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UNI-ROYAL 0805W8F4703T5E
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 0805W8F4703T5E
- Type
- UNI-ROYAL
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 125mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 0805W8F4703T5E
- Electronic Component
- 1
- Package
- 0805
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.027g
- Electronic Component
- 470kΩ
- Electronic Component
- 1
- Electronic Component
- BM0257245630
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 150V
- Electronic Component
- ±100ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
0805W8F4703T5E 产品概述
一、核心参数
- 类型：厚膜贴片电阻（SMD Thick Film）
- 阻值：470 kΩ（4703 表示 470 × 10^3 Ω）
- 精度：±1%（高精度等级）
- 功率额定：125 mW（室温条件下）
- 最大工作电压：150 V
- 温度系数（TCR）：±100 ppm/℃
- 工作温度范围：-55 ℃ ～ +155 ℃
- 封装：0805（2012公制）
- 品牌：UNI-ROYAL（厚声）
二、主要特点
- 小尺寸、高密度：0805 封装适合表贴高密度布板与自动化贴装。
- 稳定性与精度兼顾：±1% 精度配合 ±100 ppm/℃ 的温度系数，适合对阻值精确度有要求的通用电路。
- 高阻值应用友好：470 kΩ 属高阻值范畴，适用于偏置、输入阻抗设定与高阻抗测量回路。
- 宽温度与耐环境能力：-55 ℃ 到 +155 ℃ 的工作范围适合工业级与汽车类温度考量（具体应参考最终产品认证）。
- 额定电压可满足中低电压场合：150 V 最高工作电压，需在设计中避免超过该值以防击穿或漂移。
三、典型应用场景
- 模拟电路：输入偏置、信号源阻抗与高阻抗滤波器。
- 测量与仪器：高阻抗测量通道、采样网络。
- 数字系统：上拉/下拉电阻（在高阻值场合），功耗敏感电路的偏置网络。
- 工业电子与通讯设备：对温漂与长期稳定性有一定要求的分压与反馈网络。
四、设计与使用建议
- 功率与电压裕量：尽管在理论上 P = V^2 / R 可计算电压承受能力，须以厂商给定的最大工作电压 150 V 为准。为保证长期可靠性，建议在实际工作中留有裕量（遵循厂商功率降额曲线）。
- PCB 布局：避免高阻值周围存在导电污染或潮气通路，保持焊盘与周边清洁，必要时增大走线与接地屏蔽以降低漏电与噪声耦合。
- 清洗与封装：波峰/回流焊兼容（建议使用无卤、低残留助焊剂），清洗后确保无导电残留物；如环境湿度高，建议做封装或涂覆保护。
- 焊接工艺：适配无铅回流工艺，建议遵循 IPC/JEDEC 推荐的温度曲线及峰值温度（参考厂方具体回流规范）。
五、可靠性与测试建议
- 在产品验证阶段，建议进行热循环、电阻稳定性（长期负载）、湿热测试和焊接可靠性测试以验证在目标应用环境下的表现。
- 对于高阻值与高精度应用，应关注接触电阻、表面污染和环境泄漏导致的漂移，必要时采用预筛选或老化测试。
六、包装与订购说明
- 常见供货形式为卷盘（Tape & Reel），适合贴片机直接上料。
- 型号示例解读（仅为便于识别）：0805（封装）-W（厚膜系列）-4703（阻值 470kΩ）-T5E（包装/版本标识），具体型号规则请以供应商数据表为准。
如需器件的详细电气特性曲线、功率降额曲线、回流焊温度建议或样品与批量报价，可提供后续进一步资料或联系 UNI-ROYAL 厂家技术文档。
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