WMSIC Electronic Components

Walsin WR08X2201FTL

ModelWR08X2201FTL
Package0805
Brand(Walsin)
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

20 specifications

Core information

Product name
(Walsin) WR08X2201FTL
Type
WALSIN
Unit
Electronic Component
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR08X2201FTL
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
2.2kΩ
Electronic Component
1
Electronic Component
BM0265429558
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±100ppm/℃

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

WR08X2201FTL 厚膜固定电阻器产品概述

WR08X2201FTL是华新科(Walsin)推出的通用型表面贴装厚膜电阻器,采用0805(公制2012)封装,针对电子电路阻抗匹配、分压、限流等基础功能设计,兼具成本效益与宽温可靠性,适用于消费电子、工业控制、汽车电子等多领域场景。

一、产品基本标识与定位

该型号命名遵循华新科厚膜电阻系列规则:WR为厚膜电阻系列代码,08X对应0805英制封装,2201为阻值编码(220×10¹=2.2kΩ),FTL为精度、封装及包装后缀(F代表±1%精度,T为表面贴装,L为卷带包装)。产品定位为商业级+工业级过渡型,既满足消费电子的成本需求,又具备工业级宽温适应性。

二、核心电气参数详解

1. 阻值与精度

标称阻值为2.2kΩ,精度公差±1%,属于商业级较高精度范围——相比±5%普通电阻,可有效降低电路信号失真、采样误差,适用于电压采样、分压网络等对阻值一致性要求较高的场景。

2. 功率与电压

额定功率125mW(1/8W),是0805封装典型功率等级;额定工作电压150V(直流/交流有效值)。实际应用建议功率降额至额定值50%以内(≤62.5mW),可显著延长产品寿命。

3. 温度特性

温度系数(TCR)为**±100ppm/℃(每℃阻值变化0.01%);工作温度范围覆盖-55℃~+155℃**,符合工业级环境要求(如户外设备、高温车间),宽温下阻值稳定性优于普通碳膜电阻。

三、封装与工艺特点

1. 封装规格

采用0805英制封装(公制2012),尺寸2.0mm×1.2mm×0.5mm,焊盘兼容常规PCB贴装(推荐焊盘1.0mm×1.2mm),适合高密度电路布局,提升PCB空间利用率。

2. 厚膜工艺优势

通过丝网印刷+高温烧结在氧化铝陶瓷基板形成电阻膜,相比薄膜电阻成本降低30%,相比碳膜电阻阻值稳定性提升40%以上;陶瓷基板低热膨胀系数抑制宽温漂移,散热性能良好。

四、典型应用场景

  1. 消费电子:手机/平板电源管理(充电限流)、音频信号分压;
  2. 工业控制:PLC模拟量输入调理(电压采样、电流限制)、传感器偏置电阻;
  3. 汽车电子:仪表盘背光控制、胎压监测信号处理(适配-40℃~+85℃汽车环境);
  4. 通信设备:路由器/交换机接口阻抗匹配、电源滤波;
  5. 智能家居:智能插座过流保护、温湿度传感器分压。

五、性能优势总结

  1. 精度稳定平衡:±1%精度+±100ppm/℃温系,满足多数电路一致性要求,无需额外校准;
  2. 宽温可靠性:-55℃~+155℃覆盖工业极端环境,避免高温失效;
  3. 成本效益突出:厚膜工艺降低成本,性价比优于同精度薄膜电阻;
  4. 贴装兼容性好:0805封装适配主流SMT产线,贴装良率≥99.5%;
  5. 品牌质量保障:通过AEC-Q200(汽车级)、RoHS认证,一致性可靠。

六、选型与应用注意事项

  1. 功率降额:实际功率≤62.5mW,高功率需求选0805封装1/4W电阻;
  2. 电压限制:避免超150V电压,防止电阻膜击穿;
  3. 温系匹配:需≤±50ppm/℃时,选WR系列高精度子型号(如WR08X2201FTB);
  4. 焊盘设计:确保焊盘尺寸匹配0805封装,避免贴装偏移或焊接不良。

该产品是电子电路基础电阻的优选方案,覆盖多数中低功率、宽温场景,兼具性能与成本优势。

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