WMSIC Electronic Components

ST 1N4727APF Zener diode 1N4727APF

Model1N4727APF
PackageDO-41
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+

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Technical data

Product details

19 specifications

Core information

Product name
ST 1N4727APF
Type
ST
Minimum package
250 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ST
Electronic Component
1N4727APF
Electronic Component
1
Package
DO-41
Electronic Component
Zener Diode
Electronic Component
0.224g
Electronic Component
1
(Zzk)
400Ω
(Zzt)
10Ω
Electronic Component
BM0264213249
Diode
1
Current(Ir)
150uA@1V
Power Dissipation(Pd)
1W
Electronic Component
2.85V~3.15V
Electronic Component
Electronic Component

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

1N4727APF稳压二极管产品概述

一、核心基本参数梳理

1N4727APF是一款小功率稳压二极管,核心参数清晰明确:标称稳压值为3V,稳压值范围覆盖2.85V~3.15V(满足±5%精度要求);反向漏电流(Ir)在反向电压1V时为150μA;动态阻抗方面,测试电流下Zzt=10Ω、Zzk=400Ω;最大耗散功率(Pd)为1W;封装采用标准DO-41轴向引线形式,品牌为ST(先科)且为无铅环保封装。这些参数是判断其应用场景与性能的关键依据。

二、封装与物理特性

该器件采用DO-41封装,属于轴向引线塑料封装,结构紧凑、尺寸小巧(直径约2.7mm,长度约4mm),便于手工插件或自动贴装(插件式),适配各类电路板的布局需求;无铅封装符合RoHS指令及国内环保标准,不含铅、镉等有害物质,可用于对环保要求较高的电子设备(如医疗、消费类电子产品)。DO-41封装的热传导性能稳定,能有效散发布器件工作时产生的热量,辅助保障其在额定功耗内的长期可靠性。

三、关键电气特性说明

  • 稳压精度与范围:2.85V~3.15V的稳压范围覆盖标称值±5%,可满足多数小功率电路对基准电压的精度需求,无需额外校准即可用于一般精度要求的场景;
  • 反向漏电流:150μA(Vr=1V)的漏电流处于较低水平,反向截止时功耗极小,不会对前级电路造成额外负载影响,提升了电路整体效率;
  • 动态阻抗:Zzt=10Ω(通常对应10mA左右的测试电流),低动态阻抗意味着当负载电流波动时,稳压值变化微小,稳压性能稳定;Zzk=400Ω(对应较小测试电流,如1mA),符合稳压管阻抗随工作电流变化的特性(电流增大,阻抗降低);
  • 功耗与电流限制:1W的最大耗散功率决定了其最大允许工作电流约为333mA(按Pd=Vz×Izmax计算),实际应用中需配合限流电阻,避免电流超过额定值导致器件损坏。

四、典型应用场景

1N4727APF因参数适配性强,广泛应用于以下场景:

  1. 电压基准源:为运算放大器、ADC/DAC、单片机等提供稳定的3V参考电压,确保信号采集、处理的精度(如工业传感器信号调理电路);
  2. 过压保护:串联限流电阻后并联在电路输入端,当电压超过3V时,稳压管击穿导通,将电压钳位在3V左右,保护后级敏感元件(如低功耗IC、传感器)免受过压冲击;
  3. 简单稳压电路:与限流电阻配合构成线性稳压电路,适用于小功率负载(如LED指示灯、小型模块电源),电路结构简单、成本低廉;
  4. 电平匹配:在3V与5V电平系统间作为参考电平,实现信号电平的兼容转换,避免电平不匹配导致的信号失真或器件损坏。

五、品牌与可靠性优势

ST(先科)作为国内知名半导体厂商,其1N4727APF稳压管经过严格的生产工艺管控,参数一致性好,批量产品的稳压值、漏电流等指标偏差均在规格书范围内;产品通过了常规可靠性测试(如温度循环、湿度老化),可在-55℃~+150℃的宽温度范围内稳定工作,适用于工业控制、消费电子、汽车电子(部分场景)等多领域;无铅封装符合国际环保标准,可满足出口产品的合规要求。

该器件凭借稳定的稳压性能、紧凑的封装及环保特性,成为小功率电路中电压基准、过压保护的常用选择。

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