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KUU KIRLML6401TRPBF
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- KUU KIRLML6401TRPBF
- Type
- KUU
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- KUU
- Electronic Component
- KIRLML6401TRPBF
- Electronic Component
- 1
- Package
- SOT-23
- Electronic Component
- 1 P
- Type
- P
- Electronic Component
- MOSFET
- Electronic Component
- 0.03g
- Electronic Component
- 1
- Electronic Component
- BM0264548706
- Power Dissipation(Pd)
- 1.4W
- Electronic Component
- Electronic Component
- Electronic Component
- 3000
- Voltage(Vdss)
- 12V
- Capacitor(Ciss)
- 830pF
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
KIRLML6401TRPBF 产品概述
一、主要参数与特性
KIRLML6401TRPBF 为 KUU 旗下 P 沟道场效应管，封装为 SOT-23，单只包装。关键参数：漏源耐压 Vdss = 12 V，连续漏极电流 Id = 4.3 A（器件极限值，实际取决于 PCB 散热），最大耗散功率 Pd = 1.4 W（SOT-23 封装下热性能限制）。导通电阻 RDS(on) ≈ 125 mΩ（在 VGS = -1.8 V 条件下测得）；阈值电压 VGS(th) ≈ 1.0 V。栅极电荷量 Qg = 10 nC（在 VGS = ±4.5 V 条件下），输入电容 Ciss = 830 pF，输出电容 Coss = 180 pF，反向传输电容 Crss = 125 pF。该器件适合低压、高密度电源管理场合的高侧开关应用。
二、典型应用场景
- 便携式设备的电池断路/负载开关与电源选择（电池到系统电源切换）
- 反向电流隔离与反接保护（需考虑 Vdss 余量）
- 小功率 DC-DC 转换器中的同步或高侧开关（在 12 V 以下系统）
- USB/移动供电管理、智能终端电源路径控制
三、使用建议与电路注意事项
- P 沟道器件，开启时要求 VGS 为负（源端比栅端更正），例如在 12 V 系统中驱动需将栅拉至接近地电位以导通；关闭时栅接近源电位。
- RDS(on) 在低 VGS 时会上升，若需降低功耗应保证足够的栅压摆幅。
- Qg = 10 nC 表明门极驱动电流需求中等，驱动器需能提供瞬时充放电能力；为抑制振铃可在栅极串联 10–100 Ω 的限流电阻。
- Ciss/Crss 值会影响开关速度与米勒效应，快速开关时注意增加布局优化与阻尼。
- 由于 Vdss 仅 12 V，设计时应留出稳压与瞬态裕量，避免高压尖峰损坏器件；必要时配合 TVS 或限压器件使用。
四、封装与热管理
SOT-23 封装体积小，但热阻相对较高，Pd = 1.4 W 为额定耗散，在实际应用中建议：
- 在 PCB 上增大铜箔散热面积，增加下层或底纹铜并通过热过孔连接多层铜箔；
- 缩短高电流走线，减小接触电阻与局部发热；
- 在持续高电流场合按实际工作温升计算允许电流，避免长时间工作在极限区域。
五、选型与替代建议
KIRLML6401TRPBF 适合对体积与开关特性有中等要求的低压高侧开关应用。若需更高耐压或更低 RDS(on)，应选用更大封装或 20–30 V 额定器件；若希望更快开关可优先考虑更小 Ciss/更低 Qg 的型号。订购型号注意完整料号与无卤环保（TRPBF）标识。
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