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Walsin WR02W1R00FAL
Configuration
1 options
Configuration
Electronic Component
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- (Walsin) WR02W1R00FAL
- Type
- WALSIN
- Unit
- Electronic Component
- Minimum package
- 15000 圆盘
Technical parameters
- Power
- 50mW
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- (WALSIN)
- Electronic Component
- WR02W1R00FAL
- Electronic Component
- 1
- Package
- 0201
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.008g
- Electronic Component
- 1Ω
- Electronic Component
- 10
- Electronic Component
- BM0227225252
- Operating Temperature
- 55℃~+125℃
- Operating Voltage
- 25V
- Electronic Component
- 200ppm/℃~+600ppm/℃
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WR02W1R00FAL 产品概述
一、产品简介
WR02W1R00FAL 为华新科（Walsin）生产的厚膜片式电阻，标称阻值 1 Ω，精度 ±1%，额定功率 1/20W（50 mW），工作温度范围 -55 ℃ ~ +125 ℃，标称工作电压 25 V，温度系数（TCR）可选范围 -200 ppm/℃ ~ +600 ppm/℃。该系列以成本效益高、批量一致性好为特点，适合一般电子产品中的通用阻值需求。
二、性能要点与注意事项
- 功率与电压关系：器件额定功率为 50 mW，但对 1 Ω 阻值，按 P=V²/R 计算，达到 50 mW 时的电压约为 0.224 V。因此尽管标注的“工作电压”为 25 V，但在实际应用中必须以功率限制为主，避免在阻值较小情况下直接施加高电压导致过热烧毁。
- 温度系数：TCR 范围较宽（-200 ~ +600 ppm/℃），不同物料批次或型号的温漂差异明显。在对温度漂移敏感的电路（如精密电流检测）中需慎重选型或采用温度补偿。
- 厚膜特性：成本低、可实现多种阻值与尺寸，但与金属箔/薄膜电阻相比，噪声和长期阻值漂移通常略高，不适合超高精度、极低温漂的场合。
三、典型应用场景
适用于一般低功率场合的限流、分压、偏置、电阻放电和阻尼用途；可用于消费电子、仪表、通信模块等对功耗要求不高且对温漂容忍的电路。若用于电流检测，应评估 TCR 与长期稳定性，必要时采用四端（Kelvin）测量或改用专用低值电阻。
四、选型与安装建议
- 在电路设计时按实际工作电压与电阻计算功耗并留有安全裕量，结合环境温度做热降额。
- 对于低阻值测量，建议采用四端接法或尽量缩短焊盘与导线长度以降低连接电阻误差。
- 焊接遵循厂商推荐的回流温度曲线（参考 IPC/JEDEC 标准），避免超温或过长加热时间；焊后可做清洗，但注意溶剂兼容性。
- 订购前确认具体封装尺寸、带卷数量及包装方式（封装信息本参数未标明）。
五、可靠性与替代方案
常规可靠性试验包括温度循环、湿热、焊接可靠性与机械冲击。若应用对温漂、长期稳定性或噪声有更高要求，建议选择金属薄膜、金属箔或专用低阻分流器件（精密电流检测电阻），以获得更低的 TCR 和更高的稳定性。
总结：WR02W1R00FAL 以其经济性和通用性适合大批量、低功率的一般用途，但在低阻值高精度或高温漂敏感的场合需谨慎评估或选择更高性能的替代件。购买与设计前请以华新科正式数据手册为准。
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