WMSIC Electronic Components

FH RC-02K9092FT

ModelRC-02K9092FT
Package0402
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-02K9092FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K9092FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
90.9kΩ
Electronic Component
10
Electronic Component
BM0228727295
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.

FH RC-02K9092FT 厚膜贴片电阻产品概述

一、产品定位与核心参数总览

FH RC-02K9092FT是风华电子(FH)推出的0402封装厚膜贴片电阻,针对中高精度、小功率、高密度PCB设计场景优化,兼具成本优势与稳定性。其核心参数围绕“高精度+小封装+宽温适配”设计,可满足消费电子、工业控制等多领域的基础精密应用需求。

从型号命名可直观解读关键信息:

  • RC:代表厚膜电阻工艺;
  • 02:对应英制0402封装(公制1005,尺寸1.0mm×0.5mm);
  • K:精度等级标识(±1%);
  • 9092:阻值编码(909×10²Ω=90.9kΩ);
  • FT:系列标识(适配小功率场景)。

核心参数总览:

参数项 规格值 电阻类型 厚膜贴片电阻 标称阻值 90.9kΩ 精度 ±1% 额定功率 62.5mW 工作电压(额定) 50V(降额后) 温度系数(TCR) ±100ppm/℃ 工作温度范围 -55℃~+155℃ 封装 0402(1005)

二、关键性能指标深度解析

1. 阻值与精度:基础精密场景适配

90.9kΩ为标准高精度阻值,避免非标准值的配对困难;±1%精度(比常规±5%碳膜电阻高2倍),可覆盖信号调理、分压网络、传感器接口等对阻值一致性要求较高的场景。例如,24V电源分压电路中,该电阻与10kΩ配对可输出约2.4V精准电压,误差控制在0.24V以内。

2. 功率与电压:小功率场景优化

额定功率62.5mW是0402封装厚膜电阻的典型值,结合阻值计算理论额定电压≈75.4V,但产品标注50V工作电压,属于可靠性降额设计(降额约66%),可降低热应力对电阻膜的老化影响。实际应用建议功耗≤37.5mW(降额60%),进一步提升稳定性。

3. 温度系数:中等偏优的温漂控制

±100ppm/℃的TCR表示:温度每变化1℃,阻值变化±0.01%。全温区(-55℃~+155℃)下阻值最大变化±2.1%,叠加±1%精度误差,总误差≤±3.1%,满足工业环境(温度波动±20℃)的基本精度要求。

4. 工作温度:宽温覆盖特殊场景

-55℃+155℃远超常规消费电子(0℃+70℃),接近汽车电子(-40℃~+125℃)标准,可适配户外工业设备、车载小功率模块等高低温环境。

三、封装与工艺特性

1. 0402封装:高密度PCB首选

0402封装(1.0mm×0.5mm)是小型电子设备主流封装,可使PCB布局密度提升30%以上,适合智能手机、可穿戴设备、小型通信模块等空间苛刻的产品。

2. 厚膜工艺:成本与稳定性平衡

厚膜电阻通过丝网印刷+高温烧结工艺在氧化铝陶瓷基片上形成电阻膜,相比薄膜电阻成本降低40%,相比碳膜电阻稳定性提升2倍,且抗硫化性能优于薄膜电阻(适合潮湿环境),是中低端精密应用的性价比之选。

四、典型应用场景

  1. 消费电子:智能手机/平板的信号滤波、背光调节电路;可穿戴设备的心率传感器分压网络;
  2. 工业控制:小型PLC的输入输出模块、温度传感器信号放大电路;
  3. 汽车电子:车载仪表盘背光调节、胎压传感器信号处理(适配-40℃~+85℃车载环境);
  4. 通信设备:小型路由器/交换机的电源滤波、以太网接口信号分压电路。

五、选型与应用注意事项

  1. 功率降额:实际功耗≤额定功率的60%(≤37.5mW),避免高温老化;
  2. 电压限制:工作电压≤50V(产品标注),严禁超过75.4V理论额定值;
  3. 焊接工艺:回流焊温度≤260℃(峰值)、时间≤10秒;手工焊温度≤350℃、时间≤3秒,避免热应力损坏电阻膜;
  4. 温区适配:125℃以上高温环境下,功耗需降至额定的50%以下;
  5. 配对应用:90.9kΩ为标准配对阻值,建议与同精度90.9kΩ电阻配合(如电桥电路),保证匹配度。

六、品牌与可靠性保障

风华电子(FH)是国内厚膜电阻龙头企业,拥有20余年生产经验,RC-02K9092FT符合RoHS 2.0、REACH环保标准,批量一致性误差≤0.5%(优于行业±1%标称精度),可提供长期稳定供货。

总结

FH RC-02K9092FT是一款“高精度+小封装+宽温适配”的高性价比厚膜贴片电阻,覆盖消费电子、工业控制等多领域基础精密应用,是替代进口同规格产品的理想选择。

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