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TA-I Technology RLP25FEER300
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RLP25FEER300
- Type
- TA-I Technology
- Minimum package
- 4000 圆盘
Technical parameters
- Power
- 2W
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- RLP25FEER300
- Electronic Component
- 1
- Package
- 2512
- Electronic Component
- Current Sense Resistor / Shunt
- Electronic Component
- ±1%
- Electronic Component
- 0.084g
- Electronic Component
- 300mΩ
- Electronic Component
- 1
- Electronic Component
- BM0264549150
- Electronic Component
- SMD
- Electronic Component
- ±50ppm/℃
- 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RLP25FEER300 贴片电流采样电阻产品概述
一、产品核心定位与应用场景
大毅科技RLP25FEER300是一款低阻值高精度贴片电流采样电阻，专为电路电流检测与反馈设计，属于分流器类元器件。其核心定位是在5A~80A中等电流范围内实现稳定、准确的采样，适配工业控制、新能源、消费电子等多领域需求。
典型应用场景包括：
- 新能源电池管理系统（BMS）：电动车、储能电站的电池组充放电电流监测，防止过流、过充；
- 电源管理系统：开关电源、线性电源的输出电流限制与反馈调节，提升电源稳定性；
- 电机驱动系统：伺服电机、变频电机的电流采样，实现精确转矩控制与过载保护；
- 工业自动化：PLC、变频器的电流反馈回路，保障设备安全运行；
- 消费电子：大功率充电器、移动电源的电流检测，优化充电效率。
二、关键参数与性能指标
RLP25FEER300的参数围绕“低阻、高精度、稳定”设计，核心指标如下：
参数项 规格值 实际意义说明 类型 电流采样电阻 区别于普通电阻，专为电流检测优化，低阻值降低功耗与压降 阻值 300mΩ（0.3Ω） 低阻值适配大电流采样，如80A电流时压降仅24mV，在运放可检测范围内 精度 ±1% 初始阻值误差控制在±1%，满足工业级、消费电子的常规采样精度要求 额定功率 2W（25℃） 25℃环境下持续工作功率，温度升高需降额（如70℃时约1.5W） 温度系数（TCR） ±50ppm/℃ 温度每变化1℃，阻值变化±50×10⁻⁶，宽温范围（-40℃~125℃）下误差可控 安装方式 贴片（SMD） 无引脚设计，适配自动化贴装，减少寄生电感对高频采样的干扰 封装 2512 英制封装尺寸（6.4mm×3.2mm），体积小巧，适合高密度PCB设计三、封装与工艺设计特点
RLP25FEER300采用2512贴片封装，结合大毅科技的合金箔工艺，具备以下优势：
- 合金箔电阻体：采用锰铜合金箔作为核心材料，相比金属膜电阻，温度系数更低、长期稳定性更强，阻值漂移极小；
- 低寄生电感：无引脚贴片设计，电阻体与PCB直接焊接，寄生电感<1nH，适合高频（<100kHz）电流采样场景；
- 散热优化：陶瓷基底导热性良好，配合PCB焊盘增加散热铜箔（如0.5mm²以上），可有效散发热量，避免功率过载；
- 抗环境干扰：阻燃环氧树脂包封，具备抗振动（10G~20G）、抗潮湿（湿度<95%）能力，适合恶劣工业环境。
四、应用优势与实际价值
- 宽温下高精度采样：±1%初始精度+±50ppm/℃ TCR，在-40℃~85℃（工业级典型温度）下，总阻值误差≤±1.3%，避免温度变化导致的电流测量偏差；
- 低损耗高效能：300mΩ低阻值使电流采样时的压降与功耗极小，如80A电流时功耗仅2W，对系统整体效率影响可忽略；
- 易集成与成本控制：2512封装适配常规SMT产线，无需特殊焊接工艺，节省PCB空间与生产时间，降低系统成本；
- 可靠耐用：大毅科技品控体系保障，产品符合RoHS、UL认证（典型特性），适合长期稳定工作场景。
五、注意事项与选型建议
- 功率降额：实际应用需根据环境温度降额，如70℃时功率限制在1.5W以内，避免过热损坏；
- PCB布线：采样电阻需靠近电流路径，焊盘增加散热铜箔，减少热阻；
- 电流范围匹配：适合5A~80A电流采样，若电流超过80A，需并联多只或选择更高功率型号；
- 精度升级：若需±0.5%更高精度，可选择同系列高精度型号（如RLP25FEER300F）。
总结：大毅科技RLP25FEER300是一款性价比突出的贴片电流采样电阻，兼顾低阻、高精度与可靠性，广泛适配新能源、工业控制等领域的中等电流采样需求，是系统电流检测的理想选择。
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