WMSIC Electronic Components

TWGMC BAT54H Schottky Diode BAT54H

ModelBAT54H
PackageSOD-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 BAT54H
Type
TWGMC
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
TWGMC
Electronic Component
BAT54H
Electronic Component
1
Package
SOD-323
Electronic Component
Schottky Diode
Electronic Component
0.027g
Electronic Component
1
Electronic Component
BM0265082580
Current
200mA
Diode
1
Current(Ir)
2uA@25V
(Vf)
800mV@100mA
Electronic Component
Electronic Component
Electronic Component
3000
Voltage Rating(Vr)
30V

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

BAT54H 开关二极管产品概述

BAT54H是台湾迪嘉(TWGMC)推出的高速开关二极管,采用超小型SOD-323表面贴装封装,凭借低功耗、高可靠性的特性,广泛应用于便携电子、通信设备等低功率场景。以下从核心参数、品牌封装、应用场景及使用注意事项四个维度展开详细概述。

一、核心参数详解

BAT54H的电气参数经过严格测试,关键指标明确适配小功率电路需求:

  1. 正向压降(Vf):800mV@100mA,即正向导通电流为100mA时,两端电压降仅0.8V,远低于普通整流二极管(通常1V以上),可有效降低导通损耗,提升电路效率;
  2. 直流反向耐压(Vr):30V,是二极管反向截止时能承受的最大电压,满足多数低压信号电路和小功率电源的耐压需求;
  3. 持续整流电流(If):200mA,为常温下可持续工作的最大正向电流,适用于小电流电源整流、信号开关等场景;
  4. 反向漏电流(Ir):2uA@25V,反向电压25V时漏电流仅2微安,低漏电流特性可避免反向漏电对模拟信号处理等电路的干扰;
  5. 非重复峰值浪涌电流(Ifsm):600mA,是单次最大正向浪涌电流(持续时间≤10ms),可抵御电路瞬间过流冲击,提升可靠性。

二、品牌与封装特性

2.1 品牌背景

TWGMC(台湾迪嘉)是专注于半导体分立器件的台系厂商,产品以高一致性、低功耗为核心优势,广泛服务于消费电子、汽车电子(部分系列)等领域。BAT54H作为其经典型号,经过长期市场验证,品质稳定可靠。

2.2 封装特点

BAT54H采用SOD-323超小型表面贴装封装,尺寸约1.6mm×0.8mm×0.6mm(长×宽×高),具备三大优势:

  • 节省PCB空间:适配智能手机、智能手环等小型化设备的高密度布线;
  • 自动化生产适配:贴片式封装可通过SMT快速焊接,提高生产效率;
  • 散热满足小功率需求:优化的封装结构可有效散发热量,适配≤200mA的持续工作电流。

三、典型应用场景

结合参数特性,BAT54H主要应用于以下低功耗场景:

  1. 小功率电源整流:如蓝牙耳机、智能手表的充电电路,将交流电压转换为直流,200mA持续电流满足这类设备的充电需求;
  2. 信号钳位保护:在模拟/数字信号链路中,通过正向导通限制信号峰值(如防止音频信号过冲),反向30V耐压避免信号过高损坏后级电路;
  3. 静电放电(ESD)防护:在USB、耳机接口等电路中,利用反向击穿特性快速泄放静电,保护敏感元器件;
  4. 逻辑电路开关控制:在低功耗MCU的I/O口电路中,作为开关元件实现信号通断,低正向压降减少信号损耗;
  5. 续流二极管:用于智能门锁微型电机等小功率直流电机的续流电路,防止电机关断时的反向电动势损坏驱动电路。

四、性能优势与使用注意事项

4.1 核心优势

  • 低功耗适配:低正向压降+低反向漏电流,减少电路整体功耗,适配电池供电设备;
  • 可靠性突出:600mA非重复浪涌电流抵御瞬间过流,30V反向耐压覆盖多数低压场景;
  • 小型化兼容:SOD-323封装支持设备轻薄化设计,符合消费电子趋势。

4.2 注意事项

  1. 电流限制:持续工作电流不得超过200mA,过载需并联多只或更换高电流型号;
  2. 电压限制:反向电压不得超过30V,避免击穿损坏;
  3. 浪涌限制:600mA为非重复峰值,不可连续出现浪涌;
  4. 焊接要求:焊接温度≤260℃,时间≤10秒,避免高温损伤;
  5. 存储环境:存储温度-55℃~150℃,保持干燥,防止引脚氧化。

综上,BAT54H是一款性能均衡的开关二极管,凭借TWGMC的品质保障和紧凑封装,成为消费电子、通信设备等领域的常用选型。

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