WMSIC Electronic Components

Walsin WR08W3R30FTL

ModelWR08W3R30FTL
Package0805
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) WR08W3R30FTL
Type
WALSIN
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR08W3R30FTL
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
3.3Ω
Electronic Component
1
Electronic Component
BM0265429567
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
200ppm/℃~+400ppm/℃
Resistor Type
Resistor

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

WR08W3R30FTL 厚膜片式电阻产品概述

WR08W3R30FTL是华新科(Walsin)推出的一款0805封装厚膜片式电阻,属于通用精密型被动元件,专为小功率电路的阻值稳定控制设计,兼顾成本与性能,广泛适配消费电子、汽车电子等多领域应用。

一、产品核心身份与定位

该型号电阻基于华新科成熟的厚膜电阻工艺制造,属于0805封装系列中的常规精密款——阻值固定为3.3Ω,精度达±1%,功率规格为1/8W(125mW),是电子电路中实现分压、限流、电流采样等基础功能的可靠选择,尤其适合对空间紧凑性要求较高的贴片生产场景。

二、关键电气性能参数详解

1. 阻值与精度

固定阻值3.3Ω,精度±1%,满足多数电路对阻值偏差的基本要求(无需超高精度的场景下,可替代更高成本的精密电阻),避免因阻值偏差导致的电路功能偏移。

2. 功率与电压能力

  • 额定功率125mW(1/8W):是0805封装厚膜电阻的典型功率等级,适配小功率电路的功耗需求,如低功耗传感器、小型LED驱动等;
  • 最大工作电压150V:支持直流或低频交流电路的电压承载,避免过压击穿风险,可用于12V~150V范围内的电路设计。

3. 温度特性

温度系数(TCR)为**-200ppm/℃+400ppm/℃**,即温度每变化1℃,阻值变化范围在-0.02%+0.04%之间,符合厚膜电阻的常规温漂特性,在宽温环境下仍能保持相对稳定的阻值表现,无需额外温控补偿。

三、物理封装与工艺优势

采用0805表面贴装封装(英制尺寸:0.08英寸×0.05英寸,公制尺寸:2.0mm×1.2mm),具备以下核心优势:

  • 体积小巧:占用PCB板面积仅约2.4mm²,适合高密度电路布局(如智能手机主板、小型通信模块),有效节省空间;
  • 厚膜工艺:通过丝网印刷、高温烧结等工艺形成电阻膜,成本低于薄膜电阻,同时性能稳定,抗过载能力优于部分薄膜产品;
  • 贴装兼容性:适配自动化贴片生产线,可实现高速批量组装,降低生产人工成本,提升产能效率。

四、环境适应性与可靠性

1. 宽温工作范围

支持**-55℃~+155℃**的极端温度环境,覆盖汽车电子(发动机舱高温、冬季低温)、工业控制(户外设备、高低温车间)等场景的温度需求,无需额外防护即可稳定运行。

2. 可靠性验证

华新科对该型号电阻进行了多项可靠性测试(如温度循环、湿度老化、耐焊接热、负载寿命等),符合IEC、JIS等国际标准,长期使用无明显阻值漂移或性能衰减,可满足5年以上的产品生命周期需求。

五、品牌与品质保障

华新科(Walsin)是全球知名的被动元件制造商,拥有数十年电阻、电容等产品的研发生产经验,WR08W3R30FTL继承了品牌的品质基因:

  • 环保合规:符合RoHS、REACH等环保指令,无铅无镉,适配绿色电子产品设计,避免出口限制;
  • 批量一致性:通过严格的生产管控(如电阻膜厚度均匀性控制、封装精度校准),批量产品的阻值、功率等参数一致性高,减少电路调试难度,提升产品良率。

六、典型应用领域

该电阻因参数适配性强,广泛应用于以下场景:

  1. 消费电子:智能手机、平板电脑的电源管理电路(限流、分压)、音频模块的信号调节、无线充电辅助电路;
  2. 汽车电子:车载传感器(温度、压力传感器)的信号采样、小功率控制电路(LED指示灯驱动、继电器线圈保护);
  3. 工业控制:PLC(可编程逻辑控制器)的输入输出接口限流、小型电机驱动电路的电流检测;
  4. 通信设备:基站辅助电路的电流监测、小型无线模块(蓝牙、WiFi)的电压调节。

特别说明:3.3Ω的低阻值结合1/8W功率,可用于小电流采样(最大采样电流约195mA),适合低功耗电路的电流监测需求,如电池管理系统的小电流检测。

综上,WR08W3R30FTL是一款性价比突出的通用精密片式电阻,以稳定的性能、紧凑的封装和宽温适应性,成为多领域电路设计的优选元件。

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