WMSIC Electronic Components

UNI-ROYAL 1206W4F150LT5E

Model1206W4F150LT5E
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 1206W4F150LT5E
Type
UNI-ROYAL
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
1206W4F150LT5E
Electronic Component
1
Package
1206
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
150mΩ
Electronic Component
1
Electronic Component
BM0257341368
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.

1206W4F150LT5E 产品概述

一、产品简介

1206W4F150LT5E(品牌:UNI-ROYAL / 厚声)是一款贴片厚膜低阻值电阻,封装为1206,阻值为0.15Ω(150mΩ),公差±1%,额定功率250mW,最高工作电压200V,温度系数(TCR)±800ppm/℃,工作温度范围-55℃~+155℃。该器件适合在体积受限的表面贴装电路中作为电流检测或分流用途,兼具成本优势与良好的可焊性。

二、主要特性

  • 封装:1206(适合自动贴装与回流焊工艺)
  • 阻值:0.15Ω ±1%(高精度等级,便于精确电流测量)
  • 额定功率:250mW(标准环境下)
  • 额定工作电压:200V(器件最高耐受电压)
  • 温度系数:±800ppm/℃(中等温漂,需在热敏感应用中注意补偿)
  • 工作温度:-55℃ ~ +155℃(适合工业级温度条件)
  • 工艺:厚膜,成本较低,适用于批量生产

三、典型应用场景

  • 低电阻电流检测/分流器(电流采样)
  • 电源管理、电源监控与过流保护电路
  • 电池管理系统(BMS)与充放电监测
  • DC-DC 转换器、LED 驱动器、电机驱动中的电流检测
  • 高频率开关电源与过流检测场合(在需要低压降与小体积时)

四、电气与热性能提示

  • 最大连续工作电流(理论计算):Imax ≈ sqrt(P/R) = sqrt(0.25W / 0.15Ω) ≈ 1.29A;在该电流下电压降约为0.19V(V = I·R)。实际允许电流受环境温度、PCB散热及回流焊或长期老化影响,请参考厂方热降额曲线。
  • TCR ±800ppm/℃ 表明随温度变化阻值会有明显漂移:温差 50℃ 时阻值变化约为 4% 左右,若对精度要求高建议采用温度补偿或选择低TCR器件(如金属合金或金属箔电阻)。
  • 由于为两端式厚膜器件,若用于高精度电流检测,应注意接线电阻与焊盘影响;对更高精度可考虑四端(Kelvin)电阻方案。

五、封装、焊接与可靠性建议

  • 推荐采用标准回流焊工艺并遵循 IPC/J-STD-020 等行业规范;避免长时间暴露于超过最高回流温度的条件。
  • 在PCB布局上应提供足够的铜箔散热及对称焊盘,避免器件在焊接或使用过程中承受机械应力。
  • 存储与搬运时避免潮气和强冲击,必要时按厂方建议进行干燥烘烤处理以防回流焊时产生湿气起泡。
  • 对长期可靠性有更高要求的场合,请参照厂家的寿命与应力试验数据(高温湿热、温度循环、焊接可靠性等)。

六、选型建议与替代方案

  • 若应用对温漂与长期稳定性要求严格,建议考虑金属箔或金属膜(薄膜/线绕)低阻电阻或四端电流检测电阻,尽管成本与体积可能上升。
  • 若需要更高功率处理能力,应选择更大封装或专用电流分流器(如SMD低阻功率电阻或金属带分流器)。

备注:本文所列参数基于提供的基础信息,具体电气、热降额曲线、环境与包装信息请以UNI-ROYAL(厚声)最新规格书与样品测试为准。如需我为您整理规格书要点、推荐电路接法或计算实例,可提供更详细的PCB热阻与工作条件以便精确计算。

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