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For overvoltage protection/lightning protection Metal oxide varistors (MOVs) are used in nearly all electrical equipment and are the most commonly employed surge-absorbing (overvoltage protection) devices. The TR series high-performance varistors are widely used in next-generation communication systems (5G), power instruments, meters, lighting sources, switching power supplies, and other applications that demand high temperatures, high energy levels, and operate in confined spaces with challenging environmental conditions.

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Product Description

Metal oxide varistors (MOVs) are used in nearly all electrical equipment and are the most commonly employed surge-absorbing (overvoltage protection) devices. The TR series high-performance varistors are widely used in next-generation communication systems (5G), power instruments, meters, lighting sources, switch-mode power supplies, and other applications that demand high temperatures, high energy levels, and operate in confined spaces with challenging environmental conditions.

Key Features and Advantages
• Voltage-sensitive: It hardly conducts and remains insulating below the breakdown voltage; once the voltage exceeds the breakdown threshold, it instantly becomes conductive, and its resistance drops sharply.
• The response speed is ultra-fast—slightly slower than that of TVS devices, but significantly faster than fuses and NTCs.
• It has high energy absorption capacity and is inexpensive; under the same cost conditions, its surge energy absorption capability far exceeds that of TVS devices.
• Both AC and DC can be used; AC220/380V input is the most commonly used.
• Small size, standardized selection for 7D, 10D, 14D, and 20D series.

Product Introduction

Series	Chip diameter ( mm)	Application scenarios	Product Features		Main product parameters
TR Series Varistor	5.0~32.0	Switch-mode power supply input port Inverter, UPS, servo Home appliances, lighting, industrial control power supplies · Charging piles, electricity meters, Communication power supply All equipment requiring lightning protection and overvoltage protection	Connected in parallel in the circuit, it is specifically designed to absorb high voltage, provide lightning protection, and clamp the voltage to prevent downstream components from being damaged by breakdown.		Threshold voltage Varistor Voltage UN(V)1mA	18~1800
					Maximum Limit Voltage Max Clampin Yoltage Uc(V)	38~2970
					Energy Max. Energy (J) 10/1000us	2.1~1900
					Maximum surge current Imax (A) (8/20μs)	300–5000 (40 hits)
					Maximum rated power Maximum Power Rating @ 25℃ Pmax (W)	0.1~1.2
Structural shape
Weld-sealed type				Sealed type

Application Example

Keywords:

advanced sealed thermistor exporters

Sensitive components

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Category:

TR Series Varistors

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Sealed type

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