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RUILON RL1812A121K
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RL1812A121K
- Type
- RUILON
- Minimum package
- 1000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- RL1812A121K
- Electronic Component
- 1
- Package
- 1812
- Electronic Component
- Varistor Resistor
- Electronic Component
- 1.5J
- Electronic Component
- 0.209g
- Electronic Component
- 1
- Varistor Voltage
- 108V~132V
- Electronic Component
- BM0257700972
- Voltage
- 290V
- Operating Voltage(AC)
- 65V
- Operating Voltage(DC)
- 90V
- Surge Current
- 800A
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RL1812A121K 产品概述
RL1812A121K 是 RUILON（瑞隆源）推出的一款贴片型金属氧化物压敏电阻（MOV），封装为 1812（EIA），专为中低电压直流/交流系统的浪涌抑制和瞬态过压保护设计。器件已通过出厂校验，可靠性与一致性满足常规工业应用需求。
一、主要参数概览
- 压敏电压（压敏阈值）：108V ~ 132V
- 钳位电压：290V（典型工作时的限压能力）
- 工作电压（DC）：90V
- 工作电压（AC）：65V（有效值）
- 峰值浪涌电流：800A（单次浪涌能力）
- 吸收能量：1.5J
- 品牌/产地：RUILON（瑞隆源）
- 封装形式：1812 贴片（适合回流焊工艺）
二、性能特点与优势
- 中等压敏电压区间（108–132V），适配 48V 类直流供电系统或类似工作电压场景。
- 290V 的钳位水平在遇到大幅上升瞬态时能有效限制电压，保护下游元件免受损坏。
- 800A 峰值浪涌电流和 1.5J 的能量吸收能力，使其能承受常见工业及通讯环境的脉冲冲击。
- 1812 封装便于自动化贴装与回流焊，适合批量生产和表面贴装工艺。
三、典型应用场景
- 通信电源和 48V 供电系统的输入端瞬态抑制。
- 开关电源、适配器和逆变器的输入/输出保护。
- 工业控制设备、楼宇自控以及安防监控系统的过压保护。
- 与其它过压保护元件（熔断器、TVS 二极管等）配合使用，构成多级保护方案。
四、选型与使用建议
- 确认系统正常工作电压与器件工作电压匹配，留有适当裕量以避免长期偏置导致寿命下降。
- 若系统可能出现高能量重复浪涌，建议并联或选用能量等级更高的 MOV，同时配合熔断器或限流器使用。
- 布局上应将 MOV 尽量靠近入电端或受保护元件放置，缩短导线以提高响应效率。
- 对于需要更快响应的 ESD 或瞬变抑制，可与 TVS 二极管联合使用，形成宽频带保护。
五、安装、可靠性与注意事项
- 采用标准 1812 PCB 焊盘布局与回流焊工艺，注意焊接温度曲线与厂家推荐工艺以避免损伤。
- MOV 属被动非线性器件，长期受偏置和重复大能量冲击会导致参数漂移，必要时设定维修或更换周期。
- 储存应避免高温、高湿及强酸碱环境，防止材料老化或封装受损。
- 在设计保护电路时，应预留足够的散热空间和可靠的接地路径，以保证器件在浪涌事件后的热稳定性。
总结：RL1812A121K 以其适中的压敏电压、良好的浪涌承受能力和 SMD 1812 的封装形式，适合用于中低压直流与交流系统的浪涌保护，是通信电源、工业控制与消费电子等领域的经济可靠选择。
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