WMSIC Electronic Components

UNI-ROYAL 0201WMF270JTEE

Model0201WMF270JTEE
Package0201
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UNI-ROYAL 0201WMF270JTEE
Type
UNI-ROYAL
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0201WMF270JTEE
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.008g
Electronic Component
27Ω
Electronic Component
50
Electronic Component
BM0257242460
Operating Temperature
55℃~+155℃
Operating Voltage
25V
Electronic Component
±200ppm/℃
Resistor Type
Resistor

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

0201WMF270JTEE 产品概述

一、产品简介

0201WMF270JTEE 为 UNI-ROYAL(厚声)系列厚膜贴片电阻,阻值 27Ω,精度 ±1%,功率额定 50mW,工作温度范围 -55℃ 至 +155℃,温度系数(TCR)±200ppm/℃,标称工作电压 25V,封装规格 0201。该器件定位于超小型、通用信号级电路场合,适用于体积受限的便携式与高密度 PCB 设计。

二、主要技术参数

  • 阻值:27Ω
  • 公差:±1%(J)
  • 功率额定:50mW(静态/连续)
  • 标称工作电压:25V(见说明)
  • 温度系数:±200ppm/℃(典型)
  • 工作温度:-55℃ ~ +155℃
  • 封装:0201(超小型贴片)
  • 型号:0201WMF270JTEE
  • 品牌:UNI-ROYAL(厚声)

三、电气特性与实用计算说明

  • 精度 ±1% 即阻值允许在 27Ω ±0.27Ω 范围内变化。
  • TCR ±200ppm/℃ 表示每 ℃ 阻值变化约为 27Ω×200×10^-6 ≈ 0.0054Ω(5.4mΩ)。温度上升 100℃ 时理论变化约 0.54Ω,约占原始阻值的 2%。
  • 功率与工作电压关系:器件额定功率为 50mW,但对特定阻值的安全连续直流电压应由 Vmax = sqrt(P×R) 计算,带入值约为 sqrt(0.05×27) ≈ 1.16V。因此,在实际电路设计中,不应简单以铭牌“工作电压 25V”作为在 27Ω 上的连续使用电压;25V 为器件绝对耐压或特殊规格时的上限,连续工况必须使器件功耗不超过 50mW。若需更高电压工作,应采用脉冲驱动并经热分析验证。

四、封装、焊接与安装注意事项

  • 0201 为超小型封装,对贴装精度、焊盘设计与助焊膏量要求高。建议使用自动贴片机和高精度贴装头。
  • 建议在 PCB 设计时优化焊盘过孔与铜箔面积,以改善散热但避免因焊盘过大导致焊接应力。
  • 与厚膜电阻兼容的无铅回流焊工艺一般可接受(参考峰值 ≤260℃),但需按厂家推荐的回流曲线进行验证,避免过长高温暴露。
  • 处理时注意防静电与防机械应力,0201 尺寸脆弱,搬运、清洗及测试时应采取轻拿轻放措施。

五、典型应用场景

  • 便携式与可穿戴设备中的限流、阻尼或偏置电路(低电压、小功率场合)。
  • 信号链路中的终端匹配与阻尼(注意功耗受限)。
  • 高密度 PCB(如手机模块、IoT 芯片附近)对体积要求高的场合。
  • 一般电子产品的通用分流与电阻网络(非高精密低噪场合,厚膜相比薄膜噪声略高)。

六、可靠性与质量控制

该系列产品工作温度范围宽(-55℃ 至 +155℃),在工业和汽车电子的温度要求上具有良好适应性。厚膜工艺经济可靠,适合大批量生产。为保证长期性能,建议在设计初期进行温升测试、热循环和湿热试验,并按照 IPC/JEDEC 标准进行焊接与可靠性验证。

七、包装与订购建议

通常以卷盘(Tape & Reel)形式供货,便于 SMT 贴装线使用。订购时请确认阻值公差、温度系数和具体包装卷长,向供应商索取器件数据手册(包含回流曲线、热阻及寿命测试数据)以便完成可靠性评估与量产导入。

总结:0201WMF270JTEE 是一款面向超小型、高密度布局的通用厚膜贴片电阻,适合低功耗、低电压的精密布板场景。设计时须严格遵守功率限制与焊接规范,合理评估电压与热性能以确保长期可靠运行。

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