SMAJ170-E3/5A

Product Overview

Category

The SMAJ170-E3/5A belongs to the category of electronic components, specifically within the realm of semiconductor devices.

Use

This product is primarily used for voltage clamping and transient suppression in electronic circuits, providing protection against voltage spikes and surges.

Characteristics

• Voltage Clamping: Capable of clamping excessive voltage levels to protect downstream components.
• Transient Suppression: Effectively suppresses transient voltage spikes to safeguard sensitive electronics.
• Compact Package: Small form factor for easy integration into circuit designs.
• Robustness: Designed to withstand high-energy transients without degradation.

Package

The SMAJ170-E3/5A is typically available in a surface-mount package, offering ease of installation and space efficiency.

Essence

The essence of this product lies in its ability to ensure the reliability and longevity of electronic systems by mitigating the impact of voltage transients.

Packaging/Quantity

It is commonly supplied in reels or tubes, with quantities varying based on manufacturer specifications.

Specifications

• Part Number: SMAJ170-E3/5A
• Peak Pulse Power: 400W
• Breakdown Voltage: 170V
• Operating Temperature Range: -55°C to +150°C
• Reverse Standoff Voltage: 144V
• Forward Voltage: 1.0V at 3.5A

Detailed Pin Configuration

The SMAJ170-E3/5A features a standard SMC (DO-214AB) package with two pins for surface mounting onto PCBs.

Functional Features

• Voltage Clamping: Rapid response to overvoltage conditions, diverting excess current away from sensitive components.
• Transient Suppression: Effectively absorbs and dissipates transient energy, preventing damage to connected devices.
• Low Leakage Current: Ensures minimal power loss during normal operation.

Advantages

• Reliable Protection: Safeguards sensitive electronics from voltage surges, enhancing system robustness.
• Fast Response Time: Swift reaction to transient events, minimizing the risk of damage.
• Compact Design: Space-efficient form factor for seamless integration into circuit layouts.

Disadvantages

• Clamping Voltage Limitation: May not be suitable for applications requiring higher clamping voltages.
• Heat Dissipation: Under sustained high-energy transient conditions, heat dissipation may become a concern.

Working Principles

The SMAJ170-E3/5A operates based on the principle of avalanche breakdown, where it rapidly conducts excess current when the voltage exceeds the breakdown threshold, effectively limiting the voltage across the protected circuit.

Detailed Application Field Plans

Electronic Systems

• Telecommunications: Protects communication equipment from lightning-induced surges.
• Industrial Control Systems: Safeguards PLCs and control circuitry from voltage transients.
• Consumer Electronics: Provides surge protection for sensitive electronic devices.

Automotive Electronics

• Vehicle Control Units: Shields ECUs and sensors from voltage spikes induced by electrical disturbances.
• Infotainment Systems: Protects audio and video components from transient voltage events.

Renewable Energy Systems

• Solar Power Installations: Guards inverters and control electronics against lightning-induced surges.
• Wind Turbine Controls: Protects pitch and yaw control systems from voltage transients.

Detailed and Complete Alternative Models

• P6SMB170A: Similar peak pulse power and breakdown voltage ratings.
• SMBJ170CA: Offers comparable transient suppression capabilities with a different package style.
• 1.5SMC170CA: Higher peak pulse power rating while maintaining the same breakdown voltage.

In conclusion, the SMAJ170-E3/5A serves as a crucial component in electronic systems, providing essential transient voltage suppression and clamping capabilities to ensure the integrity and longevity of sensitive electronics in various application fields.

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