WMSIC Electronic Components

FUXINSEMI BAS70-04 BAS70

ModelBAS70-04
PackageSOT-23(TO-236)
BrandFUXINSEMI
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
FUXINSEMI BAS70-04
Type
FUXINSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
BAS70-04
Electronic Component
1
Package
SOT-23(TO-236)
Electronic Component
Schottky Diode
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0265332226
Current
70mA
Current(Ir)
100nA@50V
(Vf)
1V@15mA
Electronic Component
40℃~+125℃
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
70V

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

BAS70-04 开关二极管产品概述

BAS70-04是国内半导体厂商富芯森美(FUXINSEMI)推出的一款小信号开关二极管,采用SOT-23(TO-236)表面贴装封装,主打低功耗、小体积、宽温适应性,适用于大多数低电流、低电压的电子电路设计。作为针对便携设备、智能穿戴、通信模块等场景优化的器件,其核心参数与可靠性设计围绕“小型化+稳定性”展开,是替代进口同类产品的经济适用型选择。

一、产品定位与核心应用场景

BAS70-04定位于小信号开关/整流专用器件,并非大功率整流管,应用场景集中在电流需求不高(≤70mA直流)、电压范围适中(≤70V反向)的电路中,典型应用包括:

  1. 便携电子设备:智能手机、蓝牙耳机、智能手表的电源管理模块(微弱电流整流)、按键扫描电路(信号隔离);
  2. 智能穿戴与IoT终端:心率/血氧传感器的信号调理电路(低漏电流整流,避免信号失真);
  3. 小型通信模块:低功耗蓝牙(BLE)、WiFi模块的射频信号隔离电路;
  4. 工业辅助电路:户外传感器接口(依托-40℃~+125℃宽温范围,适配极端环境)。

需注意:该器件不适合大功率整流(如电源适配器、电机驱动),仅适用于小信号级别的开关与整流需求。

二、关键电气性能参数详解

BAS70-04的核心参数围绕“低功耗、高可靠性”设计,具体如下:

  • 正向压降(Vf):1V@15mA
    15mA典型工作电流下,正向导通压降为1V,处于同类器件合理区间——既避免压降过高导致便携设备续航缩短,又保证导通稳定性,适配功耗敏感场景。
  • 直流反向耐压(Vr):70V
    反向截止电压达70V,可满足5V/12V电源整流隔离、信号线路反向保护等需求,无需额外增加高压器件。
  • 整流电流(直流):70mA
    连续直流电流上限为70mA,应用中需避免超过该值,否则可能因结温过高导致性能下降。
  • 反向漏电流(Ir):100nA@50V
    50V反向电压下漏电流仅100nA,属于极低水平,可减少传感器微弱模拟信号的失真,适合精密电路设计。
  • 工作结温范围:-40℃~+125℃
    宽温覆盖户外/工业极端温度(冬季低温、夏季高温),可在车载低功耗模块、户外传感器等场景稳定工作。
  • 非重复峰值浪涌电流(Ifsm):100mA
    单次脉冲浪涌上限为100mA,虽能应对轻微瞬态过流,但需配合限流电阻或TVS管,避免大电流冲击损坏。

三、封装与可靠性设计

BAS70-04采用SOT-23(TO-236)表面贴装封装,尺寸约2.9mm×1.6mm×1.1mm,优势显著:

  1. 小型化适配:兼容高密度PCB设计,满足智能手表等便携设备的“轻薄化”需求;
  2. 贴装便捷:适配常规SMT生产线,无需特殊设备,降低生产难度;
  3. 散热辅助:结合125℃最高结温,可通过PCB铜箔辅助散热,满足长期工作需求。

此外,器件反向漏电流低、宽温稳定,经批量测试可保证1000小时以上长期工作寿命(典型场景下)。

四、品牌与市场适配性

富芯森美(FUXINSEMI)作为国内小信号器件厂商,产品以“高性价比、参数兼容进口”为核心竞争力:

  • 参数兼容:与进口BAS70系列器件参数一致,可直接替代,无需修改电路;
  • 成本优势:价格较进口品牌低20%-30%,适合中小批量生产企业控制成本;
  • 本地化服务:提供快速样品支持与技术咨询,适配国内客户研发生产需求。

该器件已在消费电子、IoT终端、工业控制等领域批量应用,验证了稳定性与适配性。

总结

BAS70-04凭借SOT-23封装的小型化、100nA低漏电流的精密性、宽温适应性,以及FUXINSEMI的性价比优势,成为便携设备、智能穿戴、通信模块等场景的优选器件。其核心价值在于“平衡性能与成本”,既满足小信号电路基本需求,又降低终端研发与生产成本,是替代进口同类产品的可靠选择。

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