WMSIC Electronic Components

ST STN3N40K3

ModelSTN3N40K3
PackageSOT-223
BrandST
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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ST(STMicroelectronics) STN3N40K3
Type
ST
Unit
Electronic Component
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
STN3N40K3
Electronic Component
1
Package
SOT-223
Electronic Component
1 N
Type
N
Electronic Component
MOSFET
Electronic Component
0.22g
Electronic Component
1
Electronic Component
BM0084330183
Operating Temperature
55℃~+150℃
Power Dissipation(Pd)
3.3W
Electronic Component
Electronic Component
Electronic Component
4000

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

STN3N40K3 产品概述

基本信息

STN3N40K3 是一款高性能的 N 通道金属氧化物场效应管(MOSFET),专为需要高电压和良好导电性能的应用场景设计。该元件具有高达 400V 的漏源电压(Vdss),并可以承载连续 1.8A 的漏极电流(Id @ 25°C),适用于各种电源管理、开关电源及高端电子设备等领域。

关键特性

  • 漏源电压(Vdss): STN3N40K3 获得了 400V 的额定漏源电压,使其能够处理高电压应用,如工业自动化、电源适配器和LED 驱动器。
  • 连续漏极电流(Id): 在 25°C 的环境下,该元件可以支持高达 1.8A 的连续漏极电流,这意味着它在高温条件下的性能有很好的保障。
  • 驱动电压: 10V 的驱动电压使得该元件在开启和关断过程中均表现出色,能够有效降低开关损耗和提高效率。

导通电阻

STN3N40K3 的导通电阻(Rds On)在 10V 驱动下,最大值为 3.4Ω(@ 600mA),这个值相对较低,有助于在开关状态下提高能效。这一特性使其在高频应用中表现出良好的散热性能和热管理,极大地提升了元件的可靠性。

栅极电荷与栅极电压

STN3N40K3 的栅极电荷(Qg)在 10V 时最大值为 11nC,这对于驱动电路设计至关重要。较低的栅极电荷可以减小电路的驱动功耗,提升整体系统性能。同时,Vgs 最大值为 ±30V,保证了器件在控制电压波动时的可靠性。

温度与功率

该器件的工作温度范围为 -55°C 到 150°C,允许其在苛刻环境下使用。其额定功率耗散为 3.3W(Ta),可适应于大多数现代电子产品的散热需求,这在长时间工作情况下尤其重要。

电容特性

STN3N40K3 的输入电容(Ciss)在 50V 下最大值为 165pF,提供较高的输入阻抗以及更小的开关时间,从而提升了高频性能。这使得它能够适应快速开关和高频工作的需求,适合应用于开关电源、DC-DC 转换器及其他高频电路。

封装与安装

STN3N40K3 的封装采用了 SOT-223 型表面贴装设计,体积小,适合自动化生产线埋置。该封装形式还使其在空间有限的应用中表现尤为优越,极大地方便了电路板设计和集成,同时也优化了散热表现。

应用领域

STN3N40K3 可广泛应用于多个领域,包括:

  1. 开关电源: 高频开关应用中,稳定的高压性能和低导通电阻使其成为理想选择。
  2. 工业控制: 在需要高压和高效率的工业控制应用中,STN3N40K3 的性能可以得到充分的发挥。
  3. LED 驱动: 在 LED 照明领域,相对较高的电压和高效开关性能使得该元件成为可靠的选择。
  4. 电机驱动: 适用于电机控制电路中,提高效率和降低热量发生成本。

总结

STN3N40K3 是一款设计精良的 N 通道 MOSFET,凭借其高漏源电压能力和较小的导通电阻,成为工业和消费类电子产品中不可或缺的元器件。无论是在开关电源、LED 驱动还是电机控制等各类应用中,STN3N40K3 均能提供卓越的性能和可靠性,为电路设计提供更多可能性。

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