WMSIC Electronic Components

JSMSEMI BAV70

ModelBAV70
PackageSOT-23
BrandJSMSEMI
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
JSMSEMI BAV70
Type
JSMSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JSMSEMI
Electronic Component
BAV70
Electronic Component
1
Package
SOT-23
Electronic Component
Switch Diode
Electronic Component
0.057g
Electronic Component
1
Electronic Component
BM0227639676
Current
200mA
Diode
1
Current(Ir)
2.5uA@70V
(Vf)
1.25V@150mA
Electronic Component
55℃~+150℃
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 产品概述

一、概述

BAV70 是一款小体积、高速开关二极管,JSMSEMI(杰盛微)出品,采用 SOT-23 表面贴装封装,内部为一对共阴极(双二极管共阴)结构。器件针对高速信号处理与小功率整流场景优化,具备低正向压降、快速恢复与较小反向漏电的特性,适用于通信、信号整形、限幅与电平移位等多种应用场景。

二、主要电气参数

  • 工作结温范围:-55℃ ~ +150℃,适应宽温度环境。
  • 正向压降 (Vf):1.25V @ 150mA,低压降有利于减小信号失真与功耗。
  • 直流整流电流:200mA,适合小功率整流与开关应用。
  • 非重复峰值浪涌电流 (Ifsm):500mA,可承受短时浪涌冲击但不适合长期大电流负载。
  • 直流反向耐压 (Vr):70V,可用于中等阻断电压场合的反向保护。
  • 反向电流 (Ir):2.5μA @ 70V,漏电小,有利于高阻抗电路与模拟信号链。
  • 反向恢复时间 (Trr):6ns,恢复快,适合高频开关与脉冲信号处理。

三、封装与引脚信息

器件采用 SOT-23 封装,体积小、便于表面贴装和自动化生产。内部为一对共阴极二极管(Common Cathode),便于构成双路开关、前置限幅或双向信号钳位等电路。SOT-23 封装有利于节省 PCB 面积,适配移动设备与紧凑式电子模块。

四、典型应用场景

  • 高频/高速开关与脉冲整形电路:6ns 的反向恢复时间适合对速度有要求的开关、门电路及逻辑接口。
  • 信号钳位、限幅与采样电路:共阴结构便于实现双路对称限幅或差分信号保护。
  • 小功率整流与反向保护:200mA 直流整流电流与 70V 阻断电压适合小功率电源与保护路径。
  • 模拟前端与接口电路:低反向漏电利于高阻抗输入、CMOS/TTL 接口及传感器前端应用。
  • 通信与射频前端的开关矩阵(非高功率)和混合信号处理。

五、选型与设计建议

  • 若电路中长期工作电流接近或超过 200mA,应选用额定电流更高的器件以保证可靠性。
  • 在开关/脉冲应用中关注封装散热及 PCB 走线,尽量缩短热阻与电感路径,避免寄生导致的振铃。
  • 对于高温工作环境(靠近 150℃),需评估器件的长期漂移与热循环可靠性。
  • 若电路对反向漏电极为敏感,应留有裕量,测试实际系统温度下的 Ir 值。
  • 浪涌保护仅限短时 Ifsm 500mA,若需承受连续或更大冲击,应并联或选择浪涌能力更强的器件。

六、可靠性与注意事项

  • SOT-23 为常用 SMT 封装,推荐按照常规回流焊工艺进行贴装,遵循厂家封装与回流温度限制(参考生产商工艺文档)。
  • 存储与使用中避免超出规格的反向电压与浪涌电流,以防结点击穿或热失效。
  • 在高频应用中,应做好去耦与阻抗匹配,减少寄生电容与电感对信号的影响。
  • 芯片生产批次、封装与标记请以 JSMSEMI 官方出货为准,量产时建议索取完整数据手册与可靠性测试报告。

总结:JSMSEMI 的 BAV70(SOT-23、1 对共阴极)以其低 Vf、快速恢复、较低漏电与中等耐压特性,适合高速开关、信号限幅与小功率整流等场合。在选型与实际应用时需关注电流与热管理限制,以保证长期稳定运行。若需更详细的封装图、引脚定义或热特性,请参考厂方完整数据手册或联系供应商获取样品测试数据。

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