WMSIC Electronic Components

BOURNS 3296Y-1-203LF

Model3296Y-1-203LF
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 Date code within 2 years

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
BOURNS 3296Y-1-203LF
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-1-203LF
Electronic Component
1
Package
Through-hole-3P, 9.5x4.8mm
Electronic Component
Resistor / positions
Electronic Component
±10%
Electronic Component
1.39g
Electronic Component
20kΩ
Electronic Component
1
Electronic Component
BM0264398992
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-1-203LF 精密可调电位器产品概述

BOURNS 3296Y-1-203LF是一款工业级精密可调电位器,属于BOURNS经典3296Y系列,核心阻值为20kΩ,兼具稳定的温度特性与精细调节能力,适用于对阻值精度、环境适应性有要求的各类电路场景。

一、核心参数详细解析

该型号电位器的关键参数直接决定了其应用边界,各参数意义清晰可落地:

  1. 阻值与精度:标称阻值20kΩ(标识“203”表示20×10³Ω),阻值允许偏差±10%——实际阻值范围18kΩ~22kΩ,满足大部分通用电路的基础调节需求,无需过度降额设计。
  2. 额定功率:连续工作功率500mW,按最大阻值计算允许的最大工作电压约为√(0.5×20000)=100V,覆盖多数低压小信号电路(如传感器信号调理、电源微调)。
  3. 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±0.01%(1ppm=1/10⁶)。以25℃为基准,当环境温度升至100℃时,阻值变化量仅约15Ω,阻值稳定性表现优异,适合长期运行的工业设备。
  4. 调节圈数:总调节圈数25圈,相比普通单圈电位器,阻值调节分辨率提升显著——每圈可调节阻值800Ω,1/4圈即可实现200Ω级微调,适配仪器校准等精准场景。

二、结构与封装特征

  1. 封装形式:采用插件3引脚(3P)封装,引脚布局符合常规PCB设计规范,便于手工/波峰焊接;尺寸9.5×4.8mm为紧凑型封装,可适配空间有限的电路板(如小型仪表、嵌入式模块)。
  2. 结构设计:基于BOURNS成熟工艺,采用陶瓷基体保障阻值稳定性,滑动触点选用耐磨合金材料延长使用寿命;顶部配备螺丝刀调节孔,支持工具微调,避免手动调节的误差与触点磨损。

三、电气性能关键特点

  1. 阻值稳定性:低温度系数+陶瓷基体的组合,使阻值受环境温度、湿度变化影响极小,适合长期运行的工业设备(如PLC、变频器)。
  2. 调节精细度:25圈的调节范围可将阻值变化细分为800Ω/圈,满足校准类场景的精度要求(如示波器垂直增益校准、万用表量程调节)。
  3. 功率耐受能力:500mW额定功率覆盖多数信号调理、电源微调场景,特殊高温场景可参考BOURNS官方降额曲线适当降额。

四、典型应用场景

该型号性能匹配多类场景,常见应用包括:

  1. 工业控制设备:PLC参数校准、变频器转速调节、传感器零点/量程补偿。
  2. 测试测量仪器:示波器、信号发生器、万用表的校准电路,保障仪器输出/测量精度。
  3. 电源模块:开关电源、线性电源的输出电压微调,避免负载波动导致的电压偏移。
  4. 通信设备:基站、路由器等设备中的信号衰减调节,优化信号传输质量。

五、选型与替代参考

若需调整参数或封装,可参考以下成熟方案:

  1. 同系列阻值调整:10kΩ选3296Y-1-103LF,50kΩ选3296Y-1-503LF,核心性能参数一致。
  2. 精度升级:需±1%精度可选BOURNS 3296W系列(如3296W-1-203LF),温度系数保持±100ppm/℃。
  3. 封装切换:需贴片封装可选3296S系列(如3296S-1-203LF),适配自动化贴装产线。

综上,BOURNS 3296Y-1-203LF凭借平衡的性能参数与紧凑体积,成为通用精密调节场景的高性价比选择,广泛应用于工业、测试、通信等领域。

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