WMSIC Electronic Components

RALEC RTT021802FTH

ModelRTT021802FTH
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RALEC RTT021802FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT021802FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
18kΩ
Electronic Component
10
Electronic Component
BM0265577634
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.

RALEC RTT021802FTH 厚膜贴片电阻产品概述

一、产品基本定位与封装规格

RALEC RTT021802FTH是台湾旺诠(RALEC)推出的通用型厚膜贴片电阻,主打小型化、宽温稳定特性,适配高密度电路设计。该电阻采用0402英制封装(对应公制1005规格),体积仅约1.0mm×0.5mm,能有效压缩PCB布局空间,适合便携式设备、小型化电子系统的集成需求。

二、核心电气参数及性能解读

RTT021802FTH的参数围绕“低功耗场景下的稳定可靠”设计,关键指标如下:

  1. 阻值与精度:固定阻值18kΩ,精度±1%——满足多数工业控制、消费电子的精密电路需求(如信号放大、分压网络),无需额外校准即可稳定工作;
  2. 功率等级:额定功率1/16W(62.5mW),匹配0402封装的功率上限,适配电池供电设备、传感器前端等低功耗场景;
  3. 工作电压:最大50V——需注意电路中直流电压或交流峰值电压不超该值,避免电击穿;
  4. 温度系数(TCR):±100ppm/℃——温度每变化1℃,阻值变化约0.01%;若环境温度变化100℃(如-55℃→45℃),阻值漂移仅±1%,稳定性优于一般消费类电阻;
  5. 工作温度范围:-55℃~+155℃——覆盖工业级宽温场景(如户外设备、车载辅助电路),远超普通电阻的+85℃上限。

三、材料与工艺特点

作为厚膜电阻,RTT021802FTH采用丝网印刷+高温烧结工艺:

  • 电阻层为金属氧化物厚膜材料,成本低于薄膜电阻,且耐过负荷能力更强;
  • 端电极采用“镍层+锡层”多层结构,焊接兼容性好,回流焊后焊点可靠性高;
  • 旺诠严格控制工艺一致性,批量产品的阻值偏差、温度系数波动极小,降低电路调试难度。

四、典型应用场景

结合参数优势,该电阻主要应用于以下领域:

  1. 消费电子:智能手机、平板的信号调理电路(音频滤波、触控分压);
  2. 工业控制:传感器信号放大(温度/压力传感器前端)、PLC模块偏置电阻;
  3. 通信设备:小型基站、路由器的射频前端匹配电路(小封装高密度布局);
  4. 医疗设备:便携式监护仪的低功耗监测电路(稳定可靠、宽温适配);
  5. 车载辅助电路:仪表盘背光控制、传感器接口(宽温范围可覆盖部分车载场景)。

五、选型与使用注意事项

为保证可靠性,使用时需注意:

  1. 功率降额:155℃高温环境下,实际功率需降至额定值的50%以下,避免过热导致阻值漂移;
  2. 电压限制:电路电压需低于50V(交流峰值),高压场景需串联保护或换用更高耐压电阻;
  3. 焊接工艺:遵循旺诠推荐的回流焊曲线(峰值245℃±5℃,回流时间30~60秒),避免高温损坏;
  4. 储存条件:未开封产品储存在25℃±5℃、湿度60%±10%环境,开封后12个月内使用,防止受潮影响焊接。

六、品牌与环保优势

旺诠(RALEC)是全球被动元件供应商,RTT021802FTH具备:

  • 环保认证:符合RoHS 2.0、REACH标准,无铅无卤,适配绿色产品设计;
  • 可靠性:通过振动、温度循环测试,工业级MTBF超10万小时;
  • 批量供应:产能稳定,可满足大规模生产的采购需求,交货周期短。

该产品平衡了“小体积、宽温、成本”三者,是工业控制、消费电子等领域的高性价比选择。

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