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ProductDescription MOV20D621K Metal Oxide Varistor Thakor VCRROverviewThe MOV20D621K is a highperformance metaloxide varistor MOV manufactured by Thakor VCRR series It is designed toprovide reliable overvoltage protection in electrical and electronic circuitsby clamping transient voltage surges This component is commonly used invarious applications including consumer electronics industrial equipment andpower systems to safeguard sensitive devices against voltage spikesKeyFeaturesVoltage RatingVaristor Voltage VmA 620V 10Maximum Continuous VoltageAC RMS 385VDC 505VEnergy HandlingHigh energy absorption capacity capable of withstanding transient surges up to 170 JoulesResponse TimeExtremely fast response time typically less than 25 nanoseconds ensuring rapid suppression of voltage spikesOperating RangeWide operating temperature range from 40C to 85C making it suitable for diverse environmentsPackage SizeDisk diameter 20mmCompact and easytomount radial lead configurationCertificationUL VDE and CSAapproved for safety compliance ensuring quality and reliabilityApplicationsSurge ProtectionUsed in AC power lines power strips and surge protectors to prevent damage caused by lightning and power surgesElectronic Circuit ProtectionSafeguards sensitive components in consumer electronics industrial machinery and communication systemsPower Supply SystemsProtects transformers power converters and inverters from overvoltage conditionsMotor ProtectionShields motors in HVAC pumps and other industrial equipment from voltage fluctuationsBenefitsHigh ReliabilityEnsures longterm stability and consistent performance under heavy transient conditionsCompact DesignSpacesaving radial lead package simplifies circuit integrationCostEffective ProtectionReduces maintenance costs and prevents equipment downtime by mitigating surge damageFast Response TimeImmediate clamping action minimizes the risk of damage to downstream componentsEqual orEquivalent PartsIf youre looking for alternative brands orequivalents to the MOV20D621K here are some optionsLittelfusePart Number V20E385PVoltage rating and performance closely match the MOV20D621KEPCOS TDKPart Number B72220S0381K101Widely used for similar surge protection applicationsVishayPart Number V385LA20PHighquality alternative for overvoltage suppressionBournsPart Number MOV20D385KSuitable for applications requiring robust surge protectionPanasonicPart Number ERZV20D621Offers similar specifications and durabilityConclusionThe MOV20D621K by Thakor VCRR series is anexcellent choice for protecting electronic systems against voltage transientsWith its robust specifications wide application range and high reliabilityit ensures optimal performance and safety for sensitive equipment If theThakor brand is unavailable equivalent parts from Littelfuse EPCOS VishayBourns or Panasonic are reliable alternatives