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KUU KM3139K
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU KM3139K
- Type
- KUU
- Minimum package
- 8000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- KM3139K
- Electronic Component
- 1
- Package
- SOT-723
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 1g
- Electronic Component
- 1
- Electronic Component
- BM0264356212
- Operating Temperature
- 55℃~+150℃
- Power Dissipation(Pd)
- 1W
- Gate Voltage(Vgs)
- ±12V
- Electronic Component
- Electronic Component
- Electronic Component
- 8000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
KM3139K 产品概述
一、产品简介
KM3139K 是 KUU 品牌的一款小型 P 沟道场效应管（MOSFET），采用 SOT-723 封装，单片封装设计，适合空间受限的便携式电子设备与电源管理电路。器件额定漏源电压为 20V，连续漏极电流 660mA，额定耗散功率 150mW，适用于低功率高侧开关与电源切换场合。
二、主要电特性
- 最大漏源电压 Vdss：20V
- 连续漏极电流 Id：660mA（器件极限值，实际应用需考虑封装散热）
- 导通电阻 RDS(on)：510mΩ（在 Vgs = -4.5V 条件下）
- 阈值电压 Vgs(th)：约 0.8V（开启阈值）
- 总栅极电荷 Qg：1.24nC（在 Vgs = 4.5V 标定）
- 输入电容 Ciss：113pF，反向传输电容 Crss：9pF
- 工作温度范围：-55℃ ~ +150℃
三、性能亮点
- 低栅极电荷（1.24nC）利于快速开关和减少驱动损耗，适合需要频繁切换的电源管理场景。
- 紧凑 SOT-723 封装，便于高密度 PCB 布局，适合移动设备与物联网终端。
- 适中的 RDS(on) 与 20V 耐压，在低电压高侧开关、反接保护与电源路径管理中提供平衡的性能与成本。
四、典型应用场景
- 电池供电设备的高侧开关与断开控制（便于实现低电阻断开与省电）
- 反向电池保护和热插拔电源管理
- 便携式消费电子、穿戴设备、物联网节点等对体积和能耗敏感的应用
- 小电流负载的电源路径选择与切换
五、使用建议与注意事项
- 为了保证可靠的连续电流能力，请在 PCB 设计时增加散热铜箔面积并考虑封装的热阻，避免长期在最大 Pd 下工作。
- 作为 P 沟道高侧开关时，门极需相对于源极施加负电压（例如 Vgs ≈ -4.5V 可实现标称 RDS(on)）；在驱动电压不足时，导通电阻会增大。
- Ciss 与 Crss 值提示器件在开关瞬态中具有一定寄生电容，快速开关时需配合合理的驱动器和阻尼以降低振铃与 EMI。
- 建议在实际电路中根据温升和散热条件对最大允许电流进行降额，以延长器件寿命并保证稳定工作。
KM3139K 凭借小体积、较低栅极电荷和适中的导通电阻，适合在体积受限和低功耗要求的高侧开关与电源管理场合使用。设计时应关注散热与驱动电压，以发挥其最佳性能。
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