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JSMSEMI SS8550
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- JSMSEMI SS8550
- Type
- JSMSEMI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- JSMSEMI
- Electronic Component
- SS8550
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.034g
- Electronic Component
- 1
- Electronic Component
- BM0227639668
- Transistor Type
- PNP
- Frequency(f T)
- 100MHz
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Collector Current(Ic)
- 1.5A
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
SS8550 产品概述
一、产品简介
SS8550 是杰盛微（JSMSEMI）推出的一款小型封装 PNP 双极结型晶体管，采用 SOT-23 封装，适用于便携和板级安装的低压低功耗开关与小信号放大场合。器件在中等电流工作点具有较高的直流电流增益，兼顾频率响应和耐压能力，适合做通用 PNP 补偿、前置放大与低压放大/开关元件。
二、主要性能参数
- 晶体管类型：PNP
- 封装：SOT-23（表面贴装）
- 直流电流增益 hFE：120（在 Ic=100mA，VCE=1V 条件下）
- 集电极电流 Ic：最大 1.5A
- 集电极—发射极击穿电压 Vceo：25V
- 射基极击穿电压 Vebo：5V
- 集电极截止电流 Icbo：100nA（典型低漏电）
- 截止频率 fT：100MHz（高于一般音频应用，适用于高频小信号场合）
- 饱和电压 VCE(sat)：约 500mV（标注条件见规格）
- 耗散功率 Pd：1W（器件极限额定，实际使用请参考 PCB 散热能力）
- 工作温度范围：-55℃ ～ +150℃
三、应用场景与优势
SS8550 以其较高的 hFE（在 100mA 区域）和 100MHz 的特征频率，适合以下应用：
- 便携式设备中的低压电源开关与电流恢复电路；
- 小信号放大器和前置放大级（如音频前级、传感器信号放大）；
- 低电压互补对（PNP 与 NPN 配对）构成推挽输出或驱动级；
- 高频或宽带小信号放大（受限于封装散热与偏置条件）。
优势要点：
- SOT-23 封装便于表贴与自动化生产；
- 较低的 Icbo 有利于低漏电设计；
- 25V 的耐压适合大多数低压系统中作为高侧开关使用。
四、使用注意事项
- 饱和压较高：VCE(sat) 在大电流下约为 500mV；对低压差功率开关应评估导通损耗。
- 热管理：尽管 Pd 标称为 1W，SOT-23 的实际散热依赖 PCB 铜箔面积与焊盘设计。建议在大电流或连续工作时增加散热铜箔并按厂商热阻曲线设计。
- 偏置与驱动：为了获得标注的 hFE，请在规定的 Ic、VCE 条件下工作；驱动电流与工作点会显著影响放大倍数与开关特性。
- 引脚与封装：不同厂家的 SOT-23 引脚排列可能存在差异，实际设计前请参照 JSMSEMI 正式数据手册核对引脚定义和绝对最大额定值。
五、封装与采购信息
品牌：JSMSEMI（杰盛微）
封装：SOT-23（表面贴装）
产品定位：通用 PNP 小信号/低功耗开关晶体管，适合批量贴片生产与模块化设计。
建议在批量采购或关键应用前索取并核对厂商的完整数据手册与可靠性测试报告，以确保在目标工作条件下的长期可靠性。
如需更详细的电气特性曲线、引脚图或热阻参数，可向厂商索取 SS8550 的完整规格书以便做进一步的电路仿真与版面散热设计。
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