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ST 1N4759APF Zener diode 1N4759APF
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ST 1N4759APF
- Type
- ST
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ST
- Electronic Component
- 1N4759APF
- Electronic Component
- 1
- Package
- DO-41
- Electronic Component
- Zener Diode
- Electronic Component
- 0.223g
- Electronic Component
- 1
- (Zzk)
- 2kΩ
- (Zzt)
- 125Ω
- Electronic Component
- BM0264576005
- Diode
- 1
- Current(Ir)
- [email protected]
- Power Dissipation(Pd)
- 1W
- Electronic Component
- 58.9V~65.1V
- 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.
1N4759APF稳压二极管产品概述
一、产品基本信息
1N4759APF是ST（先科）品牌推出的轴向引线稳压二极管，采用DO-41封装，符合无铅环保要求，是一款小功率、高稳压值的通用稳压器件。该器件针对62V左右的稳压需求设计，凭借低漏电流、稳定的动态阻抗等特性，在电源稳压、过压保护等场景广泛应用。DO-41封装为轴向双引线结构，体积小巧（直径约2.7mm，长度约4.3mm），便于通孔焊接安装，适配多数PCB布局需求。
二、核心电性能参数
1N4759APF的电性能参数经过严格校准，关键指标如下：
- 稳压值：标称稳压值62V，实际工作范围为58.9V~65.1V（偏差±5%），满足普通稳压场景的精度要求；
- 反向漏电流：反向偏置电压47.1V（低于标称稳压值）时，漏电流仅5uA，低漏电流可减少待机功耗，提升电路效率；
- 耗散功率：最大允许耗散功率1W，属于小功率稳压管范畴，适合负载功率≤1W的电路（如小型仪器、LED辅助驱动等）；
- 阻抗特性：动态阻抗Zzt=125Ω（额定电流下测试），测试阻抗Zzk=2kΩ，低动态阻抗意味着工作电流变化时，稳压值波动小，性能稳定可靠。
三、封装与可靠性设计
- DO-41封装特点：轴向双引线设计，引脚直径与间距符合行业标准，支持手工焊接或自动化贴装；封装材料为耐高温塑料，可承受**-55℃~150℃**的工作温度范围，适应不同环境温度变化；
- 环保与可靠性：无铅化设计符合RoHS、REACH等国际环保标准，避免有害物质污染；器件经过老化测试，长期工作失效率低，可满足工业级/消费级产品的长期使用需求。
四、典型应用场景
- 电源电路稳压：用于线性直流电源输出端，稳定输出62V左右电压，适配小型电子设备（如便携式仪表、微型控制器电源）；
- 过压保护：并联在敏感电路（如单片机IO口、传感器模块）输入端，电压尖峰超过62V时反向击穿导通，钳位电压保护电路；
- 基准电压源：作为低成本电压基准，为模拟电路（如运放偏置、ADC参考）提供稳定的62V参考，替代复杂基准芯片；
- 信号调理：在高压信号电路中调整偏置电压，确保信号幅值稳定在安全范围内（如高压传感器信号预处理）。
五、选型与使用注意事项
- 功率匹配：实际耗散功率需≤1W，公式为Pd=Vzt×Iz（Iz为工作电流），需根据负载电流计算限流电阻，避免过载；
- 反向偏置要求：必须工作在反向偏置状态（阴极接高电位、阳极接低电位），正向偏置仅为普通二极管，无法稳压；
- 散热设计：DO-41封装散热面积有限，若接近1W功耗，需增加PCB散热铜箔、避免密集布局，防止器件过热；
- 参数验证：批量使用前抽样测试稳压值、漏电流，确保与规格书一致，避免参数偏差影响电路性能。
1N4759APF凭借高性价比、稳定的稳压性能，成为62V小功率稳压场景的常用选择，适用于多数消费电子、工业控制等领域的基础稳压需求。
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