WMSIC Electronic Components

ERJ3EKF2702V

ModelERJ3EKF2702V
Package0603
BrandPANASONIC
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
PANASONIC ERJ3EKF2702V
Type
PANASONIC
Minimum package
5000

Technical parameters

Power
100mW
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF2702V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
27kΩ
Electronic Component
1
Electronic Component
BM0227640625
Operating Temperature
55℃~+155℃
Operating Voltage
75V
Electronic Component
±100ppm/℃
Resistor Type
Resistor
Electronic Component
5000

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

松下ERJ3EKF2702V厚膜贴片电阻产品概述

松下ERJ3EKF2702V是一款专为高密度电子设计打造的0603封装厚膜贴片电阻,属于松下ERJ3E系列通用型电阻产品,以稳定的性能、紧凑的尺寸和宽温适应性,广泛应用于消费电子、工业控制、通信等领域。以下从核心参数、封装特性、应用场景等维度展开详细概述。

一、产品基本定位与核心参数框架

ERJ3EKF2702V定位于工业级通用贴片电阻,核心参数围绕“小尺寸、稳定精度、宽温适应”设计,关键参数可直接对应电路设计需求:

  • 阻值:27kΩ(标注代码“2702”,即27×10²Ω,符合E96系列阻值规范);
  • 精度:±1%(后缀“KF”为松下精度代码,对应1%误差等级,无需额外校准即可满足多数信号处理需求);
  • 功率:100mW(0.1W,0603封装常规功率规格,适配小功率电路场景);
  • 工作电压:75V(最大连续工作电压,需与功率约束联动);
  • 温度系数(TCR):±100ppm/℃;
  • 工作温度范围:-55℃+155℃(覆盖工业级宽温需求,优于商业级070℃)。

二、核心性能参数详解(实用场景解读)

1. 阻值精度与电路适配性

27kΩ阻值搭配±1%精度,是电子电路中分压、基准电压调节、信号衰减的高频规格。例如:

  • 在音频电路中,可用于音量电位器的分压网络,±1%误差保证左右声道平衡偏差控制在1%以内;
  • 在电源反馈电路中(如5V转3.3V的DC-DC转换器),无需校准即可实现输出电压稳定调节(误差<1%)。

2. 功率与电压的双约束逻辑

额定功率100mW是0603封装的标准功率,实际应用需同时满足电压≤75V和电流≤1.33mA(I=P/U=100mW/75V)。若仅关注电压(如75V直流),电流需严格控制在1.33mA以内,避免过功率发热导致阻值漂移(厚膜电阻过热会出现阻值上升趋势)。

3. 温度特性与宽温场景适配

±100ppm/℃的温度系数意味着:温度每变化1℃,阻值变化约±2.7Ω(27kΩ×100×10⁻⁶)。在-55℃~+155℃的宽温范围内,阻值总漂移约±567Ω(±2.1%),仍能满足工业控制中传感器接口电路的信号调理需求(多数传感器信号漂移允许≤5%)。

三、封装与尺寸规格

ERJ3EKF2702V采用0603封装(英制:0.06″×0.03″;公制:1.6mm×0.8mm),是贴片电阻中“高密度设计友好”的小尺寸封装:

  • 贴装兼容性:适配富士、西门子等常规SMT贴片机,贴装精度可达±0.1mm,批量生产良率稳定;
  • 空间节省:相比0805封装(2.0mm×1.2mm),体积减少约40%,适合手机、智能手表等便携设备的高密度PCB;
  • 焊接可靠性:厚膜工艺的电极采用银钯合金,焊接点抗机械应力性能优于薄膜电阻,适合回流焊工艺(峰值温度260℃±5℃)。

四、典型应用场景

结合参数特性,该电阻主要应用于以下场景:

  1. 消费电子:手机音频信号分压、触摸IC限流、智能手环的传感器接口电阻;
  2. 工业控制:PLC输入输出接口的信号衰减、温度传感器(如PT100)的信号调理电阻;
  3. 通信设备:路由器以太网PHY芯片的偏置电阻、交换机信号链路的匹配电阻;
  4. 电源电路:小功率DC-DC转换器的反馈分压网络、线性电源的限流电阻(如5V转3.3V电源的输出分压);
  5. 汽车电子(辅助场景):车载中控的低功率辅助电路(需确认具体型号是否符合AEC-Q200,ERJ3E系列后缀“V”部分型号支持汽车级)。

五、可靠性与环境适应性

松下厚膜电阻的可靠性源于工艺特点:

  • 抗硫化性能:银钯合金电极相比纯银电极,抗硫化能力提升3倍以上,适合沿海潮湿环境或含硫工业废气场景;
  • 长期稳定性:额定条件下工作1000小时,阻值漂移通常小于±0.5%,满足电子产品5年以上使用需求;
  • 标准合规:符合IEC 61039、JIS C 5201等国际/日本标准,通过UL、VDE认证,适合全球市场批量应用。

六、选型与替换建议

若需替换ERJ3EKF2702V,需满足以下核心条件:

  • 同封装:0603封装;
  • 同阻值精度:27kΩ±1%;
  • 同功率/电压:100mW/75V;
  • 同温特性:TCR±100ppm/℃、工作温度-55℃~+155℃。

常见替换型号包括:

  • 国巨RC0603FR-0727KL(0603、27kΩ±1%、100mW);
  • 三星CL0603-JP-2702GL(0603、27kΩ±1%、100mW)。

若需汽车级应用,需选择符合AEC-Q200标准的型号(如松下ERJ3EKF2702V的汽车级版本ERJ3EKF2702V1)。

ERJ3EKF2702V以其平衡的性能与成本,成为电子设计中27kΩ±1%规格的主流选择,尤其适合对尺寸、温度适应性有要求的批量生产场景。

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