WMSIC Electronic Components

FH RC-01W24R9FT

ModelRC-01W24R9FT
Package0201
BrandFH
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
FH RC-01W24R9FT
Type
FH
Minimum package
15000 圆盘

Technical parameters

Power
50mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-01W24R9FT
Electronic Component
1
Package
0201
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.008g
Electronic Component
24.9Ω
Electronic Component
10
Electronic Component
BM0265134563
Operating Temperature
55℃~+125℃
Operating Voltage
25V
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.

风华RC-01W24R9FT厚膜贴片电阻产品概述

一、产品基本信息

RC-01W24R9FT是风华高科(FH) 推出的一款厚膜贴片电阻,型号命名遵循行业通用规则:

  • RC:风华厚膜电阻系列标识;
  • 01W:额定功率50mW(0.01W为标称功率,实际额定功率对应50mW);
  • 24R9:阻值24.9Ω(“R”替代小数点,避免混淆);
  • FT:精度±1%、温度系数±200ppm/℃的性能标识。

该产品采用0201封装(英制尺寸:0.02×0.01英寸;公制尺寸:0.508×0.254mm),是目前小体积贴片电阻的主流封装之一,适配高密度PCB设计需求。

二、核心性能参数解析

1. 阻值与精度

标称阻值24.9Ω为E96系列标准阻值(精度±1%对应E96系列),实际阻值范围为24.651Ω~25.149Ω,满足大多数工业级电路的精准度要求(如信号采样、分压网络等场景)。

2. 功率与电压能力

  • 额定功率50mW:对应0201封装的典型功率等级,在环境温度≤70℃时可长期稳定工作;若环境温度升高,需按风华提供的功率降额曲线(每升高1℃降额0.33mW)调整使用条件。
  • 最大工作电压25V:指直流或交流峰值电压的最大允许值,与功率无直接关联(即使电压未达25V,若功率超过50mW仍会损坏电阻)。

3. 温度系数(TCR)

温度系数±200ppm/℃,即每变化1℃,阻值变化量为:
[ 24.9Ω \times 200 \times 10^{-6} = ±4.98mΩ ]
在-55℃~+125℃的宽温范围内,最大阻值变化量为:
[ ±4.98mΩ/℃ \times 180℃ = ±0.896Ω ]
可满足工业、汽车辅助电路等温变场景的稳定性需求。

三、封装与工艺特点

1. 0201封装优势

  • 体积小:比0402封装体积缩小约75%,适合智能手机、智能穿戴、物联网终端等小型化设备;
  • 焊接兼容性:适配回流焊、波峰焊工艺,焊点可靠性符合IPC-A-610标准;
  • 散热能力:陶瓷基板+厚膜电阻层的结构,散热效率优于薄膜电阻(部分场景),适合低功耗连续工作。

2. 厚膜工艺特性

风华采用高温烧结厚膜工艺:在96%氧化铝陶瓷基板上印刷钌基电阻浆料,经850℃~950℃高温烧结形成电阻层,再通过激光调阻实现精度控制。该工艺的优势为:

  • 成本低于薄膜电阻,性价比高;
  • 耐过载能力强(短期过载可达额定功率的2倍);
  • 长期稳定性好(负载寿命测试1000小时@70℃,阻值变化≤0.5%)。

四、典型应用场景

RC-01W24R9FT因体积小、精度适中、温区宽,广泛应用于以下场景:

  1. 消费电子:智能手机/蓝牙耳机的信号调理电路(如射频匹配、音频分压)、智能手表的传感器接口;
  2. 小型电源:DC-DC转换器的电流采样电阻(低功耗场景)、线性稳压器的输出分压;
  3. 工业控制:PLC模块的输入/输出接口电阻、传感器信号放大电路的负载电阻;
  4. 汽车电子:车载中控的低功耗辅助电路(如按键背光分压)、胎压监测系统(TPMS)的信号滤波;
  5. 物联网终端:低功耗蓝牙(BLE)模块的阻抗匹配、环境传感器的偏置电路。

五、可靠性与环境适应性

1. 温区覆盖

工作温度范围-55℃+125℃,符合工业级温区标准(-40℃+85℃为常规工业级,该产品扩展至-55℃/125℃,可覆盖部分汽车级低温场景)。

2. 可靠性测试

风华对该产品进行了多项可靠性验证:

  • 高温存储:125℃×1000小时,阻值变化≤0.5%;
  • 温度循环:-55℃~+125℃×500次,阻值变化≤0.3%;
  • 耐湿性:85℃/85%RH×1000小时,阻值变化≤1%;
  • 振动测试:10Hz~2000Hz×2小时,无开路/短路故障。

3. 环保合规

符合RoHS 2.0(无铅)、REACH法规要求,可用于出口产品。

六、选型与替换参考

1. 同参数替换

若需替换,需保证封装、功率、阻值、精度、TCR一致,常见替代型号:

  • 国巨:RC0201FR-0724R9L;
  • 三星:CL05K24R9JB5NC;
  • 厚声:0201W24R9FT。

2. 升级选型

  • 若需更高精度(±0.5%):可选风华RC-01W24R9F2;
  • 若需更大功率(1/8W=125mW):可选0402封装的风华RC-03W24R9FT;
  • 若需更低TCR(±100ppm/℃):可选风华薄膜电阻系列(如FR-01W24R9FT)。

七、采购与应用注意事项

  1. 焊接温度:回流焊峰值温度建议≤245℃(持续时间≤10秒),避免高温损坏电阻层;
  2. 功率降额:环境温度超过70℃时,需按风华提供的降额表调整使用功率(如100℃时降额至33mW);
  3. 静电防护:0201封装电阻易受静电损坏,需使用防静电包装和操作工具。

综上,RC-01W24R9FT是一款高性价比、小体积、宽温稳定的厚膜贴片电阻,适合大多数中低端工业与消费电子场景,是风华高科厚膜电阻系列的经典型号之一。

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