WMSIC Electronic Components

VBsemi SI2308DS-T1-GE3-VB SI2308DS

ModelSI2308DS-T1-GE3-VB
PackageSOT-23(TO-236)
BrandVBSEMI
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
VBsemi SI2308DS-T1-GE3-VB
Type
VBSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
VBSEMI
Electronic Component
SI2308DS-T1-GE3-VB
Electronic Component
1
Package
SOT-23(TO-236)
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.054g
Electronic Component
1
Electronic Component
BM0265842975
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
1.66W
Electronic Component
Electronic Component
Electronic Component
3000
Voltage(Vdss)
60V

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

SI2308DS-T1-GE3-VB N沟道MOS场效应管产品概述

一、产品基本定位

SI2308DS-T1-GE3-VB是VBsemi(微碧半导体) 推出的N沟道增强型MOSFET,核心优势为「小封装、低导通损耗、宽温适配」,主打低压小功率场景的开关控制与电源管理。采用SOT-23-3贴片封装(尺寸约2.9×2.5×1.3mm),适合高密度PCB设计;参数覆盖60V耐压、4A连续漏极电流,可覆盖多数便携电子、小型电源及工业控制小模块的需求。

二、核心电气参数解析

1. 电压电流基础规格

  • 漏源击穿电压Vdss=60V:满足12V、24V等低压系统的耐压需求,避免过压击穿;
  • 连续漏极电流Id=4A:长期稳定承载4A电流(非脉冲),适配中小功率负载(如12V/3A、5V/4A场景)。

2. 低导通电阻(RDS(on))特性

导通电阻是衡量MOSFET损耗的关键指标,该器件表现突出:

  • Vgs=10V时,RDS(on)=75mΩ;
  • Vgs=4.5V时(接近MCU 3.3V/5V控制电压),RDS(on)仍低至86mΩ。

实际损耗计算:以4A连续电流为例,Vgs=10V时损耗仅1.2W(I²×R=4²×0.075),发热可控,无需额外复杂散热。

3. 栅极控制与开关特性

  • 阈值电压Vgs(th)=1V:低阈值设计,仅需1V以上栅极电压即可开启,适配低电压控制电路(如3.3V MCU输出),无需额外驱动;
  • 栅极电荷量Qg:Vgs=10V时4.2nC,Vgs=4.5V时2.1nC,栅极电荷低→开关速度快,适合高频应用(如几kHz~几MHz的DC-DC转换),减少开关损耗。

4. 电容与功率参数

  • 电容参数:Ciss=180pF(输入电容)、Crss=13pF(反向传输电容)→ Crss(密勒电容)小,降低开关电压过冲,提升电路稳定性;
  • 耗散功率Pd=1.66W:接近4A时损耗接近极限,建议长期工作电流控制在3A以内,或搭配小型散热片;
  • 工作温度:-55℃~+150℃,覆盖工业级宽温需求,适合户外、车载等 harsh环境。

三、典型应用场景

结合参数特性,该器件主要适配以下场景:

  1. 便携电子电源管理:手机、平板、智能手环的电池保护、充电模块开关(小封装节省空间,低阈值易被MCU控制);
  2. 小型DC-DC转换:5V转3.3V、12V转5V降压电路(4A电流覆盖多数便携设备功率,低导通电阻提升效率);
  3. 负载开关与LED驱动:小型LED灯串(1-3W)开关、电池设备负载通断(发热小、开关快);
  4. 工业控制小模块:传感器节点电源开关、小型继电器驱动(宽温范围满足工业温度波动)。

四、封装与可靠性

采用SOT-23-3贴片封装,尺寸紧凑,适合高密度PCB布局;VBsemi作为国内成熟厂商,器件一致性与可靠性经过批量验证,可满足量产需求。

五、选型使用注意事项

  1. 栅极电压限制:避免栅极电压超过±20V(MOSFET常见极限),实际控制建议0-10V以内;
  2. 电流降额:长期4A工作损耗接近Pd极限,建议降额至3A以内,或加散热片;
  3. 频率适配:栅极电荷低,适合100kHz以下高频应用,更高频率需评估开关损耗。

该器件凭借「小封装+低损耗+宽温」的综合优势,成为低压小功率场景的高性价比选择。

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