WMSIC Electronic Components

WINSOK WST05N10

ModelWST05N10
PackageSOT-23
BrandWINSOK
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WINSOK WST05N10
Type
WINSOK
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WINSOK
Electronic Component
WST05N10
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.037g
Electronic Component
1
Electronic Component
BM0264498691
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
100V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

WST05N10 产品概述

WST05N10 是 WINSOK(微硕)推出的一款通用 N 沟道场效应管(MOSFET),封装为 SOT-23,适用于小功率开关和电源管理场合。器件的主要电气参数为:漏源耐压 Vdss = 100V,连续漏极电流 Id = 2.8A,导通电阻 RDS(on) = 220 mΩ(Vgs = 4.5V),功耗 Pd = 1W,栅源阈值电压 Vgs(th) = 2.5V,门极电荷 Qg = 25nC(@10V),工作温度范围 -55 ℃ ~ +150 ℃。单只产品,SOT-23 封装,适合空间受限的电路板设计。

一、产品特性(要点)

  • 高耐压:100V 漏源电压,适合中高压开关场合。
  • 低门槛设计:Vgs(th) ≈ 2.5V,配合 4.5V 驱动可达到标称 RDS(on)。
  • 适中导通电阻:220 mΩ(@4.5V),在小至中等电流下具有良好效率表现。
  • 适用于 SOT-23 小体积封装,便于紧凑型电源及控制板设计。
  • 门极电荷量 25nC(@10V),开关损耗和驱动需求处于中等水平。

二、典型应用场景

  • 小功率 DC-DC 降压/升压转换器的低端开关或同步整流(注意 RDS(on) 要求)。
  • 便携设备或适配器中的负载开关、短路保护与电池管理。
  • LED 驱动、继电器驱动及小电流马达驱动等。
  • 工业控制、家电电源和辅助电源模块。

三、热与电流管理建议

尽管额定连续漏极电流为 2.8A,但器件的功耗 Pd = 1W(SOT-23 封装)限制了在高电流下的持续使用。按近似损耗计算:P_loss ≈ I^2 × RDS(on)。例如在 2.8A 时损耗约 2.8^2 × 0.22 ≈ 1.72W,已超过器件 Pd,需降额或采用短脉冲工作;在 1A 时损耗约 0.22W,较易散热。建议:

  • 在 PCB 设计中增加散热铜箔、散热过孔和大面积地平面以降低结至环境热阻。
  • 对于高占空比或连续大电流工况,应选用更低 RDS(on) 或功率更大的器件。
  • 按预期工作点估算结温并进行热仿真与实验验证。

四、驱动与开关注意事项

  • 器件在 Vgs = 4.5V 给出 RDS(on) 指标,说明适合 4.5V 逻辑驱动;要求更低导通阻时建议更高门极电压(详见原厂数据手册)。
  • Qg = 25nC(@10V)意味着在高频开关时驱动能量不可忽视,门极驱动器或 MCU GPIO 需要考虑瞬态电流能力和驱动功耗。
  • 开关速度与 EMI、过冲相关,建议在驱动端使用合适的阻尼或 RC 抑制网络以兼顾开关损耗与电磁兼容性。

五、封装与实用建议

  • SOT-23 小型封装便于密集布局,但热容和散热能力有限;在设计时优先考虑 PCB 散热措施。
  • 装配、焊接时遵循标准回流曲线与 ESD 操作规范,避免静电损伤。
  • 具体引脚分配、绝对最大额定值与推荐工作条件请参考详细数据手册以确保可靠使用。

总结:WST05N10 适合中等电压、低至中等电流的小型电源与开关应用,优势在于 100V 耐压与 SOT-23 紧凑封装。设计时需重视热管理与门极驱动,按实际工作点进行降额与验证,以确保长期可靠运行。

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