WMSIC Electronic Components

TA-I RM04FTN1802

ModelRM04FTN1802
Package0402
BrandElectronic Component
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
RM04FTN1802
Type
TA-I Technology
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RM04FTN1802
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
18kΩ
Electronic Component
1
Electronic Component
BM0263510271
Operating Temperature
55℃~+155℃
Operating Voltage
50V
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.

RM04FTN1802 厚膜贴片电阻产品概述

RM04FTN1802是大毅科技针对小型化、低功耗电子设备设计的0402封装厚膜贴片电阻,兼具高性价比与稳定性能,广泛适配便携电子、IoT模块、工业控制等高密度布局场景。以下从核心特性、参数、工艺、应用等维度展开说明:

一、产品定位与核心优势

该电阻聚焦小尺寸+常规精度+宽温适配的市场需求,核心优势体现在:

  • 0402微型封装(1.0mm×0.5mm),可显著节省PCB空间,适配智能手机、智能手环等便携设备的高密度布局;
  • 厚膜工艺平衡成本与性能,耐过流能力优于薄膜电阻,适合批量生产;
  • 宽温范围(-55℃~+155℃)覆盖工业、车载等复杂环境,满足户外设备长期运行需求。

二、关键参数详解

参数设计贴合低功耗电路的实际需求,核心参数如下:

  1. 阻值与精度:18kΩ(四位代码1802标识,180×10²=18000Ω),精度±1%——可满足多数常规电路(如传感器分压、信号偏置)的阻值一致性要求,无需额外校准;
  2. 功率与电压:额定功率62.5mW(0.0625W),最大工作电压50V——实际工作中需结合功率限制(I≤√(0.0625/18000)≈1.8mA),避免过载;
  3. 温度特性:温度系数±100ppm/℃——环境温度变化10℃时,阻值变化约18Ω,适配非精密信号处理场景;
  4. 工作温区:-55℃~+155℃——通过高低温循环测试,可应对车载低温(-40℃)、工业高温(125℃)等极端环境。

三、封装与工艺特点

  • 0402封装:英制尺寸(0.04英寸×0.02英寸),公制1005,是当前小型电子设备的主流封装之一,可与0402电容、电感等元件兼容布局;
  • 厚膜工艺:采用丝网印刷技术在氧化铝陶瓷基片上制备电阻层,相比薄膜电阻成本降低30%以上,且耐机械冲击(跌落测试符合IEC 60068-2-32标准);
  • 引脚设计:端电极采用镍/锡镀层,焊接兼容性好,可适配回流焊、波峰焊等工艺。

四、典型应用场景

该电阻的参数特性使其适配多领域低功耗电路:

  1. 便携电子:智能手机加速度计偏置电阻、智能手环心率传感器分压电路;
  2. IoT模块:低功耗蓝牙模块滤波电阻、无线收发器偏置网络;
  3. 工业控制:小型PLC输入接口限流电阻、温度传感器信号转换电阻;
  4. 汽车电子:车载胎压监测模块信号处理电阻(宽温适配);
  5. 消费电子:蓝牙耳机充电电路辅助电阻、智能插座电压检测电阻。

五、可靠性与使用注意事项

  1. 可靠性验证:通过湿热测试(85℃/85%RH,1000小时)、温度循环测试(-55℃~155℃,500次),阻值漂移≤0.2%;
  2. 焊接注意:0402封装需精细焊接,烙铁头温度控制在280-300℃,焊接时间≤3秒,避免虚焊;
  3. 功率限制:实际工作电流不得超过1.8mA,若需求更高功率(如0.1W),需更换0603封装;
  4. 精度适配:若电路需±0.1%高精度(如仪表电路),需选用薄膜电阻替代。

综上,RM04FTN1802是一款性价比突出的微型厚膜电阻,适合对尺寸、成本敏感且无需超高精度的低功耗电子设备,是便携电子、IoT等领域的常规选型方案。

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