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UNI-ROYAL 1206W4F100JT5E
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- UNI-ROYAL 1206W4F100JT5E
- Type
- UNI-ROYAL
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 250mW
- Electronic Component
- Electronic Component
- Electronic Component
- UNI-ROYAL
- Electronic Component
- 1206W4F100JT5E
- Electronic Component
- 1
- Package
- 1206
- Electronic Component
- SMD Resistor
- Electronic Component
- ±1%
- Electronic Component
- 0.03g
- Electronic Component
- 10Ω
- Electronic Component
- 1
- Electronic Component
- BM0257245100
- Operating Temperature
- 55℃~+155℃
- Operating Voltage
- 200V
- Electronic Component
- ±400ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
1206W4F100JT5E 产品概述
一、产品简介
1206W4F100JT5E 为 UNI-ROYAL（厚声）品牌的贴片厚膜电阻，标准 1206 封装（约 3.2mm × 1.6mm），标称阻值 10Ω，阻值精度 ±1%，额定功率 250mW，最高工作电压标称 200V，温度系数（TCR）±400ppm/℃，工作温度范围 -55℃ ～ +155℃。属于通用型厚膜贴片电阻，兼顾成本与通用性能，适合大量 SMT 应用场景。
二、主要性能要点
- 阻值：10Ω ±1%（高精度厚膜等级）
- 功率：250mW（常温额定）
- 最高工作电压：200V（器件耐压，不等同于持续工作电压）
- TCR：±400ppm/℃（随温度变化阻值的典型量级）
- 环境温度范围：-55℃ ～ +155℃
- 封装：1206（适配常见 SMT 贴装设备）
三、电气与热性能说明（关键注意）
- 连续允许电流（受功率限制）：I_max = sqrt(P/R) ≈ sqrt(0.25/10) ≈ 0.158A（约158mA）。
- 在该电流下，两端电压 U = I·R ≈ 1.58V；因此尽管器件耐压高达 200V，但要避免在高电压下长时间工作以致功率超限。
- 温度系数 ±400ppm/℃ 意味着阻值随温度每升高 1℃ 约变化 0.004Ω（对于 10Ω），例如温度上升 100℃ 时阻值可能变化约 4%，在精密测量或恒流场合需考虑该漂移。
四、可靠性与工艺建议
- 可用于标准回流焊工艺，推荐按照 PCB 厂与锡膏说明选择回流曲线，避免过长高温暴露导致阻值漂移。
- 由于为厚膜结构，长期稳定性与低频噪声性能不及金属膜或合金电阻，适合一般功率分流、限流和阻尼用途，但对高精度、低漂移需求的场合应慎重。
- PCB 布局时注意散热：如果在较高环境温度或高功率点使用，应留有散热面积或使用较大铜箔以助散热并按实际环境做功率降额。
五、典型应用场景
- 通用电子产品中的限流、漏电/拉低电阻、阻尼或分压应用；
- LED 驱动、小功率电源和模拟电路中的保护与阻尼元件；
- 成本敏感且对精度和长期漂移要求不极端的消费电子和工业控制产品。
六、选型建议与注意事项
- 若需长期在高温或高精度场合使用，建议考虑低 TCR（如 ±50–100ppm/℃）的金属膜或合金电阻；若需更大电流应选用更高功率或专用分流电阻。
- 下游设计中以功率限制为主要约束，而非标称耐压；务必计算实际工作电压/电流并对功率进行降额处理以延长寿命。
- 订购时请向供应商确认包装（盘装/卷装）、潮湿等级（MSL）以及是否有相关质量认证或试验报告。
总结：1206W4F100JT5E 提供了成本与可靠性均衡的解决方案，适合多数通用 SMT 电路的低阻值应用，但在高精度或高功率场合需做额外评估与选型。
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