WMSIC Electronic Components

华新科(Walsin) WR04X3302FTL

ModelWR04X3302FTL
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 Option 73156

Availability on request

Technical data

Product details

20 specifications

Core information

Product name
(Walsin) WR04X3302FTL
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
WR04X3302FTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
33kΩ
Electronic Component
1
Electronic Component
BM0264353248
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.

WR04X3302FTL厚膜电阻产品概述

一、产品基本信息

WR04X3302FTL是华新科(Walsin)推出的一款厚膜贴片电阻,属于WR04X系列小功率电阻产品。该型号针对高密度电路设计优化,以小封装、宽温适应、稳定性能为核心特点,广泛应用于消费电子、工业控制、汽车电子等领域。其型号遵循行业通用规则,明确了系列、阻值及封装等核心属性,是一款性价比突出的通用贴片电阻。

二、核心电气参数详解

该电阻的电气参数经过严格测试,可满足多数应用场景的性能需求:

  • 阻值与精度:固定阻值33kΩ,精度±1%,即阻值偏差控制在±330Ω以内,能满足模拟电路中信号分压、电流采样等对精度要求稳定的场景;
  • 功率容量:额定功率1/16W(62.5mW),实际工作功率需严格控制在此值内,避免阻值漂移或损坏;
  • 工作电压:最大工作电压50V(直流/交流峰值),使用时需结合电路电压计算功率(P=U²/R),防止超压;
  • 温度系数:±100ppm/℃,温度每变化1℃,阻值变化±3.3Ω(33kΩ×100ppm),在-55℃~+155℃范围内,阻值最大变化约±330Ω,与精度要求一致;
  • 工作温度范围:-55℃至+155℃,覆盖工业级、汽车级基础应用的温度区间,适应极端环境。

三、封装与物理特性

WR04X3302FTL采用0402封装(英制,对应公制1005),尺寸为长1.0mm×宽0.5mm,是小尺寸贴片电阻的典型代表,适配高密度PCB布局(如智能手机主板、可穿戴设备)。封装工艺采用陶瓷基片+厚膜电阻浆料:陶瓷基片导热性优异,可快速散发热量;厚膜浆料附着力强,长期使用不易脱落,兼顾成本与可靠性。此外,该封装兼容无铅回流焊,符合RoHS环保要求,适配现代电子制造流程。

四、典型应用场景

结合参数特点,该电阻的典型应用包括:

  1. 消费电子:智能手机、平板电脑的信号调理电路(音频放大、射频前端分压),利用小封装实现主板小型化;
  2. 工业控制:传感器接口电路(温度/压力传感器滤波),宽温范围适应工业现场温度波动;
  3. 汽车电子:辅助驾驶低功耗模块(倒车雷达信号处理),覆盖汽车级-40℃~+125℃需求;
  4. 可穿戴设备:智能手环/手表的电池监测电路(电压分压采样),低功率+小封装适配设备小型化;
  5. 通信设备:小型基站射频辅助电路(功率分配匹配),稳定精度满足射频信号要求。

五、可靠性与环境适应性

华新科对该电阻进行了多维度可靠性验证:

  • 长期稳定性:125℃、额定功率下持续1000小时负载试验,阻值变化≤0.5%,优于行业标准;
  • 环境适应性:85℃/85%RH湿度试验500小时,阻值变化≤0.2%;-55℃~+155℃循环500次,无封装开裂、阻值漂移;
  • 焊接可靠性:无铅回流焊后,焊接强度符合IPC标准,无虚焊假焊,适配批量生产一致性。

六、品牌与选型优势

选择该电阻的核心优势:

  1. 品牌保障:华新科是全球知名被动元件供应商,产品一致性好,供应链稳定,满足量产需求;
  2. 参数平衡:1%精度、62.5mW功率、宽温范围的组合,覆盖多数中低端场景,无需额外成本;
  3. 成本优势:厚膜工艺比高精度薄膜电阻成本更低,适合成本敏感的消费电子、工业批量项目;
  4. 选型便捷:型号命名清晰,参数明确,可快速匹配电路设计,无需额外验证。

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