WMSIC Electronic Components

CBI 2SK3018

Model2SK3018
PackageSOT23
BrandCBI
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 Option 64563

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
CBI 2SK3018
Type
CBI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CBI
Electronic Component
2SK3018
Electronic Component
1
Package
SOT23
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.032g
Electronic Component
50
Electronic Component
BM0265834855
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
350mW
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.

2SK3018 N沟道MOSFET产品概述

2SK3018是创基电子(CBI)推出的一款小功率N沟道增强型MOSFET,采用SOT-23表面贴装封装,针对低压小电流、紧凑型电路场景优化设计,具备宽温范围、低导通电阻、易驱动等核心优势,广泛适用于消费电子、工业控制、穿戴设备等领域的微小信号切换与小功率控制。

一、产品核心定位与属性

作为一款低压小电流MOSFET,2SK3018的设计目标是解决“小体积、低功耗、易驱动”的实际需求:

  • 封装:SOT-23(尺寸约2.9×1.6×1.1mm),仅占用极小PCB面积,适配智能手环、传感器节点等紧凑型电路;
  • 电压电流:漏源击穿电压(Vdss)30V、连续漏极电流(Id)100mA,覆盖3.3V/5V低压系统的小电流控制场景;
  • 驱动特性:低阈值电压(Vgs(th)=1.5V)+ 低导通电阻(RDS(on)=13Ω@Vgs=2.5V),可直接由多数MCU(STM32、51单片机)IO口驱动,无需额外电平转换或驱动芯片。

二、关键电性能参数详解

2SK3018的参数针对低压小信号场景做了针对性优化,核心参数的实际意义如下:

1. 耐压与电流能力

  • Vdss=30V:漏源极最大击穿电压,预留充足余量(实际多工作在5V以下),避免过压损坏;
  • Id=100mA:连续工作最大漏极电流,满足传感器电源、小功率LED驱动、电池辅助电路等需求;
  • Pd=350mW:最大耗散功率,当Id=100mA时,功耗仅0.1³×13=0.13mW,远低于额定值,散热压力极小。

2. 驱动与导通特性

  • Vgs(th)=1.5V:栅源阈值电压,确保栅压≥1.5V时可靠导通,适配MCU IO口高电平(通常≥2V),无需电平转换;
  • RDS(on)=13Ω@Vgs=2.5V:2.5V栅压下的导通电阻,是核心优势——100mA电流时压降仅1.3V,大幅降低功率损耗。

3. 电容与高频特性

  • Ciss=13pF:输入电容(栅极对源极+漏极),反映栅极充电速度;
  • Crss=4pF:反向传输电容(栅极对漏极),减少高频信号串扰; 低电容值适合高频小信号应用(如音频前置放大、微小信号切换),信号失真度低。

4. 温度适应性

  • 工作温度:-55℃+150℃,覆盖工业级(-40℃+125℃)甚至部分车载级(-40℃~+150℃)需求,极端环境下稳定可靠。

三、封装与可靠性设计

2SK3018采用SOT-23封装,具备以下特点:

  • 小型化:适配穿戴设备、传感器节点等对体积要求严格的场景;
  • 表面贴装:适配自动化焊接,生产效率高;
  • 可靠性:封装材料耐温性好,配合宽温设计,通过温度循环、湿度测试,长期工作稳定;创基电子作为国内成熟厂商,产品品质有保障。

四、典型应用场景

结合参数特性,2SK3018的典型应用包括:

  1. 低压小电流开关:MCU控制的传感器电源通断、蓝牙/WiFi模块使能;
  2. 小功率放大:音频小信号前置放大、传感器输出信号放大;
  3. 电池管理辅助:低功耗设备充电开关、电池均衡辅助电路;
  4. 工业控制信号切换:PLC输入输出端小信号切换、工业传感器控制;
  5. 消费电子内部控制:智能遥控器、小型音箱的内部开关、LED指示灯驱动。

五、使用注意事项

为确保稳定工作,需注意:

  1. 静电防护:MOSFET栅极易受静电损坏,焊接时戴防静电手环,存放用防静电包装;
  2. 栅压限制:避免Vgs超过±20V(最大允许值),防止栅极氧化层击穿;
  3. 导通电阻优化:若需更低电阻,可适当提高栅压(如Vgs=4.5V),但不超过MCU IO口最大输出电压;
  4. 过流防护:避免长时间过流(超过100mA),防止结温过高。

总结

2SK3018作为高性价比小功率MOSFET,凭借“小体积、易驱动、宽温、低功耗”的核心优势,成为低压小电流场景的理想选择。无论是消费电子的紧凑型设计,还是工业控制的极端环境,均能稳定可靠工作,同时降低电路复杂度与成本。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.