WMSIC Electronic Components

RALEC RTT05122JTP

ModelRTT05122JTP
Package0805
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 RTT05122JTP
Type
RALEC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT05122JTP
Electronic Component
1
Package
0805
Electronic Component
0.027g
Electronic Component
1
Electronic Component
BM0265746243
Electronic Component
Electronic Component
Electronic Component
5000

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

RTT05122JTP 贴片厚膜电阻产品概述

一、产品核心定位与品牌背景

RTT05122JTP是台湾知名电子元器件厂商RALEC(旺诠) 推出的一款常规功率型贴片厚膜电阻,属于其主流基础电阻产品线。该产品针对电子电路中限流、分压、信号匹配等通用需求设计,以高性价比、宽温稳定性为核心特点,适配消费电子、工业控制等多领域的规模化应用场景。

二、关键技术参数解析

该产品的核心参数直接决定了其应用边界,具体解析如下:

2.1 阻值与精度

标称阻值为1.2kΩ(1200Ω),精度等级为**±5%**,属于厚膜电阻的常规精度范畴。该精度可满足大多数对阻值误差要求不苛刻的电路(如普通电源滤波、信号分压网络),同时平衡了成本与性能。

2.2 功率与电压限制

  • 额定功率:125mW(即1/8W),是电阻可长期持续承受的最大功耗(需注意:瞬时过载功率需参考厂商 datasheet,通常不超过额定功率的2倍);
  • 额定工作电压:150V,为电阻两端可施加的最大直流/交流电压。实际使用时需同时满足两个限制:① 工作电压≤150V;② 工作功率≤125mW(换算为最大工作电流≈10.2mA,由公式 ( I = \sqrt{P/R} ) 推导)。

2.3 温度特性

  • 温度系数(TCR):±100ppm/℃,表示温度每变化1℃,阻值变化±100×10⁻⁶。例如,当环境温度从25℃升至125℃(变化100℃),阻值最大变化±12Ω,满足一般环境下的性能稳定需求;
  • 工作温度范围:-55℃~+155℃,覆盖工业级宽温要求,可在极端气候(如寒冷地区、高温车间)或车载环境(部分场景)中稳定工作。

三、封装与物理特性

RTT05122JTP采用0805封装(英制:0.08英寸×0.05英寸,公制:2.0mm×1.25mm),是贴片电阻的经典通用封装,具备以下特点:

  1. 体积紧凑:适配高密度PCB设计,可有效节省电路板空间,适合小型化电子设备(如智能手机、可穿戴设备);
  2. 工艺兼容性:支持标准SMT生产线(回流焊、波峰焊),焊接可靠性高;端电极采用镍/锡镀层,无铅环保(符合RoHS 2.0标准);
  3. 机械强度:厚膜工艺结合贴片结构,抗振动、抗冲击性能优于插件电阻,适合移动设备或工业振动环境。

四、性能优势与典型应用场景

4.1 核心优势

  • 成本效益突出:常规精度+常规功率的组合,适合大规模量产,性价比优于高精度薄膜电阻;
  • 宽温稳定性:-55℃~+155℃的工作范围,覆盖工业级与部分汽车级需求;
  • 可靠性成熟:旺诠的厚膜制造工艺(丝网印刷+烧结)保证了电阻的抗过载、抗潮湿能力,长期阻值漂移小;
  • 集成度高:0805封装适配绝大多数PCB布局,易与其他贴片元件集成。

4.2 典型应用

  1. 消费电子:手机、平板、电视的电源滤波电路、信号分压网络、LED驱动限流;
  2. 工业控制:PLC模块、传感器接口电路、电机控制辅助电路;
  3. 通信设备:小型基站、路由器的电源管理电路、信号匹配电阻;
  4. 汽车电子:车载中控、仪表的辅助电路(需确认具体场景温度是否符合-55~155℃要求)。

五、可靠性与环境适应性

RTT05122JTP经过多项可靠性测试,符合工业级电子元件标准:

  • 抗湿性:表面覆盖耐湿保护层,通过湿热测试(如40℃/95%RH环境下1000小时),阻值变化率≤1%;
  • 抗振动:符合IPC-9701振动测试标准,在10~2000Hz振动频率下无开路/短路故障;
  • 长期稳定性:老化测试后阻值漂移≤0.5%/1000小时,满足长期使用需求;
  • 环保合规:无铅、无镉、无溴,符合欧盟RoHS 2.0及REACH法规。

总结

RTT05122JTP是一款RALEC旺诠出品的高性价比0805封装贴片厚膜电阻,以常规精度、宽温范围、稳定可靠性为核心竞争力,广泛适用于消费电子、工业控制等多领域的基础电路设计。其成熟的工艺与成本优势,使其成为电子工程师在限流、分压等通用场景中的优先选择之一。

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