WMSIC Electronic Components

Walsin WR02X472JAL

ModelWR02X472JAL
Package0201
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
(Walsin) WR02X472JAL
Type
WALSIN
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR02X472JAL
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.008g
Electronic Component
4.7kΩ
Electronic Component
10
Electronic Component
BM0259011972
Operating Temperature
55℃~+125℃
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.

华新科WR02X472JAL片式厚膜电阻产品概述

一、产品基本定位

WR02X472JAL是华新科推出的0201封装通用型片式厚膜电阻,专为小型化、低功耗电子设备设计,核心参数匹配4.7kΩ阻值、±5%精度、50mW功率需求,属于厚膜电阻中成本与性能平衡的经典型号,广泛应用于消费电子、工业控制及物联网等领域。

二、核心参数详细解析

该型号的关键参数需结合电路设计需求明确:

  1. 阻值与标识:阻值为4.7kΩ,采用片式电阻通用的三位数字标识(472)——前两位“47”为有效数字,第三位“2”为倍率(10²),即47×10²=4700Ω=4.7kΩ,便于生产与采购识别;
  2. 精度等级:±5%,属于通用精度(Commercial Grade),满足大多数非精密电路(如信号滤波、分压、限流)的需求,无需额外成本追求更高精度;
  3. 功率与电压:额定功率50mW(即1/20W),最大连续工作电压25V——需注意电路中实际功耗需低于50mW(计算:P=V²/R,若电压25V则P=25²/4700≈13.3mW,安全余量充足);
  4. 温度特性:温度系数(TCR)±200ppm/℃,工作温度范围-55℃~+125℃——TCR表示温度每变化1℃,阻值变化±200×10⁻⁶,宽温范围适配工业级与消费电子的极端环境;
  5. 封装尺寸:0201封装(英制尺寸:0.02in×0.01in,公制:0.6mm×0.3mm,厚度≈0.23mm),是目前小型化电子设备中常用的最小封装之一,支持高密度贴装。

三、工艺与封装优势

  1. 厚膜电阻工艺:采用丝网印刷厚膜电阻浆料(如钌基浆料)在高铝陶瓷基片上,经高温烧结、电极制作(银钯/镍电极)、涂覆保护涂层而成——相比薄膜电阻成本更低,相比碳膜电阻稳定性更好,适合大规模量产;
  2. 封装可靠性:0201封装兼容主流贴装工艺(回流焊、波峰焊),无铅焊接兼容性符合RoHS标准,焊接后阻值漂移≤0.5%(长期老化后≤1%),耐湿性符合IEC 60068-2-67标准;
  3. 小型化适配:极小的封装尺寸可显著降低PCB板面积,适合智能手机、智能手环等对空间要求严苛的设备,支持多电阻密集贴装。

四、典型应用场景

该型号的参数特性决定了其适用于以下场景:

  1. 便携式消费电子:智能手机的音频滤波电路、智能手环的传感器分压电路、蓝牙耳机的信号放大电路;
  2. 工业控制模块:小型温度传感器模块的信号调理电路、低功耗PLC的辅助限流电路(宽温-55~125℃适配工业环境);
  3. 物联网节点:低功耗IoT终端的电源滤波、信号匹配电路(小型化封装适配节点尺寸);
  4. 小型家电:智能插座的状态指示电路、便携式加湿器的控制电路。

五、品牌与品质保障

华新科(Walsin)作为全球被动元件TOP10厂商,拥有超过30年的厚膜电阻生产经验,该型号:

  • 符合RoHS 2.0、REACH SVHC等环保标准,无铅无卤;
  • 经过批量老化测试(1000小时高温老化后阻值变化≤1%),可靠性符合IEC 60115-1电阻标准;
  • 供货稳定,支持常规批量(1k~100k)与定制化需求,广泛应用于华为、小米、三星等厂商的量产项目。

该型号以高性价比、小型化、宽温适配为核心优势,是小型电子设备中通用电阻的优选方案。

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