WMSIC Electronic Components

SM2306SRL

ModelSM2306SRL
PackageSOT-23(SOT-23-3)
BrandSPS
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
SPS SM2306SRL
Type
SPS
Minimum package
3000 袋

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SPS
Electronic Component
SM2306SRL
Electronic Component
1
Package
SOT-23(SOT-23-3)
Electronic Component
1 N
Type
N
Electronic Component
0.032g
Electronic Component
1
Electronic Component
BM0265975041
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
900mW
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
30V
Capacitor(Ciss)
240pF

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

SM2306SRL N沟道场效应管产品概述

一、产品核心定位与基础属性

SM2306SRL是美国源芯(SPS)推出的N沟道增强型MOSFET,采用超小型SOT-23-3表面贴装封装,属于30V低电压、4A中小电流功率器件。其设计聚焦于便携电子、小型电源管理等高密度集成场景,兼顾低损耗、快速开关与小体积特性,是消费电子、工业控制等领域的高性价比选型。

二、关键电气参数深度解析

SM2306SRL的核心参数围绕“低损耗、快开关、宽适应”三大方向设计,具体如下:

  1. 电压与电流能力:漏源击穿电压Vdss=30V,满足多数5V/12V系统的过压防护需求;连续漏极电流Id=4A(25℃),峰值电流可支持更高负载(需结合散热条件),适配中小功率负载切换或电源转换。
  2. 导通损耗控制:导通电阻RDS(on)=49mΩ@Vgs=4.5V、Id=3.5A——在低栅极驱动电压下仍保持极低损耗,例如3.5A负载下导通功率仅约0.6W(P=I²R=3.5²×0.049≈0.6W),完美适配电池供电设备的低功耗要求。
  3. 开关特性优化:栅极电荷Qg=4.5nC@Vgs=10V,反向传输电容Crss=17pF@Vds=15V,输入电容Ciss=240pF@Vds=15V——低栅极电荷降低驱动功率与开关延迟,适合高频脉冲应用(如DC-DC转换);Crss小则减少米勒效应带来的开关噪声。
  4. 环境适应性:工作温度范围-55℃~+150℃(结温),覆盖工业级与消费电子的宽温需求;功率损耗Pd=900mW(25℃),需注意SOT-23封装的散热限制,避免长时间满载运行。
  5. 驱动适配性:阈值电压Vgs(th)=3V@Id=250uA,驱动电压≥4.5V可充分导通,适配多数5V单片机直接驱动,无需额外驱动电路。

三、封装形式与物理特性

SM2306SRL采用SOT-23-3超小型表面贴装封装,尺寸约2.9×1.6×1.1mm(典型值),具有以下优势:

  • 小体积:适配智能手机、智能手环、蓝牙耳机等便携设备的高密度PCB设计;
  • 易集成:表面贴装兼容自动贴片机生产,降低焊接成本;
  • 标准引脚:1脚=栅极G、2脚=源极S、3脚=漏极D,电路布局简单,无需复杂适配。

四、性能优势与典型应用场景

结合参数特性,SM2306SRL的核心优势与应用场景高度匹配:

  1. 便携电子领域:低导通电阻+宽温范围,适合蓝牙耳机音频放大辅助电路、智能手环电源开关、移动电源负载切换模块;
  2. 小型电源管理:快开关特性适配DC-DC升压/降压转换器(如5V转3.3V)、小功率LED阵列恒流控制;
  3. 消费电子配件:充电器过流保护开关、USB Type-C接口电源切换、智能家居设备低功耗控制;
  4. 工业控制辅助:小型传感器电源开关、低功率继电器替代(减少机械磨损)。

五、选型与使用注意事项

为保证稳定运行,需注意以下要点:

  1. 栅极驱动:驱动电压建议≥4.5V(避免仅用3V阈值电压导致导通电阻过大),开关频率1MHz时驱动功率约4.5mW;
  2. 散热设计:SOT-23封装散热有限,3A以上负载需通过PCB漏极引脚连接大面积铜箔辅助散热;
  3. 静电防护:MOSFET栅极易受静电损坏,生产/焊接需用ESD手环、离子风扇防护;
  4. 过压防护:虽有30V击穿电压,建议电路中增加TVS管或保险丝,避免瞬态过压损坏。

SM2306SRL以小体积、低损耗、快开关为核心特性,覆盖多场景需求,是替代传统开关管的理想选型。

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