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FH RC-02K2491FT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- FH RC-02K2491FT
- Type
- FH
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 62.5mW
- Electronic Component
- Electronic Component
- Electronic Component
- FH
- Electronic Component
- RC-02K2491FT
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.022g
- Electronic Component
- 2.49kΩ
- Electronic Component
- 10
- Electronic Component
- BM0262574033
- Electronic Component
- ±100ppm/℃
- Resistor Type
- Resistor
- Electronic Component
- Electronic Component
- Electronic Component
- 10000
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RC-02K2491FT 产品概述
一、产品简介
RC-02K2491FT 是风华（FH）出品的一款贴片厚膜电阻，封装为 0402（公制 1005）。标称阻值为 2.49 kΩ，阻值公差 ±1%，额定功率 62.5 mW，温度系数（TCR）±100 ppm/℃。该器件适合对体积、成本和可靠性有要求的消费电子、移动终端及一般精密分压、滤波电路等场合。
二、主要特性
- 厚膜工艺，稳定性良好，成本优势明显。
- 阻值：2.49 kΩ，公差 ±1%，适用于要求中等精度的应用。
- 额定功率：62.5 mW（0402 封装典型值），实际使用应考虑功率热降额。
- 温度系数：±100 ppm/℃，在温度变化下保持相对稳定的阻值。
- 体积小、适合高密度贴装与自动贴片生产。
三、典型应用场景
- 移动设备中的分压器、偏置网络与滤波回路；
- 物联网终端、传感器前端的阻值设定；
- PCB 上的低功耗信号处理与阻抗匹配；
- 大批量消费电子产品中替代更高成本的薄膜电阻。
四、使用与设计要点
- 功率与温升：0402 封装的额定功率为 62.5 mW，建议在实际应用中留有安全余量（如不超过额定功率的 50–70%），并考虑环境温度及相邻器件的热影响。
- 温度漂移：±100 ppm/℃ 表明在宽温范围内阻值会随温度线性变化，需在精密测量或高稳定性电路中评估误差累积。
- PCB 布局：建议确保焊盘与过孔的热分布均匀，避免单侧大铜面积直接连接至电阻端以免产生热偏差；0402 元件焊盘间距应符合制造商推荐尺寸以保证良好焊点形成。
- 焊接工艺：兼容常规回流焊工艺，遵循温度曲线规范，避免长时间在高温段暴露导致阻值漂移或机械应力。
- 测试与清洁：回流后建议检测阻值与外观；如进行水洗，选用兼容的清洁剂并保证完全干燥，防止残留物影响长期可靠性。
五、可靠性与存储
- 厚膜电阻在标准环境下可靠性良好，但应避免潮湿、高温及化学腐蚀环境。
- 存放时建议密封防潮包装，长时间存放应控制在制造商规定的储存条件内并避免机械振动或挤压。
六、订购信息与替代件
- 型号：RC-02K2491FT；品牌：FH（风华）；封装：0402；阻值：2.49 kΩ；公差：±1%。
- 选型时可根据品质与成本权衡选择同阻值、相近 TCR 的其他厂商 0402 厚膜或薄膜替代件，精度或温漂要求较高的场合建议采用薄膜或低 TCR 器件。
以上为 RC-02K2491FT 的产品概述与设计要点，供电路设计与元件选型参考。如需完整数据手册、回流焊温度曲线或封装尺寸图，请告知，我可协助提供或查找相应资料。
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