WMSIC Electronic Components

RALEC RTT121R00FTP

ModelRTT121R00FTP
Package1210
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

19 specifications

Core information

Product name
RALEC RTT121R00FTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Power
500mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT121R00FTP
Electronic Component
1
Package
1210
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.034g
Electronic Component
1Ω
Electronic Component
1
Electronic Component
BM0265147829
Operating Temperature
55℃~+155℃
Operating Voltage
200V
Electronic Component
±200ppm/℃
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旺诠RTT121R00FTP贴片厚膜电阻产品概述

RTT121R00FTP是台湾旺诠(RALEC)推出的一款1210封装贴片厚膜电阻,针对中小功率电路的精准控制与宽温应用需求设计,兼具成本优势与性能稳定性,广泛适配工业控制、消费电子等领域。

一、产品基本信息

RTT121R00FTP属于贴片厚膜固定电阻,由RALEC旺诠采用成熟厚膜工艺制造,封装规格为国际通用的1210(英制尺寸:3.2mm×2.5mm,公制等效1206),可兼容常规SMT贴装生产线,支持高速自动化生产。产品定位为通用型功率电阻,核心参数覆盖低阻、中精度、宽温范围,满足多数电路的基本功能需求。

二、核心参数深度解析

RTT121R00FTP的核心参数针对实际应用场景做了针对性设计,关键参数如下:

  1. 阻值与精度:固定阻值1Ω,精度±1%——优于常规5%/10%精度的通用电阻,可满足电流采样、分压电路等对阻值一致性要求较高的场景;
  2. 功率承载:额定功率500mW(1/2W)——1210封装的常规功率上限,适配中小功率电路的限流、负载等需求;需注意低阻电阻的电压限制:实际使用中需遵循功率公式P=V²/R,若误将200V额定电压直接施加于1Ω电阻,理论功率达40000W(远超额定),因此需结合电路实际功率降额使用;
  3. 温度特性:温度系数±200ppm/℃,工作温度范围-55℃~+155℃——温漂处于厚膜电阻的常规区间,宽温范围覆盖工业级环境(如户外设备、车载辅助电路等),可应对极端温度变化;
  4. 额定电压:200V——为电阻的绝缘耐压上限,在功率未超额定的前提下,可安全工作于200V以内的电路。

三、封装与工艺优势

RTT121R00FTP采用厚膜工艺制造,相比薄膜电阻具有明显成本优势,同时功率承载能力更强,适配1/2W的功率需求:

  • 厚膜工艺通过丝网印刷电阻浆料、高温烧结等步骤形成电阻层,电阻值一致性可控,且耐温性优于薄膜电阻;
  • 1210封装尺寸紧凑,可有效节省PCB板空间,适合高密度贴装的电路设计;
  • 封装结构采用陶瓷基片+金属电极,具备良好的导热性与机械稳定性,可降低工作时的热应力。

四、典型应用场景

结合参数特性,RTT121R00FTP适用于以下场景:

  1. 电源电路:作为电流采样电阻(小电流场景下,1Ω低阻可实现精准电流-电压转换)、充电器/适配器的限流保护电阻;
  2. 工业控制:PLC模块、传感器接口电路的分压/限流电阻,适配-55℃~+155℃的工业环境;
  3. 消费电子:LED驱动电路的负载电阻、音频电路的匹配电阻;
  4. 汽车电子(辅助场景):车载小功率辅助电路(如仪表盘背光、传感器接口)的电阻元件,满足宽温需求。

五、可靠性与使用注意事项

RTT121R00FTP的可靠性设计可满足长期使用需求:

  • 功率降额:高温环境下需降额使用(如125℃时额定功率降额至250mW,155℃时降额至100mW),避免过热损坏;
  • 耐候性:陶瓷基片与厚膜电阻层具备良好的防潮、防腐蚀能力,可适应湿度变化较大的环境;
  • 长期稳定性:厚膜电阻的长期阻值漂移通常小于0.5%/1000小时,适合长期运行的设备。

综上,RTT121R00FTP凭借1210封装的紧凑性、±1%精度的通用性、宽温范围的适应性,成为工业控制、消费电子等领域中小功率电路的高性价比选择,同时旺诠(RALEC)的品牌质量保障也提升了产品的可靠性。

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