WMSIC Electronic Components

Milliohm HOCR2512-2W-10R-1% HOCR2512

ModelHOCR2512-2W-10R-1%
Package2512
BrandMilliohm
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
Milliohm HOCR2512-2W-10R-1%
Type
MILLIOHM
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
MILLIOHM
Electronic Component
HOCR2512-2W-10R-1%
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.056g
Electronic Component
10Ω
Electronic Component
1
Electronic Component
BM0264487181
Operating Temperature
55℃~+155℃
Operating Voltage
250V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

HOCR2512-2W-10Ω±1%陶瓷贴片电阻产品概述

一、产品核心定位与目标场景

HOCR2512系列是Milliohm品牌针对中功率高精度电阻需求设计的陶瓷贴片电阻,核心聚焦工业控制、电源系统、通信设备等对阻值稳定性、功率承载能力要求较高的应用场景。该型号以2W功率、±1%高精度、宽温域适应性为核心卖点,解决传统碳膜/金属膜电阻在高温下阻值漂移大、功率不足的痛点,是替代常规低功率贴片电阻的优选方案。

二、关键参数与性能优势

HOCR2512的核心参数直接匹配工业级应用的实际需求,具体价值如下:

  1. 阻值与精度:10Ω±1%,满足电流采样、信号衰减等场景对阻值一致性的要求(如开关电源电流检测中,±1%精度可将电流误差控制在1%以内,避免过流保护误触发);
  2. 功率承载:2W(25℃环境下),适配中小功率电源模块、电机驱动电路的功率损耗需求(10Ω电阻在2W功率下,最大工作电流可达0.447A,满足常规电源输出电流检测);
  3. 耐压与温域:工作电压250V(AC/DC),工作温度范围-55℃~+155℃,覆盖工业级环境(如户外基站、车载设备的高低温变化);
  4. 温度系数:±100ppm/℃,温度变化100℃时阻值漂移仅0.1Ω,远低于±1%精度范围,确保宽温下性能稳定。

三、封装与工艺特点

  1. 2512标准封装:采用英寸制2512封装(公制6.4mm×3.2mm),与常规贴片元件兼容,可直接用于自动化贴装生产线,无需特殊设备调整;
  2. 陶瓷厚膜工艺:以高纯度氧化铝陶瓷为基体,通过厚膜印刷工艺制备电阻层,相比碳膜电阻更耐温、抗老化,且机械强度高(抗振动/冲击能力优于薄膜电阻);
  3. 引脚与镀层:镀锡引脚焊接兼容性好(支持回流焊、波峰焊),镀层抗氧化性强,长期使用无虚焊风险。

四、可靠性与环境适应性

  1. 宽温稳定性:-55℃~+155℃的工作范围,可适应极端环境(如北方户外设备冬季-40℃、夏季60℃,或工业烤箱附近的高温区域);
  2. 抗环境干扰:陶瓷基体抗硫化、抗潮湿,适合工业现场的腐蚀性气体(如化工车间的硫化物)或高湿度环境;
  3. 长期可靠性:经1000小时高温负载老化测试,阻值漂移≤0.5%,满足工业设备5~10年的使用寿命要求。

五、典型应用场景

  1. 开关电源电流采样:在AC-DC/DC-DC电源模块中,作为电流检测电阻,准确采集输出电流,实现过流/短路保护;
  2. 电机驱动限流:用于小型直流电机、步进电机的驱动电路,陶瓷电阻耐温特性可承受电机启动时的瞬间功率冲击;
  3. 工业PLC信号调理:在PLC模拟量输入/输出模块中,作为信号衰减/放大的基准电阻,确保信号转换精度;
  4. 通信基站电源:基站电源配电单元中,用于电压分压、电流检测,250V耐压和宽温范围适配机房环境要求。

六、品牌与品质保障

Milliohm作为专业电阻制造商,HOCR2512系列通过RoHS、REACH认证,符合工业级标准,批量供货稳定性高,可提供样品测试与定制化参数调整(如特殊温度系数需求)。

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