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Metal Oxide Varistors

Metal Oxide Varistors
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Metal Oxide Varistors

Product catalog summary
Overview: This document serves as a comprehensive guide on Metal Oxide Varistors (MOVs) cataloged under E1006F for 2023. It covers product specifications, technical notes, application examples, and safety standards.
Product Specifications: The document details various MOV series, including TNR V, SV, H, and GF. Key specifications include varistor voltage (15 to 1800V), surge current withstand (250 to 10000A), and surge energy withstand (5 to 40J). These MOVs are designed for high reliability and conform to international safety standards like UL, CSA, and VDE.
Precautions and Guidelines: Emphasis is placed on adhering to specified operating conditions to prevent varistor failure. Precautions include avoiding excessive temperatures, humidity, corrosive environments, and ensuring proper soldering techniques. Safety measures such as using earth leakage breakers and fuses are recommended.
Technical Terms: Definitions are provided for terms like varistor voltage, maximum allowable voltage, clamping voltage, rated wattage, and peak current, which are crucial for understanding varistor capabilities.
Safety Standards: The document outlines applicable safety standards for the V and SV series, including UL1449, CSA, VDE, and IEC 62368-1, ensuring compliance with international regulations.
Application Examples: MOVs are used for transient voltage suppression and protection of electronic instruments, telephone systems, and relay contacts. They are effective in automotive applications and digital circuits.
Packaging and Part Numbering: Details on lead forming, taping specifications, and minimum packaging quantities are provided. The part numbering system is explained, highlighting the significance of each component in the code.
Specifications: Key specifications include varistor voltage, maximum allowable voltage, maximum peak surge current, energy rating, rated wattage, maximum clamping voltage, capacitance, voltage temperature coefficient, and insulation.
Test Conditions: Tests include high and low temperature storage, damp heat, temperature cycling, high temperature operating, and damp heat operating.
Mechanical Characteristics: Tests cover resistance to soldering heat, solderability, lead pull and bend strength, and vibration.
Pulse Life Time Ratings: Graphs illustrate impulse durations and peak pulse currents for different varistor types.
Features: MOVs exhibit little scatter under overvoltage, upgraded environmental characteristics, non-flammable and halogen-free coating resin, and recognition by UL, CSA, and VDE.
Applications: MOVs protect semiconductors from overvoltage, electronic instruments from lightning surges, and absorb on-off surges from motors and relays.
Technical Note on Ceramic Varistors TNR TM: Guidelines for installation, selection for external lightning pulses, and on-off pulse from relay are provided. The document emphasizes the importance of wiring length on clamping voltage and provides application scenarios.
Key Takeaways: The document highlights the significance of wiring length in varistor applications due to its impact on clamping voltage and provides practical examples of varistor usage in various systems.
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Catalog excerpts

Metal Oxide Varistors-1

CERAMIC CAPACITORS VARISTORS FILM CAPACITORS CHOKE COILS CAT.NO.E1002C / E1006F / E1003Z / E1008X

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Metal Oxide Varistors-2

METAL OXIDE VARISTOR TNRTM Production Guide Series Table Precautions and Guidelines Group Chart / Part Numbering System Technical Terms on Varistors Safety Standards Lead Forming Specifications Taping Specifications (Disk Type) Packaging Minimum Packaging Quantity Product Specifications Disk Type TNR V Series Pulse Life Time Ratings TNR SV Series TNR H Series TNR GF Series Technical Note, Application Examples Technical Note Application Examples

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Metal Oxide Varistors-3

METAL OXIDE VARISTORS TNRTM Surge current withstand (A) SERIES TABLE Excellent responsiveness and high reliability Products conforming to overseas safety standards (UL, CSA, VDE) Ideal for general use and absorbing various kinds of surges Highly flame-retardant exterior material (halogen free) is used Suppresses burning and scattering of exterior materials even if they are destroyed due to application of excessive voltage Product with improved safety Large surge energy withstand (5 to 40J) Broad operating temperature range (between -40 and +125°C) Highly resistant to thermal shock (between -40...

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Metal Oxide Varistors-4

METAL OXIDE VARISTORS TNRTM The circuits described as examples in this catalog and the "delivery specifications" are featured in order to show the operations and usage of our products, however, this fact does not guarantee that the circuits are available to function in your equipment systems. We are not in any case responsible for any failures or damage caused by the use of information contained herein. You should examine our products, of which the characteristics are described in the "delivery specifications" and other documents, and determine whether or not our products suit your requirements...

