WMSIC Electronic Components

UNI-ROYAL 0201WMF300KTEE

Model0201WMF300KTEE
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UNI-ROYAL 0201WMF300KTEE
Type
UNI-ROYAL
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0201WMF300KTEE
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.008g
Electronic Component
3Ω
Electronic Component
10
Electronic Component
BM0263575107
Operating Temperature
55℃~+155℃
Operating Voltage
25V
Electronic Component
100ppm/℃~+350ppm/℃
Resistor Type
Resistor

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

0201WMF300KTEE 产品概述

一、产品简介

0201WMF300KTEE 是 UNI-ROYAL(厚声)出品的贴片厚膜电阻,规格为 0201 封装,阻值 3Ω,精度 ±1%,额定功率 50mW,额定工作电压 25V。工作温度范围 -55℃ 至 +155℃,温度系数标注为 -100ppm/℃ ~ +350ppm/℃。该系列以超小封装和可靠的批量一致性为特点,适用于高密度 PCB 及微型化电子设备。

二、主要技术参数

  • 电阻类型:厚膜电阻
  • 阻值:3Ω
  • 精度:±1%
  • 额定功率:50mW
  • 额定工作电压:25V
  • 温度系数(TCR):-100ppm/℃ ~ +350ppm/℃
  • 工作温度:-55℃ ~ +155℃
  • 封装:0201(超小型贴片)

三、关键特性与设计注意

  • 小尺寸高密度:0201 封装适合空间受限、需要高面积利用率的移动设备、穿戴类和射频模块等。
  • 低阻值使用限制:虽然标称工作电压 25V,但对 3Ω 的电阻来说,功率限制更为关键。理论上最大允许电流 Imax = sqrt(P/R) ≈ 0.129 A(约129 mA),对应电压 V = Imax × R ≈ 0.39 V。因此在电路设计中,应以功耗限制而非额定电压来评估实际允许电压与电流。
  • TCR 范围较宽:-100ppm/℃ 到 +350ppm/℃,说明该厚膜料系在温度变化下阻值可能出现正负方向漂移,若用于高精度或温度敏感电路需谨慎评估或考虑温漂更优的型号(如薄膜或金属膜/金属箔产品)。

四、典型应用场景

  • 高密度消费电子:智能手机、平板、可穿戴设备中用于信号阻尼、阻抗匹配或去耦网络。
  • 低功耗电路:作为小电流限流或分流检测(低电流场景)使用,但应保证不超过功耗极限。
  • 射频前端与传感器接口:在要求占板面积低且阻值稳定性在允许范围内的场合使用。

五、可靠性与焊接建议

  • 焊接兼容性:厚膜贴片通常可承受常规回流焊工艺,但建议按照供应商推荐的回流曲线控制峰值温度与时间,以避免热应力造成性能漂移或开裂。
  • 焊盘设计与散热:0201 尺寸极小,焊盘形状、焊膏量及周围铜箔对散热影响显著。对长期功耗使用应优化散热路径并在设计中考虑功率降额。
  • 环境可靠性:工作温度范围宽,可在工业级温度条件下工作,但长期暴露在极端潮湿或机械振动环境需进行额外可靠性验证。

六、选型建议

  • 若需更小温漂与更高长期稳定性,建议考虑薄膜或金属膜/金属箔低阻值器件;若空间受限且电流较小,0201WMF300KTEE 为成本与密度间的折中选择。
  • 在电流接近百毫安级别或持续发热场景,应评估更高功率或更大封装的电阻以保证长期可靠性。

结论:0201WMF300KTEE 以其超小封装和 ±1% 精度适合高密度、低功耗应用,但在使用时需重点考虑功率限制与温漂特性,合理设计焊接与散热,确保在目标应用中实现稳定可靠的性能。若需样品、回流曲线或更详细的可靠性数据,请向供应商 UNI-ROYAL 索取技术资料。

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