WMSIC Electronic Components

TWGMC BAV70W Dual Switching Diode BAV70W

ModelBAV70W
PackageSOT-323
BrandTWGMC
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
TWGMC BAV70W
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
BAV70W
Electronic Component
1
Package
SOT-323
Electronic Component
Switch Diode
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0265082569
Current
175mA
Diode
1
Current(Ir)
2.5uA
(Vf)
1.25V@150mA
Power Dissipation(Pd)
200mW
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.

BAV70W高速开关二极管产品概述

BAV70W是一款1对共阴极配置的高速开关二极管,采用SOT-323小型贴片封装,由台湾迪嘉(TWGMC)生产。其核心参数兼顾高速开关能力、中等耐压与小电流适配性,适用于对响应速度、空间占用要求较高的电子电路场景,是消费电子、通信、汽车电子等领域的常用分立器件。

一、核心基础参数概览

BAV70W的关键参数围绕高速开关、小信号适配设计,具体如下:

  • 正向特性:正向压降(Vf)典型值为1.25V(测试条件:150mA正向电流),压降稳定且在小电流范围内波动小,便于电路参数匹配;
  • 反向特性:直流反向耐压(Vr)达100V,满足多数低压电路的反向过压防护需求;反向漏电流(Ir)仅2.5μA(典型值),低漏电流可有效降低电路静态功耗;
  • 功率与电流:最大整流电流(IF(AV))为175mA,支持持续工作的小功率负载;最大耗散功率(Pd)为200mW,实际应用需注意降额(建议不超过额定值的80%);
  • 开关特性:反向恢复时间(Trr)仅4ns,远优于普通整流二极管(通常几十ns以上),可大幅减少开关过程中的能量损耗,提升电路响应速度。

二、封装与品牌信息

BAV70W采用SOT-323贴片封装,尺寸约1.6mm×0.8mm×0.6mm,具有体积小、重量轻的特点,适合高密度PCB布局(如手机、平板等便携设备)。

品牌方面,TWGMC(台湾迪嘉)是专注于半导体分立器件的厂商,产品以可靠性、性价比为核心优势,BAV70W符合其小信号二极管产品线的定位,可满足工业级与消费级电路的双重需求。

三、关键性能优势解析

BAV70W的差异化优势集中在高速、小型化、集成度三个维度:

  1. 高速开关能力:4ns的反向恢复时间是其核心亮点,可避免高频脉冲信号失真,适用于TTL/CMOS逻辑转换、射频信号整流等场景;
  2. 共阴极配置:1对共阴极结构简化了双路信号的钳位、整流设计(如两路信号的过压保护),无需额外焊接两个独立二极管,提升电路集成度;
  3. 低功耗适配:2.5μA的反向漏电流与稳定的正向压降,可降低待机功耗,适配便携式设备的电池续航需求;
  4. 中等耐压覆盖:100V反向耐压可覆盖多数低压电路(如5V~48V系统)的防护需求,避免器件击穿损坏。

四、典型应用场景

BAV70W的参数特性使其适配以下常见场景:

  • 高速逻辑电路:TTL/CMOS接口的电平转换、信号钳位,防止过压损坏逻辑芯片;
  • 小功率开关电源:5V/1A以下开关电源的续流二极管,利用高速特性减少开关损耗;
  • 通信设备:射频信号整流、脉冲信号整形,保证高频信号的完整性;
  • 汽车电子:车载中控、传感器接口的过压保护,SOT-323封装适配汽车电子的小型化需求;
  • 便携式设备:手机、平板的电源管理电路、按键信号切换,低功耗特性延长电池续航。

五、应用注意事项

为保证器件可靠性,实际应用需注意以下几点:

  1. 降额使用:工作电流建议不超过150mA(额定值的85%),耗散功率不超过160mW,避免过热;
  2. 焊接规范:回流焊温度需控制在260℃以下(时间≤10秒),手工焊接温度≤350℃(时间≤3秒),防止封装损坏;
  3. 反向电压限制:避免长时间施加超过100V的反向电压,防止击穿;
  4. 存储条件:常温(-55℃~150℃)下存储,避免潮湿环境影响引脚焊接可靠性。

总结

BAV70W凭借高速开关、小型化封装、共阴极集成及稳定的电气特性,成为小信号高速电路设计的优选器件。其兼顾性能与成本的优势,可广泛应用于消费电子、通信、汽车电子等领域,是工程师设计低压高速电路的常用分立器件之一。

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