WMSIC Electronic Components

PANJIT 1N4744A-G_AY_10001 1N4744A

Model1N4744A-G_AY_10001
PackageDO-41G
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
PANJIT 1N4744A-G_AY_10001
Type
PANJIT
Minimum package
2500 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
PANJIT
Electronic Component
1N4744A-G_AY_10001
Electronic Component
1
Package
DO-41G
Electronic Component
Zener Diode
Electronic Component
0.287g
Electronic Component
1
(Zzk)
700Ω
(Zzt)
14Ω
Electronic Component
BM0257698736
Diode
1
Current(Ir)
100nA
Power Dissipation(Pd)
1W
Electronic Component
14.25V~15.75V
Electronic Component
65℃~+200℃

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

1N4744A-G_AY_10001 产品概述

一、主要特性

1N4744A-G_AY_10001 为 PANJIT(强茂)出品的独立式稳压二极管,标称稳压值 15V,稳压范围 14.25V ~ 15.75V。器件采用 DO-41G 直插封装,额定耗散功率 Pd = 1W,反向漏电流 Ir 在 11.4V 时仅 100nA,动态阻抗 Zzt = 14Ω,击穿肘部阻抗 Zzk = 700Ω。工作结温覆盖宽温区间:-85℃ 到 +200℃,适合对耐温性有较高要求的应用场景。

二、电气参数及含义

  • 标称稳压值:15V(在规定测试电流下的稳压值);稳压范围 14.25V ~ 15.75V 表示制造公差与测试条件下的电压分布。
  • 反向电流 Ir:[email protected],表明在低电压偏置下漏电极极小,适合对静态漏流敏感的电路。
  • 耗散功率 Pd:1W,表示在理想散热条件下器件能耗散的最大功率。需要注意实际工作时须考虑结-环境热阻,按温升对功率进行降额。
  • 动态阻抗 Zzt 与 Zzk:14Ω(在测试电流点)表示稳压时的小信号阻抗,越小输出越稳定;Zzk = 700Ω 反映击穿肘部在低电流区的特性,对低电流精度有影响。
  • 工作结温:-85℃~+200℃,适用于高温或严苛环境,但需结合封装及系统散热方案使用。

三、典型应用场景

  • 15V 基本参考电压源与局部稳压(小功率参考或偏置电路)。
  • 工业控制与测量仪表的电压夹位与保护、基线偏置。
  • 耐高温或宽温度范围的电子系统,如部分嵌入式设备、传感器模块。
  • 信号钳位、过压保护与浪涌吸收(注意能量与脉冲功率限制)。

四、使用注意事项与热管理

  • 连续工作电流上限应以 Pd/ Vz 估算:Imax ≈ 1W / 15V ≈ 66 mA(理论值),实际应用需考虑结-环境热阻和允许结温,通常进行降额设计。
  • 建议在电源侧加限流电阻或采用串联电流源,以避免过流导致过热。
  • DO-41G 为直插封装,PCB 上可通过扩展铜箔或加装散热垫片改善热散。
  • 高温下漏电流与稳压漂移会增加,应在热稳态下验证电路表现。
  • 若用于脉冲或瞬变抑制,需检查器件能承受的峰值脉冲功率与能量。

五、选型建议

  • 若电路要求稳压精度高且工作电流较小,注意 Zzk 较大可能在低电流区产生较大电压偏差,应选择合适的工作电流点使器件处于测试点附近。
  • 对于需更低动态阻抗或更高功率的应用,可考虑更大功耗封装或并联/替代方案(并联需保证电流分配)。
  • 在高温或极端环境下,推荐进行全温区测试以确认温漂、漏电与可靠性满足系统要求。

六、封装与机械特性

  • 封装:DO-41G(标准玻璃封装直插形式),适合手工焊接与通孔安装。
  • 适用于常规 PCB 设计与维修更换,体积小、可靠性高。

总结:1N4744A-G_AY_10001 是一枚用于 15V 等级小功率稳压与保护的通用稳压二极管,具有低漏电、宽温耐受与标准直插封装,适合在对尺寸、成本和温度耐受有要求的工业与消费类电子中作为局部稳压或保护元件使用。选型时重点关注工作电流点、热管理与低电流区的稳压特性。

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