WMSIC Electronic Components

Jingdao Microelectronics 1N4148HS

Model1N4148HS
PackageSOD-323HE
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Electronic 1N4148HS
Type
Jingdao Microelectronics
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic
Electronic Component
1N4148HS
Electronic Component
1
Package
SOD-323HE
Electronic Component
Switch Diode
Electronic Component
0.028g
Electronic Component
1
Electronic Component
BM0230144446
Current
150mA
Diode
1
Current(Ir)
1uA@75V
(Vf)
1.25V@150mA
Power Dissipation(Pd)
400mW
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.

1N4148HS 产品概述

一、简介

1N4148HS 是晶导微电子推出的一款高速开关二极管,采用小型 SOD-323HE 封装,面向空间受限的高速信号与保护电路。该器件在 150mA 工作电流下正向压降仅为 1.25V,反向漏电流极小,反向恢复时间仅 4ns,适合高频开关与脉冲应用。

二、主要参数

  • 正向压降 (Vf):1.25V @ 150mA
  • 直流反向耐压 (Vr):100V
  • 最大整流电流:150mA(连续)
  • 非重复峰值浪涌电流 (Ifsm):1A
  • 耗散功率 (Pd):400mW
  • 反向电流 (Ir):1μA @ 75V
  • 反向恢复时间 (Trr):4ns
  • 工作结温范围:-55℃ ~ +150℃(Tj)

三、电气特性解读

1N4148HS 在 150mA 条件下 Vf≈1.25V,适用于中小电流级的开关场景。100V 的反向耐压提供了充足的安全裕量,可用于 12V/24V 系统及更高电压的信号隔离场合。Ir=1μA(75V)代表低漏电,适合高阻抗和精密模拟电路。Trr=4ns 表示器件可胜任 MHz 级别的开关频率与窄脉冲处理。

四、典型应用场景

  • 高速逻辑与门阵列的整流/钳位
  • 信号整形、脉冲成形与采样保持电路
  • 反向极性保护与方向导通(低功耗)
  • 高频开关电路、混频器与检波电路
  • 便携式与消费电子中对体积与速度有要求的保护元件

五、电路与 PCB 布局建议

SOD-323HE 为微型封装,热阻相对较大。建议:

  • 避免在接近最大额定电流和耗散功率下长时间连续工作;必要时采用散热铜箔或加大焊盘面积以降低结温。
  • 高频走线尽量短且阻抗匹配,减少寄生电感与电容以维持快速恢复性能。
  • 封装上通常以端带标识阴极,设计时注意极性方向。

六、可靠性与使用注意

  • 峰值浪涌 1A 为短时能力,连续应用应严格限制在 150mA 内并留有裕度。
  • 在高电压或高温工作时,应参考晶导微电子的完整数据手册进行结温与功率降额计算。
  • 采用回流焊时遵循通用焊接温度曲线与厂家推荐工艺以保证可靠焊接。

七、封装与订购信息

型号:1N4148HS
品牌:晶导微电子
封装:SOD-323HE(微型表面贴装)
订购时请确认完整料号与包装形式(卷带/管装),并索取最新数据手册以获取电气曲线、热阻与回流焊工艺详情。

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