WMSIC Electronic Components

TA-I Technology RMF04JT101

ModelRMF04JT101
Package0402
BrandElectronic Component
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RMF04JT101
Type
TA-I Technology
Minimum package
10000 圆盘

Technical parameters

Power
62.5mW
Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
RMF04JT101
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.019g
Electronic Component
100Ω
Electronic Component
50
Electronic Component
BM0265427454
Operating Voltage
50V
Electronic Component
±200ppm/℃
Resistor Type
Resistor
Electronic Component
Electronic Component

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

RMF04JT101厚膜片式电阻产品概述

一、产品定位与品牌基础

RMF04JT101是台湾大毅科技(Taiwanese Resistance Co.,简称TRC)推出的通用型厚膜片式电阻,属于其“RM”系列常规产品。大毅科技作为全球被动元件领域的专业厂商,自1986年成立以来专注于片式电阻、电容的研发与生产,产品覆盖消费电子、工业控制、汽车电子等多领域,以“高性价比+稳定可靠性”为核心优势。

RMF04JT101定位为小封装、低功率、通用精度的基础被动元件,适配各类电子设备的常规电阻需求,尤其适合高密度PCB设计场景(如可穿戴设备、物联网节点)。

二、核心电气性能参数解析

RMF04JT101的参数围绕“通用场景优化”设计,关键指标如下:

1. 电阻类型与工艺

采用厚膜印刷工艺:在氧化铝陶瓷基片上印刷电阻浆料(钌系氧化物为主),经高温烧结、电极制备而成。相比薄膜电阻,厚膜工艺成本更低、阻值范围宽;相比线绕电阻,体积更小、适合表面贴装,兼顾“性能稳定”与“批量成本”。

2. 阻值与精度

  • 标称阻值:100Ω
  • 精度:±5%(实际阻值范围95Ω~105Ω)
    满足非精密电路(分压、限流、偏置等)需求,无需额外校准。

3. 功率与电压限制

  • 额定功率:62.5mW(0.0625W),为0402封装常规功率等级;
  • 额定电压:50V,但需结合功率共同限制:
    实际最大安全电压需满足「(U^2 \leq P_{额定} \times R_{标称})」,即(U \leq \sqrt{0.0625 \times 100} = 2.5V)。
    因此实际使用需以“电压≤50V 且 功率≤62.5mW”两者最小值为准,避免过压/过功率损坏。

4. 温度系数(TCR)

±200ppm/℃:温度每变化1℃,阻值变化±0.02%。例如:

  • 25℃(基准):100Ω;
  • 100℃(高温):阻值变化((100-25) \times 200e-6 \times 100 = 1.5Ω),范围98.5Ω~101.5Ω,满足常规温度波动下的稳定性。

三、封装尺寸与物理特性

RMF04JT101采用0402封装(英制代码,对应公制1005),具体参数:

  • 长度:1.0mm(±0.1mm)
  • 宽度:0.5mm(±0.1mm)
  • 厚度:0.4mm(±0.05mm)
  • 端电极:三层结构(镍层+锡层),符合RoHS 2.0无铅标准,焊点强度符合IPC-A-610标准。

小尺寸设计适配高密度PCB布局,适合智能手机、可穿戴设备等对空间要求严格的产品。

四、典型应用场景

基于参数特性,RMF04JT101适用于以下场景:

1. 消费电子

  • 智能手机/平板:LED指示灯限流、按键电路分压、音频模块偏置;
  • 可穿戴设备:手环/手表的传感器信号调理、低功耗蓝牙模块匹配。

2. 物联网设备

  • 传感器节点:温湿度/运动传感器的偏置电阻、信号滤波;
  • 低功耗网关:无线模块的阻抗匹配、电源辅助限流。

3. 小型电源

  • DC-DC转换:反馈电阻、输出分压;
  • 线性稳压器:输出纹波滤波、负载限流。

4. 汽车电子(辅助电路)

  • 车载中控:按键电路分压、氛围灯限流;
  • 小型传感器:胎压监测模块的信号调理(非安全关键件)。

五、可靠性与环境适应性

大毅科技对RMF04JT101通过严格可靠性测试,符合IEC 61000、JIS C 5102标准:

  • 高温存储:125℃/1000h,阻值变化≤±1%;
  • 温度循环:-55℃~125℃/1000次,阻值变化≤±1%;
  • 湿度测试:60℃/90%RH/1000h,阻值变化≤±2%;
  • 焊接可靠性:回流焊260℃峰值10秒,焊点无开裂、阻值无漂移。

工作温度范围:-55℃~125℃,覆盖大部分电子设备的环境要求。

六、选型与使用注意事项

  1. 功率降额:实际功率建议≤额定值的80%(50mW),避免长期过热导致阻值漂移;
  2. 电压限制:需同时满足“电压≤2.5V(功率约束)”与“≤50V(额定电压)”,高电压场景需并联/串联电阻;
  3. 焊接工艺:优先回流焊(避免手工焊过热),焊接温度符合IPC标准(峰值260℃≤10秒);
  4. 存储防护:未焊接器件存储于25℃/60%RH以下环境,避免受潮;
  5. ESD防护:虽抗静电能力较强,仍需使用防静电包装与工具操作。

RMF04JT101以“通用型”为核心,平衡了性能、成本与可靠性,是小功率电子设备中电阻器的高性价比选择。

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