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ROHM LTR18EZPJ120
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ROHM LTR18EZPJ120
- Type
- ROHM
- Unit
- Electronic Component
- Minimum package
- 5000 圆盘
Technical parameters
- Power
- 750mW
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- Electronic Component
- ROHM
- Electronic Component
- LTR18EZPJ120
- Electronic Component
- 1
- Package
- 0612
- Electronic Component
- SMD Resistor
- Electronic Component
- ±5%
- Electronic Component
- 0.028g
- Electronic Component
- 12Ω
- Electronic Component
- 1
- Electronic Component
- BM0263492715
- Operating Temperature
- 55℃~+155℃
- Electronic Component
- ±200ppm/℃
- Resistor Type
- Resistor
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
LTR18EZPJ120（ROHM）产品概述
一、产品简介
LTR18EZPJ120 是 ROHM（罗姆）推出的一款厚膜贴片电阻，封装规格为 0612（约 0.06″×0.12″，常见尺寸约 1.5×3.0 mm 至 1.6×3.2 mm）。该型号为 12Ω、±5% 精度、额定功率 750 mW 的通用型 SMD 元件，适用于对成本敏感且要求稳健可靠的表面贴装电路设计。
二、主要参数
- 阻值：12 Ω
- 精度：±5%（J）
- 额定功率：750 mW（在规定环境和散热条件下）
- 温度系数（TCR）：±200 ppm/°C
- 工作温度范围：-55℃ 至 +155℃
- 封装：0612（贴片）
三、性能特点
- 厚膜工艺：成本低、适合大批量生产；在一般电源、限流、分压和旁路场合有良好性价比。
- 电热极限估算：在额定功率下，最大容许电流约为 0.25 A，对应最大容许电压约 3 V（I = √(P/R)，V = I·R），可用于中小电流路径。
- 温度稳定性：TCR ±200 ppm/°C 意味着中等温漂，温度上升 75℃ 时阻值可能变化约 1.5%，须在精度敏感电路中考虑漂移影响。
- 宽温区间：-55℃～+155℃，适合工业级环境。
四、典型应用场景
- 电源滤波与限流（如 LED 驱动限流、偏置网络）
- 分压与参考网络（精度要求不高的场合）
- 通用电子设备、家电控制板、工业控制与消费电子中要求体积小、成本低且可靠的阻值元件
五、封装与焊接注意事项
- 适用于标准 SMT 贴装与回流焊工艺，但应遵循 ROHM 或 PCB 工程的回流温度曲线与焊接工艺规范，避免过高温度和长时间加热导致电阻性能劣化。
- 为保证散热与功率能力，布局时应考虑周围铜箔面积和散热路径；若长期接近额定功率，需增加散热面或选择更大功率件以延长寿命。
- 储存与清洁时避免强腐蚀性溶剂直接作用电阻端帽与基体。
六、可靠性与选型建议
- 若电路对长期稳定性或温度漂移有较高要求，建议选用更低 TCR（薄膜或金属膜）或更高精度型号。
- 在接近或超过 50% 额定功率工作点时，应做热仿真与老化测试，评估实际环境下的温升与寿命。
- 采购时确认批次一致性与 ROHM 正品渠道，获取完整数据手册以核实回流规范与可靠性实验数据。
该型号定位为经济型、通用厚膜贴片电阻，在多种中低功率应用中表现平衡，是工程量产与替换设计的常用选择。
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