WMSIC Electronic Components

PANJIT 1N4748A-G_AY_10001 1N4748A

Model1N4748A-G_AY_10001
PackageDO-41
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 1N4748A-G_AY_10001
Type
PANJIT
Minimum package
2500 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
1N4748A-G_AY_10001
Electronic Component
1
Package
DO-41
Electronic Component
Zener Diode
Electronic Component
0.343g
Electronic Component
1
(Zzk)
750Ω
(Zzt)
23Ω
Electronic Component
BM0265820324
Diode
1
Current(Ir)
100nA
Power Dissipation(Pd)
1W
Electronic Component
20.9V~23.1V
Electronic Component
55℃~+150℃

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

1N4748A-G_AY_10001稳压二极管产品概述

一、产品定位与核心特性

1N4748A-G_AY_10001是台湾强茂(PANJIT)推出的轴向独立式稳压二极管,属于1N47系列稳压管的主流型号,核心定位为中等电压范围的精密稳压元件。其核心特性可概括为:

  • 稳定的22V标称稳压值,公差范围窄(±5%内);
  • 超低反向漏电流(100nA),静态功耗极小;
  • 1W耗散功率满足中小功率稳压需求;
  • 宽工作结温(-55℃~+150℃)适配工业级环境;
  • DO-41小体积封装,便于高密度PCB布局。

二、关键电气参数解析

该型号的电气参数经过严格校准,关键指标直接决定其应用场景:

  1. 稳压值特性:标称稳压值22V,实测范围20.9V~23.1V(公差±5%),符合稳压管行业标准公差,能为电路提供可靠的电压基准;
  2. 反向漏电流:最大反向电流仅100nA,远低于普通稳压管(通常μA级),可有效降低电路静态功耗,尤其适合对功耗敏感的精密仪器;
  3. 功率与电流:最大耗散功率1W,结合22V稳压值,计算得最大工作电流约45mA(Imax=Pd/Vz),满足中小功率稳压电路的电流需求;
  4. 动态阻抗:测试电流下动态阻抗Zzt=23Ω(稳压性能良好),最大电流下Zzk=750Ω(电流波动较大时阻抗略有上升),适合电流变化范围较小的场景;
  5. 温度特性:工作结温覆盖-55℃至+150℃,符合工业级器件要求,可在高温(如汽车发动机舱)或低温(如户外设备)环境稳定工作。

三、封装与可靠性设计

1N4748A-G_AY_10001采用DO-41轴向封装,具有以下设计优势:

  • 体积小巧:封装尺寸约φ2.7mm×L5.2mm,适合高密度PCB布局,可用于小型化设备(如便携式仪器、汽车传感器模块);
  • 封装材料:采用玻璃钝化封装,抗机械冲击、耐温性能优异,避免焊接或使用中因温度冲击导致性能下降;
  • 品牌可靠性:强茂作为专业半导体厂商,产品通过ISO9001、IATF16949认证,符合RoHS环保要求,批次一致性好,降低量产选型风险。

四、典型应用场景

结合参数特性,该型号主要应用于以下场景:

  1. 精密电源基准:工业PLC模拟量输入模块、高精度传感器供电基准(低漏电流保证基准稳定);
  2. 中小功率稳压:12V/24V电源系统辅助稳压(输入高于22V时稳定输出22V);
  3. 汽车电子:胎压监测系统(TPMS)、车载摄像头电源稳压(宽温适配汽车舱内外环境);
  4. 通信设备:小型基站偏置电源、光纤收发器供电稳压(小体积便于设备小型化);
  5. 消费电子:便携式充电器输出过压保护(22V稳压值可作为过压阈值参考)。

五、选型与使用注意事项

工程师在选型和使用时需注意以下要点:

  1. 电流限制:实际工作电流需控制在45mA以内(避免超过1W耗散功率),负载电流大时需并联器件或搭配功率管;
  2. 焊接规范:焊接温度不超过260℃,时间不超过5秒,避免高温损坏芯片;
  3. 静电防护:为静电敏感元件,存储/运输需防静电包装,焊接时佩戴防静电手环;
  4. 环境适配:若环境温度超出-55℃~+150℃,需更换宽温器件(如军品级);
  5. 同系列区别:1N4747(20V)、1N4749(24V)为相邻型号,选型需匹配实际稳压需求。

该型号凭借稳定的性能和高可靠性,成为工业控制、汽车电子等领域中等电压稳压的常用选择。

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