WMSIC Electronic Components

KUU KSI2305CDS-T1-GE3

ModelKSI2305CDS-T1-GE3
PackageSOT-23
BrandKUU
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
KUU KSI2305CDS-T1-GE3
Type
KUU
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
KUU
Electronic Component
KSI2305CDS-T1-GE3
Electronic Component
1
Package
SOT-23
Electronic Component
1 P
Type
P
Electronic Component
MOSFET
Electronic Component
0.031g
Electronic Component
1
Electronic Component
BM0264548707
Power Dissipation(Pd)
1.1W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
20V
Capacitor(Ciss)
415pF

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

KSI2305CDS-T1-GE3 产品概述

一、概述

KSI2305CDS-T1-GE3 是一颗面向便携电源与电源管理的小功率 P 沟道 MOSFET,封装为 SOT-23,品牌 KUU。其额定漏源电压为 20V,连续漏极电流 4A(受封装散热限制需注意热耗散),导通电阻典型值为 85mΩ(在 VGS = 2.5V 条件下),适合作为高端开关(高侧开关)、反向电流保护和电池路径切换等应用。

二、主要参数

  • 类型:P 沟道 MOSFET
  • 漏源耐压 Vdss:20V
  • 连续漏极电流 Id:4A(封装与 PCB 散热条件相关)
  • 导通电阻 RDS(on):85mΩ @ |VGS|=2.5V
  • 阈值电压 VGS(th):约 1V(指门源电压的阈值幅值)
  • 总栅极电荷 Qg:36nC @ 4.5V
  • 输入电容 Ciss:415pF
  • 反向传输电容 Crss:87pF
  • 输出电容 Coss:223pF
  • 耗散功率 Pd:1.1W(SOT-23 封装,需良好 PCB 散热)

三、特性与优势

  • 低导通电阻(在低门压下仍有较低 RDS(on)),适合 1.8–5V 逻辑电平驱动的系统。
  • 较小的体积(SOT-23),便于空间受限的移动与消费类电子设备应用。
  • 中等栅极电荷与电容值(Qg=36nC,Ciss=415pF)在低至中等开关频率下能提供平衡的开关损耗与切换速度。

四、典型应用场景

  • 电池供电设备的高端开关与电源路径选择(Battery FET / load switch)。
  • 反向电流保护和电源方向控制(用于防止反向给电)。
  • 低功率 DC-DC 后级开关、便携式设备电源管理模块、LED 驱动与静音/静态断路控制。
  • 需要逻辑电平驱动的负载开/关场合。

五、设计与使用建议

  • 注意 VGS 极性:P 沟道器件通过将栅极电压低于源极来导通(例如对电池正端高侧开关,需把栅极拉低)。RDS(on) 标称值在 |VGS|=2.5V 时测得,实际驱动电压应保证足够的门极摆幅以达成期望导通电阻。
  • 热耗散与电流能力:SOT-23 封装 Pd 为 1.1W,理论上的 4A 连续电流需在良好散热与短脉冲条件下评估。设计时用 I^2·R 计算功耗并留有安全裕度;例如在满载下可能需要降低占空比或采用热铜平面以提高散热。
  • 开关损耗:Qg 与 Ciss/Crss 对开关损耗影响明显,适用于低至中频率切换;若用于高速切换,应评估驱动器能力和开关损耗。
  • 引脚与封装:SOT-23 小型封装便于布局,但具体引脚定义请以器件数据手册为准并做好 ESD 防护与焊接工艺控制。

六、采购与替代

  • 型号:KSI2305CDS-T1-GE3;品牌:KUU;封装:SOT-23。
  • 选型时如需更低 RDS(on) 或更高功率处理能力,可考虑更大封装(SOT-223、SO-8)或同类 P 沟道器件作为替代,但需比较 Vdss、RDS(on)、Qg 及封装散热能力。

如需更详细的电气特性曲线、引脚图与典型应用电路图,请提供是否需要数据手册或应用电路示意,我可依据器件参数给出具体设计建议与计算示例。

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