WMSIC Electronic Components

ERJ3EKF30R9V

ModelERJ3EKF30R9V
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 ERJ3EKF30R9V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
100mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJ3EKF30R9V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±1%
Electronic Component
0.03g
Electronic Component
30.9Ω
Electronic Component
1
Electronic Component
BM0257349718
Operating Temperature
55℃~+155℃
Electronic Component
±100ppm/℃
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.

ERJ3EKF30R9V 厚膜贴片电阻产品概述

一、产品定位与核心身份

ERJ3EKF30R9V是松下(PANASONIC)推出的0603封装厚膜贴片电阻,属于松下厚膜电阻系列中的高性价比精准型产品。该电阻针对小型化、低功耗电子设备的设计需求,兼顾阻值精度、环境适应性与量产成本,广泛应用于工业控制、汽车电子、通信及消费电子等领域。

二、基础参数详解

该电阻的核心参数明确且针对性强,具体如下:

  1. 阻值与精度:标称阻值30.9Ω,精度±1%——属于非标准常规阻值(非1、10、100等整数量),但±1%的高精度可避免电路中通过串联/并联组合实现非标准阻值时引入的额外误差,适合需要精准分压、电流采样的场景(如ADC参考电压电路、电机相电流检测)。
  2. 功率额定值:100mW(0.1W)——满足绝大多数低功耗电路的小信号功率需求,避免了高功率电阻的体积冗余,适配便携设备、小型模块的空间限制。
  3. 温度系数(TCR):±100ppm/℃——即温度每变化1℃,阻值变化±0.00309Ω(计算方式:30.9Ω×100×10⁻⁶)。在工作温度范围(-55℃~+155℃)内,最大阻值漂移约为0.649Ω,相对精度仍可维持在2.1%以内,能适应温度波动较大的工业、汽车环境。
  4. 工作温度范围:-55℃至+155℃——覆盖低温启动(如极寒地区汽车电子)和高温工作(如工业设备内部散热环境)的严苛场景,符合汽车电子AEC-Q200标准(松下该系列电阻通常通过此认证)。

三、封装与尺寸特性

ERJ3EKF30R9V采用0603封装(英制尺寸,对应公制1608),具体尺寸约为1.6mm(长)×0.8mm(宽)×0.4mm(厚)。该封装具有以下优势:

  • 高密度PCB适配:小体积可支持PCB上更多元件集成,适合物联网节点、可穿戴设备等小型化产品;
  • 焊接兼容性:适配回流焊、波峰焊等主流表面贴装工艺,生产效率高,焊点可靠性符合行业标准;
  • 机械稳定性:封装结构紧凑,抗振动、抗冲击性能满足工业/汽车级应用需求。

四、性能优势与核心价值

  1. 厚膜工艺的平衡优势:相比薄膜电阻(成本高),厚膜工艺在宽温度范围内阻值漂移小、抗腐蚀能力强;相比碳膜电阻(精度低),该电阻精度更高,适合需要精准度的电路;
  2. 环保合规性:符合RoHS、REACH等全球环保法规,无铅无镉,满足出口产品的环保要求;
  3. 可靠性验证:松下成熟的厚膜电阻生产工艺,确保产品在长期使用中阻值稳定,失效率低(典型MTBF值≥10⁶小时)。

五、典型应用领域

该电阻的参数特性使其在多个领域具有广泛适用性:

  1. 汽车电子:胎压监测系统(TPMS)传感器信号调理电路中的分压电阻、仪表盘背光控制电路中的限流电阻;
  2. 工业控制:PLC输入模块的信号分压电阻、传感器接口电路中的电流采样电阻;
  3. 通信设备:光纤收发器的偏置电压分压电阻、基站射频前端的小信号偏置电阻;
  4. 消费电子:蓝牙耳机音频放大电路中的反馈电阻、智能手机电源管理模块中的电压检测电阻。

六、选型注意事项

在使用该电阻时,需注意以下两点:

  1. 功率降额:实际应用中功率需控制在额定值的80%以内(即≤80mW),避免长期过载导致阻值漂移或失效;
  2. 温度补偿:若应用场景对阻值精度要求极高(如高精度测量电路),可结合TCR参数做温度补偿设计,进一步提升精度。

ERJ3EKF30R9V凭借精准阻值、宽温适应性与小型化封装,成为工业、汽车及消费电子领域中低功耗精准电路的理想电阻选择,兼顾性能与成本优势。

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