WMSIC Electronic Components

BORN BST23C122V

ModelBST23C122V
PackageSOT-23
BrandBORN
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
BORN BST23C122V
Type
BORN
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BORN
Electronic Component
BST23C122V
Electronic Component
1
Package
SOT-23
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.033g
Electronic Component
1
Cj- Capacitor
35pF
Electronic Component
BM0263578200
Voltage
25V
Electronic Component
IEC 61000-4-4;IEC 61000-4-5;IEC 61000-4-2
Current(Ir)
500nA
Voltage(VBR)
13.3V

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

BST23C122V 静电与浪涌保护器件(TVS/ESD)产品概述

BST23C122V是伯恩半导体(BORN)推出的一款集成静电放电(ESD)与浪涌防护功能的瞬态抑制二极管(TVS),采用紧凑的SOT-23封装,专为12V级低电压电子设备的敏感线路提供可靠防护,符合多项国际电磁兼容(EMC)标准,适配消费电子、工业控制等多场景需求。

一、产品核心定位与基础特性

作为双向TVS/ESD防护器件,BST23C122V无需区分正负极性,可直接跨接在信号或电源线路与地之间,简化电路设计。其核心定位是低电压系统的多维度防护——同时应对静电放电、电快速瞬变脉冲群(EFT)及浪涌冲击,解决电子设备在日常使用或环境干扰下的失效风险(如ESD导致的IC击穿、浪涌引发的电源异常)。

二、关键电气参数及防护能力解析

(1)防护核心参数

  • 反向截止电压(Vrwm):12V
    常态下器件处于截止状态,不影响电路正常工作(适配12V供电/信号线路);当电压超过此值时,器件快速导通,泄放瞬态能量。
  • 钳位电压:25V
    浪涌/ESD冲击时,将线路电压钳位在25V以内,远低于敏感元件的损坏阈值(普通IC过压损坏电压多≥30V),确保后端电路安全。
  • 峰值脉冲电流(Ipp):10A@8/20μs
    支持IEC 61000-4-5定义的8/20μs标准浪涌电流波形,可泄放10A峰值瞬态电流,覆盖多数民用/工业设备的浪涌防护需求。
  • 峰值脉冲功率(Ppp):350W@8/20μs
    对应浪涌冲击下的最大耗散功率,验证了器件的能量耐受能力,避免单次大能量冲击导致失效。

(2)静态与高频特性

  • 反向漏电流(Ir):500nA
    常态漏电流极小,不消耗额外功率,对低功耗电路(如IoT传感器)影响可忽略。
  • 结电容(Cj):35pF
    低结电容设计减少对高频信号的衰减,适配音频、USB 2.0等高频线路,避免信号失真。

(3)防护标准符合性

器件通过IEC 61000-4-2(ESD)、IEC 61000-4-4(EFT)、IEC 61000-4-5(浪涌) 三项核心EMC标准,覆盖典型测试等级:

  • ESD:接触放电±8kV、空气放电±15kV;
  • EFT:电源线路±2kV/5kHz、信号线路±1kV/5kHz;
  • 浪涌:差模±2kV、共模±1kV。

三、封装与应用场景适配

(1)封装特点

采用SOT-23封装(尺寸约2.9×1.6×1.1mm),体积小巧,适合高密度PCB布局(如智能手机、智能手表、小型传感器模块),支持表面贴装工艺,便于自动化生产。

(2)典型应用场景

  1. 消费电子:手机、平板、蓝牙耳机的充电口、耳机孔、USB接口防护;
  2. 小型家电:智能音箱、遥控器、智能家居传感器的电源/信号线路防护;
  3. 工业控制:小型PLC模块、传感器节点的低电压输入线路防护;
  4. 通信终端:无线AP、IoT设备的天线接口、数据接口防护。

四、性能优势总结

  1. 双向防护简化设计:无需区分正负极,降低电路设计与焊接难度;
  2. 多标准覆盖:同时满足ESD、EFT、浪涌防护,减少器件冗余;
  3. 低功耗与高频兼容:小漏电流、低结电容,适配低功耗与高频电路;
  4. 小封装易集成:SOT-23封装适合小型化设备,满足紧凑布局需求。

五、电路应用注意事项

  1. 并联安装:需跨接在被防护线路(信号/电源)与地之间,确保瞬态能量快速泄放;
  2. 电压匹配:仅适用于12V系统,更高电压线路需降额使用;
  3. 布局优化:尽量靠近防护端口,减少引线电感对防护效果的影响。

BST23C122V凭借可靠的防护性能、紧凑封装与宽适配性,成为12V级电子设备静电与浪涌防护的高性价比选择,可有效提升设备的电磁兼容可靠性与使用寿命。

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