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TWGMC SS8550W PNP Transistor SS8550W
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TWGMC SS8550W
- Type
- TWGMC
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TWGMC
- Electronic Component
- SS8550W
- Electronic Component
- 1
- Package
- SOT-323
- Electronic Component
- 1 PNP
- Electronic Component
- Transistor(BJT)
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0226538431
- Operating Temperature
- 55℃~+150℃
- Transistor Type
- PNP
- Frequency(f T)
- 100MHz
- 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.
SS8550W 产品概述
一、产品简介
SS8550W 是一款小型封装的通用 PNP 晶体管，由 TWGMC（台湾迪嘉）生产，采用 SOT-323 封装，适合于表面贴装的低功耗开关与小信号放大场合。器件在宽温度范围内工作可靠，可用于便携设备、音频放大、驱动与电平转换等应用。
二、主要参数
- 晶体管类型：PNP
- 直流电流增益 hFE：120（测试条件 Ic = 100 mA，Vce = 1 V）
- 集电极电流 Ic：1.5 A（峰值能力，使用时需参照功耗限制）
- 集电极耗散功率 Pd：200 mW
- 集射极击穿电压 Vceo：25 V
- 集电极截止电流 Icbo：100 nA
- 特征频率 fT：100 MHz
- 集射极饱和电压 VCE(sat)：500 mV（典型）
- 工作温度范围：-55 ℃ ~ +150 ℃
- 封装：SOT-323（小尺寸表面贴装）
三、性能特点
- 小体积（SOT-323）适合高密度 PCB 布局，节省空间。
- hFE 在中等偏流（100 mA）下仍保持较高增益，适合小信号放大与驱动级。
- fT 约 100 MHz，适用于低到中频带的信号放大与开关应用。
- 低漏电流（Icbo 100 nA）有利于高阻抗电路和低静态功耗设计。
- 宽温度范围保证在工业级温度条件下稳定工作。
四、典型应用场景
- 便携式设备中的高端开关或电源管理（用作高侧 PNP 开关）
- 小信号放大器与前级放大，尤其是需要 PNP 器件的互补对称电路
- 音频放大器的驱动级或偏置网络
- 逻辑电平转换、微控制器外围驱动与低压继电器/LED 驱动（注意功耗限制）
五、使用与热管理建议
- 虽然 Ic 峰值可达 1.5 A，但器件功耗 Pd 仅 200 mW，连续大电流工作时必须控制 Vce 以防止过热。功耗计算请遵循 Pd ≥ Vce × Ic。
- 在作为开关使用时，确保基极有足够的驱动电流并串联合适的限流电阻以保护基极。
- 对于线性放大应用，应关注热跑逸与偏置稳定，必要时增加散热或降低工作点电流。
- SOT-323 为塑封小尺寸封装，焊接时采用推荐的回流焊曲线与合理的铜箔热设计，以保证可靠的焊点和热散能力。
- 长期储存与焊接请遵守厂商的湿敏等级（MSL）与回流温度规范。
六、封装与订购信息
- 封装形式：SOT-323（表面贴装）
- 品牌：TWGMC（台湾迪嘉）
- 在选型时，请确认应用对连续功率、峰值电流和饱和压降的要求，必要时参考完整数据手册以获取详细极限值、典型特性曲线及焊接规范。
总结：SS8550W 是一款针对空间受限、要求中等增益与中频特性的 PNP 小信号晶体管，适用于多种通用开关与放大电路。设计时应重点考虑功耗与散热约束，合理安排驱动与偏置，以发挥其最佳性能。
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