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ERJ2GEJ470X
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- PANASONIC ERJ2GEJ470X
- Type
- PANASONIC
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- PANASONIC
- Electronic Component
- ERJ2GEJ470X
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±5%
- Electronic Component
- 0.011g
- Electronic Component
- 47Ω
- Electronic Component
- 1
- Electronic Component
- BM0257247261
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 15V
- 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.
ERJ2GEJ470X 产品概述
一、产品简介
ERJ2GEJ470X 为松下（PANASONIC）系列厚膜贴片电阻，阻值 47Ω，公差 ±5%，额定功率 100mW，封装为 0402。该器件采用成熟的厚膜工艺制造，尺寸小、性能稳定，适合高密度贴装的表面贴装电路（SMD）场合，是通用类电阻的常用型号之一。
二、主要参数
- 电阻类型：厚膜电阻
- 阻值：47Ω
- 精度：±5%（J）
- 额定功率：100mW
- 最高工作电压：15V
- 温度系数（T.C.R）：±200 ppm/℃
- 工作温度范围：-55℃ ～ +155℃
- 品牌：PANASONIC（松下）
- 封装规格：0402（公制 1005）
三、性能与特性
- 稳定性：厚膜工艺在常温和一般应力下具有良好的电阻稳定性和重复性，可满足消费电子与工业控制类电路的常规要求。
- 温度漂移：±200 ppm/℃ 的温度系数意味着在温度变化时阻值变化受控，适用于对温漂要求不是特别严格的场合。
- 小型化：0402 封装体积小，利于高密度 PCB 布局与尺寸受限的终端产品。
- 电气安全：标称最高工作电压为 15V，适用于低电压信号与供电场合，注意不得超过器件极限以免引发击穿或发热。
四、典型应用场景
- 信号终端/去耦：47Ω 常用于信号线串联阻尼、终端匹配或减少反射。
- 分压/偏置网络：在模拟与数字电路中作为分压或偏置电阻使用。
- 驱动限流：适用于低功率 LED 限流与小信号电路。
- 通用电子设备：手机配件、便携式设备、消费电子、仪表及一般工业电子产品。
五、封装与可靠性
0402 封装适合自动贴装与回流焊工艺，建议使用符合工业回流温度曲线的无铅焊料与工艺参数。器件在规范焊接与合理散热条件下，可在给定的温度范围内长期可靠工作。长期高温、高湿或过载会加速漂移与失效，设计时需考虑环境应力。
六、设计与使用建议
- 功率降额：在较高环境温度或散热受限情况下，请对额定功率进行线性降额设计，避免长期在额定功率附近工作。
- PCB 布局：尽量避免将此类器件紧邻大功率发热元件，必要时增加散热铜箔或热通孔。
- 焊接注意：遵循松下推荐的回流曲线，避免超温或长时间高温暴露，以减少阻值漂移。
- 选型考虑：如电路对阻值精度或温漂有更高要求，可考虑更高精度或更低 TCR 的薄膜电阻或特殊材质产品。
七、采购与替代
ERJ2GEJ470X 为通用型号，品牌与封装一致时可在分销渠道或松下授权代理处采购。若需要更高精度、低温漂或更高功率，建议选用相应规格的薄膜或金属膜贴片电阻作为替代。购买时请确认包装形式（卷带、盘装）与具体制造批次以满足装配需求。
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