WMSIC Electronic Components

BOURNS 3296Y-1-202LF

Model3296Y-1-202LF
PackageThrough-hole-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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
BOURNS 3296Y-1-202LF
Type
BOURNS
Unit
Electronic Component
Minimum package
100 管

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
25
Electronic Component
3296Y-1-202LF
Electronic Component
1
Package
Through-hole-3P, 9.5x4.8mm
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
1.512g
Electronic Component
2kΩ
Electronic Component
1
Electronic Component
BM0264398996
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.

BOURNS 3296Y-1-202LF 精密可调电位器产品概述

一、产品定位与核心属性

BOURNS 3296Y-1-202LF属于小型化精密多圈可调电位器,专为需要稳定、精细电阻调节的电子电路设计。作为BOURNS 3296Y系列的经典型号,其兼顾高调节分辨率、宽温度稳定性与紧凑尺寸,适用于工业控制、仪器仪表、通信设备等对精度要求较高的场景。

二、关键技术参数详解

该型号核心参数明确,直接对应电路设计需求:

  1. 阻值与编码:标称阻值2kΩ,采用国际通用电阻编码“202”(前两位为有效数字20,第三位为10的幂次2,即20×10²=2000Ω);
  2. 精度等级:±10%阻值偏差,满足非超精密但需稳定调节的场景(若需更高精度可选择同系列±5%或±1%型号);
  3. 额定功率:500mW,最大工作电压约31.6V(√(P×R)=√(0.5×2000)),最大工作电流约15.8mA(P/R=0.5/2000);
  4. 温度系数:±100ppm/℃,即温度每变化1℃,阻值漂移为百万分之一百,宽温范围(-55℃~+125℃)下仍保持稳定;
  5. 调节特性:25圈全行程多圈设计,调节分辨率远高于单圈电位器,可实现1/25全量程的精细调整;
  6. 封装与尺寸:插件3引脚(3P)封装,外形尺寸9.5×4.8mm,适配紧凑PCB布局。

三、结构设计与可靠性优势

3296Y系列采用BOURNS成熟的陶瓷基体+金属膜电阻元件结构:

  • 陶瓷基体耐高温、抗机械应力,避免电阻值随环境变形漂移;
  • 金属膜电阻元件一致性好,长期使用阻值变化率低;
  • 25圈多圈调节机构采用精密齿轮传动,调节手感均匀,无卡顿或空转;
  • 3引脚插件封装符合标准焊接间距,手工焊或波峰焊兼容性强。

四、核心性能特点

  1. 高调节精度:25圈设计使调节步长比单圈电位器小约10倍,适合传感器信号校准、仪器增益微调等场景;
  2. 宽温稳定性:±100ppm/℃的温度系数,在工业级温区(-40℃~+85℃)下阻值漂移≤400ppm,满足户外或极端环境应用;
  3. 小体积适配:9.5×4.8mm尺寸仅为传统多圈电位器的60%,可用于便携式设备、密集布局的工业控制板;
  4. 长期可靠性:BOURNS 3296Y系列通过1000小时高温老化测试,阻值变化率≤0.5%,适合高可靠性要求的设备;
  5. 功率余量充足:500mW额定功率比多数低压电路(如5V/3.3V)的实际功耗大10倍以上,避免过载损坏。

五、典型应用场景

  1. 工业控制:PLC输入模块的信号零点校准、压力/温度传感器的量程调节、伺服电机驱动的参数微调;
  2. 仪器仪表:示波器增益调节、信号发生器频率微调、万用表电阻档校准;
  3. 通信设备:基站射频模块的阻抗匹配、小型路由器的信号强度微调;
  4. 汽车电子:车载氧传感器信号修正、节气门位置传感器辅助调节(部分型号符合AEC-Q200汽车级标准);
  5. 医疗设备:便携式血糖仪的校准电位器、监护仪信号调理电路。

六、选型与使用注意事项

  1. 功率匹配:实际电路中通过电位器的功耗需≤500mW,避免过流或过压(如5V电路中最大电流≤100mA,实际功耗仅20mW);
  2. 焊接规范:手工焊温度≤260℃,焊接时间≤3秒;波峰焊温度≤245℃,时间≤5秒,避免高温损坏电阻元件;
  3. 调节操作:使用1.5mm一字螺丝刀缓慢调节,全行程不超25圈,避免过度旋转损坏齿轮机构;
  4. 环境适配:若应用于汽车或户外场景,需确认型号是否符合AEC-Q200或IP防护等级要求;
  5. 精度验证:焊接前可通过万用表校准阻值,焊接后可在工作温度下复测,确保满足电路设计要求。

该型号作为BOURNS 3296Y系列的高性价比选择,平衡了精度、体积与成本,是多数精密调节场景的可靠解决方案。

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