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Vishay CRCW1206470RFKEA Resistor CRCW1206470RFKEA
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- VISHAY CRCW1206470RFKEA
- Type
- VISHAY
- Minimum package
- 5000 卷
Technical parameters
- Power
- 250mW
- Electronic Component
- VISHAY
- Electronic Component
- CRCW1206470RFKEA
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.034g
- Electronic Component
- 470Ω
- Electronic Component
- 1
- Electronic Component
- BM0246759634
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 200V
- Electronic Component
- ±100ppm/℃
- Resistor Type
- Resistor
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
CRCW1206470RFKEA 产品概述
一、产品基本信息
CRCW1206470RFKEA 为 VISHAY（威世）出品的厚膜片式电阻，封装为 1206（3225英寸），标称阻值 470Ω，精度 ±1%，额定功率 1/4W（250mW），最大工作电压 200V。温度系数为 ±100ppm/℃，工作温度范围为 -55℃ 到 +155℃。常见描述为 “RES SMD 470 OHM 1% 1/4W”。
二、主要特点与性能
- 厚膜工艺，结构稳定、成本适中，适合批量应用。
- ±1% 精度满足精密分压、信号处理等对阻值一致性有要求的电路。
- ±100ppm/℃ 的温度系数属于中等稳定性水平，在温度变化环境下阻值漂移可控。
- 宽温工作范围（-55℃ ～ +155℃）提高了在工业环境下的可靠性。
- 额定功率 250mW 与 200V 的最高工作电压适用于中低功率信号和偏置网络。
三、典型应用场景
- 电压分压器、偏置网络与阻抗匹配；
- 信号处理与滤波电路中的阻值元件；
- 消费电子、工业控制及通信设备的通用去耦与限流电路；
- 不建议用于高功率或精密温度敏感的电流检测场合（若需高精度电流检测，应选用低阻值和低 TCR 的合适电阻）。
四、选型与使用建议
- 若电路对温度漂移敏感，可考虑 TCR 更低（例如 ±25～±50ppm/℃）的产品；
- 在高环境温度下应进行功率降额，避免长期在高温下接近额定功率工作；
- 对于对阻值很敏感的电路，布局时尽量减小自热及邻近发热元件影响；
- 焊接与回流过程中建议遵循厂商推荐的无铅回流温度曲线以保证可靠性。
五、可靠性与包装
VISHAY 的 CRCW 系列有稳定的生产与质量控制，常见符合 RoHS 要求，并提供卷带（reel）或管装等商用封装方式。订购时请确认完整料号与包装单位（例如带卷标的“RF”或“KEA”后缀含义）以符合 SMT 贴装流程。
六、检验与维修注意
- 贴装后使用万用表或 LCR 仪器进行阻值抽检，允许考虑测量环境温度对读数的影响；
- 避免过度机械应力与重复弯折，焊接后冷却要自然，避免强制冷却导致热应力；
- 若需长期稳定性验证，建议做温度循环与耐湿测试以评估具体应用环境下的表现。
总结：CRCW1206470RFKEA 是一款通用性强、加工与贴装方便的厚膜 SMD 电阻，适用于大多数中等精度与中低功率的电子设计。选择时请结合电路的温度条件、功率余量与精度需求进行评估，并参照 VISHAY 官方数据手册以获取详细工艺与回流参数。
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