WMSIC Electronic Components

Walsin WR04X224JTL

ModelWR04X224JTL
Package0402
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

19 specifications

Core information

Product name
(Walsin) WR04X224JTL
Type
WALSIN
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR04X224JTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.012g
Electronic Component
220kΩ
Electronic Component
10
Electronic Component
BM0264592655
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

华新科WR04X224JTL片式厚膜电阻产品概述

一、产品基本定位与型号解析

华新科WR04X224JTL是一款0402封装的小型化厚膜片式电阻,属于华新科常规电阻系列,主要面向消费电子、便携式设备及工业控制等低功率场景的电路设计。型号字符含义清晰:

  • WR:华新科(Walsin)电阻产品系列标识;
  • 04X:对应英制0402封装(公制1005,尺寸约1.0mm×0.5mm);
  • 224:阻值编码,代表22×10⁴Ω=220kΩ;
  • J:精度等级代码,对应±5%(符合E24系列电阻的精度规范);
  • TL:附加标识,结合参数可对应±100ppm/℃的温度系数及宽温工作范围。

二、核心技术参数详解

该电阻的关键参数适配低功率、小型化需求,具体如下:

  1. 阻值与精度:标称阻值220kΩ,精度±5%,室温下阻值偏差范围为209kΩ~231kΩ,满足大多数常规电路的阻值要求;
  2. 功率与电压:额定功率62.5mW(即1/16W),最大工作电压50V。由功率公式P=V²/R计算,50V下实际功耗约11.4mW,远低于额定功率,因此电压限制是主要约束条件;
  3. 温度特性:温度系数为±100ppm/℃,即温度每变化1℃,阻值变化约22Ω(220kΩ×100×10⁻⁶)。工作温度范围覆盖-55℃至+155℃,可适应工业级极端环境;
  4. 工艺与材料:采用厚膜电阻工艺,通过丝网印刷电阻浆料在陶瓷基底上烧结而成,兼具成本优势与长期稳定性。

三、封装与物理特性

0402封装是电子行业常用的小型化封装之一,该电阻物理尺寸符合行业标准:

  • 长度:约1.016mm(0.04英寸);
  • 宽度:约0.508mm(0.02英寸);
  • 厚度:约0.3mm(典型值);
  • 焊盘适配:兼容常规PCB的0402焊盘设计(焊盘间距约0.5mm)。

小型化特性使其可高密度贴装,适合智能手机、智能穿戴等对PCB空间要求苛刻的产品。

四、典型应用场景

WR04X224JTL因小封装、低功率、宽温特性,广泛应用于以下场景:

  1. 消费电子:手机、平板的信号滤波电路(如射频前端匹配、音频分压)、电源管理模块的偏置电阻;
  2. 便携式设备:蓝牙耳机、智能手环的传感器接口(如加速度计、心率传感器的上拉/下拉电阻);
  3. 工业控制:小型PLC、温度传感器模块的信号调理电路(如电压分压、电流限流);
  4. 通信设备:低功率射频电路的匹配网络、光纤收发器的辅助电路。

五、品牌与可靠性说明

华新科(Walsin)是全球知名被动元件制造商,该电阻具备以下可靠性优势:

  • 符合RoHS无铅环保标准,满足欧盟REACH法规要求;
  • 宽温工作范围(-55~155℃)经过高低温循环测试,可在工业级环境下稳定工作1000小时以上;
  • 厚膜工艺避免了薄膜电阻易受机械应力影响的问题,阻值长期漂移率低(典型值<0.1%/1000小时)。

六、选型与使用注意事项

  1. 功率降额:实际应用中建议功率不超过额定功率的80%(即50mW),高温环境下需进一步降额至60%;
  2. 焊接工艺:优先采用回流焊(无铅工艺温度峰值约245℃),避免手工焊接(易导致封装开裂);
  3. 电压限制:严格控制工作电压不超过50V,若需更高电压需选择更大功率的0603封装;
  4. 精度匹配:若电路对阻值精度要求更高(如±1%),可替换为同系列精度代码F的产品(如WR04X224FTL)。

该电阻凭借成本优势与可靠性,成为中小功率电路设计的常用选型之一,可满足多数消费级与工业级场景的需求。

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