WMSIC Electronic Components

Walsin WR04X4702FTL

ModelWR04X4702FTL
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

20 specifications

Core information

Product name
(Walsin) WR04X4702FTL
Type
WALSIN
Unit
Electronic Component
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR04X4702FTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
47kΩ
Electronic Component
10
Electronic Component
BM0264549883
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±100ppm/℃

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

华新科WR04X4702FTL厚膜电阻产品概述

一、产品基本定位

华新科WR04X4702FTL是一款0402封装厚膜表面贴装电阻,专为小型化、高集成度电子设备设计,兼顾精度、功率与环境适应性,是替代传统插件电阻、提升电路密度的高性价比选择。该产品适配消费电子、工业控制、汽车电子等多领域,可满足低功耗电路的分压、限流、信号调理等核心需求。

二、核心参数详解

该电阻的参数覆盖应用关键场景,核心指标如下:

  • 阻值与精度:标称阻值47kΩ(代码“4702”),精度±1%,无需额外校准即可实现分压、信号放大等电路的稳定输出,满足大部分工业级、消费级设备对阻值一致性的要求;
  • 功率与电压:额定功率62.5mW(1/16W),最大工作电压50V,结合功率公式((I=V/R))可支持约1.06mA的小电流场景,适配低功耗电路设计;
  • 温度特性:温度系数±100ppm/℃,即温度每变化100℃,阻值漂移±1%,宽温范围内性能可控;
  • 工作温度:-55℃~+155℃,覆盖工业级、汽车级常规环境温度区间,可应对极端温差场景(如北方冬季户外设备、高温工业车间)。

三、封装与工艺特点

  1. 封装尺寸:采用0402英制封装(对应1005公制,尺寸1.0mm×0.5mm),体积小巧,可有效降低PCB占板面积,适配手机、智能手表等高密度布局设备;
  2. 厚膜工艺:华新科成熟厚膜技术制备,通过丝网印刷、高温烧结等工艺实现电阻膜层稳定,兼顾成本与性能,避免薄膜电阻的高成本或碳膜电阻的精度不足问题;
  3. 贴装适配性:无引脚设计,兼容回流焊、波峰焊等自动化生产工艺,提升电子厂生产效率;
  4. 环保合规:焊端采用无铅工艺,符合RoHS、REACH等全球环保标准,满足欧盟、中国等市场准入要求。

四、典型应用场景

结合参数特性,WR04X4702FTL适用于以下场景:

  • 消费电子:手机、平板的信号滤波电路、耳机音频放大辅助电阻、智能手表的传感器分压网络;
  • 工业控制:PLC输入输出模块的限流电阻、温度/压力传感器的信号调理电阻、小型电机驱动辅助电路;
  • 汽车电子:车载仪表盘背光控制电阻、CAN总线终端匹配电阻(需结合汽车级认证确认)、车载充电器的电压分压电路;
  • 通信设备:路由器、基站射频电路的阻抗匹配电阻、电源滤波网络的限流元件;
  • 小型家电:智能插座的控制电路、遥控器的按键扫描电阻、小型加湿器的驱动辅助电阻。

五、可靠性与环境适应性

该电阻具备可靠的环境耐受能力:

  • 温度循环稳定性:经过-55℃~+155℃温度循环测试(1000次),阻值漂移≤0.5%,可长期工作于极端温差环境;
  • 湿度适应性:厚膜电阻膜层抗湿度性能优异,可应对85℃/85%RH高湿度环境下的长期使用(1000小时测试阻值漂移≤1%);
  • 抗浪涌能力:满足IEC 61000-4-5浪涌测试要求(2kV/1.2/50μs),可承受短时间过压冲击;
  • 长期存储稳定性:室温下存储1000小时,阻值漂移≤0.2%,适合对寿命要求较高的工业设备、汽车电子。

六、品牌与品质保障

华新科(Walsin)作为全球被动元件领域的知名厂商,为该产品提供可靠保障:

  • 品质认证:通过ISO9001质量管理体系、IATF16949汽车行业认证,产品一致性可控(批量生产阻值偏差≤±1%);
  • 全球供货:在中国大陆、台湾、泰国等地设有生产基地,年产能超百亿只,可满足客户批量订单需求;
  • 技术支持:提供专业的应用设计支持,协助客户优化电路参数,解决生产中的贴装、焊接问题;
  • 市场验证:广泛服务于华为、小米、三星等知名企业,产品性能经市场长期验证,口碑稳定。

综上,华新科WR04X4702FTL是一款兼顾小型化、精度与可靠性的厚膜电阻,可满足多领域电子设备的核心需求,是电子设计中替代传统电阻的优选方案。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.