WMSIC Electronic Components

FH RC-02K682JT

ModelRC-02K682JT
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-02K682JT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K682JT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.022g
Electronic Component
6.8kΩ
Electronic Component
50
Electronic Component
BM0263677098
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.

RC-02K682JT 厚膜贴片电阻产品概述

RC-02K682JT是风华高科(FH品牌)推出的一款小体积通用型厚膜贴片电阻,针对高密度电子设备的小型化设计需求,兼顾成本与性能稳定性,广泛适配消费电子、智能穿戴等领域的电路应用。

一、产品基本定位与命名解析

RC-02K682JT属于风华厚膜贴片电阻系列中的常规精度产品,命名规则可对应核心参数:

  • RC:风华厚膜贴片电阻的系列标识;
  • 02:对应英制封装尺寸0402(公制1005,即长1.0mm、宽0.5mm);
  • 682:阻值代码,代表68×10²Ω=6.8kΩ;
  • JT:关联精度(±5%)与功率(62.5mW)等关键参数。

该产品定位为通用型小功率厚膜贴片电阻,适合大多数对阻值精度要求不苛刻的电路场景,如信号分压、滤波、简单放大等。

二、核心性能参数详解

RC-02K682JT的性能参数围绕小体积、宽温稳定设计,关键指标如下:

1. 阻值与精度

阻值标称6.8kΩ,精度等级±5%,实际阻值范围为6.46kΩ~7.14kΩ,可覆盖常规电路的匹配需求(如音频滤波、电池电量检测等)。

2. 功率与电压限制

  • 额定功率:62.5mW(0.0625W),为25℃环境下的最大允许功耗;
  • 最大工作电压:50V,使用时需同时满足功耗≤62.5mW和电压≤50V(例如:当电压为50V时,需确保负载电阻≥40kΩ,避免该电阻过载)。

3. 温度特性

  • 温度系数(TCR):±100ppm/℃,即温度每变化1℃,阻值变化±0.01%;
  • 工作温度范围:-55℃+155℃,覆盖工业级环境(-40℃+85℃)及部分高温场景,保证宽温下的阻值稳定性。

三、封装与物理特性

RC-02K682JT采用0402封装(英制:0.04″×0.02″;公制:1.0mm×0.5mm),是贴片电阻中体积最小的常规封装之一,具备以下特点:

  • 厚膜结构:以陶瓷基片为载体,通过丝网印刷厚膜电阻浆料、烧结电极制成,抗过载能力优于薄膜电阻;
  • 小体积轻量化:体积仅约0.5mm³,重量不足0.1g,适合高密度PCB设计(如智能手机主板、智能手环模块);
  • 焊接兼容性:支持回流焊、波峰焊(需控制焊接温度),符合SMT自动化生产要求。

四、典型应用场景

结合参数特性,RC-02K682JT主要适用于以下场景:

1. 消费电子终端

  • 智能手机、平板电脑的信号调理电路(如音频滤波、射频分压);
  • 便携式音箱、耳机的电源分压电路(如电池电量检测)。

2. 智能穿戴设备

  • 智能手表、手环的传感器前端电路(如心率传感器信号放大);
  • 蓝牙低功耗(BLE)模块的偏置电阻(如发射功率控制)。

3. 小型工业与物联网设备

  • 小型PLC的输入输出接口电阻(如光耦限流);
  • IoT节点的低功耗电路(如传感器供电分压)。

4. 汽车辅助电路(部分场景)

因宽温范围(-55℃~+155℃),可用于车载非安全关键电路(如仪表盘背光控制、车内传感器信号处理)。

五、品牌与可靠性保障

RC-02K682JT由风华高科(FH品牌) 生产,风华高科是国内电子元器件龙头企业,厚膜电阻生产工艺成熟,产品具备以下可靠性优势:

  • 环保合规:符合RoHS 2.0、REACH等环保标准,无铅焊接兼容;
  • 可靠性测试:通过温度循环(-55℃~+155℃,500次)、湿度测试(85℃/85%RH,1000h)、焊接可靠性(回流焊3次)等,保证长期使用稳定性;
  • 批量一致性:自动化生产确保批量产品阻值偏差、温度系数一致性好,适合大规模量产。

六、使用注意事项

为确保产品性能,使用时需注意以下要点:

  1. 功耗控制:实际电路中,该电阻的功耗需≤62.5mW,最大允许电流≈3.03mA(I=√(P/R)=√(0.0625W/6800Ω));
  2. 焊接工艺:0402封装建议采用回流焊,焊接温度峰值不超过260℃(回流时间≤10s),避免过热导致阻值漂移;
  3. 存储条件:存储于常温(15℃~35℃)、干燥(湿度≤60%RH)环境,开封后12个月内使用,避免受潮影响焊接性能;
  4. 电路设计:避免置于高温热源附近(如功率器件旁),确保工作温度不超过155℃。

综上,RC-02K682JT是一款性价比高、体积小、宽温稳定的厚膜贴片电阻,可满足多数小型化电子设备的常规电路需求,是设计工程师选型时的可靠选择。

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