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CJ 2SA2018
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- CJ 2SA2018
- Type
- CJ
- Minimum package
- 3000 个
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- CJ
- Electronic Component
- 2SA2018
- Electronic Component
- 1
- Package
- SOT-523
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.028g
- Electronic Component
- 1
- Electronic Component
- BM0230137752
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- PNP
- Frequency(f T)
- 260MHz
- Power Dissipation(Pd)
- 150mW
- 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.
2SA2018 PNP型晶体管产品概述
一、产品基本定位
2SA2018是江苏长电（CJ）推出的超小型PNP型小信号晶体管，采用SOT-523封装，专为低功耗、高密度PCB设计的小信号放大与低速开关场景优化。其核心参数兼顾电流能力、增益特性与宽温可靠性，可覆盖便携式电子、工业控制及汽车电子等多领域的小信号处理需求，是小电流电路设计的高性价比选择。
二、核心电气参数详解
2SA2018的电气参数经过严格测试，关键指标及实际意义如下：
- 电流与功率能力：最大集电极电流（(I_c)）为500mA，最大耗散功率（(P_d)）150mW，无需额外散热即可稳定工作，适配低功耗电路的小电流驱动；
- 电压特性：集射极击穿电压（(V_{CEO})）12V、射基极击穿电压（(V_{EBO})）6V，可承受一定过压冲击；集射极饱和电压（(V_{CE(sat)})）仅250mV（(I_c=200mA、I_b=10mA)时），开关导通损耗极低，提升电路效率；
- 增益与频率响应：直流电流增益（(h_{FE})）达270（(V_{CE}=2V、I_c=10mA)时），放大微弱信号能力优异；特征频率（(f_T)）260MHz，在260MHz以下频率范围保持良好线性度，适配中等频率信号处理；
- 漏电流性能：集电极截止电流（(I_{CBO})）仅100nA，漏损极小，适合电池供电的便携式设备（静态功耗敏感场景）。
三、封装与工作环境
- 封装特点：采用SOT-523超小型表面贴装封装，典型尺寸约1.6mm×1.6mm×0.8mm，无引线设计，可显著压缩PCB占用空间，适配高密度布局（如可穿戴设备、手机主板）；
- 工作温度范围：支持-55℃至+150℃宽温工作，远超一般民用器件（通常0℃~70℃），可在工业现场、车载环境等恶劣温度场景下稳定运行，可靠性有保障。
四、典型应用场景
结合参数特性，2SA2018的典型应用包括：
- 小信号放大：音频前置放大器、传感器信号调理（压力/温度传感器微弱信号放大）、260MHz以下射频前端小信号放大；
- 低速开关：小功率LED驱动（≤500mA）、逻辑电平转换（3.3V转5V）、电源管理模块使能开关；
- 便携式设备：蓝牙耳机、智能手表、手机的音频放大与信号处理；
- 工业/汽车电子：车载传感器信号处理、工业控制模块小信号放大与开关（利用宽温特性适应复杂环境）。
五、品牌与可靠性说明
2SA2018由江苏长电（CJ）生产，长电是国内领先的半导体制造商，产品符合RoHS环保标准，且经过温度循环、湿热测试等可靠性验证，批量应用中一致性稳定。低漏损（(I_{CBO}=100nA)）、宽温范围等特性，进一步提升了长期使用的可靠性，适合量产项目选型。
该器件参数平衡了性能与成本，是小信号电路设计中替代进口器件的高性价比选择。
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