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UNI-ROYAL 0603WAF4990T5E
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 0603WAF4990T5E
- Type
- UNI-ROYAL
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 100mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 0603WAF4990T5E
- Electronic Component
- 1
- Package
- 0603
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.023g
- Electronic Component
- 499Ω
- Electronic Component
- 10
- Electronic Component
- BM0257245678
- 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.
0603WAF4990T5E 产品概述
一、主要特性
0603WAF4990T5E 为 UNI-ROYAL（厚声）系列厚膜贴片电阻，阻值 499Ω，精度 ±1%，额定功率 100mW，额定工作电压 75V。封装为标准 0603（约 1.6mm × 0.8mm），温度系数（TCR）为 ±100ppm/℃，工作温度范围 -55℃ 至 +155℃。该型号针对小型化电路设计，兼顾精度与耐温性能，适合表面贴装自动化生产线。
二、电气性能
- 阻值：499Ω（±1%），满足 E96 精度等级的精确配阻要求。
- 额定功率：0.1W（100mW），在标准 PCB 散热条件下使用。
- 最大工作电压：75V（请确保电路中无瞬态超过此值）。
- 温度系数：±100ppm/℃，适用于对温漂有一定要求的模拟与数字电路。
这些参数使该器件可用于精密分压、阻抗匹配、基准电路及一般信号通路。
三、机械与环境特性
- 封装：0603 厚膜 SMD，外形小巧，适合高密度组装。
- 工作温度：-55℃ ~ +155℃，能够满足普通工业环境下的长期可靠性需求。
- 焊接兼容性：适应无铅回流焊工艺，具有良好的焊接可靠性与机械强度。
在高温或高湿环境下，应注意按制造商建议进行老化与降额使用。
四、典型应用
- 移动设备与消费电子中的信号与电源滤波、分压网络。
- 测量仪器与数据采集系统中的精密电阻阵列或偏置网络。
- 工业控制板、通信设备中常规阻值需求的通用位置。
适用于对体积、精度和温度稳定性有平衡要求的场合。
五、封装与安装注意事项
- 建议按照 IPC 推荐的 PCB 焊盘尺寸和 0603 贴装规范设计焊盘，便于贴片机与回流焊的可靠焊接。
- 额定功率为在推荐散热条件下的值，实际工作时建议考虑 PCB 铜箔面积与环境温度对散热的影响并做适当降额。
- 回流焊建议采用标准无铅回流曲线，焊接峰值温度与时长应遵循工艺规范以避免组件热应力。
- 贮存与处理应防潮、防污染，避免机械碰撞导致芯片断裂或引脚脱落。
六、订购信息与质量保证
型号：0603WAF4990T5E，品牌：UNI-ROYAL（厚声），封装：0603，阻值：499Ω，精度：±1%，常见以卷带（SMD tape & reel）方式供货，适用于自动贴装。产品经过常规电子元件出厂检验，具备稳定的一致性；如用于关键或特殊环境（如严格航空/汽车级应用），建议与供应商确认相关可靠性测试报告与长期寿命数据。
总结：0603WAF4990T5E 以小型化封装、高精度和较宽的工作温度范围为特点，适合各种需要高密度贴装与稳定电阻值的电子设计场景。在电路布局与热管理上做好设计与降额考量，可发挥其最佳性能。若需详细电气表格或可靠性测试数据，建议联系供应商获取完整数据手册。
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