WMSIC Electronic Components

ERA2AEB431X

ModelERA2AEB431X
Package0402
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 ERA2AEB431X
Type
PANASONIC
Minimum package
10000 圆盘

Technical parameters

Power
63mW
Electronic Component
Electronic Component
Electronic Component
PANASONIC
Electronic Component
ERA2AEB431X
Electronic Component
1
Package
0402
Electronic Component
SMD Resistor
Electronic Component
±0.1%
Electronic Component
0.011g
Electronic Component
430Ω
Electronic Component
1
Electronic Component
BM0257349572
Operating Temperature
55℃~+155℃
Operating Voltage
50V
Electronic Component
±25ppm/℃
Resistor Type
Resistor

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

ERA2AEB431X 产品概述

一、概述

ERA2AEB431X 是松下(PANASONIC)系列的薄膜贴片电阻,封装为 0402(公制 1005),标称阻值 430 Ω,精度 ±0.1%,额定功率 63 mW,最大工作电压 50 V。该器件具有极低的温度系数(TCR ±25 ppm/℃)和宽工作温度范围(-55℃ 至 +155℃),适用于对阻值稳定性与温漂要求较高的精密电路场合。

二、主要特性

  • 高精度:阻值公差 ±0.1%,适合要求高精度分压、偏置和反馈网络的场景。
  • 低温漂:TCR ±25 ppm/℃,保证温度变化时阻值稳定,利于高精度测量与校准。
  • 薄膜工艺:薄膜结构带来更好的长时间稳定性与低噪声特性。
  • 小尺寸:0402 封装便于高密度 PCB 设计和自动化贴装。
  • 宽温域与耐环境性:可在 -55℃ 至 +155℃ 工作,适应工业级环境。

三、电气与机械参数

  • 标称阻值:430 Ω
  • 精度:±0.1%
  • 额定功率:63 mW(典型,参考厂商规范)
  • 最大工作电压:50 V(或按额定功率及阻值计算)
  • 温度系数:±25 ppm/℃
  • 工作温度范围:-55℃ ~ +155℃
  • 封装:0402(1005 公制)

四、典型应用场景

  • 精密测量与传感器接口电路(如桥路、放大器偏置)
  • 精密参考电路与电压分配网络
  • 通信与测试设备中需要低噪声、低漂移的阻值元件
  • 医疗仪器、工业控制与高可靠性电子系统

五、使用与可靠性建议

  • 功率裕量:建议在实际设计中留有功率裕量,避免长期在额定功率附近工作。高温环境中元件可承受功率会下降,应参考厂商的功率-温度降额曲线。
  • 热管理:在高密度布线时,避免将热源直接靠近该贴片电阻;合理设计铜箔尺寸与散热路径以降低结温。
  • 环境可靠性:薄膜电阻对湿度和温度循环具有良好耐受性,但建议遵循相关的焊接与清洗工艺以避免化学腐蚀或机械应力导致阻值漂移。
  • 抗焊接性:兼容常见的回流焊工艺(请参照松下提供的回流温度曲线),建议使用推荐的峰温与时间参数以保证长期可靠性。

六、布局与焊接建议

  • 焊盘设计:按照 0402 推荐焊盘尺寸进行 PCB 布局,保证良好焊接强度与可制造性。
  • 放置位置:尽量远离高发热器件与高频电感源,避免热应力和寄生耦合。
  • 回流规范:采用标准无铅或有铅回流曲线,控制峰值温度与加热时间,避免过烧。
  • 清洗与处理:焊接后若需清洗,使用对薄膜材料友好的清洗剂与工艺,防止腐蚀性残留物影响长期稳定性。

七、选型与注意事项

  • 若电路中可能出现瞬态过压,请验证阻值与最大工作电压的匹配,必要时用更高额定电压或与限流元件配合使用。
  • 对于极低噪声或极端长期稳定性要求,可参照厂方的数据手册选择专用精密系列或更高功率、封装的替代件。
  • 在有严格温漂要求的系统中,建议结合实际工作温度范围进行阻值温度漂移评估。

八、包装与采购

ERA2AEB431X 通常以贴片卷带(Tape & Reel)方式供应,便于 SMT 自动贴装。采购时请确认包装批次、储存条件及松下官方数据手册以获取完整的性能曲线与可靠性测试数据。

综上,ERA2AEB431X 以其高精度、低温漂和小型化封装,适合用于对阻值稳定性要求高且空间受限的精密电子设计。选型时请结合实际应用的功率、温度与电压工况,参考厂方完整规格书进行最终确认。

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