WMSIC Electronic Components

FH RC-02K2871FT

ModelRC-02K2871FT
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
FH RC-02K2871FT
Type
FH
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
FH
Electronic Component
RC-02K2871FT
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.022g
Electronic Component
2.87kΩ
Electronic Component
50
Electronic Component
BM0259364583
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-02K2871FT 产品概述

一、产品简介

RC-02K2871FT 为 FH(风华) 出品的贴片厚膜电阻,封装为 0402(国际标准小型贴片封装),标称阻值 2.87kΩ,阻值精度 ±1%,额定功率 1/16W(62.5mW),最高工作电压 50V,温度系数(TCR)±100ppm/℃,工作温度范围 -55℃ ~ +155℃。该款电阻适用于对体积、精度和可靠性有要求的小型电子产品,如便携设备、消费电子、仪表等。

二、主要技术参数

  • 阻值:2.87kΩ
  • 精度:±1%
  • 类型:厚膜电阻(贴片)
  • 封装:0402
  • 额定功率:62.5mW(1/16W)
  • 工作电压:50V(最大)
  • 温度系数:±100ppm/℃(典型)
  • 工作温度:-55℃ 至 +155℃
  • 品牌:FH(风华)
  • 型号:RC-02K2871FT

三、产品特点

  • 体积小、重量轻:0402 小封装适合空间受限的高密度 PCB 设计。
  • 精度高:±1% 精度满足常见模拟与数字电路对阻值稳定性的要求。
  • 温漂可控:±100ppm/℃ 的 TCR 在一般温度变化条件下能保持较好的阻值稳定性。
  • 宽温度范围:-55℃ ~ +155℃,适应工业级及高温环境应用需求。
  • 制造工艺成熟:厚膜工艺具有良好的成本效益和批量一致性,适合大批量生产。

四、典型应用场景

  • 手持设备与可穿戴设备中的信号分压、电流取样与阻抗匹配。
  • 消费电子如手机、平板、蓝牙模块的外围网络。
  • 工业控制与仪表中的低功率电路、滤波与偏置网络。
  • 通信设备、传感器前端及模拟电路中的通用阻值需求。

五、PCB 设计与布局建议

  • 焊盘与过孔:推荐按照风华官方封装图选择焊盘尺寸,保证良好焊接与热扩散。0402 封装对焊盘设计较敏感,过宽或过窄都会影响焊点可靠性。
  • 布局注意热源:尽量避免将电阻放置在功率器件热源直接下方,以减少因热累积导致的温升。
  • 串联/并联布置:若需要更高精度或更大功率,可采用多片并联或串联方式实现,并留意匹配与热均衡。
  • 电气间距:根据 50V 最大工作电压,保证与其他导体间的安全间距,避免爬电或击穿隐患。

六、焊接与可靠性

  • 焊接工艺:推荐采用无铅回流工艺,遵循通用的无铅回流曲线(峰值温度通常不超过 260℃,并控制在厂商建议的时间范围内)。建议在量产前进行焊接工艺验证(POK/FT)。
  • 清洗与处理:回流后可按常规 PCB 清洗工艺处理,注意避免使用对厚膜材料有腐蚀性的清洗剂。
  • 耐久与可靠性测试:在高低温循环、湿热、机械冲击与振动等环境下表现稳定,实际使用中建议参考风华提供的产品可靠性报告与标准测试条件。
  • 功率降额:在高环境温度下需按厂方功率-温度降额曲线进行设计,避免长期在额定功率及高温同时工况下运行导致寿命缩短。

七、选型与采购提示

  • 阻值与精度:如需更高精度或更小温漂,可考虑薄膜或金属膜类电阻替代;若需更高功率,可选更大封装(如 0603、0805)或并联方案。
  • 样品验证:在批量采购前,建议先通过样品在目标电路中验证电气特性与焊接兼容性。
  • 库存与批次:大批量采购时注意与供应商确认生产批次与标称一致性,获取最新数据手册与可靠性报告。
  • 替代型号:若无法满足功率或尺寸要求,可与供应商沟通推荐的替代封装或不同温漂等级产品。

如需详细封装尺寸、回流曲线或风华官方数据手册,我可以协助查找并提供具体图纸与推荐的 PCB 焊盘尺寸。

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