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ROHM LTR18EZPJ180
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ROHM LTR18EZPJ180
- 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
- LTR18EZPJ180
- Electronic Component
- 1
- Package
- 0612
- Electronic Component
- SMD Resistor
- Electronic Component
- ±5%
- Electronic Component
- 0.028g
- Electronic Component
- 18Ω
- Electronic Component
- 1
- Electronic Component
- BM0058427287
- 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.
LTR18EZPJ180 产品概述
一、产品概要
LTR18EZPJ180 为 ROHM（罗姆）推出的一款厚膜贴片电阻，阻值 18Ω（18R），精度 ±5%（J），额定功率 750mW，适用于需中等功率与成本优化的表面贴装电路。封装标识为 0612（SMD 型号），适合自动贴装与回流焊工艺。
二、电气性能要点
- 电阻类型：厚膜（Thick film）
- 阻值：18Ω（标称）
- 精度：±5%（J）
- 额定功率：750mW（环境与散热条件下）
- 温度系数（TCR）：±200 ppm/℃，适合对温漂要求不严的普通电子应用
- 工作温度范围：-55℃ ～ +155℃
三、物理与环境特性
0612 封装为贴片形式，适用于空间受限但需较高功耗承载的设计。厚膜电阻结构在成本、可获得阻值范围与批量一致性方面具有优势，但相较薄膜或合金电阻，温漂和噪声略高。器件符合一般工业级温度与湿热环境要求，具体环境应以厂商 Datasheet 为准。
四、典型应用场景
适用于电源分流、限流、去耦电路、驱动/驱动前级、消费电子与工业控制等场合。因额定功率达 750mW，可用于中等功率的功率耗散位置，但不建议用于脉冲能量过大或严格温漂控制的精密测量电路。
五、选型与设计注意事项
- 功率降额：额定 750mW 需在指定环境温度与 PCB 散热条件下使用，超过环境温度时须按厂商的功率-温度降额曲线线性降额。
- 散热设计：通过增大焊盘铜箔面积、采用多层铜层或散热孔（via）提升热传导，降低结温。
- 温漂与精度：±200 ppm/℃ 与 ±5% 精度适合一般应用；对精密采样/测量请选用低 TCR 与更高精度型号。
- 瞬态与过载：避免长时间超过额定功率或承受大电流脉冲，必要时增加保护元件（如保险、限流）或选用更高功率件。
六、焊接与组装建议
适用于常规回流焊工艺。为保证可靠焊接，推荐参考 ROHM 的焊接温度曲线与推荐焊盘尺寸，控制回流曲线峰值温度与时间，避免因过热或冷却过快引致机械应力或电阻漂移。
七、可靠性与规范
ROHM 品牌产品通常满足 RoHS 要求并通过相关可靠性测试（高温储存、温度循环、湿热等），具体认证信息请参阅官方 Datasheet 与合格证书。长期可靠性依赖于合理的热管理与规范的 PCB 设计。
八、总结
LTR18EZPJ180 是一款面向通用电子与工业应用的厚膜 SMD 电阻，兼顾成本与中等功率能力。选型时关注功率降额与散热设计、评估温漂对系统精度的影响，按 ROHM 提供的资料与推荐工艺执行可获得稳定的长期性能。如需更详细的尺寸、焊盘建议和功率-温度曲线，请参考 ROHM 官方 Datasheet。
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