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UMW BS170FTA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UMW BS170FTA
- Type
- UMW
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- UMW
- Electronic Component
- BS170FTA
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 N
- Electronic Component
- MOSFET
- Electronic Component
- 0.038g
- Electronic Component
- 1
- Electronic Component
- BM0228149259
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 300mW
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 60V
- Capacitor(Ciss)
- 25pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BS170FTA 产品概述
一、简介
BS170FTA 是 UMW（友台半导体）推出的一款小功率增强型 N 沟 MOSFET，采用 SOT-23 表面贴装封装，适用于低电流开关与模拟开关场合。器件额定漏源电压 60V，连续漏极电流 250mA，器件工作温度范围宽（-55℃ 到 +150℃），适合工业级环境。
二、主要电气参数
- 漏源电压 (Vdss)：60V
- 连续漏极电流 (Id)：250mA
- 导通电阻 (RDS(on))：2.8Ω @ Vgs=10V
- 耗散功率 (Pd)：300mW
- 阈值电压 (Vgs(th))：约 2V @ Id=250µA
- 栅极电荷量 (Qg)：400pC @ Vgs=4.5V
- 输入/输出/反向传输电容：Ciss=25pF，Coss=5pF，Crss=2pF
三、特性亮点与工程意义
- 高耐压（60V），适合中低压系统的开关应用。
- 小尺寸 SOT-23 封装，便于密集 PCB 布局与自动化贴装。
- 相对较高的 RDS(on)（2.8Ω@10V）表明该器件适合小电流负载；在满载（250mA）下导通损耗仍然有限，但不适合高电流、低压降要求的场合。
- 栅极电荷 Qg 在同类 SOT-23 器件中偏大，意味着驱动时需要考虑栅极驱动能力与开关速度的折衷。
四、应用场景
- 小信号开关、低频通断（继电器驱动前级、指示灯驱动等）。
- 低功耗电源管理与电平转换（注意 Vgs 驱动电压对 RDS(on) 的影响）。
- 模拟开关或保护电路中的低电流路径。
- 不建议用于高频大电流开关或作为主功率 MOSFET。
五、设计与使用建议
- 驱动电压：RDS(on) 标称值在 Vgs=10V 时测得；若由 3.3V/5V MCU 直接驱动，导通阻抗会更高，应验证在目标 Vgs 下的导通损耗。
- 栅极驱动：Qg 较大，若在较高开关频率下使用，应选用有足够瞬时驱动能力的驱动器或适当降低开关频率；使用门阻（10–100Ω）可抑制振铃并限制峰值电流。
- 热管理：Pd=300mW，功耗敏感，PCB 链路应尽量减小串联电阻并提供合理散热铜箔；长时间运行或高环境温度时需考虑降额。
- 电路保护：对于感性负载，需增加反向二极管或回流路径以防止瞬态过压；并在门极加下拉电阻避免悬浮导致误导通。
- 布局要点：缩短漏—源走线，减小寄生电感；栅极走线避免与高电流回路平行以减少耦合噪声。
六、封装与采购
- 封装：SOT-23，适合自动贴装生产。
- 选型提示：在选用前请参照厂商完整数据手册确认引脚排列、典型曲线（RDS vs VGS、ID—VDS）及试验条件，必要时在目标电源/温度下做实测验证。
总结：BS170FTA 适合用于需 60V 耐压、低至中等电流的开关场合，体积小、易集成，但对栅极驱动能力与散热需给予重视。
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