WMSIC Electronic Components

TA-I Technology RLP25FEER170

ModelRLP25FEER170
Package2512
BrandElectronic Component
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RLP25FEER170
Type
TA-I Technology
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RLP25FEER170
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.082g
Electronic Component
170mΩ
Electronic Component
1
Electronic Component
BM0264549147
Operating Temperature
55℃~+170℃
Electronic Component
±50ppm/℃
Electronic Component
Electronic Component
Electronic Component
4000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

RLP25FEER170 贴片功率电阻产品概述

一、产品定位与核心参数概览

RLP25FEER170是大毅科技推出的2512封装低阻值贴片功率电阻,聚焦工业级宽温环境下的功率回路、电流检测等场景,核心参数精准匹配实际应用需求:

  • 标称阻值:170mΩ(毫欧级低阻,电流检测核心需求)
  • 精度等级:±1%(满足多数工业监测的误差要求)
  • 额定功率:2W(常温下稳定承载功率)
  • 温度系数:±50ppm/℃(宽温下阻值稳定性关键指标)
  • 工作温度:-55℃~+170℃(覆盖极端环境场景)

该产品属于大毅“RLP系列”功率电阻,平衡了低阻特性、功率承载与环境适应性,是工业设备、电池管理等领域的实用选型。

二、封装与贴装兼容性

RLP25FEER170采用2512英制贴片封装,对应公制尺寸为6.40mm(长)×3.20mm(宽)×0.55mm(典型厚度),符合IPC-7351标准:

  • 焊盘设计兼容主流SMT生产线,支持回流焊、波峰焊工艺,贴装良率高;
  • 封装紧凑,可节省PCB空间,适配高密度电路设计(如新能源汽车BMS模块);
  • 金属电极采用耐温合金材料,焊接后可承受多次热循环,可靠性突出。

三、电气性能关键指标解析

3.1 阻值与精度的实用价值

170mΩ低阻配合±1%精度,解决了电流检测的核心矛盾:

  • 低压降损耗:若回路电流为10A,压降仅1.7V(170mΩ×10A),远低于高阻电阻的能量损耗;
  • 高采样准确:±1%精度可保证10A电流下采样误差≤0.1A,满足工业设备、储能电站的监测需求。

注:低阻电阻的精度实现难度高于高阻,1%精度在毫欧级产品中属于实用级水平。

3.2 功率承载与降额规范

额定功率2W是2512封装的标准功率等级,需遵循大毅科技的降额要求:

  • 环境温度>70℃时,功率按1%/℃降额(如120℃时,额定功率降至≈1.5W);
  • 峰值功率可短暂达4W(10秒内),适配脉冲电路(如电机启动瞬间)。

3.3 温度系数(TCR)的稳定性

±50ppm/℃的TCR表示:每℃阻值变化不超过百万分之50,以170mΩ为例:

  • 温差225℃(-55℃→+170℃)时,阻值最大变化≈1.91mΩ,仍在合理误差范围内;
  • 该特性确保宽温下阻值波动小,无需额外温度补偿电路,简化设计。

四、环境适应性与可靠性

4.1 宽温场景覆盖

-55℃~+170℃的工作温度,覆盖工业级核心极端场景:

  • 低温场景:户外设备、低温实验室的低温启动(如北方冬季户外充电桩);
  • 高温场景:电源模块、电机驱动的散热区域(长期工作温度可达150℃以上)。

4.2 可靠性验证

大毅科技对该产品进行多项国际标准测试,保障长期稳定性:

  • 高温老化(155℃×1000h):阻值变化≤0.5%;
  • 湿度循环(85℃/85%RH×1000h):阻值变化≤1%;
  • 机械振动(10~2000Hz×2h):无开路、短路故障。

五、典型应用场景

RLP25FEER170的特性匹配以下核心领域:

  1. 电池管理系统(BMS):新能源汽车、储能电站的充放电电流采样;
  2. 电源电路:开关电源、DC-DC转换器的过流保护与输出电流检测;
  3. 电机驱动:伺服电机、步进电机的电流反馈回路(精准调速);
  4. 工业自动化:PLC、变频器的功率回路电阻;
  5. 车载电子:汽车充电桩、车载电源的电流监测(基础宽温支持)。

六、品牌与品质保障

大毅科技作为台湾老牌被动元件厂商,拥有30余年电阻研发经验,RLP25FEER170通过以下认证:

  • RoHS 2.0(无铅环保);
  • IEC 61000-4-2(ESD抗扰度);
  • 部分批次符合AEC-Q200(汽车级)要求(需确认具体型号版本)。

产品采用自动化生产,阻值一致性好,可满足批量采购的品质稳定性需求。

该产品以“低阻高精度+宽温可靠性”为核心优势,是工业级电流检测、功率回路的高性价比选型。

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