Test Voltage : Rated Voltage Time : 30±5 minutes through a suitable resistor 1MΩ. The maximum DC voltage that can be applied continuously in the specified environmental temperature range. Marking Code VDE X XXX H Y XXXKDXXX ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ① Brightking Logo ② Varistor Voltage ③ UL Accreditation Logo ④ CSA Accreditation Logo ⑤ VDE Accreditation Logo ⑥“J”is High Surge Code, no“J”is Standard Surge ⑦ Disk Size ⑧“H”is Halogen Free Code, no“H”is Halogen Varistors provide over voltage protection to electrical and electronic circuits in contrast to circuit breakers or fuse which provide protection to circuits from over current. The maximum energy within the varistor voltage change of ±10% when one impulse of 10/1000μs or 2ms is applied. Please see the attached file. Varistors act as capacitors too, but the values generally differ from what would be expected of a capacitor with the same marking. Three figure SMD resistor marking code . Artikelnummer / part number :Datum / Date :2006-06-29Bezeichnung :description :DIAM:10MMROHS CompliantA Elektrische Eigenschaften / electrical properties : datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, … Varistor Voltage (@ 1mA DC) the codes of 2 leaded length Blank Bulk Product Type TVR THINKING Varistor series 241 Body Size 07 Φ 7mm 10 Φ10mm 14 Φ14mm Φ20mm Varistor Voltage(V 1mA) 180 18x100V=18V 24x101V=240V 102 10x102V=1000V Tolerance of 1mA K ±10% R S Straight lead, epoxy coating Y kink lead, epoxy coating T L kink lead, epoxy coating Internal Control Code 01~ZZ What is the fuse marking according to IEC standard 127 and how does this translates to Littelfuse's 5x20mm fuse offerings? Many users ask us that MOV says marking as 470V so how is it suitable for 220V application. So its … Metal Oxide Varistor B72230M ***M401 Thermal Protective Varistor MT30*** PPD VAR PD 2020-01-10 Please read Cautions and warnings and Page 3 of 10 Important notes at the end of this document. Littelfuse_5x20mm-IEC-Fuse-Cap-Marking_guide.pdf I am quite curious about this component and would like to seek further advise from anyone of you who have been using the varistor component. Dimensional drawing in mm Type Name Ordering Code MT30K150M4 B72230M0151M401 MT30K320M4 B72230M0321M401 MT30K385M4 B72230M0381M401 Find the number code on the part and check to see if the device capacitance is a match. Marking Code VDE X XXX H Y XXXKDXXX ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ ⑨ ⑩ ① Brightking Logo ② Varistor Voltage ③ UL Accreditation Logo ④ CSA Accreditation Logo ⑤ VDE Accreditation Logo ⑥“J”is High Surge Code, no“J”is Standard Surge ⑦ Disk Size ⑧“H”is Halogen Free Code, no“H”is Halogen One of the problems with SMD components is the lack of a marking standard, but most will always have capacitance and voltage rating + a manufacturer code or series number. Look around at likely parts on their web site. 1 6 0 M a x . Varistors, also called metal-oxide varistors (MOVs), are used to protect sensitive circuits from a variety of overvoltage conditions. 5x20mm IEC Fuse Marking. "A" is a metal oxide varistor, a device that protects a circuit from excessive voltage and voltage spikes from the mains supply. NO. 66 Max. Ordering code Marking on varistor Marking on label Sometimes a 3 digit coding system similar to smd resistor coding is used. VDR Varistor 05D SERIES MARKING CODE 1SongLong Lishang Logo 2Disk Size 3CUL Accreditation Logo 4“Y” &“M” Product Line Code 5Varistor Voltage 6VDE Accreditation Logo 7Energy and frequency of combined wave “J” is High Surge Code,not “J” is Standard Surge “H” is … reading varistor codes Hi Everyone, I am currently trying to understand how to used a Triacs for AC control application and come across this component which is call a varistor. The 4-digit code. 1 6 0 M a x . Varistor Voltage Temp. Manufacturers logos and URL Toronto, 2019 edition ... Si-Varistor Silicon voltage depending