WMSIC Electronic Components

FUXINSEMI 1N4148TR

Model1N4148TR
PackageDO-35
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 1N4148TR
Type
FUXINSEMI
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
FUXINSEMI
Electronic Component
1N4148TR
Electronic Component
1
Package
DO-35
Electronic Component
Switch Diode
Electronic Component
0.133g
Electronic Component
1
Electronic Component
BM0265156910
Current
150mA
Diode
Electronic Component
Current(Ir)
5uA@75V
(Vf)
1V@10mA
Power Dissipation(Pd)
500mW
Electronic Component
55℃~+150℃@(Tj)
Electronic Component
Electronic Component

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

1N4148TR开关二极管产品概述

一、产品基本定位与核心属性

1N4148TR是FUXINSEMI(富芯森美) 推出的独立式开关二极管,采用DO-35轴向引线封装,属于通用型高频开关器件。作为经典开关二极管的实用衍生型号,其设计核心围绕「快速开关响应」与「低功耗导通」展开,兼顾小信号整流、过压保护等多元需求,是电子电路中高频信号处理、小功率电源及基础保护的常用器件。

二、关键电气性能参数解析

1. 正向导通特性

正向压降(Vf)典型值为1V@10mA,属于低导通压降范畴——相比普通整流二极管(如1N4007的Vf≈1.2V@1A),在mA级小电流场景下可显著降低导通损耗,适配低功耗电路的信号传输与小电流整流需求。

2. 反向耐压与漏电流

  • 直流反向耐压(Vr)达100V,满足多数低中压电路的反向隔离要求;
  • 反向电流(Ir)仅5μA@75V,漏电流极小,可减少反向漏电导致的功耗浪费,提升精密电路的稳定性。

3. 电流与功率承载能力

  • 平均整流电流(直流正向电流)为150mA,可支撑5V/100mA级小功率电源的整流;
  • 最大耗散功率(Pd)为500mW,连续工作时需注意散热(如避免密集布局),防止结温过高;
  • 非重复峰值浪涌电流(Ifsm)达2A,可承受电源上电瞬间的脉冲冲击,提升电路抗干扰能力。

4. 开关响应特性

反向恢复时间(Trr)仅4ns,这是开关二极管区别于普通整流管的核心指标——短恢复时间意味着在MHz级高频场景(如信号调制、脉冲整形)中,二极管能快速从导通切换至截止,避免信号延迟或失真。

5. 温度适应性

工作结温范围覆盖**-55℃~+150℃**,符合工业级器件的宽温要求,可稳定工作于户外设备、车载电子等极端环境,无需额外降额使用。

三、封装与物理特性

1N4148TR采用DO-35轴向引线封装,具备以下优势:

  • 体积小巧:轴向插件设计,引脚间距紧凑,适配高密度PCB布局;
  • 安装便捷:支持手工焊接与波峰焊,无需特殊工具即可批量组装;
  • 机械可靠:封装材料耐温、抗冲击,可适应振动环境(如车载、工业控制场景)。

四、典型应用场景

1. 高频开关电路

凭借4ns短恢复时间,适用于信号调制、脉冲整形、高速逻辑接口(TTL/CMOS)等场景,避免高频信号失真。

2. 小信号整流电路

150mA平均电流+100V反向耐压,可满足智能穿戴、传感器模块等低功耗设备的小功率整流需求,替代部分高成本专用器件。

3. 过压/静电保护

100V反向耐压+2A浪涌能力,可用于ESD静电保护、电源过压钳位,防止电路因瞬间过压/过流损坏。

4. 信号钳位与整形

1V正向压降适配3.3V/5V逻辑信号的钳位,将信号幅度限制在安全范围,避免后级电路过载。

五、产品优势与市场定位

  1. 性能均衡:短恢复时间、宽温范围、低漏电流等参数兼顾高频与低功耗需求,覆盖工业级与消费级市场;
  2. 成本效益:FUXINSEMI国产化替代方案,性价比优于部分进口品牌,适合批量应用;
  3. 可靠性:宽温设计与浪涌能力可应对复杂工况,降低电路故障率。

1N4148TR以其「快速开关+宽温适应+低损耗」的综合优势,成为电子设计中高频信号处理、小功率电源及基础保护的实用选择。

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