Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
MSKSEMI MMBT3904-MS MMBT3904
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- MSKSEMI MMBT3904-MS
- Type
- MSKSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- MSKSEMI
- Electronic Component
- MMBT3904-MS
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.034g
- Electronic Component
- 1
- Electronic Component
- BM0226270618
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- NPN
- 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.
MMBT3904-MS 产品概述
一、产品简介
MMBT3904-MS 是 MSKSEMI（美森科）推出的一款通用小信号 NPN 双极型晶体管，SOT-23 封装，丝印 "1AM"（批次标识范围 100-300）。该器件具备中等电压、较高增益和高速特性，适合开关与放大电路的通用应用。
二、主要参数（典型/最大值）
- 晶体管类型：NPN（小信号）
- 集——射击穿电压 Vceo：40 V
- 集电极电流 Ic（最大）：200 mA
- 直流电流增益 hFE：300（典型）
- 特征频率 fT：300 MHz
- 集电极截止电流 Icbo：100 nA
- 射基击穿电压 Vebo：6 V
- 集射极饱和电压 VCE(sat)：约 300 mV
- 功耗 Pd（总耗散）：200 mW
- 工作温度：-55 ℃ ～ +150 ℃
三、特性与优势
- 高频性能良好：fT = 300 MHz，适合宽带、小信号放大或驱动应用。
- 高增益：hFE 可达 300，利于低偏流放大器的增益设计与温度补偿。
- 低漏电：Icbo 低至 100 nA，有利于高阻抗电路的稳定性与低偏置电流要求。
- 小封装、通用性强：SOT-23 适合贴片自动化生产，占板面积小。
四、典型应用场景
- 低功耗开关与驱动（数字接口、继电器/小功率继电驱动）
- 通用小信号放大（前置放大、音频低频放大）
- 电平移位、缓冲、驱动 LED/小继电器
- 高频低功耗放大器与射频前端的非功率级应用
五、设计与使用建议
- 在接近最大 Ic（200 mA）与 Pd（200 mW）工作时注意热量管理，建议留有安全裕量并进行功耗估算与热仿真。
- VCE(sat) 300 mV 为典型值，饱和压与基极电流、集电流关系密切，实际设计请参考数据手册的测试条件并调整基极限流。
- 在高速切换或放大应用中注意寄生电容和布线感抗，合理布局反馈与旁路电容以保证稳定性。
- 对于关键参数（如 hFE 随 Ic/温度变化、SOA 极限），请以官方数据手册为准并做好裕量设计。
六、封装与可靠性
- 封装：SOT-23（适用于自动贴片工艺）
- 丝印标识：1AM（批次 100-300）
- 环境与可靠性：工作温度范围 -55 ℃ 至 +150 ℃，适用于工业级温度要求。建议在高湿或高静电环境下采取相应保护与封装措施。
七、选型建议与替代
MMBT3904-MS 适合寻找通用、高增益、高频小信号 NPN 的场合。若需更高功耗或不同封装（如 TO-92）、更低 VCE(sat) 或不同增益特性，可考虑 2N3904、MMBT3904（其它厂商版本）等作为替代，但请比对 Vceo、Ic、Pd 与封装管脚定义以确认兼容性。
如需原厂完整电气特性曲线、引脚定义与典型电路，请参考 MSKSEMI 官方数据手册与样片测试报告。
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