WMSIC Electronic Components

Jingdao Microelectronics BAT54A

ModelBAT54A
PackageSOT-23
BrandElectronic
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

13 specifications

Core information

Product name
Electronic BAT54A
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
BAT54A
Electronic Component
1
Package
SOT-23
Electronic Component
0.033g
Electronic Component
1
Electronic Component
BM0265794243
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.

BAT54A肖特基二极管产品概述

一、产品基本定位与核心属性

BAT54A是晶导微电子推出的1对共阳极肖特基二极管,采用SOT-23小型贴片封装,属于小信号功率器件范畴。其核心设计围绕「低正向压降、快速开关速度」展开,适配低压、小电流场景下的整流、续流及保护需求,是便携电子、低压电源等领域的常用基础器件。

二、关键电气参数详解

该器件的电气参数精准定义了性能边界,核心参数及实际意义如下:

(1)正向导通特性:低损耗适配低功耗场景

  • 正向压降(Vf):1V@100mA(典型值)。相比普通硅二极管(正向压降约0.7V?注:此处为该型号实测典型值),低压降可显著降低导通损耗,尤其适合电池供电设备(如智能穿戴),减少电源热损耗。
  • 直流整流电流(If):200mA(连续值)。支持持续通过200mA以内的正向电流,满足小功率电路(如5V/12V电源)的基本整流需求。

(2)反向特性:稳定耐压与低漏电流

  • 直流反向耐压(Vr):30V。可承受最高30V反向电压不击穿,适配低压电源(如USB供电、12V车载系统)的反向防护。
  • 反向漏电流(Ir):2μA@25V(25℃时)。漏电流极小,可有效降低电路静态功耗,适合对功耗敏感的物联网终端、低功耗传感器等场景。

(3)耐环境与浪涌能力

  • 非重复峰值浪涌电流(Ifsm):600mA(脉冲宽度≤10ms)。能承受瞬间脉冲电流冲击,避免电路突发电压尖峰(如开关切换时)导致器件损坏。
  • 工作结温范围:-40℃~+125℃。覆盖工业级宽温环境,可在极端温度下稳定工作,适配户外设备、车载电子等场景。

三、封装与物理特性

BAT54A采用SOT-23封装,具备三大优势:

  1. 小型化:封装尺寸约2.9×1.6×1.1mm,大幅节省PCB空间,适合高密度设计(如智能手表、蓝牙耳机);
  2. 自动化兼容:贴片式结构适配SMT自动化贴装,提升生产效率,降低人工成本;
  3. 引脚定义清晰:共阳极设计(引脚1/3为阳极,引脚2为公共阴极),便于电路设计与焊接验证。

四、典型应用场景

结合肖特基二极管「快速开关、低损耗」的核心特性,BAT54A的典型应用包括:

  1. 低压小信号整流:5V/12V电源适配器次级整流、电池充电电路整流环节,降低导通损耗;
  2. 续流二极管:开关电源(DC-DC降压模块)、小型电机驱动电路的续流,利用快速开关特性减少反向恢复时间,提升电路效率;
  3. 过压钳位保护:信号电路的过压防护(如音频输入、传感器接口),配合稳压管可有效抑制电压尖峰;
  4. 便携电子设备:智能手机、平板电脑、智能穿戴的电源管理、信号处理电路,适配小型化需求。

五、品牌与可靠性说明

晶导微电子作为国内功率半导体领域的主流厂商,BAT54A经过严格可靠性测试(温度循环、湿度老化、电应力测试等),符合RoHS环保标准,可满足消费电子、工业控制等领域的可靠性要求。其宽温工作范围与浪涌耐受能力,进一步提升了复杂环境下的稳定性。

六、选型与使用注意事项

  1. 型号区分:需注意与共阴极肖特基对管(如BAT54C)的差异,避免引脚连接错误;
  2. 参数边界:正向电流不超200mA(连续)、反向电压不超30V、浪涌电流不超600mA(脉冲),避免过应力损坏;
  3. 焊接工艺:SOT-23封装焊接温度建议≤260℃,焊接时间≤5s,避免热损伤;
  4. 散热考虑:持续大电流工作时,需保证PCB布局的散热路径(如增加铜箔面积),避免结温过高。

综上,BAT54A凭借低损耗、快速开关、小型化等优势,成为低压小功率电路的高性价比选择,广泛适配消费电子、工业控制等多领域需求。

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