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RUILON RL0805A820K
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RL0805A820K
- Type
- RUILON
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- RL0805A820K
- Electronic Component
- 1
- Package
- 805
- Electronic Component
- Varistor Resistor
- Electronic Component
- 200mJ
- Electronic Component
- 0.043g
- Electronic Component
- 1
- Varistor Voltage
- 90V
- Electronic Component
- BM0265618189
- Voltage
- 149V
- Operating Voltage(AC)
- 42V
- Operating Voltage(DC)
- 60V
- Surge Current
- 50A
- 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.
RL0805A820K 压敏电阻产品概述
一、核心参数深度解析
RL0805A820K是瑞隆源（RUILON）针对低电压电路浪涌防护推出的贴片压敏电阻，核心参数明确支撑其防护能力：
- 压敏电压：典型值90V（型号标注“A820K”对应系列规格，实际误差±10%），指电流达1mA时的电压阈值，是判断防护启动点的关键；
- 钳位电压：149V（峰值浪涌电流50A下测试值），即浪涌发生时可将电压钳位在此范围，避免后端电路过压损坏；
- 工作电压：DC60V/AC42V，为长期连续工作的额定值（需严格遵守，超压会加速器件老化）；
- 峰值浪涌电流：50A（8/20μs波形），单次最大耐受浪涌电流；
- 能量耐受：200mJ，对应浪涌能量的最大承受值（与电流持续时间正相关）。
二、封装与物理特性
该产品采用0805贴片封装（尺寸2.0mm×1.25mm×1.0mm），适配高密度PCB布局：
- 材料：氧化锌（ZnO）压敏陶瓷，具备ns级响应时间（<10ns），可快速抑制瞬态干扰；
- 焊接兼容性：支持回流焊、波峰焊，峰值温度≤260℃（回流焊时间≤10s），无开裂、焊盘脱落风险；
- 温域范围：工作温度-40℃+85℃，存储温度-55℃+125℃，适应极端环境稳定运行。
三、典型应用场景
凭借小体积、低工作电压特点，广泛应用于：
- 消费类电子：智能手机充电口、蓝牙耳机信号接口、智能手环电源模块的过压防护，避免静电/浪涌损坏敏感元件；
- 小型家电：智能插座USB接口、遥控器按键电路、小型加湿器控制板的浪涌抑制，提升产品可靠性；
- IoT通信模块：LoRa/BLE无线模块天线接口、传感器节点电源端防护，适应户外/工业环境干扰；
- 工业辅助电路：小型PLC I/O接口、温度/压力传感器模块的低电压防护，避免现场浪涌影响信号传输。
四、性能优势与设计注意事项
核心优势
- 高集成度：0805封装适配紧凑PCB，不占用额外空间；
- 快速响应：ns级响应时间，有效抑制ESD、雷电感应等瞬态干扰；
- 成本可控：国产化优势，批量应用性价比突出；
- 宽温稳定：-40℃~+85℃范围内参数变化小，适应极端环境。
设计注意事项
- 电压限制：严禁长期工作电压超DC60V/AC42V，否则加速老化失效；
- 浪涌冗余：户外设备可并联2~3个器件提升耐受次数；
- 并联均流：并联需保证压敏电压误差≤5%，避免局部过流；
- 焊接工艺：避免过高温度/过长时间焊接，防止封装开裂。
五、选型匹配建议
若需替换或拓展应用，需遵循：
- 电压匹配：电路DC工作电压≤60V、AC≤42V时优先选用；
- 浪涌扩展：单次浪涌>50A可并联多个，或选1206封装同系列产品；
- 封装兼容：0805封装可直接替换同类封装，但需确认压敏/钳位电压匹配；
- 成本平衡：小封装低电压场景下，本型号性价比优于高参数冗余型号。
该产品通过了RoHS认证，符合环保要求，是小型化电子设备浪涌防护的高性价比选择。
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