WMSIC Electronic Components

Walsin WR08X1800FTL

ModelWR08X1800FTL
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) WR08X1800FTL
Type
WALSIN
Minimum package
5000 圆盘

Technical parameters

Power
125mW
Electronic Component
Electronic Component
Electronic Component
(WALSIN)
Electronic Component
WR08X1800FTL
Electronic Component
1
Package
0805
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
180Ω
Electronic Component
1
Electronic Component
BM0264080268
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±100ppm/℃
Resistor Type
Resistor

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

WR08X1800FTL 片式厚膜电阻产品概述

一、产品定位与核心价值

WR08X1800FTL是华新科(Walsin)推出的通用型表面贴装(SMD)厚膜电阻,采用0805英制封装(对应公制2012),针对中低功率、常规精度需求的电子电路设计,核心价值在于:

  • 成本适中,适配大规模自动化生产;
  • 体积小巧,支持高密度PCB布局;
  • 宽温范围,覆盖工业级应用场景;
  • 可靠性稳定,满足长期使用要求。

二、关键技术参数详解

1. 电阻基础特性

  • 标称阻值与精度:180Ω ±1%,满足大多数电路对阻值偏差的要求(如信号分压、限流电路无需更高精度时的最优选择);
  • 温度系数(TCR):±100ppm/℃,即温度每变化1℃,阻值变化不超过180Ω×0.0001=0.018Ω,在工作温度范围内阻值漂移可控,不影响电路功能。

2. 功率与电压约束

  • 额定功率:125mW,是0805封装厚膜电阻的常规功率等级;
  • 最大工作电压:150V,需注意功率与电压的匹配关系:根据公式(P=V^2/R),150V下该电阻功率为((150^2)/180=125mW),刚好达到额定功率,实际使用需避免同时超功率/电压,建议70%功率降额(即≤87.5mW)以延长寿命。

3. 工作环境范围

  • 工作温度:-55℃+155℃,超出消费类电子(-40℃+85℃)的温度范围,可满足工业现场(如户外PLC、高温传感器)的高低温变化需求。

三、封装与物理特性

采用0805英制封装(尺寸约2.0mm×1.2mm),公制对应2012,体积小巧,适合智能手机、小型通信模块等高密度PCB设计;
厚膜工艺通过在陶瓷基板上印刷电阻浆料并烧结而成,具有:

  • 抗机械应力强(比薄膜电阻更耐振动冲击);
  • 功率密度高(适配中低功率场景);
  • 成本低(比精密薄膜电阻更具性价比);
  • 适配回流焊、波峰焊等自动化贴装工艺,生产效率高。

四、典型应用场景

1. 消费电子领域

  • 手机、平板、智能家居设备的信号调理电路(如音频输入分压、电源滤波);
  • 小功率LED驱动的限流电阻(如指示灯、背光)。

2. 工业控制领域

  • PLC、传感器接口的匹配电阻(如温度传感器信号放大偏置);
  • 电机控制电路的限流/分压电阻(适应工业现场高低温)。

3. 通信设备领域

  • 基站、路由器、交换机的偏置电路(如射频模块的直流偏置);
  • 滤波网络的电阻元件(适配高密度PCB布局)。

4. 汽车电子(低功率模块)

  • 车载中控、仪表盘的辅助电路(需确认符合汽车级认证要求,若有);
  • 低功率传感器接口的匹配电阻(宽温范围适配车载环境)。

五、可靠性与使用注意事项

1. 可靠性表现

  • 厚膜工艺电阻抗冲击、振动能力强,SMD封装与PCB贴合紧密,减少接触不良风险;
  • 长期使用阻值漂移小,符合工业级可靠性要求(如GB/T 2693-2001电子元器件固定电阻器规范)。

2. 使用注意事项

  • 功率降额:实际功率≤额定功率的70%,避免过功率老化;
  • 电压限制:不超过150V工作电压,防止绝缘击穿;
  • 焊接工艺:遵循回流焊温度曲线(峰值温度230℃~245℃,时间≤10s),避免热应力损坏电阻体;
  • 储存环境:常温干燥环境储存(温度≤30℃,湿度≤60%),避免受潮影响焊接性能。

六、选型替代参考

若需替代,可选择同参数的主流品牌产品:

  • 国巨(Yageo):RC0805FR-07180RL;
  • 三星(Samsung):RC0805JZ-07180RL;
  • 风华高科:0805B180J1%T。

华新科WR08X1800FTL的优势在于批量阻值一致性好、抗静电能力强,适合对一致性要求高的场景(如批量生产的通信设备)。

综上,WR08X1800FTL是一款性价比突出的通用型SMD厚膜电阻,可覆盖多领域中低功率电路的需求,是工业控制、消费电子等场景的优选元件。

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