Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
UNI-ROYAL 1206W4F4703T5E
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 1206W4F4703T5E
- Type
- UNI-ROYAL
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 1206W4F4703T5E
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.03g
- Electronic Component
- 470kΩ
- Electronic Component
- 1
- Electronic Component
- BM0257341443
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 200V
- 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.
1206W4F4703T5E 产品概述
一、概述
1206W4F4703T5E 是 UNI-ROYAL（厚声）系列的贴片厚膜电阻，常规 1206 封装（3.2 × 1.6 mm），额定阻值 470 kΩ，精度 ±1%。额定功率 250 mW，最高工作电压 200 V，温度系数（TCR）±100 ppm/℃，工作温度范围 -55℃～+155℃，适合批量 SMT 装配与一般电子回路使用。
二、主要参数
- 类型：厚膜贴片电阻（SMD）
- 封装：1206（3.2×1.6 mm）
- 阻值：470 kΩ，公差 ±1%
- 额定功率：0.25 W
- 最高工作电压：200 V
- 温度系数：±100 ppm/℃
- 工作温度：-55℃ ~ +155℃
三、性能特点
- 厚膜工艺成本效益高、批量一致性良好。
- ±1% 精度适用于较高精度的分压和偏置电路。
- ±100 ppm/℃ 的 TCR 表示温度变化引起的阻值漂移可控（例如温度上升 100℃ 时约 1% 变化）。
- 相比薄膜/金属膜，厚膜在噪声和长期稳定性上一般略逊，但在绝大多数消费电子与工业应用中表现可靠。
四、典型应用
- 电源分压与参考电路
- 放大器和传感器的偏置网络
- RC 滤波器与时间常数设定
- 高阻输入电路及采样网络
- 消费电子、仪器仪表、工控等一般电子设备
五、使用与焊接建议
- 兼容常规无铅 SMT 回流工艺，建议遵循供应商提供的回流曲线。
- 安装时注意避免对电阻施加过大机械应力，焊盘设计应保证热量均匀分布以减少热应力。
- 在并联或串联分配功率时，需按实际电压与功率计算并考虑容差和温漂。
- 尽管理论上由功率计算可得到更高的允许电压，但必须遵守厂方标称的最高工作电压（200 V）。
六、选型与替代建议
- 若对低噪声、更优长期漂移或更低 TCR 有需求，推荐考虑薄膜或金属膜型号替代。
- 同系列不同阻值或功率可按相同封装和工艺选型以便于生产一致性。
- 订购时请使用完整型号 1206W4F4703T5E，并确认卷带包装和出货数量。
七、注意事项
- 避免在超过额定功率或工作电压的条件下长期运行；高湿或腐蚀性气氛下建议做保护处理。
- 存储应避光、防潮、常温保存，长时间存放建议在原包装内并保持干燥。
如需数据手册（含精确尺寸图、回流曲线、环境测试数据和可靠性指标），建议向 UNI-ROYAL 厚声索取最新资料以便工程验证。
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