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UNI-ROYAL 0402WGF1802TCE
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 0402WGF1802TCE
- Type
- UNI-ROYAL
- Minimum package
- 10000 圆盘
Technical parameters
- Power
- 62.5mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 0402WGF1802TCE
- Electronic Component
- 1
- Package
- 0402
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.009g
- Electronic Component
- 18kΩ
- Electronic Component
- 10
- Electronic Component
- BM0257242482
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 50V
- 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.
0402WGF1802TCE 产品概述
一、产品简介
0402WGF1802TCE 是 UNI-ROYAL（厚声）出品的一款0402封装厚膜贴片电阻，标称阻值 18kΩ，精度 ±1%，额定功率 62.5mW，额定工作电压 50V，温度系数（TCR）±100ppm/℃，工作温度范围 -55℃ 至 +155℃。典型用途为高密度贴装场合的偏置、拉电阻、阻容滤波与阻抗匹配等通用电阻场景。
二、主要电气参数（要点）
- 阻值：18kΩ
- 精度：±1%
- 额定功率：62.5mW（0402尺寸功率级别）
- 额定工作电压：50V
- 温度系数：±100ppm/℃（中等热漂）
- 工作温度：-55℃ ～ +155℃
- 封装：0402（约 1.0mm × 0.5mm）
三、电气使用注意
- 功率与电压关系：基于额定功率计算的最大连续电压 Vmax = √(P·R) ≈ √(0.0625·18000) ≈ 33.5V；最大连续电流 Imax = √(P/R) ≈ 1.86mA。因此在实际电路设计中，即使器件额定工作电压为 50V，也应确保施加在该电阻上的连续电压不超过约 33.5V 以免超过功耗限制。
- 温度降额：高于环境温度时需降额使用。常见规则为在 70℃ 以上开始线性降额，至最大工作温度功率接近零；具体降额曲线请参照厂方数据手册。
四、封装与安装建议
- 0402 为超小型封装，适合高密度 SMT 板。推荐按厂家推荐的焊盘尺寸设计过孔与焊盘，保证焊接可靠性与热散逸。
- 兼容常见无铅回流焊工艺（请以厂方回流曲线为准），典型峰值温度 245–260℃，峰值时间短于 10s。
- 避免在焊接或后处理过程中对电阻施加过大机械应力，防止端电极剥离或基体裂纹。
五、性能特点与应用场景
- 特点：成本低、耐温范围广、尺寸小、易于批量装配；±1% 精度适合中高精度分压、偏置与滤波电路。
- 典型应用：移动设备、物联网终端、传感器前端偏置网络、模拟电路拉电阻/限流、消费电子与工业控制的低功耗电路。
六、可靠性与限制
- 厚膜工艺相比金属薄膜/金属箔在噪声、长期漂移与热稳定性上略逊一筹，不适用于要求极低 TCR 或极高长期稳定性的场合（例如基准电阻、精密测量标准）。
- 对脉冲与瞬态过压敏感，短脉冲可承受高于额定功率的瞬时能量，但需在设计中保留裕量并参照厂方脉冲能力数据。
使用本器件时，建议依据 UNI-ROYAL 正式数据手册校核回流曲线、焊盘设计与降额曲线，以确保长期可靠性与电路性能。
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