B72220S0251K101

Product Overview

Category

The B72220S0251K101 belongs to the category of varistors, which are electronic components used to protect circuits from overvoltage conditions.

Use

This varistor is commonly used in electronic circuits to suppress voltage spikes and protect sensitive components from damage.

Characteristics

• High energy absorption capacity
• Fast response time
• Wide operating temperature range
• RoHS compliant

Package

The B72220S0251K101 varistor is typically available in a disc-shaped package with lead wires for easy integration into circuit designs.

Essence

The essence of this varistor lies in its ability to rapidly absorb and dissipate high-energy transient surges, thereby safeguarding connected electronic devices.

Packaging/Quantity

These varistors are usually packaged in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Voltage Rating: 250V
• Maximum Allowable Voltage: 415V
• Peak Current (8/20μs): 8000A
• Energy (10/1000μs): 2.5J
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The B72220S0251K101 varistor typically features two lead wires for connection to the circuit. The pin configuration may vary slightly based on the manufacturer's design, but the standard version includes two leads for soldering onto the circuit board.

Functional Features

• Overvoltage Protection: The varistor responds to overvoltage conditions by rapidly changing its resistance, diverting excess current away from sensitive components.
• Transient Suppression: It effectively suppresses transient voltage spikes, ensuring the stability and longevity of connected electronic devices.

Advantages and Disadvantages

Advantages

• Effective protection against voltage surges
• Fast response time
• Wide operating temperature range

Disadvantages

• Limited lifespan under continuous high-energy surge conditions
• Requires proper circuit design for optimal performance

Working Principles

The B72220S0251K101 varistor operates based on the principle of voltage-dependent resistance. When subjected to overvoltage conditions, the varistor's resistance decreases, allowing it to conduct excess current and protect the circuit.

Detailed Application Field Plans

Power Supplies

In power supply units, the varistor can be used to protect sensitive electronic components from voltage transients caused by lightning strikes or power grid fluctuations.

Industrial Equipment

Industrial machinery and equipment often utilize varistors to safeguard control circuits and sensitive electronics from voltage spikes generated by inductive loads or switching operations.

Consumer Electronics

In consumer electronics, such as televisions and home appliances, varistors are employed to provide surge protection, ensuring the longevity of the devices.

Detailed and Complete Alternative Models

• B72220S0251K501
• B72220S0251K901
• B72220S0251K201

These alternative models offer similar voltage ratings and characteristics, providing flexibility in component selection based on specific application requirements.

In conclusion, the B72220S0251K101 varistor serves as a crucial component in electronic circuit protection, offering reliable overvoltage suppression and transient voltage spike mitigation. Its wide range of applications and availability of alternative models make it a versatile choice for various electronic designs.

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