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YONGYUTAI 1N4448WS
Configuration
1 options
Configuration
23+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI 1N4448WS
- Type
- YONGYUTAI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- 1N4448WS
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Switch Diode
- Electronic Component
- 0.029g
- Electronic Component
- 1
- Electronic Component
- BM0226337749
- Current
- 150mA
- Diode
- 1
- Current(Ir)
- 2.5uA@75V
- (Vf)
- 1.25V@150mA
- Power Dissipation(Pd)
- 500mW
- 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.
1N4448WS 产品概述
一 产品简介
1N4448WS 是永裕泰（YONGYUTAI）出品的一款小信号开关二极管，采用 SOD-323 表面贴装封装，适用于高频开关和小电流整流场合。器件体积小、开关速度快，常用作信号整流、钳位、保护与切换电路中的通用二极管。
二 主要电气参数
- 正向压降（Vf）：1.25V @ IF = 150mA
- 直流反向耐压（Vr）：75V
- 反向电流（Ir）：2.5µA @ Vr = 75V
- 非重复峰值浪涌电流（Ifsm）：2A
- 典型整流电流：150mA（连续）
- 反向恢复时间（Trr）：4ns
- 耗散功率（Pd）：500mW
三 关键特性
- 低正向压降：在 150mA 条件下 Vf≈1.25V，有利于降低小信号链路的压降。
- 快速恢复：Trr≈4ns，适合高频开关与脉冲应用，减小开关损耗与反向恢复引起的干扰。
- 高反向耐压：Vr=75V，可用于中低电压控制与保护场景。
- 低漏电流：Ir=2.5µA 在最大反压下漏电小，有利于高阻抗或待机电路的功耗控制。
四 典型应用
- 高频信号整流与检波
- 逻辑电平切换与保护钳位
- 通信设备、传感器前端的保护与整流
- 便携式电子与消费类产品的低功耗电路
- 作为替代 1N4148 型快恢复二极管的 SMD 选项
五 封装与热性能
SOD-323 小封装便于高密度贴装，但散热能力有限，最大耗散功率约 500mW。设计时应注意 PCB 铜箔散热，避免长时间在高电流或大电压降下工作，以防器件过热影响寿命。
六 使用与注意事项
- 不适合大功率整流或持续高电流场合（IF 连续 ≤150mA）。
- 在脉冲浪涌（Ifsm）下短时承受 2A，但需遵循脉冲宽度和频率限制。
- 贴片回流焊时遵循厂家推荐温度曲线，避免超温造成封装或焊点损伤。
- 对静电敏感，装配与测试过程中做好 ESD 防护。
七 可靠性与选型建议
对于需要小体积、快速响应且反向耐压在 75V 以内的低功耗电路，1N4448WS 是性价比较高的选择。若电流或功耗需求更高，应考虑更大封装或专用功率整流器件。选型时同时参考器件的温度特性曲线与实际工作环境，确保可靠运行。
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