WMSIC Electronic Components

RALEC RTT023000FTH

ModelRTT023000FTH
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

19 specifications

Core information

Product name
RALEC RTT023000FTH
Type
RALEC
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
RALEC
Electronic Component
RTT023000FTH
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.009g
Electronic Component
300Ω
Electronic Component
50
Electronic Component
BM0265320214
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 RTT023000FTH 厚膜贴片电阻产品概述

一、产品定位与核心参数概览

RTT023000FTH是旺诠(RALEC)推出的小功率厚膜贴片电阻,针对便携式电子、工业控制等需要紧凑封装、中等精度的电路场景设计。其核心参数明确,可满足多场景基础电阻需求,具体参数如下:

  • 电阻类型:厚膜电阻(陶瓷基片+厚膜浆料工艺)
  • 标称阻值:300Ω
  • 阻值精度:±1%(室温25℃下实际阻值范围297Ω~303Ω)
  • 额定功率:62.5mW(0.0625W,25℃连续耗散功率上限)
  • 最大工作电压:50V(直流/交流峰值电压上限)
  • 温度系数(TCR):±100ppm/℃
  • 工作温度范围:-55℃ ~ +155℃
  • 封装形式:0402(英制代码,对应公制1005,尺寸1.0mm×0.5mm×0.45mm)

二、封装与物理特性

该电阻采用标准0402贴片封装,符合IPC-J-STD-001贴片焊接规范,适配回流焊、激光焊等自动化SMT工艺,可直接集成于高密度PCB板(如智能手机、智能手表的主板)。其物理特性包括:

  • 尺寸:长1.0mm、宽0.5mm、高度0.45mm(±0.05mm)
  • 重量:约0.01g(轻量化设计,适配便携式设备)
  • 端电极:镍/锡镀层(无铅,符合RoHS 2.0),焊接附着力强,耐多次回流焊(≥3次)

三、电气性能详解

3.1 阻值精度与稳定性

±1%的精度属于中等精度电阻,可满足多数模拟电路的信号调理需求(如传感器输出放大、电源分压反馈)。在-55℃~+155℃宽温范围内,因TCR±100ppm/℃导致的阻值变化为:每1℃变化0.03Ω,100℃温差下变化仅3Ω,仍保持在±1%精度区间内,稳定性优于普通碳膜电阻。

3.2 功率与电压降额

  • 额定功率62.5mW:25℃环境下可连续工作;环境温度升高时需按降额曲线使用(125℃时降额至50%,即31.25mW;155℃时降额至25%,即15.625mW)。
  • 最大工作电压50V:直流或交流峰值电压上限,若电路电压超过该值,需串联保护元件,避免电阻击穿。

3.3 抗脉冲能力

厚膜电阻工艺赋予其一定抗脉冲能力(典型脉冲功率为额定功率的10~20倍,持续时间≤1ms),可应对电路瞬间过流(如LED驱动的启动脉冲),无需额外并联保护电阻。

四、环境适应性与可靠性

RTT023000FTH通过多项可靠性测试,满足极端环境需求:

  • 温湿度耐受:85℃/85%RH湿热环境下工作1000小时,阻值漂移≤0.5%;
  • 机械可靠性:通过振动(10~2000Hz,2g加速度)、冲击(1000g,1ms)测试,适配运输或振动场景(如车载设备);
  • 耐腐蚀性:符合盐雾测试(5%NaCl溶液,48小时),端电极无氧化,阻值无明显变化。

五、典型应用场景

结合参数特性,该电阻适用于以下场景:

  1. 便携式电子:智能手机电源管理模块(电池分压、充电限流)、智能手表音频电路(信号匹配);
  2. 工业控制:PLC I/O接口电路(信号分压)、温度传感器调理电路(如PT100的分压参考);
  3. 消费电子配件:蓝牙耳机充电电路(过流保护限流)、移动电源LED指示灯驱动;
  4. 汽车辅助电路:车载显示屏背光驱动(需确认AEC-Q200认证,旺诠部分0402电阻已通过)。

六、品牌与选型建议

旺诠(RALEC)是全球被动元器件头部厂商,专注电阻研发30余年,其厚膜电阻以一致性好、稳定性高著称,广泛应用于华为、小米、博世等客户的量产产品。

选型补充建议:

  • 若需更高精度(±0.1%),可选旺诠薄膜电阻系列(如RTT03);
  • 若需更大功率(0.125W),可考虑0603封装的同阻值电阻(如RTT043000FTH);
  • 汽车级应用需确认型号是否通过AEC-Q200认证(可查阅旺诠官方datasheet)。

该产品以紧凑封装、宽温稳定性和中等精度,成为小信号电路的高性价比选择,适配多数量产电子设备的基础电阻需求。

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