SMA5J20CHE3/61

Product Overview

Category

The SMA5J20CHE3/61 belongs to the category of TVS (Transient Voltage Suppressor) diodes.

Use

It is used for surge protection in electronic circuits, particularly in applications where protection against transient overvoltage events is required.

Characteristics

• Voltage Suppression: Provides protection against voltage spikes and transients.
• Fast Response Time: Rapidly clamps voltage surges to protect sensitive components.
• Low Leakage Current: Minimizes power consumption during normal operation.
• High Surge Current Capability: Can handle high surge currents without degradation.

Package

The SMA5J20CHE3/61 is available in a SMA package, which is a surface-mount package designed for easy installation on printed circuit boards.

Essence

The essence of SMA5J20CHE3/61 lies in its ability to safeguard electronic circuits from voltage transients, ensuring the reliability and longevity of the connected devices.

Packaging/Quantity

The product is typically supplied in reels or tubes, with quantities varying based on the manufacturer's specifications.

Specifications

• Standoff Voltage: 20V
• Peak Pulse Power: 500W
• Breakdown Voltage: 22.2V
• Maximum Clamping Voltage: 32.4V
• Operating Temperature Range: -55°C to 150°C
• Package Type: SMA
• Polarity: Unidirectional

Detailed Pin Configuration

The SMA5J20CHE3/61 typically has two pins, with the pinout configuration as follows: 1. Anode (A) 2. Cathode (K)

Functional Features

• Transient Voltage Suppression: Effectively clamps transient voltages to safe levels, protecting downstream components.
• Fast Response Time: Rapidly responds to voltage surges, minimizing the risk of damage to sensitive electronics.
• Low Clamping Voltage: Ensures that the protected circuit is not subjected to excessive voltages during transient events.

Advantages

• Reliable Protection: Offers robust protection against voltage transients, enhancing the durability of electronic systems.
• Compact Design: The surface-mount package allows for space-efficient integration into circuit designs.
• Wide Operating Temperature Range: Suitable for use in diverse environmental conditions.

Disadvantages

• Unidirectional Protection: Limited to protecting against voltage surges in one direction only.
• Limited Peak Pulse Power: May not be suitable for applications with extremely high transient energy levels.

Working Principles

The SMA5J20CHE3/61 operates based on the principle of avalanche breakdown, where it rapidly conducts when the voltage across it exceeds the breakdown voltage. This effectively shunts the excess current away from the protected circuit, preventing damage.

Detailed Application Field Plans

The SMA5J20CHE3/61 finds extensive application in various electronic systems, including: - Telecommunication Equipment: Protects sensitive communication devices from voltage surges. - Industrial Control Systems: Safeguards control circuitry from transient events in industrial environments. - Automotive Electronics: Provides surge protection for automotive electronic systems, such as ECUs and infotainment units.

Detailed and Complete Alternative Models

• SMAJ20A: Similar specifications with a slightly higher peak pulse power rating.
• SMA6J20A: Offers higher surge current capability while maintaining a comparable clamping voltage.

In conclusion, the SMA5J20CHE3/61 is a reliable TVS diode that offers effective surge protection for a wide range of electronic applications, despite its limitations in unidirectional protection and peak pulse power handling. Its compact design, fast response time, and wide operating temperature range make it a valuable component in safeguarding electronic circuits from transient voltage events.

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