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ERJ3EKF3011V
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- PANASONIC ERJ3EKF3011V
- Type
- PANASONIC
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- PANASONIC
- Electronic Component
- ERJ3EKF3011V
- Electronic Component
- 1
- Package
- 0603
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.03g
- Electronic Component
- 3.01kΩ
- Electronic Component
- 1
- Electronic Component
- BM0264567834
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 150V
- 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.
ERJ3EKF3011V 产品概述
一、产品基本参数
- 型号：ERJ3EKF3011V（PANASONIC）
- 类型：厚膜贴片电阻（精密级）
- 阻值：3.01 kΩ
- 精度：±1%
- 额定功率：100 mW
- 额定工作电压：150 V（铭牌项）
- 温度系数（TCR）：±100 ppm/℃（±0.01%/℃）
- 工作温度范围：-55℃ ~ +155℃
二、特性与结构要点
ERJ3EKF3011V 属于厚膜工艺的高可靠性贴片电阻，提供紧凑的体积与工业级温度范围。±1% 的阻值公差适合精密分压、滤波和阻抗匹配场合；±100 ppm/℃ 的 TCR 在厚膜产品中属于常见水平，兼顾成本与温漂性能。额定功率 100 mW 适合低功耗信号链与便携设备中的偏置/取样用途。
三、关键性能解读与使用注意
- 电压与功率关系：尽管铭牌写有“工作电压 150 V”，但在电阻上连续施加电压时必须同时满足功率限制。根据 P = V^2 / R，可算出在 3.01 kΩ、100 mW 条件下的连续最大电压约为 √(0.1×3010) ≈ 17.4 V。超过该电压会使功率超标而损坏元件。铭牌的高电压值通常指绝缘/耐压或短时耐受能力，使用时务必以功率极限为准。
- 温漂：±100 ppm/℃ 意味着每升高 1℃ 电阻约变化 0.01%；例如从 25℃ 到 125℃（Δ100℃）最大变化约为 ±1.0%。若电路要求更高稳定性，应考虑低 TCR 的金属膜/薄膜产品。
- 工作温度与可靠性：-55℃~+155℃ 的额定温度范围表明可用于较宽的工业温区，但在高温环境下需进行功率降额（derating）以保证长期稳定性。
- 厚膜特性：相比薄膜/金属膜，厚膜电阻在噪声、长期稳定性和温漂上通常略逊一筹，但成本较低且适合常规精度应用。
四、典型应用场景
精密分压器、ADC 前端阻抗、偏置网络、滤波电阻、便携式与工业控制电子、通信设备中低功耗信号处理等场合均适用。
五、PCB 布局与焊接建议
- 贴片焊接兼容常规 SMT 工艺，建议遵循厂家推荐的回流焊温度曲线；避免超长高温暴露以防阻值漂移。
- 布局时考虑热源和散热通道，尽量避免将高耗器件紧邻电阻；在高温环境下采用功率降额。
- 清洗时注意避免长时间超声振动或强溶剂浸泡，以免影响封装与端电极。
六、选型提示
若电路对温漂和噪声敏感，建议评估更低 TCR（如 ±25 ppm/℃）或金属膜系列；若需要更高电压承受能力，应重新核算功率条件或选用大阻值/更高功率等级器件。最终选型请参考松下官方数据手册以获取完整的温升、寿命和封装信息。
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