WMSIC Electronic Components

ERJ3EKF4752V

ModelERJ3EKF4752V
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 ERJ3EKF4752V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF4752V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
47.5kΩ
Electronic Component
1
Electronic Component
BM0265000623
Operating Temperature
55℃~+155℃
Operating Voltage
75V
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.

松下ERJ3EKF4752V厚膜贴片电阻产品概述

一、产品基本定位与封装特征

松下ERJ3EKF4752V属于厚膜贴片电阻,采用行业通用的0603封装(英制命名,对应公制1608封装,尺寸为1.6mm×0.8mm×0.4mm),是松下电阻产品线中针对小型化、中精度应用场景的主流型号。厚膜工艺通过丝网印刷将电阻浆料烧结在陶瓷基底上,兼顾了性能稳定性与成本控制,适合量产需求。

二、核心电气参数详解

该型号的关键电气参数明确了其应用边界,核心指标如下:

  1. 阻值与精度:标称阻值47.5kΩ,精度±1%——满足大多数工业控制、消费电子对阻值误差的要求,无需额外校准即可用于信号调理、分压电路;
  2. 功率与电压限制:额定功率100mW,最大工作电压75V。需注意两者的协同限制:实际工作中,功率不得超过100mW,电压不得超过75V。通过计算可知,当电压达到75V时,功率约为117mW(超出额定功率),因此实际最大允许电压需取**√(P×R)=√(0.1W×47500Ω)≈68.9V**,应用时需以较小值为准;
  3. 温度系数(TCR):±100ppm/℃——表示温度每变化1℃,阻值变化±0.01%。例如,温度从25℃升至125℃(变化100℃),阻值变化≤±1%,宽温区下仍保持较高稳定性;
  4. 工作温度范围:-55℃至+155℃——覆盖工业级温区,可适应极端环境(如户外设备、高温车间)。

三、关键性能优势

  1. 小型化高集成:0603封装体积小巧,适合高密度PCB设计,可有效减少电路占用空间,适配智能手机、可穿戴设备等便携产品;
  2. 宽温稳定性:TCR±100ppm/℃结合-55~155℃工作范围,解决了宽温环境下阻值漂移问题,适合工业控制、汽车辅助电子等场景;
  3. 成熟可靠性:松下厚膜工艺经过多年验证,电阻性能稳定,抗冲击(1000m/s²)、抗振动(10~2000Hz,10g加速度)能力符合IEC 61000-4-6等行业标准;
  4. 成本效益平衡:厚膜工艺相比薄膜电阻成本更低,同时满足中精度、宽温需求,适合批量应用。

四、典型应用场景

该型号因参数适配性强,广泛应用于以下领域:

  1. 消费电子:智能手机、平板电脑的电源管理电路(如分压、限流)、信号滤波模块;
  2. 工业控制:PLC(可编程逻辑控制器)的传感器接口、模拟量调理电路(宽温需求);
  3. 可穿戴设备:智能手表、手环的低功耗信号处理电路(小封装+低功率);
  4. 汽车电子:辅助驾驶系统的信号分压、低压滤波电路(非严苛汽车级场景,需确认具体认证)。

五、可靠性与环境适应性

  1. 耐温性能:155℃高温下长期工作1000小时,阻值变化≤0.5%;-55℃低温下阻值无明显漂移;
  2. 耐湿与耐腐蚀:表面涂覆抗湿涂层,符合JIS C 5013标准,可抵御湿度≤85%RH的环境;
  3. 长期稳定性:额定功率下工作1000小时,阻值漂移≤±0.5%,满足量产产品的长期可靠性要求。

六、选型与使用注意事项

  1. 封装匹配:需确认PCB焊盘尺寸符合0603封装要求(焊盘尺寸建议1.0mm×0.6mm,间距0.6mm);
  2. 功率/电压控制:实际工作中需确保功率≤100mW,电压≤68.9V(优先满足功率限制);
  3. 焊接工艺:推荐回流焊(峰值温度240~260℃,时间≤10秒),避免手工焊过热导致电阻性能下降;
  4. 存储条件:常温干燥环境(-20~40℃,湿度≤60%RH),开封后建议12个月内使用完毕。

该型号凭借平衡的性能与成本,成为工业、消费电子领域小型化电路设计的常用选择。

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