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Metal Oxide Varistors-5

METAL OXIDE VARISTORS TNRTM GROUP CHART, P/N SYSTEM TNR is a our metal oxide varistor metal oxide varistor having steep non-linear V-I characteristics and high discharge current capability, as follows: ◆Metal oxide varistor Features 1. Excellent transient voltage suppression 2. High discharge current capability 3. Wide range of voltage ratings 4. Symmetrical V-I characteristics (Non Polarity) 5. Fast response 6. Steady operation for repeating surge 7. Low temperature coefficient 8. High reliability 9. UL recognized 10. CSA recognized Varistor characteristics 1. Electronics instrument protection...

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Metal Oxide Varistors-6

METAL OXIDE VARISTORS TNRTM Technical Term TECHNICAL TERMS ON VARISTORS Varistor Voltage Voltage across the varistor measured at CmA DC. C = 0.1 or 1.0 as specified. Max. Allowable Voltage (ACrms) Maximum continuous sinusoidal RMS voltage which may be applied. Maximum continuous DC voltage which may be applied. Maximum Clamping Voltage Peak voltage across the varistor, measured under conditions of a specified peak impulse current and specified waveform (8/20µs) applied 1 time. Rated Wattage Maximum power that can be applied within the specified ambient temperature. Maximum Peak Current Surge...

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Metal Oxide Varistors-7

METAL OXIDE VARISTORS TNRTM SAFETY STANDARDS SAFETY STANDARDS for V Series ◆TNR V Series / Recognized safety standards Standards UL1449 Category Name VZCA2 (USA) VZCA8 (Canada) Varistor Voltage Ranges Type 5-Component Surge Protective Devices(SPD), Varistor Type V Series Varistor DIN EN 61051-1:2009-04 IEC 61051-1:2007-04 61051-2:1991-01 61051-2(ed.1);am1:2009-05 61051-2-2:1991-01 Surge Protective Devices Note(1) File number of CQC varies according to a part number. Pleasee refer to us. Part Number *Recognized marking *The safety standards may be changed without a notice. Please refer for the...

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Metal Oxide Varistors-8

METAL OXIDE VARISTORS TNRTM SAFETY STANDARDS Maximum Allowable Voltage AC Rated Voltage (Vrms) ◆Application Notes 1) CSA regulate "Maximum Rating Fuse" for using Varistor to "Audio, Video and Similar Electronic Equipment" as below Maximum Peak Current 8/20µs, 1 time(A) Up to 500 501~2000 2001~6000 Over 6000 Maximum Rating of Fuse (A) 3 5 10 Not specified 2) "Rated Voltages" are specified for UL/CSA recognized components besides Maximum Allowable Voltage because of conforming to the Standby Current specified in safety standards. In case of making an application to UL/CSA approval for equipment with...

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Metal Oxide Varistors-9

METAL OXIDE VARISTORS TNRTM SAFETY STANDARDS SAFETY STANDARDS for SV Series ◆TNR SV Series / Recognized safety standards Standards UL1449 Category Name Varistor Voltage Ranges Surge Protective Devices Type 5-Component Surge Protective Devices(SPD), Varistor Type SV Series Note(1) File number of CQC varies according to a part number. Pleasee refer to us. *Recognized marking *The safety standards may be changed without a notice. Please refer for the latest certificate to us. Please refer to each certification organization for the inquiry about the contents of the safety standards. Product specifications...

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Metal Oxide Varistors-10

METAL OXIDE VARISTORS TNR TM ●This LEAD FORMING SPECIFICATIONS Specifies the lead forming specifications for Disk Type (V, H series) Lead style code D T BDS refer to each spec. refer to each spec. BCS refer to each spec. refer to each spec. BCS refer to each spec. refer to each spec. ◆PART NUMBERING SYSTEM (BULK) Code Category T Metal Oxyde Varistor TNR Category Product Form Product Form Disk Type Varistor Voltage The first two digits are sighificant figures and the third one denote the number of following zeros. Varistor Voltage Code VSV HGF Code K Code Varistor Bulk Forming Code Voltage Tolerance...

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Metal Oxide Varistors-11

METAL OXIDE VARISTORS TNRTM TAPING SPECIFICATIONS Specifies taping specifications for varistors which have normal disk diameter of 5 to 15mm and nominal varistor voltage of 15 to 510V. ◆PART NUMBERING SYSTEM Code Category T Metal Oxyde Varistor TNR Category Product Form Product Form Disk Type Varistor Voltage The first two digits are sighificant figures and the third one denote the number of following zeros. Varistor Voltage Varistor Taping Code Voltage Tolerance Series V Series H Series Varistor Volt. Tolerance Feed hole pitch 12.7mm Code TFA (T15) TBA (T25) TEA (T1) TFA (T15) TAA (T2) TBA (T25)...

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