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YANGJIE MMST5551
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- YANGJIE MMST5551
- Type
- SOT-323
- Minimum package
- 3000
Technical parameters
- Electronic Component
- YANGJIE
- Electronic Component
- MMST5551
- Electronic Component
- 1
- Package
- SOT-323
- Electronic Component
- 1 NPN
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.016g
- Electronic Component
- 1
- Electronic Component
- BM0230264248
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- NPN
- Frequency(f T)
- 100MHz
- Power Dissipation(Pd)
- 200mW
- Electronic Component
- 3000
- Collector Current(Ic)
- 600mA
- Current (h FE)
- 100
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
MMST5551 产品概述
一、主要特性
MMST5551 是扬杰（YANGJIE）出品的高压小功率 NPN 双极型晶体管，封装为 SOT-323，适用于空间受限的低功耗开关和信号放大场合。器件特点包括高耐压、低漏电、较高增益和较好的高频响应，便于在便携式、通信与仪表类电路中实现可靠的小信号处理与开关控制。
二、主要参数
- 晶体管类型：NPN（BJT）
- 最大集电极电流 Ic：600 mA
- 集射极击穿电压 Vceo：160 V
- 耗散功率 Pd：200 mW（封装限值，需注意降额）
- 直流电流增益 hFE：100（测试条件 Ic = 10 mA，VCE = 5.0 V）
- 特征频率 fT：100 MHz
- 集电极截止电流 Icbo：50 nA
- 集电极饱和电压 VCE(sat)：200 mV（典型）
- 射基极击穿电压 Vebo：6 V
- 工作温度范围：-55 ℃ ~ +150 ℃
- 品牌与封装：YANGJIE（扬杰），SOT-323
三、典型应用场景
- 低功耗信号开关与驱动：用于数字线驱动、门电路输出级或小型继电器/光耦驱动（注意功耗限制）。
- 小信号放大：用于前置放大、射频/视频信号的低噪声放大与级间缓冲（fT ≈ 100 MHz 支持中低频段）。
- 移动与便携设备：SOT-323 小型封装适合空间受限的移动终端与传感器模块。
- 精密检测与仪表：低漏电流特性（Icbo ≈ 50 nA）有利于高阻测量输入级及电荷放大电路。
四、典型电路与使用建议
- 开关应用：采用共发射极配置，基极串联限流电阻以控制基流，确保 VCE 与功耗不超过器件额定值。若为频繁高电流脉冲，应计算脉冲宽度与热积累，避免超过 Pd。
- 放大应用：在 Ic ≈ 10 mA 附近可获得较稳定的 hFE ≈ 100，适用于前置放大或缓冲；若用于更高电流工作点，请参考数据手册曲线并验证 hFE 下降情况。
- 热管理：SOT-323 封装散热能力有限，印刷电路板上应采取铜箔散热、加大焊盘面积或靠近散热层布置；在高环境温度下应按厂商降额曲线计算允许的最大功耗。
五、封装与可靠性
SOT-323 小封装有助于高密度贴片组装与自动化生产，但对焊接工艺与热冲击敏感。存储与回流焊应遵循厂商建议的湿敏等级与回流曲线，以保证长期可靠性。出于安全与长期稳定性考虑，实际设计中应预留足够裕量，避免在极限参数附近长期工作。
如需更详细的极限参数曲线、典型应用电路图或焊接/降额建议，请参照扬杰官方数据手册或联系供应商获取完整技术资料。
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