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MDD MMBT3906
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MDD MMBT3906
- Type
- MDD
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MDD
- Electronic Component
- MMBT3906
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Electronic Component
- BM0227798532
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- PNP
- Frequency(f T)
- 300MHz
- Power Dissipation(Pd)
- 200mW
- 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.
MMBT3906（SOT-23）产品概述
一、产品简介
MMBT3906 是一款常用的小信号 PNP 晶体管，封装为 SOT-23，由 MDD 品牌生产。器件适用于低功耗开关与小信号放大场合，体积小、增益高、频率响应好，常与其 NPN 对应件（如 MMBT3904）配合使用于共模电路、互补放大及高侧开关。
二、主要电气参数
- 晶体管类型：PNP（小信号三极管）
- 集电极电流 Ic：200 mA（最大）
- 集射极击穿电压 Vceo：40 V
- 耗散功率 Pd：200 mW（器件级）
- 直流电流增益 hFE：300 @ Ic=10 mA, Vce=1 V（高增益）
- 特征频率 fT：300 MHz（适合高频、小信号放大）
- 集电极截止电流 Icbo：100 nA（低漏电）
- 集电极饱和电压 VCE(sat)：约 300 mV @ Ic=50 mA（Ib=5 mA）
- 射基极击穿电压 Vebo：5 V（注意基极-发射极反向电压限制）
- 工作温度范围：-55 ℃ ～ +150 ℃
- 封装：SOT-23（常见引脚排列：1=E，2=B，3=C）
- 单位：1 只
三、器件特性与应用场景
- 高 hFE（≈300）使其在低电流条件下仍能提供较大放大倍数，适合小信号放大器、传感器前端放大。
- fT=300 MHz 说明在 VHF 频段仍有良好增益，适合高频开关和射频前端低功耗应用。
- 低 Icbo 与较低饱和压降使其在开关电路中效率较高，适用于小电流高侧开关、功率控制与数字接口移位电平。
- Vceo=40 V 允许在中等电压场合使用，但应避免超过其极限。Vebo=5 V 要求基极不能承受过高反向电压。
四、使用建议与注意事项
- 功耗限制：器件 Pd 仅 200 mW，PCB 布局时应保证足够铜箔散热，避免在大电流且高占空比下长期工作。
- 极性与驱动：PNP 器件通常用于高侧开关，发射极接正电源，集电极接负载。驱动基极时需考虑基极电阻与基极-发射极反向电压限制（Vebo ≤ 5 V）。
- 开关时注意基极电流与饱和区：若要求快速开关与低 VCE(sat)，需提供足够的基极驱动电流，但同时注意不要超过基极极限。
- 环境与可靠性：工作温度范围宽（-55 ℃～+150 ℃），适合工业级温度要求，但在高温下需对功耗进行降额设计。
五、封装与采购信息
- 封装类型：SOT-23，适合贴片自动化装配。常见引脚顺序为 E-B-C（请以具体器件数据手册为准）。
- 典型包装：卷带盘装或散装，单件数量可按需采购。
- 型号标识：MMBT3906，由 MDD 生产，应用广泛且易于替换与匹配。
如需参考电路（偏置、放大或高侧开关示例）或选型比较（与其他 PNP 小信号管对比），可提供具体电路参数与工况以便给出更精确的推荐。
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