(如物联网传感器节点),不会影响系统续航。

三、封装与可靠性设计

S-LESD8D3.3CBT5G采用SOD-882超小型表面贴装封装,尺寸仅约0.8mm×0.6mm×0.4mm,可显著节省PCB空间,适合智能手机、智能穿戴等轻薄化产品的高密度布局。

此外,该器件符合RoHS环保标准,工作温度范围覆盖**-55℃至150℃**(工业级宽温设计),焊接可靠性高,可通过回流焊、波峰焊等主流工艺批量生产,适配不同制造场景的需求。

四、典型应用场景

结合参数特性,该器件的核心应用场景包括:

1. 消费电子终端

智能手机、平板电脑、智能手表的USB接口、耳机接口、触控屏IC等易受静电干扰的部位——低漏电流不影响音频、触控信号,小型化封装适配设备轻薄化趋势。

2. 物联网(IoT)设备

低功耗传感器节点、智能家居控制器、可穿戴设备的数字IO口、无线通信模块(如Wi-Fi、蓝牙)——50nA漏电流可延长电池续航,3.3V适配主流MCU供电。

3. 工业控制与通信

PLC的数字输入输出口、RS485/CAN总线接口、工业传感器的信号端口——宽温范围满足工业环境的温度波动需求,ESD防护确保设备稳定运行。

4. 车载电子(拓展场景)

若符合AEC-Q101车规要求,可应用于车载信息娱乐系统的USB接口、中控屏触控IC——低漏电流适配车载低功耗设计,精准钳位保护敏感组件。

五、选型优势总结

相较于同类ESD保护器件,S-LESD8D3.3CBT5G的核心优势在于:

  1. 精准适配3.3V系统:Vrwm、Vbr、Vc参数链完美匹配主流3.3V供电电路,防护效果精准;
  2. 低功耗兼容性:50nA漏电流几乎不影响系统功耗,适合电池供电设备;
  3. 小型化高密度:SOD-882封装节省PCB空间,适配轻薄化产品设计;
  4. 品牌可靠供应:LRC作为国内知名半导体厂商,器件品质稳定,批量供应能力强,售后保障完善。

综上,S-LESD8D3.3CBT5G是一款专为3.3V系统优化的高性价比ESD保护二极管,可广泛应用于消费电子、物联网、工业控制等领域,为敏感电路提供可靠的静电防护。

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