WMSIC Electronic Components

Walsin WR04X1004FTL

ModelWR04X1004FTL
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 73150

Availability on request

Technical data

Product details

20 specifications

Core information

Product name
(Walsin) WR04X1004FTL
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
WR04X1004FTL
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.012g
Electronic Component
1MΩ
Electronic Component
10
Electronic Component
BM0265418979
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WR04X1004FTL厚膜电阻产品概述

华新科(Walsin)WR04X1004FTL是一款专为高密度电路设计的小封装厚膜电阻,凭借稳定的性能、宽温适应性及高性价比,广泛应用于消费电子、工业控制、汽车电子等领域。以下从核心参数、工艺特性、应用场景等维度展开详细介绍。

一、产品基本信息

  • 品牌与系列:华新科(Walsin)WR04X系列厚膜电阻
  • 型号含义:WR04X(系列标识)+1004(阻值代码:100×10⁴Ω=1MΩ)+FTL(精度、功率及封装标识)
  • 基础类型:厚膜电阻(厚膜印刷+激光微调工艺)
  • 封装规格:0402(英制,对应公制1005),尺寸约1.0mm×0.5mm,引脚间距0.5mm
  • 核心参数:阻值1MΩ±1%、功率1/16W(62.5mW)、工作电压50V、温度系数±100ppm/℃、工作温度-55℃~+155℃

二、核心性能参数深度解析

1. 阻值与精度

阻值1MΩ±1%,通过激光微调工艺实现高精度控制,偏差范围满足多数通用电路的信号调理、分压、偏置需求。厚膜电阻的阻值稳定性优于碳膜电阻,长期工作后阻值漂移较小。

2. 功率与散热

额定功率1/16W(62.5mW),适配0402小封装的散热能力。实际应用中需注意温度降额:125℃以上时功率线性降低(如155℃时仅用额定功率的50%),避免过热失效。

3. 工作电压限制

最大工作电压50V是耐压上限,需同时满足“电压≤50V”与“功率≤实际可用功率”(如1MΩ在50V下功率仅2.5mW,电压约束更严格)。

4. 温度系数(TCR)

±100ppm/℃即每℃阻值变±0.01%,-55℃至155℃总变化约±2.1%,可满足汽车/工业场景的温度稳定性要求。

三、封装与工艺特性

1. 小封装适配高密度设计

0402封装(1005公制)尺寸极小,适合手机、智能穿戴等便携设备的高密度PCB布局,有效节省空间。

2. 厚膜工艺优势

  • 激光微调精度:精细切割电阻层实现±1%高精度;
  • 表面处理:镀锡/镍适配回流焊,焊接可靠性高;
  • 抗干扰能力:厚膜层致密,抗湿度、污染能力优于薄膜电阻。

四、典型应用场景

1. 消费电子

  • 手机/平板:信号放大偏置、触控屏分压电路;
  • 智能穿戴:心率传感器信号调理、低功耗模块限流。

2. 工业控制

  • 传感器信号处理:温度/压力传感器放大偏置;
  • PLC模块:输入输出分压、限流,适配-55℃~+125℃温区。

3. 汽车电子

  • 车载信息娱乐系统:低功耗模块偏置;
  • 车身控制单元(BCM):小信号调理,符合汽车级宽温要求。

4. 通信设备

  • 基站射频前端:直流偏置限流;
  • 路由器/交换机:信号滤波匹配电阻。

五、环境适应性与可靠性

1. 宽温工作能力

-55℃~+155℃覆盖工业、汽车级场景,无需额外散热。

2. 长期可靠性

  • 负载寿命:1000小时阻值变化≤±0.5%(IEC 60115标准);
  • 耐湿性能:40℃/95%RH下1000小时阻值变化≤±1%;
  • ESD耐受:8kV接触/15kV空气放电,适合生产线操作。

六、选型与应用注意事项

1. 功率降额

  • ≤125℃:按额定功率使用;
  • 125℃~155℃:功率=62.5mW×(155-环境温度)/30;
  • 示例:150℃时最大可用功率≈10.4mW。

2. 焊接工艺

  • 回流焊:符合J-STD-020(峰值245℃±5℃,时间≤10s);
  • 手工焊接:温度≤350℃、时间≤3s(优先回流焊)。

3. 静电防护

操作时佩戴防静电手环,使用防静电工作台,避免精度下降。

总结

华新科WR04X1004FTL厚膜电阻凭借小封装、宽温、高精度、高可靠性,成为中高端电子设备高密度电路的优选元件,平衡性能与成本,适配多领域差异化需求。

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