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RUILON 14D821K
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- RUILON 14D821K
- Type
- RUILON
- Minimum package
- 250
Technical parameters
- Electronic Component
- RUILON
- Electronic Component
- 14D821K
- Electronic Component
- 1
- Package
- Electronic Component
- Electronic Component
- Varistor Resistor
- Electronic Component
- 98.4J
- Electronic Component
- 4.556g
- Electronic Component
- 1
- Varistor Voltage
- 738V~902V
- Electronic Component
- BM0257667359
- Voltage
- 1.355kV
- Static Power
- 600mW
- Static Capacitor
- 230pF@1kHz
- Operating Voltage(AC)
- 510V
- Operating Voltage(DC)
- 670V
- Surge Current
- 4.5kA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
14D821K 产品概述
一、基本参数
14D821K 为径向引线型压敏电阻（MOV），品牌：RUILON(瑞隆源)。主要电气参数如下：压敏电压（Varistor Voltage）范围 738V～902V；钳位电压 1.355kV；直流工作电压 670V；交流工作电压 510V；峰值浪涌电流 4.5kA；单次能量吸收 98.4J；静态电容 230pF（1kHz）；直流静态功率耗散 600mW。产品已通过校验，适用于需要高能量吸收与高钳位能力的防护场合。
二、主要性能特点
- 高能量吸收：单次吸收能量达 98.4J，在遇到大幅突发浪涌时能有效限幅，保护后级电路元件。
- 强浪涌能力：峰值浪涌电流达 4.5kA，适合雷击、开关瞬变等高幅值干扰的抑制。
- 适中钳位电压：1.355kV 的钳位值在高压系统中能在保证保护效果的同时降低对被保护器件的冲击。
- 低寄生电容：230pF（1kHz）使其在对高频特性敏感的电路中影响较小，适合部分通信与电源滤波场合。
- 径向引线封装便于通孔插装、浪涌保护模块化设计与更换。
三、典型应用场景
- 工业电源防雷与瞬态抑制（SPD）模块。
- 高压直流/交流电源浪涌保护。
- 逆变器、变频器及电网接口保护。
- 电源输入端的一级或二级过压保护、以及需要兼顾高能量与较低寄生电容的场合。
四、选型与使用建议
- 工作电压匹配：直流工作电压 670V、交流工作电压 510V，应确保常态电压远低于压敏阈值以避免误触发。
- 考虑重击次数：长期反复的大浪涌会降低寿命，应根据应用场合评估所需的耐冲击次数与备用策略。
- 热管理与散热：静态功率 600mW 要求合理散热与环境温度控制，以免长期过热导致性能退化。
- 与其它防护元件配合：建议与熔断器、气体放电管或串联阻尼元件配合使用，改善极端冲击下的整体保护能力。
五、封装与可靠性
14D821K 采用径向引线封装，便于通孔装配与手工焊接。出厂经校验通过，适合工业级环境。安装时应避免过度挤压引线或高温焊接时间过长，确保机械及电气接触良好，以发挥最佳保护性能。
总结：14D821K 以其较高的能量承受能力、强浪涌电流规格和适度的寄生电容，适合用于高压电源与工业防雷浪涌保护设计。在选型与布局时注意工作电压余量、热管理和与其他防护器件的配合，可获得更可靠的保护效果。
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