Model & package intelligence
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MSKSEMI SMMSD4148T1G-MS SMMSD4148T1G
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI SMMSD4148T1G-MS
- Type
- MSKSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MSKSEMI
- Electronic Component
- SMMSD4148T1G-MS
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Switch Diode
- Electronic Component
- 0.039g
- Electronic Component
- 1
- Electronic Component
- BM0264464065
- Current
- 150mA
- Diode
- 1
- Power Dissipation(Pd)
- 400mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage Rating(Vr)
- 75V
- (Trr)
- 4ns
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SMMSD4148T1G-MS 产品概述
一、产品简介
SMMSD4148T1G-MS 是美森科（MSKSEMI）推出的一款高频信号开关二极管，采用 SOD-123 小封装，单只独立式器件。它具有快速开关响应、低正向压降和良好的耐压能力，适合在高频信号处理与开关场景中替代传统的小信号二极管，体积小、功耗低、易于表面贴装。
二、主要参数
- 器件类型：单只独立式信号开关二极管（SMD）
- 封装：SOD-123
- 最大耗散功率 (Pd)：400 mW
- 整流电流（IF）：常见标称值 150 mA（描述中可见 200 mA 的规格版本，实际应用请参照最终元器件数据表）
- 直流反向耐压（VR）：常见值 75 V（部分资料显示可达 100 V，出货前请以供应商数据表为准）
- 反向恢复时间（Trr）：约 4 ns
- 特性：快速开关、低正向压降、低反向泄漏
三、特性与优势
- 快速开关：Trr ≈ 4 ns，适合高频开关与脉冲信号场合，能有效减少开关损耗与串扰。
- 低正向压降：在信号线路中降低功耗和热量积累，有利于提高系统效率。
- 小体积封装：SOD-123 便于表面贴装加工，节省 PCB 面积，适合消费电子和便携设备。
- 耐压与功率平衡：在小封装下提供较高的耐压等级与 400 mW 的功耗能力，适用于常见信号整流与钳位应用。
四、典型应用
- 高频信号处理电路：限幅、钳位、信号整形与保护。
- 高频开关电路与混合信号前端：快速切换与脉冲整形。
- 逻辑门电路与接口保护：作为电平钳位、反向保护元件使用。
- 消费电子：移动设备、手持终端、电视、机顶盒等的信号链路与保护电路。
五、封装与可靠性
SOD-123 小型表面贴装封装便于自动化贴片和回流焊工艺，热阻和散热能力在同类封装中表现稳定。为保证长期可靠性，推荐在 PCB 设计中为二极管留出适当的铜箔面积以改善散热，并遵循制造商的回流焊温度曲线。
六、布局与使用建议
- 在高频路径上尽量缩短引线长度，降低寄生电感与阻抗；
- 对于重复脉冲或高占空比工作，应评估平均功耗并保证旁路/散热设计满足 400 mW 耐受；
- 若电路对反向耐压极限敏感，请以供应商数据表的 VR 指定值（75 V 或 100 V）为准并留有安全裕量；
- 存储与搬运避免静电与潮湿，贴片前按厂家建议进行烘烤或干燥处理。
七、订购信息与品牌说明
器件型号：SMMSD4148T1G-MS，品牌：MSKSEMI（美森科），封装：SOD-123。型号尾缀“-MS”为美森科品牌标识。采购时请确认供货批次和数据手册以获得最终电气参数与封装物料表（BOM）信息。
如需更详细的电气特性曲线、典型波形或选型对比，我可以根据您的应用场景提供进一步建议。
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