WMSIC Electronic Components

PANJIT 1SMA4747_R1_00001

Model1SMA4747_R1_00001
PackageSMA
BrandPANJIT
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

19 specifications

Core information

Product name
PANJIT 1SMA4747_R1_00001
Type
PANJIT
Minimum package
1800

Technical parameters

Electronic Component
PANJIT
Electronic Component
1SMA4747_R1_00001
Electronic Component
1
Package
SMA
Electronic Component
Zener Diode
Electronic Component
0.09g
Electronic Component
1
(Zzk)
750Ω
(Zzt)
22Ω
Electronic Component
BM0265431482
Diode
1
Power Dissipation(Pd)
1W
Electronic Component
19V~21V
Electronic Component
50℃~+150℃
Electronic Component
1800

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

PANJIT 1SMA4747_R1_00001稳压二极管产品概述

PANJIT(强茂)1SMA4747_R1_00001是一款独立式表面贴装稳压二极管,采用SMA(DO-214AC)封装,核心针对20V电压稳定需求设计,具备宽温适应性、低漏电流、高稳压精度等特点,广泛适用于工业控制、消费电子、电源模块等领域的电压基准或过压保护场景。

一、核心定位与设计目标

该器件定位为小功率稳压基准器件,聚焦解决电路中20V左右电压的稳定需求,通过优化反向击穿特性与封装设计,平衡了体积、功耗与稳压性能,满足高密度PCB设计对小型化器件的要求,同时适应宽温环境下的长期可靠工作。

二、关键电气参数深度解析

2.1 稳压核心特性

  • 标称稳压值20V:在额定稳压电流下,输出电压稳定在20V基准值,满足多数电路对20V电压的精准需求;
  • 稳压范围19V~21V:覆盖±5%的公差区间,适配不同电路对电压精度的弹性要求,无需额外校准即可满足基础设计;
  • 动态阻抗Zzt=22Ω:稳压工作状态下阻抗极低,输入电压或负载变化时,输出电压波动极小,稳压精度优于同类常规器件;
  • 反向击穿前阻抗Zzk=750Ω:在15.2V反向偏置(未击穿)区间阻抗较高,进一步降低漏电流对电路的干扰。

2.2 功耗与电流控制

  • 最大耗散功率Pd=1W:允许的最大功率损耗,需结合稳压电流(Izt)与稳压值计算,确保电路设计中不超过此限值;
  • 反向漏电流[email protected]:未击穿状态下漏电流仅100nA,属于极低水平,可有效降低待机功耗,适配低功耗电路设计。

2.3 宽温环境适应性

  • 工作结温范围-50℃~+150℃:覆盖工业级宽温区间,可稳定工作于寒冷户外(如-50℃)、高温设备内部(如150℃)等极端环境,无需额外散热设计即可满足多数场景需求。

三、封装与物理特性

采用SMA(DO-214AC)表面贴装封装,具备以下优势:

  • 小型化设计:尺寸紧凑(典型值:2.8mm×1.6mm×1.1mm),节省PCB空间,适配高密度电路布局;
  • 贴装便捷性:符合SMT自动化生产要求,支持高速贴装,降低生产工艺复杂度;
  • 独立式配置:无并联/串联结构,使用灵活,可根据电路需求单独布局。

四、典型应用场景

该器件因稳压精度高、体积小、宽温适应,广泛应用于:

  1. 电源基准电压源:为运算放大器(运放)、模数转换器(ADC)、微控制器(MCU)提供稳定的20V参考电压,确保信号采集与处理精度;
  2. 过压保护电路:当输入电压超过21V时,稳压管反向击穿,钳位后级电压至19V~21V,保护敏感器件免受过压损坏;
  3. 小型电源模块:如升压电路(5V→20V)的后级稳压环节,稳定输出电压;
  4. 工业控制电路:适应工业现场的宽温、高湿度环境,用于传感器供电稳压或信号基准;
  5. 消费电子辅助电源:如机顶盒、路由器、智能家居设备中的低功耗稳压电路,降低待机功耗。

五、品牌与品质保障

PANJIT(强茂)作为专业半导体器件制造商,1SMA4747_R1_00001具备以下品质优势:

  • 环保合规:符合RoHS、REACH等国际环保标准,无铅无镉,适配绿色电子产品设计;
  • 可靠性认证:通过ISO 9001质量管理体系认证,产品经过温度循环、湿度老化、反向击穿寿命测试等严格验证,批量一致性好;
  • 长期稳定:低漏电流、宽结温设计确保长期工作无性能衰减,适合对可靠性要求高的场景(如工业设备、车载辅助电路)。

该器件以高性价比、高可靠性适配中低端稳压需求,是电路设计中20V电压稳定的优选器件。

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