WMSIC Electronic Components

BOURNS 3296P-1-502LF

Model3296P-1-502LF
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 3296P-1-502LF
Type
BOURNS
Unit
Electronic Component
Minimum package
50 管

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
BOURNS
Electronic Component
25
Electronic Component
3296P-1-502LF
Electronic Component
1
Package
Through-hole-3P, 9.5x4.8mm
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
1.19g
Electronic Component
5kΩ
Electronic Component
1
Electronic Component
BM0264528766
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 3296P-1-502LF 产品概述

一、产品简介

BOURNS 3296P-1-502LF 是一款小型多圈可调电阻(电位器/微调电阻),以其紧凑体积与细致调节能力常用于电路调校与参数微调场合。该型号为 5 kΩ 标称阻值,适合信号级与测量级的调节应用,典型用于电压分压、偏置调整、传感器校准和滤波器微调等场合。

二、主要参数

  • 阻值:5 kΩ(型号后缀“502”表示 5.0kΩ)
  • 精度(阻值公差):±10%
  • 功率:500 mW(静态功率消耗能力,适用于低功率信号路径)
  • 温度系数:±100 ppm/℃(中等热稳定性)
  • 圈数:25 圈(多圈设计,便于精细调节)
  • 封装/引脚:插件-3P,外形尺寸约 9.5 × 4.8 mm
  • 品牌:BOURNS
  • 型号:3296P-1-502LF(“LF” 通常表示无铅/环保处理或相关工艺标识)

三、结构与封装说明

3296P-1-502LF 为单圈三端式(3P)可调电阻的多圈版本,采用插件式(through-hole)封装便于手工焊接与维修替换。9.5×4.8 mm 的正面占位非常紧凑,适合空间受限的印制板布置。25 圈的机械转动次数较多,可实现细微、可重复的阻值调整,常用于需要精确校准的场景。

四、性能特点

  • 多圈(25 转)设计带来高分辨率的电阻调节,便于完成微调与精确校准。
  • ±100 ppm/℃ 的温度系数表明在一般环境温度变化下阻值变化较小,适合要求一定稳定性的模拟电路。
  • 500 mW 的功率额定使其适合用于信号级和测量级电路,但不适合大电流或高功耗的负载调节。
  • 紧凑封装和插件引脚利于样机调试、维修及手工装配。
  • ±10% 的阻值公差为常见商用级别,成本与性能之间具有良好平衡;对更高精度需求可考虑更低公差的型号或后续校验/筛选。

五、典型应用场景

  • 模拟前端的偏置与增益微调(放大器、运放电路)
  • 传感器/测量装置的零点或量程校准
  • 滤波器中心频率微调或时间常数调整
  • 电源与稳压电路的小范围电压分压与反馈调节(信号级)
  • 实验室与样机开发中的参数试调与验证

六、安装与使用注意事项

  • 插件焊接时注意焊接温度和时长以防损伤内部元件;推荐使用适当温度的烙铁并尽量缩短接触时间。
  • 调整时建议使用合适尺寸的微调工具,避免使用过大力矩导致机械磨损或转动机构损坏。
  • 该元件功率仅 500 mW,应用时需计算电阻两端的实际耗散功率(P = V^2 / R 或 P = I^2 · R),以避免超载。
  • 长期在高湿或腐蚀性环境中使用时应考虑封装防护或选用密封型产品。
  • 在最终设计中,为便于调节和维护,建议在 PCB 上预留足够的工具操作空间并标识调整位置。

七、选型建议

  • 若需更高精度(如 ±1% 或更好),或更低温漂,建议选用精密级或温漂更低的系列产品。
  • 若电路中存在较高功耗或通过电阻的电流较大,应选择额定功率更高或采用线绕型的可调电阻。
  • 对环境防护或长期可靠性有高要求的场合,可考虑密封式或符合更高环境等级(如 IP)和耐振动版本。
  • 若需表面贴装(SMT)或更小安装高度,请选择相应的 SMD 型号或其他封装选项。

八、订购与替代

  • 货号:3296P-1-502LF(下单前请确认完整型号及后缀,以保证是否为无铅/环保版或其它工艺标识)
  • 若需替代品,可在 BOURNS 的相近系列或其他厂商的多圈可调电阻中,按阻值、功率、圈数与封装尺寸进行匹配替换。替代时重点核对功率额定、温漂、机械寿命与封装兼容性。

总结:3296P-1-502LF 以其多圈细调、紧凑体积与适度的温漂和功率特性,适合用于各类需要精细调节的模拟与测量电路。在设计应用时应关注功率耗散与环境条件,必要时按应用需求选择更高精度或更高可靠性的替代型号。

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