WMSIC Electronic Components

RALEC RAT021002FTH

ModelRAT021002FTH
Package0402
BrandRALEC
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 159790

Availability on request

Technical data

Product details

19 specifications

Core information

Product name
RALEC RAT021002FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RAT021002FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
10kΩ
Electronic Component
10
Electronic Component
BM0265139390
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

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

RALEC RAT021002FTH 厚膜贴片电阻产品概述

一、产品定位与核心特性

RALEC(旺诠)RAT021002FTH是一款针对小型化、高精度、宽温域需求设计的厚膜贴片电阻,属于旺诠经典0402封装系列。其核心定位是为消费电子、工业控制、汽车电子等领域的高密度PCB电路提供稳定可靠的阻值匹配方案,核心特性包括:10kΩ标准阻值、±1%高精度、0.0625W(62.5mW)低额定功率、±100ppm/℃温度系数,以及-55℃至+155℃的宽工作温度范围,适配多场景下的长期稳定运行。

二、关键参数详解

1. 阻值与精度

  • 阻值:10kΩ(10×10³Ω),是电子电路中最常用的标准阻值之一,广泛用于分压、限流、上拉/下拉、滤波等功能,兼容性极强,无需额外定制即可适配多数通用电路设计。
  • 精度:±1%,满足一般工业、消费电子对阻值偏差的要求(优于±5%普通电阻),适合信号调理电路(如传感器输出放大)、基准电压电路等对阻值一致性要求较高的场景。

2. 功率与温度特性

  • 额定功率:62.5mW(0.0625W),对应0402封装的典型功率规格,设计时需注意实际功耗需控制在额定值内(建议降额至50%以下,即31.25mW,延长使用寿命)。
  • 温度系数(T.C):±100ppm/℃,表示温度每变化1℃,阻值变化仅为百万分之一百。以10kΩ为例,温度从-55℃升至+155℃(温差210℃),阻值最大漂移约为2.1Ω,远低于多数电路的误差容忍范围,宽温环境下稳定性突出。
  • 工作温度范围:-55℃至+155℃,覆盖工业级(-40℃+85℃)、部分汽车级(-40℃+125℃)场景,甚至能应对155℃的高温环境(如工业烤箱内的小型控制电路)。

3. 封装与尺寸

  • 封装:0402(英制命名,对应公制1005),尺寸为0.04英寸(长)×0.02英寸(宽)×0.02英寸(高),是目前贴片电阻中小型化程度较高的封装之一,适配高密度PCB设计(如智能手机主板、智能穿戴设备),可显著减少电路占用空间。

三、封装与可靠性设计

旺诠针对RAT021002FTH采用成熟厚膜工艺,结合0402封装的可靠性优化:

  1. 厚膜印刷技术:采用银钯(Ag-Pd)电极+玻璃釉涂层结构,相比薄膜电阻更耐冲击,相比碳膜电阻更稳定;
  2. 抗硫化设计:电极采用抗硫化配方,避免高湿度、含硫环境(如部分工业场所)下接触不良,提升长期可靠性;
  3. 焊接兼容性:支持回流焊、波峰焊等主流SMT工艺,回流焊峰值温度≤260℃(符合0402封装标准),焊接后无需额外处理即可保证性能;
  4. 可靠性测试:通过高温存储(155℃×1000h)、温度循环(-55℃~+155℃×1000次)、湿度偏压(85℃/85%RH×1000h)等测试,阻值变化率控制在0.5%以内,满足工业级要求。

四、典型应用场景

RAT021002FTH的参数特性适配多领域小型化电路:

  1. 消费电子:智能手机、智能手表的传感器信号调理(加速度计分压)、低功耗MCU上拉/下拉电阻;
  2. 工业控制:小型PLC模块、PT100温度传感器放大电路、工业物联网(IIoT)节点低功耗电路;
  3. 汽车电子:车载胎压监测模块、北方低温环境下的辅助控制电路;
  4. 通信设备:小型基站、路由器的高速信号滤波、光模块偏置电阻;
  5. 医疗设备:便携式血糖仪、血压计的低功耗电路、传感器信号校准电阻。

五、选型与使用注意事项

  1. 降额使用:实际功耗需控制在额定功率50%以下(≤31.25mW),避免过载导致阻值漂移;
  2. 焊接温度:回流焊峰值温度≤260℃,波峰焊时间不超过3s,防止热损伤;
  3. 储存条件:未焊接电阻储存在常温干燥环境(25±5℃,湿度40%~60%),避免高湿、含硫环境;
  4. 精度匹配:若需±0.1%高精度,需选旺诠RTC薄膜电阻系列,本款仅满足常规需求;
  5. 温度补偿:宽温场景(-55℃~+155℃)若需更高稳定性,可加入NTC热敏电阻做温度补偿。

该产品凭借旺诠的工艺积累与参数适配性,成为小型化电路中“高性价比、高可靠性”的电阻选型首选。

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