WMSIC Electronic Components

RALEC RTT021780FTH

ModelRTT021780FTH
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 26+

Available for RFQ

Technical data

Product details

13 specifications

Core information

Product name
RALEC RTT021780FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT021780FTH
Electronic Component
1
Package
0402
Electronic Component
0.009g
Electronic Component
50
Electronic Component
BM0265966496
Electronic Component
Electronic Component
Electronic Component
10000

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

RALEC旺诠RTT021780FTH厚膜贴片电阻产品概述

RTT021780FTH是台湾RALEC(旺诠)推出的一款小功率高精度厚膜贴片电阻,针对高密度电路设计需求,兼顾性能稳定性与成本优势,广泛适配消费电子、工业控制、汽车电子等领域。以下从产品定位、参数性能、工艺封装、应用场景等维度展开详细说明。

一、产品基本信息与命名逻辑

  1. 品牌与定位:RALEC旺诠是深耕电阻领域30余年的老牌制造商,以厚膜电阻技术为核心,产品覆盖消费电子、工业、汽车等多场景;RTT021780FTH属于其中精度小功率厚膜系列,主打“小体积+宽温适配”。
  2. 命名解析:
    • RTT:旺诠厚膜贴片电阻系列代号;
    • 02:封装规格(对应0402英寸/2012公制,尺寸2.0mm×1.2mm);
    • 1780:阻值标识(前三位178为有效数字,第四位0为倍率10⁰,即178Ω);
    • FTH:精度+封装组合标识(明确±1%精度与贴片封装特性)。

二、核心性能参数深度解析

该电阻的参数设计精准匹配0402封装的应用边界,关键参数的实际意义如下:

  1. 阻值与精度:178Ω ±1%
    精度满足多数电路对阻值偏差的要求(如信号放大的偏置电阻、分压电路),避免因阻值偏差导致信号失真或功率损耗异常;178Ω为非标准阻值,可适配定制化电路设计。
  2. 功率规格:62.5mW(1/16W)
    与0402封装的功率容量完全匹配,额定功率下连续工作无过热风险;计算额定电流约18.7mA(I=√(P/R)),电压约3.3V,远低于额定电压。
  3. 工作电压:50V
    为0402封装的最大额定电压,电压余量充足(额定工作电压仅3.3V),可应对电路瞬时浪涌(如电源开机冲击)。
  4. 温度系数:±100ppm/℃
    厚膜电阻的典型温度系数,意味着温度每变化10℃,阻值变化仅0.0178Ω,能在宽温环境下保持阻值稳定。
  5. 工作温度范围:-55℃~+155℃
    覆盖汽车级(AEC-Q200)与工业级宽温要求,可适应极端场景(如车载发动机舱、户外低温传感器)。

三、封装与工艺优势

  1. 0402小体积封装:
    尺寸仅2.0mm×1.2mm×0.5mm,适合高密度PCB设计(如智能手机主板、小型通信模块),有效节省电路板空间,适配设备轻薄化趋势。
  2. 厚膜工艺平衡成本与性能:
    采用“丝网印刷电阻浆料+陶瓷基板高温烧结”工艺,相比薄膜电阻成本降低30%以上,相比碳膜电阻精度提升2倍、稳定性更好,适合大规模量产。
  3. 贴片式自动化适配:
    无引脚贴片结构兼容SMT自动化贴装设备,贴装效率达每小时数万片,适合电子制造企业的批量生产需求。

四、典型应用场景

结合参数特性,该电阻的核心应用场景包括:

  1. 消费电子:智能手机/平板的电源管理电路(电池充放电控制、DC-DC反馈电阻)、耳机音频电路(信号分压);
  2. 工业控制:传感器信号调理(温度/压力传感器的偏置电阻)、PLC输入输出模块(逻辑电路匹配);
  3. 汽车电子:车载小模块(仪表盘背光控制、车门传感器电路)、车载USB充电电路(过流保护电阻);
  4. 通信设备:小型基站射频辅助电路(滤波器匹配、天线驻波比调整)、无线路由器电源电路。

五、品牌与可靠性保障

  1. 环保与认证:产品通过RoHS 2.0、REACH等全球环保认证,无铅无镉,符合欧盟市场准入要求;
  2. 可靠性测试:经过高低温循环(-55℃~+155℃循环1000次)、湿热老化(85℃/85%RH 1000h)、振动冲击(10G/2000Hz)等测试,确保恶劣环境下长期稳定;
  3. 供货稳定性:旺诠拥有年产数十亿只电阻的生产线,该型号支持批量采购,交期稳定(常规7-15天)。

总结

RTT021780FTH以“小体积、高精度、宽温适配”为核心优势,兼顾成本与可靠性,是消费电子、工业控制、汽车电子等领域的高性价比电阻选择,能有效提升电路设计的灵活性与长期稳定性。

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