WMSIC Electronic Components

BOURNS 3266W-1-104LF

Model3266W-1-104LF
PackageThrough-hole-3P, 6.4x4.3mm
BrandBOURNS
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

20 specifications

Core information

Product name
BOURNS 3266W-1-104LF
Type
BOURNS
Unit
Electronic Component
Minimum package
100 管

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
12
Electronic Component
3266W-1-104LF
Electronic Component
1
Package
Through-hole-3P, 6.4x4.3mm
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
0.7g
Electronic Component
100kΩ
Electronic Component
1
Electronic Component
BM0257053256
Electronic Component
±100ppm/℃
Electronic Component
Electronic Component

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

3266W-1-104LF 产品概述

一、概述

BOURNS 3266W-1-104LF 是一款小型插件可调电阻(电位器),标称阻值 100 kΩ,额定功率 250 mW,精度 ±10%,温度系数 ±100 ppm/°C,12 圈微调结构,封装为三脚通过孔(3P),外形尺寸约 6.4 × 4.3 mm。该器件以紧凑体积和高调节精度为特点,适合用于需要细调、占板面积小的模拟前端和调零/微调电路。

二、主要规格

  • 品牌:BOURNS
  • 型号:3266W-1-104LF
  • 阻值:100 kΩ(104)
  • 精度(阻值公差):±10%
  • 额定功率:250 mW(工作条件下需注意散热与环境温度)
  • 温度系数:±100 ppm/°C(典型的中等稳定性)
  • 圈数:12(多圈微调,细分分辨率高)
  • 封装:插件(Through-hole),3 引脚(端-端-滑片),板上占位约 6.4 × 4.3 mm
  • 环保/处理:LF 后缀通常表示无铅(lead-free)版本

三、电气性能解读

  • 温度系数 ±100 ppm/°C:每升高 1°C,阻值会以约 0.01% 的比例变化。举例:环境温度变化 25°C,阻值理论变化约 0.25%。该参数说明在中等温漂要求的模拟电路中性能稳定可接受。
  • 功率与最大电压/电流:额定功率 250 mW。可由公式估算跨端最大允许电压与电流:
    • 最大跨端电压(理论)Vmax = sqrt(P × R) ≈ sqrt(0.25 × 100000) ≈ 158 V(理论值,实际应用中通常受限于绝缘与制造规范,建议遵循厂方数据手册的最高工作电压)
    • 最大跨端电流 Imax = sqrt(P / R) ≈ 1.58 mA
      注意:在实际电路中,尤其是作为分压器使用时,滑片位置导致局部功率集中,需确保任一部分不超过额定功耗,必要时采取限压或限流措施。
  • 精度 ±10%:适合一般信号调节、校准用途,不适合需要高精度长期稳定性的参比电阻场合。

四、机械与封装信息

  • 小体积(6.4 × 4.3 mm)便于密集 PCB 布局,三脚通过孔安装,提高机械强度与可靠性。
  • 12 圈微调结构提供较高的调节分辨率,适合需要细微调节的校准场合(例如偏置调整、零点微调)。
  • 常见封装形式为带塑壳的轴向或直立插件,具体引脚间距与座标请参照原厂数据手册以保证 PCB 钻孔与贴装一致。

五、典型应用场景

  • 模拟前端偏置微调(放大器偏置、电桥平衡)
  • 传感器调零/量程校准(温度、压力、光电等信号调校)
  • 功能测试与调试电路中的可调分压器
  • 消费类小型电子设备中对电平、灵敏度的微调
  • 教学演示及原型开发板中作为可调阻元件

六、安装与使用建议

  • 功率与热管理:在 PCB 上为该元件保留合适的散热空间,避免与高功耗器件密集排布。长时间接近额定功率运行会降低寿命,建议适当 derating(降额)使用。
  • 焊接与清洗:遵循无铅焊接工艺,控制焊接温度与时间,避免过热导致内部材料退化。若需后清洗,应使用对潤湿性和内部结构无害的清洗剂。
  • 调节方式:12 圈微调,请使用合适尺寸的螺丝刀或调节工具,避免用力过大造成机构损伤或接触不良。
  • 存储与环境:避免潮湿、强腐蚀气体及极端温度环境,长期存放应密封防潮。

七、选购与注意事项

  • 型号说明:3266W 系列为多圈可调电阻,"104" 表示 100 kΩ,"LF" 一般表示无铅(RoHS 兼容)。
  • 选型要点:确认所需阻值、功率预算、调节圈数与封装(插件/贴片)是否匹配;若电路对精度或温漂有更高要求,可考虑更高精度或低温漂的型号(例如精度 ±5% 或温度系数更低的系列)。
  • 采购时建议索取并参照 BOURNS 官方数据手册与 3D/PCB 尺寸资料,验证焊接工艺与使用条件。

综上,3266W-1-104LF 是一款面向微调与板载校准的紧凑型多圈可调电阻,适用于信号级别的调节与校准场合。在选用时注意功率分配与温度影响,合理布局与焊接即可获得可靠的长期性能。

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