WMSIC Electronic Components

ERJ3EKF33R0V

ModelERJ3EKF33R0V
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 ERJ3EKF33R0V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF33R0V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
33Ω
Electronic Component
1
Electronic Component
BM0227758048
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.

ERJ3EKF33R0V 产品概述

ERJ3EKF33R0V是松下(PANASONIC)推出的精密厚膜贴片电阻器,针对小型化、高精度电子电路设计优化,采用0603标准封装,广泛适配消费电子、工业控制、通信设备等领域的主流需求,依托松下成熟的厚膜工艺,具备可靠的长期稳定性与环境耐受性。

一、产品定位与品牌背景

作为松下厚膜电阻产品线中的精密级型号,ERJ3EKF33R0V聚焦“小体积+高一致性”需求,采用丝网印刷+高温烧结工艺,电阻膜层均匀性优于行业平均水平。松下在电子元器件领域的50余年研发积累,使其该型号通过了多项可靠性测试(如湿热、振动、温度循环),是OEM/ODM厂商的常用选型之一。

二、核心参数全解析

关键参数直接决定应用边界,以下为参数的实际意义与工程参考:

1. 阻值与精度

  • 标称阻值:33Ω(中低阻值,适配电流检测、分压网络);
  • 精度等级:±1%(实际阻值32.67Ω~33.33Ω),达到E96精密级标准,远高于通用电阻±5%的偏差,满足信号调理、基准分压等敏感场景。

2. 功率与电压特性

  • 额定功率:100mW(25℃长期稳定功率);
  • 额定电压:由公式推导为≈1.82V(U=√(P×R)=√(0.1W×33Ω)),若实际电压超过1.82V,需降功率使用(如3V时功率≤90mW);
  • 最大过压:75V为短时间脉冲耐受极限(如ESD、瞬态浪涌),不可长期工作。

3. 温度特性与范围

  • 温度系数(TCR):±100ppm/℃(温度每变1℃,阻值变±3.3mΩ),稳定性优于普通厚膜电阻(通常±200ppm/℃);
  • 工作温度:-55℃+155℃,覆盖工业级宽温(-40℃+85℃为消费级,该型号155℃仍可稳定工作)。

三、封装与物理特性

采用0603贴片封装(公制1.6mm×0.8mm×0.45mm),具备以下优势:

  1. 小型化适配:节省PCB空间,适合智能手机、智能穿戴、小型工业模块等高密度设计;
  2. 焊接兼容:支持回流焊/波峰焊,遵循松下推荐曲线(峰值260℃±5℃,回流时间≤10秒);
  3. 电极可靠性:银钯合金电极,焊接附着力强,长期使用不易脱焊。

四、典型应用场景

结合参数特性,核心应用包括:

  1. 消费电子:手机/平板电源滤波分压、音频阻抗匹配;
  2. 工业控制:传感器信号调理分压(压力/温度传感器)、PLC I/O接口限流;
  3. 通信设备:路由器/交换机电源电流检测(≤50mA)、射频匹配网络;
  4. 车载辅助:仪表盘背光调节、传感器辅助电路(需确认AEC-Q100认证,部分衍生型号带认证)。

五、性能优势总结

相比同封装通用电阻,核心优势:

  1. 高精度一致性:±1%精度+±100ppm/℃ TCR,减少电路调试工作量;
  2. 宽温可靠性:-55℃~+155℃,155℃时功率保持80%额定值(松下官方数据);
  3. 品牌可靠性:MTBF超10^6小时,通过湿热/振动测试;
  4. 成本优势:性价比优于薄膜电阻,适合批量生产。

六、选型与使用注意事项

  1. 功率降额:环境温度>25℃时,按松下降额曲线调整(如100℃时功率≤60mW);
  2. 静电防护:0603封装抗ESD弱,需防静电包装/操作;
  3. 参数匹配:需±0.1%精度选薄膜电阻,需200mW功率切换0805封装;
  4. 认证确认:汽车项目需确认AEC-Q100认证(基础型号需咨询代理商)。

实际选型需结合电路功率、温度、精度需求,建议参考松下官方datasheet或授权代理商获取详细指导。

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