ERZ-V20R391

Product Overview

Category: Electronic Component
Use: Voltage Dependent Resistor (VDR)
Characteristics: High surge capability, fast response time
Package: Radial leaded
Essence: Protects electronic circuits from voltage spikes
Packaging/Quantity: Bulk packaging, quantity varies

Specifications

Voltage Rating: 20V
Maximum Allowable Voltage: 17V
Clamping Voltage: 38V
Peak Current: 100A
Energy Absorption: 0.1J
Lead Material: Tin-plated copper

Detailed Pin Configuration

The ERZ-V20R391 has two radial leads for easy installation on a circuit board. The leads are designed for secure soldering and connection.

Functional Features

Provides overvoltage protection to sensitive electronic components
Fast response time to transient voltage spikes
High surge capability for reliable performance in harsh environments

Advantages and Disadvantages

Advantages: - Reliable protection against voltage surges - Fast response time - Suitable for various electronic applications

Disadvantages: - Limited energy absorption capacity - Requires careful consideration of clamping voltage for specific applications

Working Principles

The ERZ-V20R391 operates based on the principle of nonlinear resistance. When the voltage across the VDR exceeds its threshold, it conducts current, diverting the excess voltage away from the protected circuit.

Detailed Application Field Plans

The ERZ-V20R391 is commonly used in: - Power supplies - Telecommunication equipment - Industrial control systems - Consumer electronics

Detailed and Complete Alternative Models

ERZ-V10D220
- Voltage Rating: 10V
- Clamping Voltage: 18V
- Peak Current: 50A
ERZ-V14D431
- Voltage Rating: 14V
- Clamping Voltage: 24V
- Peak Current: 150A
ERZ-V25D271
- Voltage Rating: 25V
- Clamping Voltage: 40V
- Peak Current: 200A
ERZ-V30D471
- Voltage Rating: 30V
- Clamping Voltage: 50V
- Peak Current: 250A
ERZ-V33D561
- Voltage Rating: 33V
- Clamping Voltage: 55V
- Peak Current: 300A

In conclusion, the ERZ-V20R391 is a vital component in protecting electronic circuits from voltage spikes. Its fast response time and high surge capability make it suitable for a wide range of applications, although careful consideration of its limitations is necessary for optimal performance.

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Listen Sie 10 häufige Fragen und Antworten im Zusammenhang mit der Anwendung von ERZ-V20R391 in technischen Lösungen auf

What is ERZ-V20R391?
- ERZ-V20R391 is a type of varistor, also known as a voltage-dependent resistor, used to protect electronic circuits from overvoltage conditions.
How does ERZ-V20R391 work?
- ERZ-V20R391 works by changing its resistance in response to changes in voltage, effectively diverting excess current away from sensitive components.
What are the typical applications of ERZ-V20R391?
- ERZ-V20R391 is commonly used in surge protection devices, power supplies, and electronic equipment to safeguard against voltage spikes and transients.
What is the maximum voltage rating for ERZ-V20R391?
- The maximum voltage rating for ERZ-V20R391 is typically around 390V, making it suitable for low to medium voltage protection.
Is ERZ-V20R391 suitable for outdoor use?
- Yes, ERZ-V20R391 is often designed for outdoor use and can withstand environmental factors such as temperature variations and humidity.
What is the response time of ERZ-V20R391?
- The response time of ERZ-V20R391 is very fast, typically in nanoseconds, providing quick protection against voltage surges.
Can ERZ-V20R391 be used in automotive applications?
- Yes, ERZ-V20R391 can be used in automotive electronics to protect against voltage fluctuations and transient events.
Are there any specific mounting considerations for ERZ-V20R391?
- ERZ-V20R391 should be mounted close to the protected circuit to minimize lead length and reduce inductance, ensuring optimal performance.
What is the operating temperature range for ERZ-V20R391?
- The operating temperature range for ERZ-V20R391 is typically between -40°C to 85°C, allowing for reliable performance in various environments.
Does ERZ-V20R391 require any special handling during installation?
- ERZ-V20R391 should be handled with care to avoid mechanical damage, and proper soldering techniques should be followed to ensure electrical integrity.