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Hottech MMBD4148CA
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Hottech MMBD4148CA
- Type
- HOTTECH
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- HOTTECH
- Electronic Component
- MMBD4148CA
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- Switch Diode
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0228550660
- Current
- 200mA
- Diode
- 1
- Current(Ir)
- 5uA@75V
- (Vf)
- 1V@10mA
- Power Dissipation(Pd)
- 350mW
- 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.
MMBD4148CA 产品概述
一、概述
MMBD4148CA 是 Hottech（合科泰）推出的一款双二极管开关器件，采用 SOT-23 小外形封装，内部为一对共阳极（Common Anode）结构。器件以低正向压降、快速恢复和高反向耐压为主要特性，适合各种高速开关和小信号整流、保护场景。
二、主要参数
- 二极管配置：1 对共阳极（共阳）
- 正向压降：Vf = 1.0 V @ If = 10 mA
- 直流反向耐压：Vr = 100 V
- 整流电流（最大）：If(avg) = 200 mA
- 功耗耗散：Pd = 350 mW（封装热限）
- 反向电流：Ir = 5 μA @ Vr = 75 V
- 反向恢复时间：Trr = 4 ns
- 封装：SOT-23
- 品牌：Hottech（合科泰）
三、典型特性与优势
- 100 V 高反向耐压，适合较高电压侧的小信号切换与保护。
- Vf 低且一致性好，有利于减小开关损耗与电压降落。
- 极小的 Trr（约 4 ns），适合高速脉冲、逻辑级开关和高频应用。
- 反向漏电低（5 μA@75 V），利于高阻态下的低泄漏需求。
- SOT-23 小体积，便于高密度 PCB 布局与自动贴片生产。
四、典型应用
- 高频/高速开关电路、门极/逻辑隔离与电平转换；
- 小信号整流、采样保持输入保护；
- 保护电路（钳位、避免反向电压进入敏感电路）；
- 通信、仪表与消费电子中的快速切换通路。
五、封装与选型建议
SOT-23 封装适合自动化贴片与批量生产。选型时注意“共阳”拓扑与电路需求匹配（若电路要求共阴则需选用对应型号）。在高脉冲场景应关注瞬时电流与平均功率限制，避免超过封装耗散能力。
六、热与可靠性注意事项
尽管器件单只整流电流可达 200 mA，但封装 Pd 仅 350 mW，实际应用时应按 PCB 散热、结温及厂方热阻数据进行功率与温升评估并适当降额。建议在高速切换或高压脉冲场合做必要的仿真与样机验证，确保反向恢复与漏电在系统条件下满足要求。
如需详细的温度特性曲线、封装引脚图或卷带包装信息，可参考 Hottech 官方 datasheet 或向供应商索取完整规格书以做最终设计验证。
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