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VISHAY CRCW040227K4FKED
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- VISHAY CRCW040227K4FKED
- Type
- VISHAY
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 62.5mW
- Electronic Component
- Electronic Component
- Electronic Component
- VISHAY
- Electronic Component
- CRCW040227K4FKED
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.006g
- Electronic Component
- 27.4kΩ
- Electronic Component
- 1
- Electronic Component
- BM0264856648
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 50V
- 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.
CRCW040227K4FKED 产品概述
一、概述
CRCW040227K4FKED 为 VISHAY（威世）CRCW 系列 0402（1005 公制）厚膜贴片电阻，标称阻值 27.4 kΩ，公差 ±1%，温度系数 ±100 ppm/℃。该器件属于小型化、通用型厚膜片式电阻，适合高密度线路板和体积受限的电子产品，常用于信号处理、分压、偏置与一般阻抗匹配场合。
二、主要技术参数
- 阻值：27.4 kΩ（27K4）
- 精度：±1%
- 功率额定值：62.5 mW（约 0.063 W，通常在 +70°C 条件下）
- 额定工作电压：50 V（注：受功率限制的电压上限按 V = sqrt(P·R) 计算约为 41.4 V）
- 温度系数（TCR）：±100 ppm/℃（约 ±0.01%/℃）
- 工作温度范围：-55℃ ～ +155℃
- 封装：0402（1.0 mm × 0.5 mm）
- 结构：厚膜片式 SMT
三、性能特点与优势
- 小尺寸、高密度：0402 封装适合空间受限及高密度贴装设计。
- 稳定性与一致性：±1% 精度和 ±100 ppm/℃ 的 TCR 能满足大多数模拟与数字电路的精度需求。
- 宽温域工作：-55℃ 到 +155℃ 的工作温度覆盖工业级应用。
- 品牌与质量保证：VISHAY 系列经过工业认证，批次一致性和可靠性高，适合批量生产使用。
四、典型应用场景
- 移动设备与消费电子的电阻分压、偏置网络。
- 嵌入式与物联网模块中信号滤波、阻抗匹配。
- 工业控制电路的常规限流与采样电阻（注意功率和电压限制）。
- 高密度 PCB 以及空间受限的便携设备。
五、选型与使用建议
- 电压与功率校验：尽管器件标称工作电压为 50 V，但在实际使用中应以功率限制计算电压上限（约 41.4 V），确保不过载。
- 温升与降额：在高温或受热源影响的板上应考虑功率降额，避免长期运行接近额定功率。
- 焊接工艺：兼容常规回流焊工艺（请参照厂商推荐的温度曲线），0402 尺寸小，建议使用合适的贴片机与焊膏以保证良好焊点。
- 若对温漂或精度有更高要求，可考虑薄膜或金属膜、低 TCR 产品，或选择更大封装以提高功率余量。
六、总结
CRCW040227K4FKED 是一款针对高密度 PCB 和常规精度需求设计的 0402 厚膜贴片电阻，具有良好的温度适应性与工业级可靠性。若电路工作条件在其电压与功率范围内，该产品能提供稳定且成本效益高的解决方案；在对温漂、长期稳定性或功率有更高要求时，建议根据具体工况选择更合适的封装或材质。
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