WMSIC Electronic Components

SHIKUES 1N4148WSG

Model1N4148WSG
PackageSOD-323G
BrandSHIKUES
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
SHIKUES 1N4148WSG
Type
SHIKUES
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SHIKUES
Electronic Component
1N4148WSG
Electronic Component
1
Package
SOD-323G
Electronic Component
Switch Diode
Electronic Component
0.029g
Electronic Component
1
Electronic Component
BM0248816296
Current
300mA
Diode
Electronic Component
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.

1N4148WSG 产品概述

一、产品简介

1N4148WSG 是 SHIKUES(时科)出品的一款小信号开关二极管,采用 SOD-323G 小型贴片封装,属于独立式(单个)器件。该器件设计用于高速开关和信号整流场合,兼顾耐压与低正向压降,适合空间受限的表面贴装电路。

二、主要电气参数

  • 二极管配置:独立式
  • 正向压降 Vf:1.25V @ 150mA
  • 直流反向耐压 Vr:100V
  • 整流电流(Io):300mA
  • 峰值浪涌电流 Ifsm(非重复):4A
  • 耗散功率 Pd:400mW
  • 反向电流 Ir:1µA @ 75V
  • 反向恢复时间 Trr:8ns
  • 工作结温范围 Tj:-55℃ ~ +150℃

三、封装与物理特性

器件采用 SOD-323G 超小型表贴封装,体积小、焊接方便,适合高密度电路板设计。封装热阻与功耗限制使其更适合小信号与低功耗场合,建议在布局时为其留出适当散热路径。

四、性能亮点

  • 高耐压:100V 的反向耐压使其可用于较高电压的保护与整流应用。
  • 低反向漏电流:1µA@75V,利于高阻抗信号链和精密模拟电路。
  • 快速恢复:8ns 的反向恢复时间适合高速开关和逻辑级信号切换。
  • 抗浪涌能力:4A 非重复峰值浪涌,能抵御瞬态冲击,提高可靠性。

五、典型应用场景

  • 高频开关与脉冲整形电路
  • 数字逻辑保护、输入钳位和电平转换
  • 小信号整流与检波器
  • 耐压要求较高的保护电路(如反向保护、钳位)
  • 移动设备、通信设备、仪器仪表等紧凑型电子产品

六、选型与使用建议

  • 若工作电流长时间接近 150mA,需要关注器件的温升与热散逸,保证环境温度和 PCB 散热设计满足 Pd 限值。
  • 在高频或高速度切换应用,应结合实际波形验证 Trr 对电路的影响,必要时在电路中增加缓冲或 RC 抑制网络以减少电磁干扰。
  • 对于精密模拟或电池供电设备,反向漏电流特性有利于降低静态功耗,但在高温下漏电流会增加,应在最坏工况下评估电路性能。
  • 采用 SOD-323G 时,焊接遵循相应回流温度曲线,避免超温引起封装或性能退化。

七、可靠性与采购信息

SHIKUES(时科)品牌保证出厂测试与参数一致性,SOD-323G 封装适合SMT 生产线。采购时确认批次、规格书和存储条件,避免潮湿造成的焊接问题。若有更高电流或更低正向压降的需求,可考虑并联或选择更大封装/型号以满足热与电流要求。

以上概述基于器件关键参数与典型应用,便于工程师在电路设计与选型阶段快速判断 1N4148WSG 的适用性与限制。若需封装尺寸图、典型电路示意或温度特性曲线,可进一步提供详表支持设计验证。

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