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1N4148WX
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YONGYUTAI 1N4148WX
- Type
- YONGYUTAI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- YONGYUTAI
- Electronic Component
- 1N4148WX
- Electronic Component
- 1
- Package
- SOD-323
- Electronic Component
- Switch Diode
- Electronic Component
- 0.027g
- Electronic Component
- 1
- Electronic Component
- BM0264770670
- Current
- 150mA
- 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.
1N4148WX 产品概述
一、产品简介
1N4148WX 是永裕泰（YONGYUTAI）出品的一款独立式开关二极管，采用 SOD-323 小型贴片封装，专为高速信号开关与小功率整流场合设计。器件在结温范围 -55℃ 至 +150℃ 下可靠工作，适配紧凑电路板与批量自动化贴装的需求。
二、主要电气参数
- 耗散功率 (Pd)：400 mW
- 最大整流电流：150 mA
- 直流反向耐压 (Vr)：75 V
- 正向压降 (Vf)：1.25 V @ 150 mA
- 反向电流 (Ir)：1 μA @ 75 V
- 反向恢复时间 (Trr)：4 ns
这些参数表明该器件在中等电流与高压反向条件下仍能保持低漏电与快速切换特性。
三、核心特性与优势
- 高速切换：4 ns 的反向恢复时间适合高频开关、脉冲信号路径中的快速响应要求。
- 低反向泄漏：1 μA @ 75 V 的低漏电流使其在高阻态或高阻抗输入端表现优异，减少漏电功耗。
- 中等功率承受能力：400 mW 的耗散功率和 150 mA 的整流电流满足常见小功率整流或信号整形应用。
- 紧凑封装：SOD-323 封装体积小、适合空间受限设计与表面贴装工艺。
- 宽温度范围：-55℃~+150℃ 的工作温度保证在工业级环境下的可靠性。
四、典型应用场景
- 高速逻辑电路的开关保护与恢复路径
- 小信号整流、脉冲整形与波形钳位
- 射频/通信前端的开关和隔离（低功率信号链路）
- 自动化仪表、消费电子、汽车辅助电路中作为保护或切换元件
- PCB 上作保护二极管或反向保护，配合限流电阻使用
五、封装与使用注意
- 封装：SOD-323，小型贴片，适合回流焊工艺。
- 焊接建议：遵循元件供应商的回流焊温度曲线，避免超温或长时间高温暴露以防止封装应力和性能退化。
- 热管理：由于 Pd 为 400 mW，需在 PCB 设计中为二极管留出合适的散热走线或铜箔，以避免热积累影响寿命。
- 极性标识：安装时注意阴极标记（通常为端带标识），避免反向安装导致功能失效。
- 静电防护：在搬运与贴装过程中应采取 ESD 防护措施，保护器件免受静电击穿。
六、替代与选型建议
在需要同等封装与类似性能时，可考虑 1N4148 系列的其它封装或同类高速开关二极管（如 1N914、SOD-323 封装的等效型号）。选型时应关注关键参数：反向耐压、反向恢复时间、正向压降与最大耗散功率，以确保在实际工作点下满足可靠性要求。
七、总结
1N4148WX 以其快速的恢复时间、较低的反向泄漏和紧凑的 SOD-323 封装，适用于高速信号开关与小功率整流应用。合理的 PCB 布局与温度管理能充分发挥其性能，是工业、通信与消费电子等领域中常用的通用开关二极管选型之一。
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