Suntan Zinc Oxide Varistor Cross Reference-7mm series

October 4, 2012 Views
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Suntan Technology Company Limited
----All Kinds of Capacitors 
 
Suntan Dipped Varistor ---Zinc Oxide Varistor can cross to HITECH, MAIDA, Littelfuse/Harris, PANASONIC, Epcos(SIOV), Joyin, thinking, FUJI .
 
Suntan offer different size of dipped varistor and the production volumn is keep increasing. We have size code 05D, 07D, 09D, 10D, 14D, 18D and 20D and each is with different voltage, varistor Voltage ranges from 18V to 1800V.
 
Attached the Zinc oxide Varistor-07D Series cross reference as below for your reference.

Metal Oxide Varistors

Cross Reference Guide

7mm Series

Suntan

HITECH

MAIDA

Littelfuse
Harris

PANASONIC (ZNR)

Epcos (SIOV)

TSV07D180L 

07D180K

D73ZOV110RA01

V18ZA1

ERZV07D180

S07K11

TSV07D220K 

07D220K

D73ZOV140RA01

V22ZA1

ERZV07D220

S07K14

TSV07D270K 

07D270K

D73ZOV170RA01

V27ZA1

ERZV07D270

S07K17

TSV07D330K 

07D330K

D73ZOV200RA01

V33ZA1

ERZV07D330

S07K20

TSV07D390K 

07D390K

D73ZOV250RA02

V39ZA1

ERZV07D390

S07K25

TSV07D470K 

07D470K

D73ZOV300RA02

V47ZA1

ERZV07D470

S07K30

TSV07D560K 

07D560K

D73ZOV350RA02

V56ZA1

ERZV07D560

S07K35

TSV07D680K 

07D680K

D73ZOV400RA03

V68ZA2

ERZV07D680

S07K40

TSV07D820K 

07D820K

D73ZOV500RA02

V82ZA2

ERZV07D820

S07K50

TSV07D101K

07D101K

D73ZOV600RA02

V100ZA3

ERZV07D101

S07K60

TSV07D121K

07D121K

D73ZOV750RA02

V120ZA1

ERZV07D121

S07K75

TSV07D151K

07D151K

D73ZOV950RA02

V150ZA1

ERZV07D151

S07K95

TSV07D181K

07D181K

D73ZOV121RA03

V180ZA1

ERZV07D181

S07K115

TSV07D201K

07D201K

D73ZOV131RA03

V130LA2

ERZV07D201

S07K130

TSV07D221K 

07D221K

D73ZOV141RA03

V140LA2

ERZV07D221

S07K140

TSV07D241K

07D241K

D73ZOV151RA03

V150LA2

ERZV07D241

S07K150

TSV07D271K

07D271K

D73ZOV181RA03

V175LA2

ERZV07D271

S07K175

TSV07D301K

07D301K

D73ZOV191RA03

 

ERZV07D301

 

TSV07D331K 

07D331K

D73ZOV211RA18

 

ERZV07D331

 

TSV07D361K

07D361K

D73ZOV231RA20

V230LA4

ERZV07D361

S07K230

TSV07D391K 

07D391K

D73ZOV251RA21

V250LA4

ERZV07D391

S07K250

TSV07D431K 

07D431K

D73ZOV271RA23

V275LA4

ERZV07D431

S07K275

TSV07D471K 

07D471K

D73ZOV301RA25

V300LA4

ERZV07D471

S07K300

TSV07D511K 

07D511K

D73ZOV321RA27

V320LA7

ERZV07D511

S07K320

TSV07D561K 

07D561K

D73ZOV361RA28

 

 

 

TSV07D621K

07D621K

D73ZOV391RA29

V385LA7

 

S07K385

TSV07D681K 

07D681K

D73ZOV421RA30

V420LA7

 

S07K420

More..Suntan VaristorSu  Suntan  zinc oxide varistor  7mm series  Dipped Varistor  TSV  

Suntan Varistor from Suntan

February 17, 2012 Views
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Suntan Technology Company Limited
----All Kinds of Capacitors

A varistor is a type of resistor with a significantly non-ohmic current-voltage characteristic. Which have symmetrial voltage-current characteristics and unparalleled large peak current capability are used for absorption of  transient voltage, suppression of pulse noise and circuit voltage stabilization.

