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RALEC RTT25R068FTE
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RALEC RTT25R068FTE
- Type
- RALEC
- Minimum package
- 4000 圆盘
Technical parameters
- Power
- 1W
- Electronic Component
- Electronic Component
- Electronic Component
- RALEC
- Electronic Component
- RTT25R068FTE
- Electronic Component
- 1
- Package
- 2512
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.061g
- Electronic Component
- 68mΩ
- Electronic Component
- 1
- Electronic Component
- BM0265147775
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 200V
- Electronic Component
- ±500ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RALEC旺诠RTT25R068FTE 厚膜贴片电阻产品概述
一、产品定位与核心参数
RTT25R068FTE是RALEC旺诠针对中功率场景电流检测、限流、分压需求推出的低阻值厚膜贴片电阻，核心参数精准匹配工业/汽车电子的实用要求：
- 阻值：68mΩ（毫欧级低阻，适配大电流采样）
- 精度：±1%（满足常规工程设计的阻值偏差需求）
- 额定功率：1W（支持持续中功率负载）
- 最大工作电压：200V（高压场景绝缘可靠性保障）
- 温度系数（TCR）：±500ppm/℃（宽温下阻值稳定性达标）
- 工作温度范围：-55℃~+155℃（覆盖汽车、工业级温区）
二、封装与物理特性
产品采用2512标准贴片封装（尺寸约6.4mm×3.2mm），适配常规SMT自动化贴装产线，无需特殊工装；核心采用厚膜陶瓷工艺：
- 陶瓷基板兼具热传导性与抗腐蚀性，可快速散发热量，避免局部过热；
- 厚膜工艺平衡了“低阻量产成本”与“电气稳定性”，比薄膜电阻更适合中低端批量应用，比碳膜电阻抗温湿度能力更强。
三、电气性能核心优势
低阻电流检测适配性
68mΩ毫欧级阻值是电流采样的理想选择：若电路电流为2A，仅产生0.136V压降，远低于常规运放输入范围，可直接通过普通差分运放精准采集电流信号，无需额外放大电路，简化设计成本。功率与电压的平衡设计
1W额定功率支持持续负载（如1A电流下功率仅0.068W，余量充足）；200V最大工作电压则确保高压场景绝缘可靠性（需注意：实际使用需满足P≤1W，避免超功率损坏）。宽温下的阻值稳定性
±500ppm/℃的TCR意味着温度从-55℃变化到+155℃（温差210℃）时，阻值变化仅约0.105%，多数场景可忽略或通过软件校准补偿，无需额外温控设计。
四、环境适应性与可靠性
RTT25R068FTE的宽温范围覆盖汽车电子（车载BMS、电机控制器）、工业控制（变频器、电源模块）的典型环境；厚膜陶瓷工艺抗湿性、抗腐蚀性优于普通电阻，可在潮湿、多尘的工业场景长期稳定工作；此外，产品通过RALEC常规可靠性测试（负载寿命测试、温度循环测试），确保量产一致性。
五、典型应用场景
- 汽车电子：电池管理系统（BMS）单体电池电流检测、车载充电器（OBC）限流保护、电机驱动电流采样；
- 工业控制：开关电源过流保护、变频器电流反馈、PLC模块功率限流；
- 通信设备：基站电源电流检测、服务器电源输出限流；
- 消费电子：大功率LED驱动限流、电动工具电池保护电路。
六、品牌与量产保障
RALEC旺诠是全球知名被动元器件制造商，其厚膜电阻以“高一致性、低成本、可靠性强”著称；RTT25R068FTE符合RoHS、REACH环保标准，支持批量采购，可满足工业客户的量产需求。
该产品通过“低阻+中功率+宽温”的组合，精准命中工业/汽车电子的实用痛点，是替代同类进口低阻电阻的高性价比选择。
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