WMSIC Electronic Components

JJW JMTL3404A

ModelJMTL3404A
PackageSOT-23
BrandJJW
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
JJW JMTL3404A
Type
JJW
Minimum package
3000 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
JJW
Electronic Component
JMTL3404A
Electronic Component
1
Package
SOT-23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.043g
Electronic Component
1
Electronic Component
BM0257657585
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.47W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V

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

JMTL3404A 产品概述

一、产品简介

JMTL3404A 是捷捷微(JJW)推出的一款小封装、高性能 N 沟道功率 MOSFET,采用 SOT-23 封装,面向便携电源管理和功率开关应用。器件耐压 30V,适合中低压开关场合,兼顾低导通损耗与较快的开关性能,适用于空间受限的 PCB 设计。

二、主要参数

  • 漏源电压 (Vdss):30V
  • 连续漏极电流 (Id):5.8A(封装和散热条件下)
  • 导通电阻 (RDS(on)):18mΩ @ Vgs=10V;28mΩ @ Vgs=4.5V
  • 最大耗散功率 (Pd):1.47W(参考值,受PCB散热影响)
  • 阈值电压 (Vgs(th)):1.5V @ 250µA
  • 总栅极电荷 (Qg):5.2nC @ 10V
  • 输入电容 (Ciss):490pF;输出电容 (Coss):79pF;反向传输电容 (Crss):61pF
  • 工作结温范围:-55℃ ~ +150℃
  • 封装:SOT-23

三、主要特性与优势

  • 低导通电阻:在 10V 驱动下 RDS(on) 仅 18mΩ,可显著降低导通损耗,适合高效率电源路径。
  • 适合逻辑电平驱动:在 4.5V 驱动下 RDS(on) 为 28mΩ,可由常见 MCU 或驱动芯片直接驱动。
  • 适中栅极电荷与电容:Qg=5.2nC、Ciss≈490pF,兼顾开关速度与驱动能耗,利于中频率开关应用。
  • 小型封装:SOT-23 便于小型化设计与成本控制。

四、典型应用

  • DC-DC 转换器(高侧/低侧开关、同步整流)
  • 电池保护、电源路径切换与负载开关
  • USB/Type-C 电源管理与功率分配开关
  • 马达驱动及小功率继电器替代
  • 通用功率开关与稳压模块

五、设计与使用建议

  • 驱动:尽量保证栅极电压达到 10V 可获得最低导通阻抗;若以 MCU 直驱(4.5V 或 5V),需考虑较高的导通损耗。
  • 开关速度控制:为减小振铃和 EMI,建议在栅极串联合适阻值的门极电阻,并视需要加入 RC 抑制网络或 TVS。
  • PCB 散热:SOT-23 封装 Pd 受 PCB 铜面积影响显著,建议在 MOSFET 底部和附近铺设大面积铜箔、加焊盘与散热过孔以降低结温。连续电流 5.8A 需注意实际结温与环境温度。
  • 保护:在开关应用中建议配合斩波二极管或 TVS 以防止过压;设计时考虑短路与过热保护机制。
  • 测试:Vgs(th) 为 1.5V(250µA),仅用于参数参考,不能作为导通判断依据,导通性能应以 RDS(on) 与实际 Vgs 驱动条件评估。

六、可靠性与封装信息

JMTL3404A 的工作结温可达 +150℃,适应较宽的工业温度范围。由于封装尺寸小,长期可靠性与功率消耗密切相关,推荐在批量设计前参考完整数据手册进行热仿真与样机验证,并遵循器件的焊接与回流规范。

七、选型注意

在选择时应综合考虑导通损耗、开关损耗、封装散热能力与成本:若需更低的 RDS(on) 可选择更大封装的 MOSFET;若驱动电压受限且要求极低导通损耗,可选专门的 logic-level 或低压型器件。

总结:JMTL3404A 在 SOT-23 小封装下提供了良好的导通性能与适中的开关特性,适合体积受限且电流中等的电源管理与开关应用。更多引脚定义与典型电路建议请参考官方数据手册。

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