WMSIC Electronic Components

BOURNS 3296W-1-205LF

Model3296W-1-205LF
PackageSIP-3P,9.5x4.8mm
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BOURNS 3296W-1-205LF
Type
SIP-3P, 9.5X4.8MM
Minimum package
100 管

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
25
Electronic Component
3296W-1-205LF
Electronic Component
1
Package
SIP-3P,9.5x4.8mm
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
1.12g
Electronic Component
2MΩ
Electronic Component
1
Electronic Component
BM0264528774
Electronic Component
±100ppm/℃
Electronic Component
Electronic Component
Electronic Component
100

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

BOURNS 3296W-1-205LF 精密可调电位器产品概述

BOURNS 3296W-1-205LF是一款专为中小功率电路设计的紧凑式精密可调电位器,属于BOURNS经典3296W系列。该产品以稳定的电气性能、精准的调整能力和紧凑封装,广泛应用于工业控制、仪器仪表、消费电子等领域,是电路中实现阻值微调、信号校准的常用元件。

一、产品基本信息

该电位器的核心标识与基础属性如下:

  • 品牌与系列:BOURNS(伯恩斯)3296W系列(精密可调电位器范畴);
  • 型号含义:3296W-1-205LF,其中“3296W”为系列号,“1”代表通用精度等级,“205”对应阻值编码(实际标称阻值为2MΩ),“LF”标识无铅环保封装;
  • 封装与尺寸:SIP-3P(单列直插3引脚),物理尺寸9.5mm(长)×4.8mm(宽),适配高密度PCB板安装;
  • 调整类型:25圈多圈可调,相比单圈电位器,调整精度更高,适合精细阻值控制场景。

二、核心电气参数解析

电气参数是选型的关键依据,具体如下:

1. 阻值与精度

  • 标称阻值:2MΩ(2×10⁶Ω),满足中高阻值电路的调整需求;
  • 精度等级:±10%,属于通用型电位器典型精度,适配大多数非超高精度场景;若需更高精度(如±5%),需选择系列中对应编码型号。

2. 功率与温度稳定性

  • 额定功率:500mW(0.5W),表示25℃环境下长期稳定工作的最大功率,使用时需避免实际功率过载;
  • 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±0.01%,适配常规温度环境(±20℃以内);极端温度场景需验证或选低温度系数型号。

3. 调整特性

  • 总调整圈数:25圈,从最小到最大阻值需旋转25圈,实现细腻调节,适合仪器校准、信号偏置调整等场景。

三、结构与封装特点

该电位器结构兼顾性能与实用性:

  1. 电阻体材质:采用金属膜电阻体,耐磨、低噪声、稳定性好,调整寿命可达数千次;
  2. 引脚设计:SIP-3P单列直插引脚,间距符合PCB标准,焊接便捷,无需特殊工具;
  3. 调整方式:顶部配备十字/一字调整旋钮,可通过小型螺丝刀调节,操作简单;
  4. 防护细节:部分型号带防尘盖,防止灰尘杂质进入,延长使用寿命。

四、典型应用场景

该产品适配以下场景:

  1. 工业控制:PLC模块、传感器信号调理电路(零点/增益校准),如压力、温度传感器的信号放大;
  2. 仪器仪表:万用表、示波器等测试设备的校准电路,实现量程精度微调;
  3. 消费电子:音频设备(功放、耳机放大器)的音量/音调微调,显示设备(LCD/LED屏)的亮度/对比度调整;
  4. 通信设备:射频模块阻抗匹配调整,信号放大电路偏置电压校准。

五、选型与使用注意事项

为确保稳定工作,需注意:

  1. 功率匹配:计算实际功率(P=I²R或V²/R),不超过500mW,过载需并联/串联保护电阻;
  2. 环境适配:极端温度(-40℃~85℃)场景需验证温度系数,必要时选低温度系数型号;
  3. 焊接规范:焊接温度≤260℃(时间≤3秒),避免高温损坏内部结构;
  4. 调整防护:避免过度旋转(超25圈),调整后可涂固定胶防振动漂移。

六、品牌与品质优势

BOURNS作为全球知名元器件厂商,3296W系列具有:

  1. 可靠性:经高低温循环、振动、冲击等测试,满足工业级环境需求;
  2. 一致性:批量产品参数一致性好,减少生产校准时间;
  3. 环保性:无铅封装符合RoHS标准,适配绿色电子产品。

综上,BOURNS 3296W-1-205LF是一款高性价比的精密可调电位器,覆盖多领域中小功率电路微调需求,是工业控制、仪器仪表等场景的优选元件。

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