resistor Si-npn Silicon npn transistor Si-n/p Silicon npn and pnp transistors area Potentiometers values are often marked with a readable string indicating the total resistance, such as "100k" for a 100 kOhm potentiometer. Affected are the B721*, B722*, B723* and B726* series of varistors. Affected products . For example: MDC Z131 20UL Where: MDC - Company Initials Z - Zinc Oxide Varistor 131 - AC Voltage rating (130VAC) 20 - Rating code UL - UL recognition, if applicable Due to updated CSA standard, the marking will be changed on EPCOS varistors and labels that are produced from October 1, 2019. 10D470K Varistor SPECIFICATIONS. Coefficient V 1mA@125℃-V 1mA@25℃ V 1mA@25℃ × 1 100 The 4-digit code is used for marking precision surface mount resistors. A number of different coding systems are used, but the most widely used utilises three numbers consisting of two significant figures and a multiplier. When the resistors are marked, figures are used rather than the colour codes used in leaded components. This one clamps at 150v ac or about 220v dc and is usually located after the fuse between Live and Neutral, (Hot and Cold in America), in a power supply. Let me explain The AC mains you get said 220V RMS. Unless specially, specified, temperature, relative humidity are 5 °C to 35 °C, 45 to 85% RH respectively. Timescope M etal O xide V aristOrsWORLD PRODUCTS INC. 19654 Eighth Street East, Sonoma, CA 95476 | Phone (707) 996-5201 | Fax (707) 996-3380 | www.worldproducts.comRev. Sample schematic diagram 17. 1.5 Equivalent circuits Figure 5 shows the simplified equivalent circuit of a metal oxide varistor. In this system the first digits indicate the … 200pcs/bag 2bags/box Frequency : 1±0.1kHz Test Voltage : 1±0.2 V(rms) 7.4 Insulation Resistance(I.R.) VDR Metal Oxide Varistors Standard ADDITIONAL RESOURCES ORDERING INFORMATION The varistors are available in a number of packaging options: •Bulk • On tape and reel • On tape in ammopack (fanfold) The basic ordering code for each option is given in tables titled Varistors on Tape on Reel, Varistors on Tape in Ammopack and Varistors in Bulk. General technical information Please read Important notes Page 5 of 22 and Cautions and warnings. Marking codes. Varistor Voltage Test Methods: Environmental conditions under which every measuring is done without doubt on the measuring results. Withstanding Surge Current The maximum current within the varistor voltage change of ±10% with the standard impulse current (8/20μs) applied one time. 7.3 Capacitance and Tolerance Meet item 3. 158 159 Electrical Characteristics 160 161 10-V Series 162 Part No. SMD-code marking style 16. 66 Max. Then just rule out what could be what. Si-Varistor Silicon voltage depending resistor Si-npn Silicon npn transistor Si-n/p Silicon npn and pnp transistors area ... A weekly updated online database that includes now more 240.000 marking codes for different SMD and leaded, passive and active electronic components like fuses, diodes, thyristors, transistors and integrated circuits. Also known as a voltage-dependent resistor (VDR), it has a nonlinear, non-ohmic current–voltage characteristic that is similar to that of a diode.In contrast to a diode however, it has the same characteristic for both directions of traversing current. "B" is a 4.7nF capacitor rated at 2kV. So peak voltage is 308V = 220V x 1.4 (VPeak = VRMS × √2) This MOV 10D471K is having 300V AC RMS rating. AVAILABLE ON REQUEST (CUSTOM DESIGNS): For an interim period shipments can include varistors with old and new markings. It could be a MOV (metal oxide varistor), but other component types are possible too. 7.2. ITEM Main Material Coating Material Marking Appearance Zinc Oxide Epoxy Resin GNR, Part number, UL, CSA(or CUL) and VDE recognized component mark, Date code High Energy types are available in the 25, 32, 40, 60 and 80 mm versions. 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