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VISHAY CRCW12062K49FKEA
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- VISHAY CRCW12062K49FKEA
- Type
- VISHAY
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- VISHAY
- Electronic Component
- CRCW12062K49FKEA
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.034g
- Electronic Component
- 2.49kΩ
- Electronic Component
- 1
- Electronic Component
- BM0246759136
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 200V
- 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.
CRCW12062K49FKEA 产品概述
一、产品简介
CRCW12062K49FKEA 为 VISHAY（威世）品牌的厚膜贴片电阻，封装规格为 1206（英制），标称阻值 2.49 kΩ，阻值精度 ±1%，额定功率 250 mW。该型号适用于需要中等功率与较高精度的表面贴装电路，常用于信号处理、分压、偏置与滤波网络中。
二、主要特性
- 阻值：2.49 kΩ；精度 ±1%（F）
- 功率：250 mW（室温额定）
- 工作电压：最大 200 V
- 温度系数（TCR）：±100 ppm/℃，在温度变化条件下具有良好稳定性
- 工作温度范围：-55 ℃ 至 +155 ℃
- 封装：1206 SMD，适配自动贴装与回流焊工艺
- 工艺：厚膜电阻，成本与制造稳定性兼顾
三、电气与热学特性说明
厚膜工艺赋予该电阻良好的抗冲击性与可重复性。250 mW 的额定功率适合在中低功耗电路中长期工作，但在高环境温度或受限散热条件下需进行功率降额（参照制造商数据手册的降额曲线）。工作电压 200 V 使其在较高电压分压及信号链中也能安全使用。±100 ppm/℃ 的 TCR 表明在温度漂移场景下阻值变化受控，适合对温度敏感的电路设计。
四、典型应用场景
- 模拟电路的分压与偏置网络
- 电源检测与取样电阻
- 滤波、电阻阵列与反馈回路
- 工业控制、通信设备与精密仪表中的通用阻值需求
- 消费电子中的信号调理电路
五、装配与使用建议
- 推荐遵循 VISHAY 的封装与焊盘设计指南，保证回流焊温度曲线与焊膏厚度满足工艺要求。
- 在高温环境或密集布板情况下应对功率进行降额，避免长期靠近额定极限运行；必要时加大散热或采用更高功率封装。
- 贴装时避免对元件施加过大机械应力（弯曲、挤压），以免引起端接损伤或焊点裂纹。
- 储存与焊接前注意防潮处理，遵循干燥包装和回流前预热流程，减少焊接缺陷。
六、可靠性与环境适配
该系列电阻在常见温湿度与热循环条件下表现稳定，工作温度覆盖 -55 ℃ 至 +155 ℃，适用于大多数工业级应用。通常可提供符合无铅/RoHS 要求的版本（具体合规信息以厂方出具的规格书和合格证为准）。
总结：CRCW12062K49FKEA 以 1206 封装、2.49 kΩ/±1% 的精度和 250 mW 的额定功率，提供了在中等功率与精度要求场景下的可靠选择。设计时注意热管理与装配规范，可在多种电子系统中实现稳定长期使用。
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