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Nexperia 1N4729A,113 1N4729A
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- Nexperia 1N4729A, 113
- Type
- NEXPERIA
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- NEXPERIA
- Electronic Component
- 1N4729A,113
- Electronic Component
- 1
- Package
- DO-41
- Electronic Component
- Zener Diode
- Electronic Component
- ±5%
- Electronic Component
- 0.33g
- Electronic Component
- 1
- (Zzt)
- 10Ω
- Electronic Component
- BM0227551209
- Diode
- 1
- Current(Ir)
- 100uA@1V
- Power Dissipation(Pd)
- 1W
- 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.
1N4729A,113 产品概述
一、简介
1N4729A,113 是 Nexperia（安世）生产的一款单只 Zener 二极管，标称稳压值为 3.6V，公差 5%，额定耗散功率 1W，封装为常见的 DO‑41 轴向引线封装。该器件适合在小功率场合作为稳压参考或限压元件使用，结构简单、成本低、易于安装。
二、主要电气参数
- 稳压值（标称）：3.6V，公差 ±5%（即约 3.42V–3.78V）
- 反向电流 Ir：100 μA @ 1V（在低反向电压点的泄漏电流指标）
- 耗散功率 Pd：1W（最大耗散，需注意热沉与环境温度）
- 阻抗 Zzt：10 Ω（动态阻抗，表征在测试电流下的交流稳定性）
- 封装：DO‑41，轴向 2 引脚，便于手工焊接与波峰/选择性回流工艺
三、器件特性与优势
1N4729A 提供稳定的低电压 Zener 参考，动态阻抗较低（10 Ω），意味着在工作电流波动时电压保持较好。DO‑41 封装热容较大，允许短时吸收较高能量，适合板级稳压及低能量浪涌钳位。Nexperia 品牌保证一致性和可靠性，适合量产应用。
四、典型应用场景
- 低功耗电路的基准电压或稳压模块（通过串联限流电阻工作）
- 放大器或比较器参考源、偏置电路
- 对低能量瞬态或反向过压的板级钳位保护
- 教学、原型开发与维修中常用的通用稳压元件
五、使用建议与注意事项
- 避免在器件上长期施加 1W 的最大耗散，需按环境温度进行功率降额并考虑散热路径。
- 实际稳压电流应通过串联电阻设定，避免过流导致温升和参数漂移。
- Zener 噪声和温度系数会影响精密参考，如需高精度请选用低噪声或温漂更低的专用参考源。
- 安装时注意极性与焊接温度对器件影响，轴向封装需避免过度弯折引脚导致机械损伤。
- 在需要更高功率或更低阻抗时，应选择更高额定功率或更低 Zt 的型号。
六、选型要点
选择 1N4729A,113 时，若目标是板级、低成本的 3.6V 参考或限压，且工作电流处于中低档（几十 mA 或更低），该器件是常见且可靠的选择。若系统要求更高精度、更低噪声或更高功耗，应参考更高等级的稳压器或专用基准源以满足严苛指标。
总体而言，1N4729A,113 以其稳定的 3.6V 标称、1W 的功率等级和成熟的 DO‑41 封装，在小功率稳压与板级保护设计中具有良好的实用性与成本效益。
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