WMSIC Electronic Components

CBI BAV70

ModelBAV70
PackageSOT23
BrandCBI
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 Option 64550

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CBI BAV70
Type
CBI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CBI
Electronic Component
BAV70
Electronic Component
1
Package
SOT23
Electronic Component
Switch Diode
Electronic Component
0.03g
Electronic Component
20
Electronic Component
BM0265834818
Current
200mA
Diode
1
Current(Ir)
2.5uA@70V
(Vf)
1.25V@150mA
Power Dissipation(Pd)
225mW
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.

BAV70 高速开关二极管(共阴极双管)产品概述

BAV70是创基电子(CBI) 推出的一款共阴极双开关二极管,采用紧凑的SOT-23封装,专为低功耗、高频开关场景设计,兼具高速响应、低损耗与可靠防护性能,广泛应用于消费电子、通信及汽车电子等领域。

一、产品核心身份与封装特征

BAV70的核心结构为1对共阴极二极管:两个独立二极管共用阴极引脚,阳极分别引出,这种集成设计可减少电路元件数量,简化布局。封装采用SOT-23(小外形晶体管封装),尺寸仅约2.9×1.6×1.1mm,重量轻、占板面积小,是便携设备、小型化电路的理想选择。

二、关键电气参数解析

BAV70的电气参数针对开关应用做了针对性优化,核心参数如下:

  1. 正向压降(Vf):1.25V@150mA——远低于普通整流二极管(如1N4007高频下Vf损耗更高),导通损耗小,适合3.3V/5V等低电压供电场景;
  2. 直流反向耐压(Vr):70V——满足多数低压电路(12V/24V系统)的反向防护需求,防止反向击穿损坏后级元件;
  3. 连续整流电流(If):200mA——可稳定承载小功率连续负载(如传感器信号处理、辅助电源);
  4. 耗散功率(Pd):225mW——低功耗特性,避免长时间工作过热,适配电池供电设备;
  5. 反向漏电流(Ir):2.5μA@70V——反向关断时漏电流极小,提升电路效率与静态稳定性;
  6. 反向恢复时间(Trr):6ns——高速开关的核心指标,可快速完成“导通-关断”切换,避免高频下的能量损耗;
  7. 非重复浪涌电流(Ifsm):2A——可承受瞬间过流冲击(如静电放电、电源瞬变),增强电路可靠性。

三、核心性能优势

BAV70的性能优势源于参数优化与结构设计,具体体现为:

  1. 高速开关响应:6ns反向恢复时间,适配100MHz以上高频信号切换(如射频收发器、高速逻辑门);
  2. 低损耗导通:1.25V正向压降,150mA工作电流下导通损耗仅0.1875W,远低于同类产品;
  3. 集成化设计:共阴极双管替代两个独立二极管,节省PCB空间30%以上,降低BOM成本;
  4. 可靠防护能力:70V反向耐压+低漏电流抑制反向过压,2A浪涌电流应对瞬间过流冲击;
  5. 宽适配场景:小封装、低功耗特性,覆盖便携设备(手机、手环)、通信设备(路由器)、汽车电子(传感器辅助电路)等领域。

四、典型应用场景

BAV70的性能匹配多种实际场景,常见应用包括:

  1. 高频信号切换:射频收发器的信号路径切换、FPGA/MCU输入输出的钳位电路;
  2. 低压电源辅助:开关电源辅助绕组续流、DC-DC转换器续流二极管(200mA电流满足小功率需求);
  3. 接口防护:USB、HDMI等接口的静电/过压防护(共阴极双管实现双向钳位);
  4. 便携设备电路:手机按键开关、智能手环传感器信号处理(小封装适配设备空间);
  5. 汽车电子辅助:车载胎压监测传感器的信号调理(70V耐压满足汽车12V系统防护)。

五、选型与使用注意事项

为确保BAV70稳定工作,需注意以下要点:

  1. 电流限制:连续工作电流不超200mA,避免长时间过载过热;
  2. 电压防护:反向电压不超70V,48V以上场景需配合TVS二极管;
  3. 散热布局:SOT-23封装散热面积小,PCB布局需预留空间,避免与发热元件密集排列;
  4. 温度范围:商业级温度(-55℃~150℃),需确认实际应用环境是否符合;
  5. 静电防护:焊接/存储需遵循ESD规范,避免静电损坏。

六、品牌与可靠性说明

BAV70由创基电子(CBI) 生产,该品牌是国内知名半导体厂商,产品符合RoHS2.0标准,批量一致性好。已通过温度循环、湿度老化等可靠性测试,广泛应用于国内外消费电子、汽车电子厂商,市场验证可靠。

总结:BAV70以“高速、低损耗、小封装、集成化”为核心优势,是低功耗高频开关场景的高性价比选择,可有效简化电路设计、提升系统效率与可靠性。

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