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Ⅰ.Overview of product

The B72207S2321K101 is a high-performance varistor (Metal Oxide Varistor, MOV) developed by EPCOS - TDK Electronics, categorized under Circuit Protection products. As part of the AdvanceD series, it is specifically designed to protect electronic circuits from voltage surges and transient overvoltages, which are common threats to the stability and lifespan of electronic devices. With its robust surge-handling capability, wide voltage tolerance, and reliable operating performance across a broad temperature range, this through-hole mounted varistor serves as a critical protective component in various electrical and electronic systems, ensuring equipment safety and minimizing damage caused by voltage spikes.

Ⅱ.Core parameter

Category:Circuit Protection,Varistors, MOVs

Manufacturer:EPCOS - TDK Electronics

Series:AdvanceD

Packaging:Bulk

Part Status:Active

Maximum AC Volts:320 V

Maximum DC Volts:420 V

Varistor Voltage (Min):459 V

Varistor Voltage (Typ):510 V

Varistor Voltage (Max):561 V

Current - Surge:1.75 kA

Energy:32J

Capacitance @ Frequency:90 pF @ 1 kHz

Operating Temperature:-40°C ~ 105°C (TA)

Mounting Type:Through Hole

Ⅲ.Main characteristics

Strong Surge Protection:Boasts a surge current handling capacity of 1.75 kA and an energy absorption rating of 32J, enabling it to effectively clamp transient overvoltages and divert surge currents away from sensitive components, safeguarding circuits from damage.

Wide Voltage Compatibility:Supports a maximum AC voltage of 320 V and a maximum DC voltage of 420 V, with a varistor voltage range (min to max) of 459 V to 561 V (typical 510 V), making it suitable for use in a variety of AC and DC electrical systems with different voltage requirements.

Stable Capacitance Performance:Features a capacitance of 90 pF at 1 kHz, ensuring consistent electrical characteristics under normal operating conditions and minimizing interference with the performance of the protected circuit.

Through-Hole Mounting Design:Utilizes a through-hole mounting type, which provides secure and durable installation on printed circuit boards (PCBs) and is well-suited for applications that require strong mechanical stability and ease of assembly in traditional PCB manufacturing processes.

Ⅳ.Application field

Industrial Electrical Equipment:Used in industrial control panels, motor drives, and power distribution systems to protect against voltage surges caused by equipment switching or grid fluctuations, ensuring the continuous operation of critical industrial machinery.

Telecommunications Infrastructure:Employed in telecom equipment like base stations, routers, and switchgear to protect sensitive communication components from surges induced by lightning or power line disturbances, maintaining stable signal transmission.

Power Supply Systems:Incorporated into AC-DC power supplies, UPS (Uninterruptible Power Supply) units, and battery chargers to prevent surge-related damage to power conversion components, ensuring reliable power delivery to connected devices.

Lighting Systems:Applied in LED lighting drivers, street lighting controllers, and industrial lighting systems to safeguard the electronic drivers from power surges, ensuring consistent lighting performance and preventing premature failure of lighting fixtures.

Ⅴ.Summary

In summary, the B72207S2321K101 varistor from EPCOS - TDK Electronics is a highly reliable circuit protection component that excels in surge handling, voltage compatibility, and environmental adaptability. As part of the AdvanceD series, it meets the demanding protection needs of diverse applications across industrial, consumer, telecommunications, power supply, and lighting sectors. Its robust performance, stable characteristics, and trusted manufacturing background make it a practical choice for engineers seeking to enhance the safety and durability of electronic systems, effectively mitigating the risks posed by voltage surges and transient overvoltages.