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SMOV25S461MP датащи(PDF) 6 Page - Littelfuse |
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SMOV25S461MP датащи(HTML) 6 Page - Littelfuse |
6 / 6 page © 2014 Littelfuse, Inc. Specifications are subject to change without notice. Revised: 05/23/14 Varistor Products Thermally Protected Varistors > SMOV25S Series Rated AC Voltage (V M(AC)RMS) – MCOV ThisisthemaximumcontinuoussinusoidalRMSvoltage thatmaybeapplied.Thisvoltagemaybeappliedatany temperatureuptothemaximumoperatingtemperatureof thedevice. Maximum Non-Repetitive Surge Current (I TM) Thisisthemaximumpeakcurrentwhichmaybeapplied forasingle8/20µsimpulse,withratedlinevoltagealso applied,withoutcausingdevicefailure.Thepulsecan beappliedtothedeviceineitherpolaritywiththesame confidencefactor. Nominal Discharge Current (I N) Peakvalueofthecurrent,selectedbythemanufacturer, throughtheSPDhavingacurrentwaveshapeof8/20µs wheretheSPDremainsfunctionalafter15surges. Voltage Protection Rating (V PR) Aratingselectedfromalistofpreferredvaluesasgiven inUL1449andassignedtoeachmodeofprotection.The valueofVPRisdeterminedasthenearesthighestvalue takenfromUL1449tothemeasuredlimitingvoltage determinedduringthetransient-voltagesurgesuppression testusingthecombinationwavegeneratoratasettingof 6kV,3kA. UL 1449 AnUnderwritersLaboratorystandardcoveringthesafety requirementsforSurgeProtectiveDevicesintendedfor permanentlyconnected,cord-connectedanddirectplug-in applications. Limited Current Abnormal Over-voltage Test AnACover-voltageconditionappliedtoaSurgeProtective DeviceaccordingtoUL1449,Section39.4.Theshortcircuit currentislimitedbyseriesconnectedresistorsto10A, 5A,2.5A,0.5Aand0.125A.Theconditionismaintained for7hoursoruntilthedeviceundertestisdisconnected fromtheACsupplyorthecurrentortemperaturereaches equilibrium. Maximum Non-Repetitive Surge Energy (W TM) Thisisthemaximumratedtransientenergywhichmaybe dissipatedforasinglecurrentpulseataspecifiedimpulse duration,withtheratedRMSvoltageapplied,without causingdevicefailure. Nominal Voltage (V N(DC)) Thisisthevoltageatwhichthedevicechangesfromthe off(standbystate)totheon(clampingstate)andenters itsconductionmodeofoperation.Thevoltagevalueis usuallycharacterisedatthe1mApointandhasaspecified minimumandmaximumvoltagerange. Term Definitions Part Numbering System SMOV 25 S 321 N P DEVICE FAMILY Littelfuse Thermally Self Protected MOV DISC SIZE (mm) 25mm CERAMIC SHAPE S: Square 115V to 750V VM(AC)RMS M:With Isolated Monitored Switch N: Non Isolated Monitored Switch Design P: Lead-Free and RoHS compliant Xxxxx Option Codes LF9 SMOV25S321MP 1148 UL Recognized Component Mark Production Site Code Littelfuse Mark Part Number Production Date Dode (Year and Week) Part Marking System |
Аналогичный номер детали - SMOV25S461MP |
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Аналогичное описание - SMOV25S461MP |
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