WMSIC Electronic Components

Milliohm HOCR2512-2W-20KR-5% HOCR2512

ModelHOCR2512-2W-20KR-5%
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-20KR-5%
Type
MILLIOHM
Minimum package
4000 圆盘

Technical parameters

Power
2W
Electronic Component
Electronic Component
Electronic Component
MILLIOHM
Electronic Component
HOCR2512-2W-20KR-5%
Electronic Component
1
Package
2512
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.055g
Electronic Component
20kΩ
Electronic Component
1
Electronic Component
BM0257375880
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-20KR-5% 贴片陶瓷电阻产品概述

一、核心参数精准标定

HOCR2512-2W-20KR-5%是Milliohm品牌推出的贴片陶瓷电阻,核心参数经过严格校准,适配多场景应用需求:

  • 电阻类型:陶瓷电阻,以高密度陶瓷为基体,兼具稳定性与耐温性;
  • 阻值规格:20kΩ,精度±5%,覆盖多数非超高精度电路的需求;
  • 功率容量:额定功率2W,支持中等功率负载的稳定工作;
  • 电气极限:工作电压250V,最大承载电流约8mA(由功率公式P=U×I推导);
  • 温度特性:温度系数±100ppm/℃,阻值随温度变化的漂移可控;
  • 环境范围:工作温度-55℃~+155℃,适应宽温环境;
  • 封装形式:2512贴片封装(英制尺寸,约6.4mm×3.2mm),适配自动化贴装工艺。

二、封装与工艺优势

采用2512贴片封装,相比插件电阻具有明显的集成化与可靠性优势:

  1. 贴装适配性:尺寸符合标准SMT生产线要求,可通过回流焊、波峰焊快速组装,提升生产效率;
  2. 陶瓷基体工艺:以陶瓷为绝缘基体,激光微调阻值保证精度,避免传统绕线/碳膜电阻的阻值漂移问题;
  3. 焊接可靠性:封装底部焊盘设计优化了焊接面积,抗振动、抗冲击性能优于小型贴片电阻,适合有机械应力的场景。

三、电气性能核心亮点

  1. 功率与电压的平衡:2W额定功率搭配250V工作电压,可满足多数中等功率电路需求(如开关电源分压、LED驱动限流),避免功率裕量不足导致的过热烧毁;
  2. 精度与温度稳定性:±5%精度满足工业控制、信号调理等场景的基本要求,无需额外校准;±100ppm/℃温度系数意味着全温范围内(-55℃~+155℃)阻值最大漂移约±2.1%,叠加本身精度后总误差控制在±7.1%以内,稳定应对温度变化;
  3. 低噪声与高频特性:陶瓷电阻低损耗特性使其在高频电路表现优异,噪声系数低于碳膜电阻,适合射频信号匹配(如蓝牙/WiFi模块辅助电路)。

四、环境适应性表现

  1. 宽温工作能力:-55℃~+155℃覆盖工业现场(户外控制柜)、汽车电子(发动机舱周边)、消费电子(高温充电器)等场景;
  2. 耐恶劣环境:陶瓷基体耐腐蚀,抵御潮湿、粉尘,延长使用寿命;
  3. 抗机械应力:贴片结构紧凑,焊接后与PCB结合牢固,可承受工业机器人、车载设备的振动,不易脱焊或阻值变化。

五、典型应用场景

HOCR2512-2W-20KR-5%的参数特性使其在多领域实用:

  1. 电源电路:开关电源反馈分压、线性电源限流、电池管理检测电阻;
  2. 信号调理:运放反馈网络、传感器信号放大/衰减、通信模块阻抗匹配;
  3. 工业控制:PLC输入输出限流、变频器辅助电路、工业传感器接口电阻;
  4. 汽车电子:车灯控制限流、车载传感器信号调理、辅助电源分压;
  5. 消费电子:大功率LED驱动限流、充电器过流保护、音频设备信号电阻。

六、产品定位与价值

作为Milliohm中端贴片陶瓷电阻,该产品兼顾功率容量、温度稳定性与成本控制,适合对精度要求不苛刻但需宽温、中等功率的场景——相比高精度电阻更具性价比,相比普通碳膜电阻更耐温可靠,是工业、汽车、消费电子领域的实用选择。

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