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Vishay CRCW04025K10FKED Resistor CRCW04025K10FKED
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- VISHAY CRCW04025K10FKED
- Type
- VISHAY
- Unit
- Electronic Component
- Minimum package
- 10000 卷
Technical parameters
- Power
- 63mW
- Electronic Component
- Electronic Component
- Electronic Component
- VISHAY
- Electronic Component
- CRCW04025K10FKED
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.012g
- Electronic Component
- 5.1kΩ
- Electronic Component
- 1
- Electronic Component
- BM0230858966
- 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.
CRCW04025K10FKED 产品概述
一、主要参数与性能
CRCW04025K10FKED 为 VISHAY（威世）生产的厚膜贴片电阻，规格特点明确：标称阻值 5.1 kΩ（5K10），精度 ±1%，额定功率 1/16W（约 63 mW），额定工作电压 50 V，温度系数（TCR）±100 ppm/℃，工作温度范围 -55 ℃ 至 +155 ℃，封装尺寸 0402。厚膜工艺在小尺寸与成本之间提供了较好的折衷，适用于空间受限且对精度、温漂有中等要求的电子产品。
二、结构与封装
0402（公制 1005）封装为超小型表面贴装，适用于高密度 PCB 布局。厚膜电阻采用陶瓷基板与印刷电阻膜烧结而成，端接电极通过金属化处理，常以卷带（tape and reel）形式供应，便于自动贴装。物理尺寸小但热容量受限，散热能力主要依赖于焊盘与 PCB 铜量。
三、典型应用场景
- 便携式电子设备、手机与穿戴设备中的分压、偏置与信号阻抗设置。
- 工业控制与仪表中对体积与成本敏感的电阻网络。
- 汽车电子内的非关键参考与滤波电路（需注意环境温度与可靠性要求）。
该型号在对精度要求 1% 且功率需求较低的场合表现良好。
四、设计与选型建议
- 功率与电压限制：名义功率 63 mW 为器件在规定环境下的最大耗散能力，按 P = V^2/R 可计算在该阻值下的最大允许电压约为 17.9 V（sqrt(0.063×5100) ≈ 17.9 V）。虽然器件标称工作电压为 50 V，但在实际电路设计中仍应保证不会因功率耗散而过热。
- 温度漂移：TCR ±100 ppm/℃ 意味着每升高 100 ℃，阻值变化约 1.0% 左右，长期精度受温度循环影响，需要在高精度场合考虑配对或采用更低 TCR 的薄膜电阻。
- PCB 设计：提升焊盘铜面积或采用散热过孔可改善散热，从而提高可用功率；但过大铜量在回流焊时可能引起焊接应力差异，应与工艺工程师协同优化。
- 环境与可靠性需求高时，考虑使用更高功率或高稳定性电阻型号。
五、焊接与可靠性注意事项
推荐采用潮湿控制与标准回流焊工艺进行贴片安装，遵循 VISHAY 的焊接曲线规范。0402 封装对机械应力较敏感，避免在板上进行强力弯曲或机械碰撞。器件工作温度范围宽（-55 ～ +155 ℃），适应多数商用与工业环境；长期漂移与寿命受焊接温度、循环热应力与工作偏置影响，常规应用下可靠性良好。
六、采购与替代方案
该型号为 VISHAY CRCW0402 系列的常见规格，通常以卷带供应，适配自动化贴装。若需更低温漂或更高功率，可考虑同尺寸的薄膜或更大封装（0603、0805）型号；若需更高电压容限或更严格的寿命验证，则应选择专用功率或高稳定性系列。在计划替代时，确保新型号的 TCR、额定功率、最大工作电压与温度范围满足系统要求。
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