SMA5J20-E3/61

Product Overview

The SMA5J20-E3/61 belongs to the category of TVS (Transient Voltage Suppressor) diodes. These diodes are designed to protect sensitive electronics from voltage spikes and transient surges. The SMA5J20-E3/61 is commonly used in various electronic devices and systems to safeguard against overvoltage events. Its characteristics include high surge capability, low clamping voltage, and fast response time. The diode is typically packaged in a small, surface-mount package and is available in tape and reel packaging with a specific quantity per reel.

Specifications

• Voltage Rating: 20V
• Peak Pulse Power: 500W
• Package Type: SMA (DO-214AC)
• Polarity: Unidirectional
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMA5J20-E3/61 features a standard SMA package with two pins. Pin 1 is the cathode, and pin 2 is the anode.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltage spikes to a safe level.
• Fast Response Time: Rapid reaction to transient events, providing quick protection to the connected circuitry.
• High Surge Capability: Able to withstand high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Effective protection against voltage transients
• Small form factor for easy integration into circuit designs
• Fast response time ensures minimal impact on the protected circuit

Disadvantages

• Unidirectional protection only
• Limited to a maximum voltage rating of 20V

Working Principles

The SMA5J20-E3/61 operates by diverting excessive voltage away from the protected circuit when a transient event occurs. When the voltage exceeds the diode's clamping voltage, it conducts heavily, shunting the excess current to ground and limiting the voltage across the protected circuit.

Detailed Application Field Plans

The SMA5J20-E3/61 is widely used in applications such as: - Consumer electronics - Telecommunication equipment - Industrial control systems - Automotive electronics - Power supplies

Detailed and Complete Alternative Models

• SMA5J24A-E3/61: Similar specifications with a higher voltage rating of 24V
• SMA5J15A-E3/61: Lower voltage rating of 15V for more sensitive applications
• SMA6J20A-E3/61: Higher peak pulse power of 600W for increased surge protection capability

In conclusion, the SMA5J20-E3/61 TVS diode offers effective transient voltage suppression in a compact package, making it suitable for a wide range of electronic applications.

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