(Taping code is to be added at the end of model number.) The “left-hand” or the most significant coloured band is the band which is nearest to a connecting lead with the colour coded bands being read from left-to-right as follows: It's similar to the previous system, the only difference is the number of significant digits: the first three numbers will tell us the significant digits, and the fourth will be the multiplier, indicating the power of ten to which the three significant digits must be multiplied (or how many zeros to add). ... Varistor–non-linear component where resistance changes with applied voltage. 07D180K: D73ZOV110RA01: V18ZA1 ERZV07D180: S07K11 22; 07D220K D73ZOV140RA01; The radial leaded disc type is the most common version. The capacitor on the left is of a ceramic disc type capacitor that has the code 473J printed onto its body. Metal-oxide varistors (MOVs) are available in a variety of form factors and sizes for a broad range of applications. Taping Code Tolerance of Nominal Varistor Voltage K = ±10% Nominal Varistor Voltage (Example. . An MOV is a Metal Oxide Varistor. The maximum energy within the varistor voltage change of ±10% when one impulse of 10/1000μs or 2ms is applied. A varistor is an electronic component with an electrical resistance that varies with the applied voltage. Please check on google You can try PF7004, MP352, MP502, PF7000, BYP60A6 The process of fabricating a Littelfuse Varistor is illustrated in the flow chart of Figure 7. Metal Oxide Varistors (MOV) Part Number Cross Reference Guide 5mm Series Tel/Fax: +86 (0)769 82827329 Skype: topdiode Email: info@topdiode.com Website: www.topdiode.com. You can use the number of bands and the colors along with the charts below to determine the value and tolerance of the resistors. Metal-Oxide Varistors (MOVs) Radial Lead Varistors > LA Varistor Series Part Number Branding Model Size Disc Dia. Then the 4 = 1 st digit, the 7 = 2 nd digit, the 3 is the multiplier in pico-Farads, pF and the letter J is the tolerance and this translates to: 47pF * 1,000 (3 zero’s) = 47,000 pF, 47nF or 0.047uF the J indicates a tolerance of +/- 5%. Varistors are voltage dependent, nonlinear devices which have an electrical behavior similar to back-to-back Zener diodes. You can use Varistors V350K14 or V350K20 these have approximately the same current and Vrms parameter. When the above information is available, these charts offer basic application guidelines: Basics What is a Littelfuse MOV? Withstanding Surge Current The maximum current within the varistor voltage change of ±10% with the standard impulse current (8/20μs) applied one time. The 4-digit code is used for marking precision surface mount resistors. Diode T25-4-D9 is a high Current Rectifier known as Press-fit Rectifier Diode. Varistor Voltage Temp. You can use also V420k10 or V420K14(Vrms=420). Multilayer Varistors Calculating Resistor Values. The 4-digit code. Feel free to make use of our favorite Resistor Color Code Guide, available below. 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. I have no more idea about this type of diode. Right click for a higher-definition view. The starting material may differ in the composition of the additive oxides, in order to cover the voltage range of product. The Resistor Colour Code system is all well and good but we need to understand how to apply it in order to get the correct value of the resistor. Topdiode VAR Series MAIDA Littelfuse/Harris PANASONIC(ZNR) Epcos(SIOV) 18. ( MOVs ) radial Lead Varistors > LA Varistor Series Part number Branding model Size disc.... 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