WMSIC Electronic Components

UNI-ROYAL 0805W8F499JT5E

Model0805W8F499JT5E
Package0805
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 0805W8F499JT5E
Type
UNI-ROYAL
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
UNI-ROYAL
Electronic Component
0805W8F499JT5E
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.027g
Electronic Component
49.9Ω
Electronic Component
1
Electronic Component
BM0257245631
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

0805W8F499JT5E 厚膜贴片电阻产品概述

0805W8F499JT5E是UNI-ROYAL(厚声)推出的一款通用型厚膜贴片电阻,以紧凑的0805封装实现精准阻值控制与宽温环境适配,广泛应用于消费电子、工业控制等领域的批量集成场景,兼具成本优势与性能可靠性。

一、产品核心身份与编码映射

该电阻属于厚膜贴片电阻品类,型号编码清晰对应核心特性:

  • 0805:英制贴片封装尺寸(约2.0mm×1.2mm,公制对应2012);
  • 499:阻值编码(前两位49为有效数值,第三位0.1Ω为倍率,即49.9Ω);
  • J:温度系数标识(±100ppm/℃);
  • ±1%精度:满足大多数非精密电路的阻值一致性要求。
    整体定位为“高性价比、宽温适配的通用贴片电阻”,适配自动化SMT生产。

二、关键参数详解与实际价值

(1)电气性能参数

  • 阻值与精度:49.9Ω±1%,实际阻值范围49.401Ω~50.399Ω,相比50Ω标准值更精准,适合电源反馈回路、传感器信号调理等需分压/限流精度的场景。
  • 功率与电压:额定功率125mW(0.125W),工作电压150V(直流/交流有效值)。电压与功率的匹配性优异:150V下工作电流约3mA(I=V/R),远低于功率极限(P=I²R≈0.00045W),实际降额使用可进一步提升可靠性。
  • 温度系数:±100ppm/℃,即温度每变化1℃,阻值变化±0.00499Ω。全温范围(-55℃~155℃)内阻值最大变化约±4.99Ω,稳定性满足工业级应用需求。

(2)环境与物理参数

  • 工作温度:-55℃~+155℃,覆盖汽车电子(车载环境波动)、工业现场(户外设备/控制柜)等极端场景;
  • 封装尺寸:体积小巧(2.0mm×1.2mm×0.5mm左右),适配高密度PCB设计,支持回流焊、波峰焊等主流工艺。

三、工艺特性与可靠性优势

该电阻采用厚膜印刷工艺制造,相比薄膜电阻成本更低、功率密度适中;相比绕线电阻无电感特性,避免高频信号干扰。表面镀层为无铅锡合金(符合RoHS环保标准),焊接兼容性强,焊点可靠性高。

长期使用中,厚膜结构的耐湿性、耐腐蚀性优于薄膜电阻,阻值漂移率低(厚声产品通常控制在±0.5%/1000小时以内),满足批量应用的一致性要求。

四、典型应用场景

结合参数特性,该电阻适用于以下场景:

  1. 消费电子:手机、平板、智能穿戴的电源滤波、分压电路,以及音频信号调理(无电感避免信号失真);
  2. 小型工业控制:PLC输入输出模块、传感器信号放大电路,宽温范围适配车间/户外工业环境;
  3. 汽车电子:车载小功率传感器(温度、压力传感器)的信号处理电路,符合汽车级温度要求;
  4. 通信设备:基站辅助电路、路由器电源模块,紧凑封装适配高密度PCB设计;
  5. 智能家居:智能家电(空调、洗衣机)的控制电路,批量应用成本优势明显。

五、品牌与品质背书

UNI-ROYAL(厚声)是国内被动元件领域的成熟制造商,产品通过ISO9001质量管理体系、IATF16949汽车行业认证,以及RoHS、REACH等环保认证。0805W8F499JT5E作为其通用型产品线成员,生产过程严格管控阻值一致性、焊接可靠性,适合对成本敏感但需稳定性能的批量项目。

综上,0805W8F499JT5E以“精准阻值+宽温适配+高性价比”为核心竞争力,是中低功率电路集成的可靠选择。

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