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TA-I Technology RLP25FEEMR005
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RLP25FEEMR005
- Type
- TA-I Technology
- Minimum package
- 4000 圆盘
Technical parameters
- Power
- 2W
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- RLP25FEEMR005
- Electronic Component
- 1
- Package
- 2512
- Electronic Component
- Current Sense Resistor / Shunt
- Electronic Component
- ±1%
- Electronic Component
- 0.084g
- Electronic Component
- 5mΩ
- Electronic Component
- 1
- Electronic Component
- BM0264549199
- 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.
RLP25FEEMR005 产品概述
一、产品简介
RLP25FEEMR005 是大毅科技推出的一款贴片电流采样电阻（分流器），阻值为 5 mΩ，精度 ±1%，功率等级 2W，温度系数（TCR）为 ±50 ppm/°C，采用 2512 封装。专为高电流、低压降的精确电流检测场合设计，适配自动贴片生产，便于在电源管理、BMS、直流-直流转换和电机驱动等系统中使用。
二、主要电气参数
- 阻值：5 mΩ ±1%（0.005 Ω，精度等级高，利于精确测量）
- 额定功率：2W（常温、良好散热条件下）
- 温度系数：±50 ppm/°C（保证随温度变化的阻值稳定性）
- 封装：2512（适配常用 SMT 贴装工艺） 由功率与阻值可推算理想连续电流：Imax = sqrt(P/R) ≈ 20A（实际使用建议考虑散热与降额）。
三、关键特性与优势
- 高精度：±1% 阻值公差，适用于对测量精度要求高的采样电路。
- 良好热性能：2W 功率与 2512 大封装有利于散热，适合中高电流场景。
- 低 TCR：±50 ppm/°C 降低温度漂移，提升长期测量稳定性。
- SMT 兼容：2512 封装支持自动化贴装与回流焊，便于量产。
四、典型应用场景
- 电池管理系统（BMS）电流检测与保护
- 开关电源与低压大电流 DC-DC 采样
- 电机驱动电流监测与过流保护
- 成本与尺寸受限的电流测量模块
五、选型与布局建议
- 散热考虑：在高电流或高环境温度下，应在电阻下方或两侧布置铜域以增强散热；必要时增加散热铜柱或放大焊盘面积。
- 测量精度：建议使用四端（开尔文）测量法或在 PCB 上预留独立的感测引线，尽量避免测量回路与主电流回路共用长走线。
- 降额使用：实际连续电流建议根据 PCB 散热条件和环境温度适当降额，一般在高温或散热受限时将允许电流显著降低。
- 焊接工艺：按常规无铅回流曲线进行焊接，避免过热导致阻值漂移或机械应力。
六、可靠性与测试
- 建议在设计验证阶段进行长期温漂测试与热冲击测试，校核在实际工作温度下的阻值漂移。
- 对于高精度应用，出厂后应进行批次抽检与完整性验证（阻值、功率承受、焊接可靠性）。
七、包装与订购信息
- 型号：RLP25FEEMR005
- 品牌：大毅科技
- 封装：2512，贴片，常见卷盘（Tape & Reel）包装，便于 SMT 贴装与自动化生产。
总结：RLP25FEEMR005 是一款面向中高电流、要求高精度和良好温度稳定性的采样电阻器件。合理的 PCB 布局与散热设计能充分发挥其性能，适合电源管理、电池管理及工业控制等多种场景。若需进一步的封装图、热阻或完整规格书，建议向大毅科技索取官方 datasheet 以供精确设计。
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