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FOSAN FMMT591
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FOSAN FMMT591
- Type
- FOSAN
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- FOSAN
- Electronic Component
- FMMT591
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.032g
- Electronic Component
- 1
- Electronic Component
- BM0264886316
- Transistor Type
- PNP
- Frequency(f T)
- 150MHz
- Power Dissipation(Pd)
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Collector Current(Ic)
- 1A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
FMMT591 PNP 三极管（SOT-23）
一、产品概述
FMMT591 是富信（FOSAN）出品的一款小信号 PNP 双极结三极管，采用 SOT-23 小封装，单只装。器件面向通用开关与放大应用，兼顾较高电流能力与低电流增益特性，适用于便携设备和密集 PCB 布局的场合。
二、主要参数
- 极性：PNP
- 集电极电流 Ic：1 A（峰值/脉冲能力，参考散热条件）
- 集-射极击穿电压 Vceo：60 V
- 功耗 Pd：250 mW（封装热限制，25°C 时典型）
- 直流电流放大倍数 hFE：300（低电流区高增益）
- 特征频率 fT：150 MHz（适合高频小信号放大）
- 集电极截止电流 Icbo：100 nA（低漏电）
- 集电极饱和压 VCE(sat)：典型/最大约 300 mV / 600 mV（测量条件请参见数据手册）
- 射基极击穿电压 Vebo：5 V
- 数量：1 个 / 包装
三、性能特点
- 高 hFE（≈300），在低至中等电流工作点提供良好放大性能，适合前置放大和信号处理。
- fT=150 MHz 表明器件在 VHF 范围内仍保持有效增益，适合高频小信号放大器或驱动级。
- 低 Icbo（100 nA）利于高阻抗或漏电敏感电路。
- 60 V 的耐压使其可在较高电源电压场景下工作（注意受封装功耗限制）。
四、典型应用
- 低功耗开关与电平转换（高侧 PNP 开关）
- 小信号放大器、前置级放大与偏置电路
- 高频信号处理与缓冲驱动
- 便携式电子与消费类产品中替换或串联驱动
五、封装与引脚
- 封装：SOT-23，三引脚小型封装，便于贴片加工与高密度布局。
- 引脚排列因厂商封装习惯可能不同，建议在设计前参照 FOSAN 官方数据手册确认引脚定义与焊盘尺寸。
六、使用建议与注意事项
- 虽然 Ic 标称可达 1 A，但受限于 SOT-23 封装的 Pd（250 mW）和热阻，连续 1 A 工作会导致过热。建议在脉冲或低占空比条件下使用，或通过 PCB 增加铜箔散热。
- VCE(sat) 随 Ic 和 Ib 变化较大，开关应用需依据实际驱动电流选择基极偏流以保证饱和度。
- 注意 Vebo（5 V）和 Vceo（60 V）极限，避免反向击穿或过压工作。
- 装配时注意温升和焊接温度规范，防止封装损伤。
七、结论与采购信息
FMMT591 为一款性能均衡、适用于多种小信号与开关场景的 PNP 三极管，兼具高增益与中等耐压特性。因 SOT-23 的热限制，使用时应关注功耗与散热设计。品牌：FOSAN（富信），包装：SOT-23，数量：1 只。欲获得更详细的测试条件和典型曲线，请参照 FOSAN 的完整数据手册。
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