WMSIC Electronic Components

UTC 2SK3666G-3-AE3-R 2SK3666G

Model2SK3666G-3-AE3-R
PackageSOT-23
BrandUTC
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
UTC 2SK3666G-3-AE3-R
Type
SOT-23
Minimum package
3000

Technical parameters

Electronic Component
UTC
Electronic Component
2SK3666G-3-AE3-R
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Electronic Component
MOSFET(JFET)
Electronic Component
0.035g
FETType
N
Electronic Component
1
Electronic Component
BM0231051895
Power Dissipation(Pd)
200mW
Electronic Component
3000
Current(Idss)
6mA
Capacitor(Ciss)
4pF
Resistor(RDS(on))
270Ω
Voltage(VGS(off))
950mV

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

2SK3666G-3-AE3-R 产品概述 — UTC(友顺)

一、产品简介

2SK3666G-3-AE3-R 为 UTC(友顺)出品的一颗小功率 N 沟道场效应管,采用 SOT-23 小封装。该器件面向小信号开关与放大应用,结构紧凑,适合空间受限的消费电子与便携设备电路中使用。主要基础参数包括耗散功率 Pd = 200 mW、导通电阻 RDS(on) = 270 Ω(典型/标称值)、输入电容 Ciss = 4 pF(在 Vgs = 10 V 测试条件下)。

二、关键参数解读

  • 耗散功率(Pd = 200 mW):此参数限定了器件在允许环境与散热条件下的最大静态功耗。Pd 值较小,适合低功耗、信号级别的电路,若用于开关场合需注意占空比与结温上升。
  • 导通电阻(RDS(on) = 270 Ω):较高的导通电阻说明该 FET 不适合大电流传输场合,更适用于作为信号开关、晶体管替代或高阻抗负载驱动。
  • 输入电容(Ciss = 4 pF @10 V):低输入电容利于高速切换,门极驱动功率低,适用于对开关速度和驱动源负担敏感的应用,但由于器件整体为小功率类型,仍以信号级切换为主。

三、典型应用场景

  • 数字信号开关:作为低电流的逻辑切换开关或电平传输器件使用。
  • 便携设备的电源路径控制(低电流):比如电源管理中的低功耗通断控制。
  • 模拟开关与复用:用于小幅度模拟信号的切换或路径隔离。
  • 保护与限流电路:在要求低漏电和小面积的保护电路中应用。

四、器件使用建议

  • 工作电流与功耗控制:由于 Pd 仅 200 mW,设计时应估算在最高导通情况下的功耗 P = I^2·RDS(on),并确保在实际工况下结温与封装允许范围内工作。若持续电流较大,应增加散热或选择更低 RDS(on) 的器件。
  • 驱动要求:Ciss = 4 pF 表明门极驱动电荷小,门极驱动电路负担轻。尽量避免在极低门极电压边界工作以免进入亚阈区导致开关速度和导通不稳定。
  • 开关频率:低 Ciss 有利于高速切换,但仍需考虑总功耗与开关损耗,适用于中高频的小信号开关。

五、封装与焊接注意

  • 封装为 SOT-23,适合自动贴片加工。焊接工艺按常规无铅回流曲线执行,注意避免过高的回流峰值温度和多次回流导致封装应力。
  • PCB 布局建议将器件的散热路径尽量短,靠近地平面或采用局部铜铺以帮助热量扩散。信号线靠近布局可减少寄生电容与感抗。

六、采购与替代选型

  • 品牌:UTC(友顺),在成本敏感型应用中具备竞争力。选型时应与供应商核实完整的器件数据手册与可靠性测试报告。
  • 替代选型:若需要更低导通电阻或更大功耗,应考虑小信号 MOSFET 中低 RDS(on)、更高 Pd 的型号;若仅需类似开关功能且对 RDS(on) 要求不高,可在封装与尺寸相近的器件中对比 Ciss 与漏电流等参数作替换。

七、总结

2SK3666G-3-AE3-R 是一款面向小信号开关与低功耗控制的 N 沟道 MOSFET,Pd = 200 mW、RDS(on) = 270 Ω、Ciss = 4 pF 的参数组合决定了其在小电流、空间受限和要求快速驱动的场合具有优势。设计时应以热管理与电流限值为约束,合理评估器件在目标电路中的实际功耗与长期可靠性。需要完整电气特性与极限参数时,请参考 UTC 官方数据手册或联系供应渠道获取详细资料。

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