Model & package intelligence
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UNI-ROYAL 0603WAF4991T5E
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 0603WAF4991T5E
- Type
- UNI-ROYAL
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 0603WAF4991T5E
- Electronic Component
- 1
- Package
- 0603
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.023g
- Electronic Component
- 4.99kΩ
- Electronic Component
- 1
- Electronic Component
- BM0257245557
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 75V
- 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.
0603WAF4991T5E 产品概述
一、产品简介
0603WAF4991T5E 是 UNI-ROYAL（厚声）出品的一款厚膜贴片电阻，封装尺寸为 0603（1608公制）。标称阻值为 4.99 kΩ，精度 ±1%，额定功率 100 mW，适用于对体积、成本和稳定性有综合要求的表面贴装电路。
二、主要参数
- 电阻类型：厚膜电阻
- 阻值：4.99 kΩ
- 精度：±1%（1/100）
- 额定功率：100 mW（环境温度下）
- 最大工作电压：75 V
- 温度系数（TCR）：±100 ppm/℃
- 工作温度范围：-55 ℃ 至 +155 ℃
- 封装：0603（英制0603）
- 品牌：UNI-ROYAL（厚声）
三、产品特点与优势
- 体积小，适合高密度贴片设计与空间受限的应用场景。
- ±1% 精度与 ±100 ppm/℃ 的温漂，使其在一般模拟与数字电路中具有可靠的阻值稳定性。
- 厚膜工艺成本效益高，批量一致性好，满足大规模生产需求。
- 最大工作电压 75 V，适合中低压电路应用，同时在额定功率范围内表现稳定。
四、典型应用场景
- 移动通讯、消费类电子产品的分压、偏置与限流电路。
- 仪表与测控设备的非关键精密分路（需配合温漂与精度要求评估）。
- 工业控制板、汽车电子（非关键安全回路）以及其它需要小封装与批量化的嵌入式系统。
五、封装与装配建议
- 0603 封装适配自动化贴装与回流焊工艺。建议按照制造商提供的回流曲线与温度限制进行焊接，以保证长期可靠性。
- 在实际设计中，应考虑功率降额与热散逸条件：在较高环境温度或热密集区域，需采取降额或散热措施以避免过热导致寿命降低。
- 推荐在 PCB 布局时为电阻预留合适的焊盘，并避免紧邻高温发热元件。
六、可靠性与测试
UNI-ROYAL 的厚膜贴片电阻通常通过常规的机械与环境可靠性测试，包括温度循环、湿热、焊接耐受性和振动测试等。对于关键应用，建议根据应用场景与可靠性需求，参照厂方数据手册进一步确认具体的可靠性指标与使用条件。
如需更详细的电气特性曲线、回流焊规范或订购包装信息（卷带规格、最小包装量等），建议联系供应商索取 0603WAF4991T5E 的完整规格书。
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