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ON MMSD4148T3G
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ON MMSD4148T3G
- Type
- ON
- Unit
- Electronic Component
- Minimum package
- 10000
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ON
- Electronic Component
- MMSD4148T3G
- Electronic Component
- 1
- Package
- SOD-123
- Electronic Component
- Switch Diode
- Electronic Component
- 0.036g
- Electronic Component
- 1
- Electronic Component
- BM0058432156
- Current
- 200mA
- Diode
- Electronic Component
- Current(Ir)
- 5uA@75V
- (Vf)
- 1V@10mA
- Power Dissipation(Pd)
- 425mW
- Electronic Component
- 55℃~+150℃@(Tj)
- Electronic Component
- 10000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MMSD4148T3G 产品概述
一、产品简介
MMSD4148T3G 是安森美（ON Semiconductor）推出的一款独立式开关二极管，封装为 SOD-123，专为高频开关与小信号整流场合设计。器件具有低正向压降和快速反向恢复时间，适用于脉冲信号、开关转换及保护电路中作为通用开关二极管使用。
二、主要电气参数
- 正向压降 Vf：1.0V @ IF = 10mA
- 直流整流电流 IO：200mA（连续）
- 非重复峰值浪涌电流 Ifsm：2A（脉冲、短时）
- 反向耐压 VR：100V
- 反向电流 IR：≤5µA @ VR = 75V
- 反向恢复时间 Trr：4ns（典型快速恢复）
- 耗散功率 Pd：425mW（在规定条件下）
- 工作结温范围：-55℃ ~ +150℃（Tj）
三、封装与机械特性
器件采用 SOD-123 小型贴片封装，便于自动贴装和波峰/回流焊工艺。SOD-123 提供比传统 axial 封装更小的占板面积和更好的热传导路径，器件极性通过封装标识清晰可见，适合空间受限的便携、消费类及工业电子设备。
四、典型应用场景
- 高速开关与脉冲整形电路
- 逻辑电平保护与输入钳位
- 高频检测与混频电路的信号整流
- 电源反向保护与浪涌抑制（需配合适当退让设计）
- 便携式消费电子、通讯设备、仪表及工业控制模块
五、选型与使用建议
- 在高温或长时间连续工作场合应进行功耗退让设计，保证结温不超过额定范围；Pd 为 425mW，实际允许电流需按 PCB 散热能力和环境温度做降额。
- 反向恢复快（Trr≈4ns），适合高频开关，但在高电压、高电流快速翻转时仍需注意寄生电感与过电压。
- Ifsm 为非重复峰值浪涌电流，短时允许较大冲击，长时间或重复冲击需避免。
- 若需替换常见 1N4148，可在满足功率与频率条件下考虑 MMSD4148T3G 作为 SOD-123 封装的小型替代件。
六、封装与采购信息
品牌：ON（安森美半导体）
型号：MMSD4148T3G
封装：SOD-123，常见卷带包装，适用于 SMT 自动化生产。具体包装、批次与交期请参照安森美官方数据手册与供货信息。
如需进一步的电气特性曲线、焊接工艺建议或在特定电路中的等效替换方案，可提供具体应用电路以便给出更精确的工程建议。
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