WMSIC Electronic Components

UNI-ROYAL 1206W4F240LT5E

Model1206W4F240LT5E
Package1206
BrandUNI-ROYAL
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

19 specifications

Core information

Product name
UNI-ROYAL 1206W4F240LT5E
Type
UNI-ROYAL
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
1206W4F240LT5E
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
240mΩ
Electronic Component
1
Electronic Component
BM0263477927
Operating Temperature
55℃~+155℃
Operating Voltage
200V
Electronic Component
±800ppm/℃
Resistor Type
Resistor

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

1206W4F240LT5E 贴片低阻值厚膜电阻产品概述

一、产品基本定位

1206W4F240LT5E是UNI-ROYAL(厚声)推出的1206封装贴片低阻值厚膜电阻,核心定位为通用型电流检测/功率电阻,适用于对精度、功率、宽温性能有明确要求的电子电路设计。该产品采用成熟厚膜工艺制造,兼顾成本与性能,可满足工业控制、电源模块、电池管理等场景的批量应用需求。

二、核心技术参数详解

1. 阻值与精度

标称阻值为240mΩ(0.24Ω),精度等级±1%,属于低阻值电阻范畴。低阻值设计可减少电路压降对信号的干扰,1%高精度则能保证电流采样(V=I×R)的计算误差控制在1%以内,适合对采样精度要求较高的场景。

2. 功率与电压特性

  • 额定功率:250mW(1/4W),表示25℃环境下可长期稳定工作的最大功率损耗;
  • 工作电压:200V(注:该参数为耐电压能力,实际连续工作电流约1.02A,对应压降0.245V,需结合功率限制使用)。

3. 温度特性与环境适应性

  • 温度系数(TCR):±800ppm/℃,即温度每变化1℃,阻值变化±0.08%;
  • 工作温度范围:-55℃至+155℃,覆盖工业级宽温要求,极端环境下仍能保持性能稳定。

三、封装与工艺优势

1. 1206封装规格

采用标准1206贴片封装(英制:0.12″×0.06″;公制:3.2mm×1.6mm),兼容常规SMT生产线,适合自动化批量生产;体积小巧,可有效节省电路板空间,适配高密度PCB设计。

2. 厚膜工艺特点

通过丝网印刷电阻浆料+高温烧结工艺制造,相比薄膜电阻成本更低,且低阻值实现难度小(通过调整膜厚、宽度及浆料成分精准控制)。该工艺使电阻具备较好的耐过载能力与长期稳定性,适合批量应用场景。

四、典型应用场景

1206W4F240LT5E的低阻值、高精度及宽温特性,使其广泛应用于以下领域:

1. 电流检测电路

  • 电池管理系统(BMS):检测单体电池充放电电流,精准控制电池状态;
  • 电源模块:检测输出电流,实现过流保护;
  • 电机驱动电路:检测电机工作电流,防止过载损坏。

2. 功率限制与采样

  • 限流电路:配合其他元件限制电路电流,保护敏感器件;
  • 电压采样:在分压电路中作为低阻采样端,减少功耗对信号的影响。

3. 工业与汽车电子

  • 工业控制设备:PLC、变频器等设备中的信号采样元件;
  • 车载电子(部分场景):车载电源、传感器电路中的电流检测(需结合具体可靠性要求)。

五、品牌与可靠性保障

UNI-ROYAL(厚声)作为国内专业电阻制造商,1206W4F240LT5E符合RoHS、REACH环保标准,经过高温老化、湿度测试、机械应力测试等严格可靠性验证,长期使用性能稳定。产品一致性好,批量采购可降低电路设计的物料风险。

该产品以平衡的性能与成本优势,成为低阻电流检测场景的实用选择,适配多种工业与消费电子领域的电路设计需求。

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