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TA-I Technology RLH12FTCR680
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RLH12FTCR680
- Type
- TA-I Technology
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 1W
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- RLH12FTCR680
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- Current Sense Resistor / Shunt
- Electronic Component
- ±1%
- Electronic Component
- 0.035g
- Electronic Component
- 680mΩ
- Electronic Component
- 1
- Electronic Component
- BM0265427464
- Electronic Component
- SMD
- Electronic Component
- ±100ppm/℃
- Resistor Type
- Current Sense 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.
大毅科技RLH12FTCR680 贴片采样电阻产品概述
一、产品定位与核心价值
RLH12FTCR680是大毅科技针对中小功率电路精准电流检测推出的贴片采样电阻，核心功能是将电路电流转换为可测量的电压信号（U=IR）。该产品平衡了「低阻值精度」「中功率容量」与「紧凑封装」，适配从消费电子到工业级设备的多样化需求，无需额外校准即可实现可靠的电流监测。
二、关键性能参数深度解析
1. 阻值与精度
标称阻值680mΩ（0.68Ω），属于采样电阻常用低阻值范围（减少自身功耗对电路的干扰）；±1%精度满足大多数工业级场景需求——例如1A电流通过时，输出电压约0.68V，误差≤0.0068V，可直接用于过流保护、电流闭环控制。
2. 功率容量
额定功率1W，实际应用建议采用70%~80%降额（最大连续功率≤0.7~0.8W），既适配中小功率电路（如5V/2A电源），又能延长产品寿命，避免过热失效。
3. 温度稳定性
±100ppm/℃温度系数，表示温度每变化1℃，阻值变化百万分之一百。以-40℃~125℃工业温度范围为例，最大阻值变化量约0.011Ω（变化率≈1.65%），可在极端环境下保持电流检测准确性。
4. 封装与安装
1206贴片封装（英制3.2mm×1.6mm），兼容自动化SMT产线，焊接工艺适配回流焊（峰值240℃~260℃）、波峰焊（需控制温度），可节省PCB空间，适配小型化设备（如便携式充电器）。
三、封装与焊接可靠性
RLH12FTCR680采用大毅专利端电极设计，具备以下优势：
- 焊接结合力：端电极与PCB焊盘结合力强，减少虚焊、脱焊风险（通过IPC标准焊接可靠性测试）；
- 空间效率：相比同功率插件电阻，封装尺寸缩小60%，适配高密度电路布局；
- 产线兼容性：可与电容、电感等贴片元件同线贴装，提升生产效率。
四、环境适应性与寿命保障
大毅科技针对该产品的可靠性设计覆盖：
- 温湿度耐受：通过85℃/85%RH湿热试验（1000小时），阻值变化≤0.5%；
- 振动抗性：支持10Hz~2000Hz振动（加速度2g），适配车载电子、工业机器人等振动场景；
- 长期寿命：降额使用时MTBF（平均无故障时间）≥10^6小时，满足设备5年以上运行需求。
五、典型应用场景
- 开关电源：AC-DC适配器、DC-DC转换器的输出电流监测，配合过流保护防止电源过载；
- 小型电机驱动：直流电机、步进电机的电流闭环控制，优化扭矩输出并防止堵转；
- 电池管理系统（BMS）：小容量锂电池组（如便携式储能电源）的充放电电流检测，避免过充过放；
- 工业控制：PLC、传感器信号调理电路的电流采样，提升控制精度；
- 消费电子：智能手机充电器、移动电源的电流检测，适配快充协议动态功率调整。
该产品以高性价比、稳定可靠的特性，成为中小功率电流检测场景的主流选择，可满足多数设备的电流监测需求。
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