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RUILON RL3225A511K
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON RL3225A511K
- Type
- RUILON
- Minimum package
- 1000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- RUILON
- Electronic Component
- RL3225A511K
- Electronic Component
- 1
- Package
- 3225
- Electronic Component
- Varistor Resistor
- Electronic Component
- 26.8J
- Electronic Component
- 0.96g
- Electronic Component
- 1
- Varistor Voltage
- 459V~561V
- Electronic Component
- BM0264391794
- Voltage
- 842V
- Static Capacitor
- 100pF@1kHz
- Operating Voltage(AC)
- 320V
- Operating Voltage(DC)
- 418V
- Surge Current
- 1.2kA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
RL3225A511K 压敏电阻产品概述
一、产品基本定位
RL3225A511K是瑞隆源（RUILON）推出的中高压贴片式压敏电阻，采用3225封装（尺寸约8.0×6.0mm），核心定位为中高压电路的过压浪涌防护器件。产品兼顾了贴片封装的空间优势与中高压耐冲击能力，适用于工业电源、电机驱动、光伏逆变器等对防护性能和集成度有双重要求的场景，是工业级电路过压保护的常规选型方案。
二、核心电气参数详解
1. 电压类参数
- 压敏电压：标称值511V（标注为“511”，即51×10¹），实际范围459~561V（公差±10%），匹配中高压电路的过压触发阈值；
- 工作电压：DC最大418V、AC最大320V，是器件持续工作的安全上限——长期超此值会导致压敏电阻老化、漏电流增大，最终失效；
- 钳位电压：浪涌冲击下最大限制电压842V（8/20μs波形），可有效抑制浪涌对后端敏感器件（如IGBT、IC）的电压击穿风险。
2. 耐冲击与电容参数
- 耐冲击能力：峰值浪涌电流1.2kA、能量26.8J，可应对常见的雷击浪涌（如户外设备）、开关浪涌（如电机启停、继电器切换）；
- 静态电容：100pF@1kHz，虽不属于低容值范围，但满足工业级电路的常规电容要求（高频场景需结合实际需求评估）。
三、封装与可靠性特点
采用3225贴片封装，体积小巧，适配自动化贴装生产线，可显著节省PCB空间；封装材料具备良好的耐热性（工作温度范围通常为-40℃~+85℃）与耐湿性，符合工业级环境的可靠性要求。产品经过温度循环、湿度老化等常规测试，批量应用中一致性与稳定性可靠。
四、典型应用场景
- 工业电源模块：针对三相AC380V系统或高压DC400V系统，抑制电网浪涌与开关噪声，保护电源模块内的整流桥、滤波电容；
- 电机驱动电路：保护IGBT、MOSFET等功率器件，应对电机启停、负载突变产生的浪涌电流；
- 光伏逆变器：直流侧（光伏板输出）的过压防护，避免雷击或组件异常导致的电压尖峰损坏逆变器；
- 充电桩辅助电路：高压直流回路的浪涌抑制，提升充电系统的可靠性与使用寿命。
五、选型与使用注意事项
- 电压匹配优先：必须确保电路持续工作电压不超过DC418V/AC320V，避免长期过压老化；
- 浪涌余量评估：若浪涌频繁（如户外雷击高发区），需并联多个器件或选择更高耐冲击型号（如峰值电流2kA以上）；
- 焊接工艺规范：贴片封装需遵循回流焊温度曲线（峰值温度230~250℃，时间≤30s），避免焊接温度过高损坏器件；
- 高频场景慎用：100pF电容可能对射频信号产生干扰，此类场景需替换为低容值压敏电阻（如10pF以下）。
该产品以平衡的防护性能与封装优势，成为中高压工业电路过压保护的实用选型，可满足多数常规工业场景的浪涌防护需求。
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