WMSIC Electronic Components

BOCHEN 3266W-1-203 Trimmer Potentiometer 3266W

Model3266W-1-203
PackageThrough-hole
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

19 specifications

Core information

Product name
BOCHEN 3266W-1-203
Type
BOCHEN
Minimum package
50 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
BOCHEN
Electronic Component
12
Electronic Component
3266W-1-203
Electronic Component
1
Package
Through-hole
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
0.62g
Electronic Component
20kΩ
Electronic Component
1
Electronic Component
BM0265995076
Electronic Component
±250ppm/℃
Electronic Component
Electronic Component
Electronic Component
50

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

3266W-1-203可调电位器产品概述

3266W-1-203是博晨(BOCHEN)推出的一款通用型插件式可调电位器,针对中低端电子设备的电路调整需求设计,兼顾成本与可靠性,广泛应用于消费电子、工业控制等领域。以下从产品定位、参数、结构、可靠性及使用注意事项展开详细说明。

一、产品基本定位与典型应用场景

3266W-1-203属于线性可调电位器,核心定位为“低成本、易安装、满足一般精度需求”的电路调整元件,主要应用场景包括:

  1. 消费电子领域:小家电(电热水壶温度调节、加湿器风速控制)、遥控器(音量/频道微调)、LED驱动电路(亮度调节);
  2. 工业控制领域:小型仪器仪表(万用表校准、传感器信号微调)、PLC辅助电路(模拟量输入校准)、低压配电柜(指示灯亮度调节);
  3. 通信设备领域:基站辅助模块(射频信号微调)、路由器电源电路(电压微调);
  4. 汽车电子领域:车载小功率电路(仪表盘背光调节、车载充电器电压微调)。

该产品因插件封装安装方便,无需复杂焊接设备,适合批量生产与手工维修场景。

二、核心电气参数详解

3266W-1-203的关键电气参数明确了其性能边界,具体如下:

  1. 阻值与精度:标称阻值20kΩ(型号中“203”为阻值代码,代表20×10³Ω),精度±10%——满足多数非高精度电路的调整需求,例如无需严格到±1%的普通传感器信号校准;
  2. 功率额定值:最大允许功耗250mW——计算可知,其最大工作电流约为3.5mA(I=√(P/R)=√(0.25W/20000Ω)),使用时需避免电流超过该值,否则会导致元件过热损坏;
  3. 温度系数:±250ppm/℃——表示温度每变化1℃,阻值变化±250×10⁻⁶×20kΩ=±5Ω。若环境温度从25℃升至75℃(温差50℃),阻值最大变化±250Ω,适合一般室内环境(温度波动≤20℃),不适合高精度温敏电路;
  4. 调整圈数:12圈——为线性调整设计,每圈阻值变化约1.67kΩ(20kΩ/12圈),调整手感细腻,可实现较精细的电路参数微调,优于1圈/2圈的粗调电位器。

三、机械结构与封装特性

3266W-1-203采用标准插件封装,机械结构适配通用安装需求:

  1. 引脚形式:3脚插件(两端固定端、中间可调端),引脚间距符合行业标准(2.54mm),可直接插入PCB通孔;
  2. 尺寸规格:参考行业同类产品,整体尺寸约为φ10mm×12mm(直径×高度),占用PCB空间小,适合紧凑布局;
  3. 调整结构:旋转式调整轴(直径约2mm),轴长适配常见旋钮安装,调整时无明显卡顿,机械寿命满足10000次以上旋转操作;
  4. 外壳材质:采用耐磨损工程塑料(ABS),表面无毛刺,避免划伤PCB或操作人员,防护等级达IP40(防止直径≥1mm的固体异物进入)。

四、环境适应性与可靠性

该产品通过基础可靠性测试,可适应多数常规环境:

  1. 温度范围:工作温度-40℃+85℃,存储温度-55℃+125℃——覆盖全球多数地区的室内外环境(除极端高温/低温场景);
  2. 抗振动与冲击:符合IEC 60068-2-6振动测试(10~2000Hz,加速度2g)与IEC 60068-2-27冲击测试(10g,11ms),可承受一般工业设备的振动环境;
  3. 湿度适应性:可在相对湿度10%~90%(无凝露)环境下长期工作,避免在高湿度(>90%凝露)或腐蚀性气体(如硫化氢)环境中使用。

五、选型与使用注意事项

为确保产品性能与寿命,需注意以下要点:

  1. 功率降额使用:实际工作功率建议不超过额定值的80%(即200mW),避免长期过载导致阻值漂移;
  2. 焊接规范:插件焊接时,烙铁温度≤260℃,单次焊接时间≤3秒,避免高温损坏内部电阻膜;
  3. 调整范围限制:调整轴旋转范围为0~360°×12圈,切勿过度旋转(超过机械极限会导致内部结构损坏);
  4. 选型替代:若需更高精度(如±5%)可选择同系列3266W-1-203F,若需更高功率(500mW)可选择3266W-2-203;
  5. 防护措施:若应用于多尘/潮湿环境,可加装密封外壳或灌封胶,提升防护等级。

综上,3266W-1-203可调电位器以其成本优势、安装便利性及稳定的基础性能,成为消费电子与一般工业领域电路调整的常用元件,适合对精度、功率要求不苛刻的批量应用场景。

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