WMSIC Electronic Components

ERJPA3J512V

ModelERJPA3J512V
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 ERJPA3J512V
Type
PANASONIC
Minimum package
5000 圆盘

Technical parameters

Power
250mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERJPA3J512V
Electronic Component
1
Package
0603
Electronic Component
SMD Resistor
Electronic Component
±5%
Electronic Component
0.03g
Electronic Component
5.1kΩ
Electronic Component
1
Electronic Component
BM0264517839
Operating Temperature
55℃~+155℃
Operating Voltage
150V
Electronic Component
±200ppm/℃
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ERJPA3J512V耐电涌厚膜贴片电阻器产品概述

一、产品核心定位与典型应用场景

松下ERJPA3J512V是一款专为抗瞬态电压冲击设计的厚膜贴片电阻,依托松下成熟的厚膜工艺,兼顾成本可控性与环境适应性,主要面向需要抑制浪涌干扰的中小功率电路。其典型应用场景包括:

  1. 工业控制领域:PLC输入输出接口、电机驱动辅助电路,应对工业现场的瞬态电压波动(如设备启停、电网干扰);
  2. 汽车电子子系统:车载传感器接口、车身控制模块(BCM)的辅助电路,适配车载-40℃~+85℃的常规温度范围(甚至可覆盖极端低温场景);
  3. 消费电子电源:充电器、机顶盒电源电路的浪涌抑制环节,抵御雷击、静电放电(ESD)对敏感元件的损害;
  4. 通信设备接口:路由器、交换机的信号调理电路,减少瞬态电压对信号传输的干扰。

二、关键性能参数深度解析

该电阻的核心参数精准匹配中小功率耐电涌场景,具体解析如下:

  • 阻值与精度:标称阻值5.1kΩ(标识代码“512”表示5.1×10²Ω),精度±5%,满足大多数非精密电路的阻值控制需求(如分压、限流电路),无需额外校准即可稳定工作;
  • 功率与电压:额定功率250mW,最大工作电压150V,可支撑中小功率电路的连续负载(如150V下最大电流约0.1mA),同时避免过压击穿风险;
  • 温度特性:温度系数±200ppm/℃,即温度每变化1℃,阻值变化约0.02%,在-55℃至+155℃的宽温范围内保持阻值稳定,适配高低温复杂环境(如户外工业设备、车载高温区域);
  • 耐电涌能力:作为耐电涌专用电阻,其厚膜层结构经过优化(如膜层厚度、致密性调整),可承受1.2/50μs浪涌波形冲击,减少电路中其他防护元件(如TVS管)的压力。

三、设计特点与可靠性优势

松下ERJPA3J512V的设计围绕“耐电涌+宽温稳定”两大核心,具备以下差异化优势:

  1. 厚膜工艺保障长期可靠性:采用厚膜印刷技术制备电阻层,相比薄膜电阻成本降低30%以上,相比绕线电阻体积缩小50%;厚膜层的致密性提升了抗电涌与抗老化能力,经松下1000小时高温老化测试,阻值漂移率<0.5%;
  2. 宽温范围适配性:-55℃至+155℃的工作温度范围覆盖了工业、汽车电子的极端环境(如北方冬季户外设备、发动机舱附近电路),无需额外温控措施即可稳定运行;
  3. 贴片封装便于集成:采用标准化0805贴片封装(2.0mm×1.25mm),适配自动化贴装生产线,提升电路设计的小型化程度,同时减少人工安装误差(贴装良率>99%);
  4. 耐机械应力设计:电阻体与封装材料的热膨胀系数匹配,可抵御贴装、运输过程中的机械应力,降低开裂风险。

四、封装与尺寸规格

该电阻采用工业通用贴片封装,具体参数(以0805封装为例):

  • 封装尺寸:2.0mm(长)×1.25mm(宽)×0.5mm(厚);
  • 引脚间距:0.5mm;
  • 焊盘尺寸:建议采用0.8mm×0.6mm的矩形焊盘,适配回流焊、波峰焊工艺(回流焊峰值温度230℃250℃,时间1030秒)。

五、选型与使用注意事项

为确保该电阻发挥最佳性能,选型与使用需注意以下要点:

  1. 功率与电压匹配:电路实际功耗需低于250mW,工作电压不超过150V(如12V电源电路中,最大允许电流20mA),避免过功率导致电阻发热失效;
  2. 温度环境确认:若使用环境温度超出-55℃~+155℃,需更换其他宽温系列产品(如松下ERJ-S系列);
  3. 精度需求匹配:若电路需要±1%以上精度(如精密分压电路),需选择松下ERJ-P系列薄膜电阻,该电阻仅满足±5%的常规精度需求;
  4. 浪涌防护协同:虽然具备耐电涌能力,但在雷击高发区域,建议配合TVS管、压敏电阻使用,进一步提升电路防护等级。

总结:松下ERJPA3J512V耐电涌厚膜贴片电阻凭借宽温范围、耐电涌能力与成本优势,成为工业控制、汽车电子等领域中小功率浪涌抑制电路的可靠选择,适配自动化生产与小型化设计需求,可有效降低电路维护成本与失效风险。

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