The most common type of varistor is the Metal Oxide Varistor (MOV). This contains a ceramic mass of zinc oxide grains, in a matrix of other metal oxides (such as small amounts of bismuth, cobalt, manganese) sandwiched between two metal plates (the electrodes). The boundary between each grain and its neighbour forms a diode junction, which allows current to flow in only one direction. The mass of randomly oriented grains is electrically equivalent to a network of back-to-back diode pairs, each pair in parallel with many other pairs.

Suntan's MOV is exactly TSV series, including different diameters like 05D, 07D, 10D, 14D and 20D. Common packing is Bulk, Ammo and Tape&Reel Packing are also available upon special request.

Features:
1. Low leakage current
2. Excellen voltage ratio
3. Wide voltage
4. Fast response time
5. High stabilization for circuit voltage
6. Unparalleled absorption

Suntan The Working Principle Varistor

August 5, 2011 Views
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Suntan Technology Company Limited
----All Kinds of Capacitors

Varistor is one kinds of transient voltage suppression devices which can be used instead of transient suppression diodes, zener diode and capacitor combination. Varistor IC and other devices can protect the circuit, to prevent electrostatic discharge, surges and other transient current (such as lightning, etc.) the damage caused by them. Simply use varistors and connected to the protected circuit IC or device, when the voltage value above a certain moment, the varistor resistance decreased rapidly, conducting high current, thereby protecting the IC or electrical equipment; when the voltage is lower than the varistor voltage value, the varistor resistance high, almost open, and thus will not affect the device or the normal operation of electrical equipment.

The Working Principle Varistor

November 30, 2010 Views
Comments 0

Suntan Technology Company Limited
---All Kinds of Capacitors

Varistor is one kinds of transient voltage suppression devices which can be used instead of transient suppression diodes, zener diode and capacitor combination. Varistor IC and other devices can protect the circuit, to prevent electrostatic discharge, surges and other transient current (such as lightning, etc.) the damage caused by them. Simply use varistors and connected to the protected circuit IC or device, when the voltage value above a certain moment, the varistor resistance decreased rapidly, conducting high current, thereby protecting the IC or electrical equipment; when the voltage is lower than the varistor voltage value, the varistor resistance high, almost open, and thus will not affect the device or the normal operation of electrical equipment.

Su Suntan What is a Varistor?

January 30, 2009 Views
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Suntan Technology Company Limited
---All kinds of Capacitors

A varistor is a type of resistor with a significantly non-ohmic current-voltage characteristic. The name is a portmanteau of variable resistor*, which is misleading since it is not continuously user-variable like a potentiometer or rheostat, and is not a resistor but in fact a capacitor. Varistors are often used to protect circuits against excessive voltage by acting as a spark gap.

The most common type of varistor is the metal oxide varistor, or MOV. This contains a mass of zinc oxide grains, in a matrix of other metal oxides, sandwiched between two metal plates (the electrodes). The boundary between each grain and its neighbour forms a diode junction, which allows current to flow in only one direction. The mass of randomly oriented grains is electrically equivalent to a network of back-to-back diode pairs, each pair in parallel with many other pairs. When a small or moderate voltage is applied across the electrodes, only a tiny current flows, causes by reverse leakage through the diode junctions. When a large voltage is applied, the diode junctions break down because of the avalanche effect, and a large current flows. The result of this behaviour is a highly nonlinear current-voltage characteristic, in which the MOV has a high resistance at low voltages and a low resistance at high voltages.

If the size of the transient pulse (often measured in joules) is too high, the device may melt, or otherwise be damaged. For example, a nearby lightning strike may permanently damage a varistor.

Important parameters for varistors are response time (how long it takes the varistor to break down), maximum current and a well-defined breakdown voltage. When used in communications lines (such as phone lines used for modems), high capacitance is undesirable since it absorbs high frequency signals, thereby reducing the available bandwidth of the line being protected.

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