WMSIC Electronic Components

BOCHEN RM065-203(20K) Trimmer Potentiometer RM065

ModelRM065-203(20K)
PackageThrough-hole, 7.3x6.4mm
BrandBOCHEN
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

18 specifications

Core information

Product name
BOCHEN RM065-203(20K)
Type
BOCHEN
Minimum package
500 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
BOCHEN
Electronic Component
RM065-203(20K)
Electronic Component
1
Package
Through-hole, 7.3x6.4mm
Electronic Component
Resistor / positions
Electronic Component
±25%
Electronic Component
0.31g
Electronic Component
20kΩ
Electronic Component
1
Electronic Component
BM0266081705
Voltage
50V
Electronic Component
Electronic Component
Electronic Component
500

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

RM065-203(20KΩ)可调电位器产品概述

RM065-203是博晨(BOCHEN)品牌推出的一款小型插件式可调电位器,主打高性价比与小信号电路适配性,核心阻值为20kΩ(型号中“203”代表20×10³Ω),广泛应用于小家电、电子仪表、音频设备等领域的参数微调场景。

一、产品核心参数与定位

该电位器的关键电气参数清晰明确,覆盖基础应用需求:

  • 阻值规格:20kΩ(标称值),精度±25%(工业级常规精度);
  • 功率与电压:额定功率100mW,额定电压50V(直流/交流有效值);
  • 封装与安装:插件式设计,适配通孔焊接工艺,无特殊封装(RM065系列为通用小型圆柱型);
  • 品牌:BOCHEN博晨,国内被动元件领域的成熟品牌。

产品定位为低成本通用型可调元件,适用于对精度要求不苛刻、小功率信号调节的批量应用,无需复杂校准流程即可满足基础电路需求。

二、结构与调节特性

RM065-203采用圆柱型金属外壳(部分批次为塑料外壳),整体体积小巧(直径约φ6mm,长度约10mm),便于紧凑电路布局。核心结构特点:

  1. 引脚配置:3引脚设计(两端固定端、中间可调端),符合电位器常规接线逻辑;
  2. 调节方式:顶部一字槽设计,需使用小型螺丝刀微调,调节角度范围约0°~300°(避免360°旋转损坏内部膜层);
  3. 外壳功能:金属外壳具备基础屏蔽作用,减少外部电磁干扰对信号的影响;
  4. 固定方式:无螺纹设计,依赖焊接固定,部分型号预留定位孔可辅助额外固定。

三、电气性能详解

除标称参数外,产品的实际电气表现需结合应用场景评估:

  • 功率与电流限制:100mW额定功率下,最大允许电流约2.24mA(公式:(I=\sqrt{P/R})),实际应用需留10%~20%余量,避免过热;
  • 温度稳定性:典型温度系数为±200ppm/℃(行业常规值),即温度每变化1℃,阻值变化±0.02%,满足一般环境下的稳定需求;
  • 绝缘性能:引脚间绝缘电阻≥100MΩ(25℃、500V DC条件下),符合基本绝缘要求;
  • 寿命特性:碳膜型调节寿命约1000次,金属膜型可提升至5000次,具体取决于批次工艺。

四、典型应用场景

结合参数特点,RM065-203的适配场景集中在小信号、低功率电路:

  1. 小家电控制:电风扇调速电路、台灯调光模块的电压微调;
  2. 电子仪表校准:万用表零点校准、示波器垂直增益微调;
  3. 音频设备:小型音箱音量/音调调节、耳机放大器的偏置电压调节;
  4. 电源电路:线性电源输出电压校准、电池充电电路的电流微调;
  5. 传感器调理:热敏电阻、光敏电阻的信号补偿调节(匹配20kΩ阻值范围)。

五、使用注意事项

为保证产品可靠性与使用寿命,需注意以下要点:

  1. 功率限制:严禁超过100mW额定功率,避免因过热导致膜层烧毁;
  2. 调节操作:使用匹配槽型的螺丝刀,避免过度旋转(超出调节范围可能损坏内部触点);
  3. 焊接要求:烙铁温度≤350℃,焊接时间≤3秒,避免高温损坏外壳或内部元件;
  4. 环境防护:避免在湿度>85%RH的潮湿环境或腐蚀性气体环境中使用,防止引脚氧化;
  5. 接线规范:确保接线牢固,避免虚焊导致阻值不稳定。

六、品牌与可靠性说明

BOCHEN博晨专注于电位器、电阻器等被动元件的研发与生产,产品覆盖中低端市场,RM065系列经过常规可靠性测试(高低温循环、振动测试、耐湿测试),符合GB/T 17702.1《电子设备用固定电位器 第1部分:总规范》的基本要求。虽然精度±25%不适合高精度场景,但成本优势明显,适合批量生产中的基础调节需求。

综上,RM065-203是一款高性价比的通用型可调电位器,能够满足大多数小信号电路的微调需求,是小家电、电子仪表等领域的优选元件之一。

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