WMSIC Electronic Components

ST STTH110UFY

ModelSTTH110UFY
PackageSMBflat
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ST(STMicroelectronics) STTH110UFY
Type
ST
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST(STMicroelectronics)
Electronic Component
STTH110UFY
Electronic Component
1
Package
SMBflat
Electronic Component
Fast Recovery / High-Efficiency Diode
Electronic Component
0.194g
Electronic Component
1
Electronic Component
BM0265105909
Current
1A
Diode
1
Current(Ir)
5uA@1kV
(Vf)
1.7V@1A
Electronic Component
40℃~+175℃
Electronic Component
Electronic Component
Electronic Component
5000

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

ST意法半导体STTH110UFY快恢复二极管产品概述

一、产品定位与核心特性

STTH110UFY是ST(意法半导体)推出的快恢复/高效率硅二极管,针对中高压、高频整流及续流场景优化设计,采用SMBflat(DO-221AA)贴片封装,兼具小体积、低损耗、高可靠性等特点,广泛适配工业电源、逆变器、电机驱动等领域。其核心特性可概括为:低正向压降、快反向恢复、高反向耐压、宽工作温度范围,满足高密度、高效率的电路设计需求。

二、关键电气参数详解

该器件的电气参数精准覆盖中高压高频应用的核心需求,关键参数如下:

  • 正向压降(Vf):1.7V(典型值,@1A直流电流)—— 相比普通硅二极管,低正向压降可显著减少导通时的功率损耗,提升电源转换效率(尤其在连续负载场景下)。
  • 直流反向耐压(Vr):1000V(额定值)—— 支持中高压场景的反向截止,满足AC220V/380V整流电路的电压裕量需求,避免器件击穿。
  • 反向漏电流(Ir):5μA(典型值,@1kV反向电压)—— 漏电流极小,反向截止时功率损耗可忽略,进一步提升电路效率与可靠性。
  • 反向恢复时间(Trr):75ns(典型值)—— 属于快恢复二极管范畴,远快于普通硅整流管(通常μs级),大幅降低高频开关过程中的损耗,适配kHz级以上的开关电源、PFC电路。
  • 额定整流电流(If):1A(直流值)—— 满足小功率至中功率电路的持续电流需求,覆盖多数消费电子与工业电源场景。
  • 非重复峰值浪涌电流(Ifsm):20A(典型值)—— 具备较强的脉冲耐受能力,可应对电源启动、负载突变等瞬间大电流冲击,提升电路抗干扰性。
  • 工作结温范围:-40℃至+175℃—— 宽温设计,适配工业级环境(如高温车间、户外设备)及极端温度场景,无需额外散热冗余。

三、封装与可靠性设计

STTH110UFY采用SMBflat(DO-221AA)贴片封装,具有以下优势:

  • 小体积高密度:SMB封装尺寸紧凑(约2.4×3.8mm),适合小型化产品(如便携式电源、紧凑型逆变器)的PCB布局,降低产品整体体积。
  • 散热性能优化:封装设计强化了热传导路径,结合175℃的高结温上限,可有效散发热量,避免器件过热失效。
  • 可靠性保障:ST成熟的半导体工艺确保器件一致性,宽结温、高浪涌能力及低漏电流设计,使其在振动、温度波动等 harsh环境下仍能稳定工作。

四、典型应用场景

该器件的参数特性使其适配多种高频中压应用:

  1. 开关电源(AC/DC、DC/DC):作为整流桥或续流二极管,利用快恢复特性减少开关损耗,提升电源效率(如LED驱动电源、笔记本适配器)。
  2. 功率因数校正(PFC)电路:续流管或整流管,75ns的Trr适配PFC的高频工作(通常几十kHz),降低EMI干扰与开关损耗。
  3. 逆变器:太阳能逆变器、UPS逆变器的输出整流或续流,1kV耐压满足110V/220V AC输出的电压需求。
  4. 工业电机驱动:电机驱动电路的续流二极管,宽结温及高浪涌能力适配工业环境的振动与温度波动。
  5. 消费电子:智能家居、便携式设备的高效电源模块,小体积封装契合产品小型化趋势。

五、性能优势与市场价值

相比同规格普通硅整流管,STTH110UFY的核心优势在于高频性能与效率的平衡:

  • 快恢复时间(75ns)解决了普通硅管高频损耗大、EMI高的问题,适配现代高频电源设计;
  • 低正向压降(1.7V@1A)减少导通损耗,提升电源转换效率(可降低20%以上的导通损耗);
  • 1kV耐压覆盖中高压应用,无需并联高压器件,简化电路设计与成本;
  • SMB封装小体积,降低产品尺寸与物料成本,适合量产需求。

ST的品牌背书及可靠的工艺,使其成为工业、消费电子等领域中高压高频整流的高性价比选择,适合追求效率、可靠性与小型化的电路设计。

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