SMAJ43A

The SMAJ43A is a transient voltage suppressor diode designed to protect electronic circuits from voltage spikes or surges. This diode is specifically rated for a working peak reverse voltage of 43V, making it suitable for applications where transient voltage protection is required.

Pinout

(Note: The pin configuration below is a general representation. Refer to the specific datasheet for precise details.)

• A: Anode
• K: Cathode

Circuit Diagram

Include a circuit diagram illustrating the application of the SMAJ43A diode for voltage surge protection.

Key Features

• Transient Voltage Suppression: The SMAJ43A provides effective protection against transient voltage spikes in electronic circuits.
• Working Peak Reverse Voltage: Rated for a working peak reverse voltage of 43V, ensuring protection within the specified range.
• Fast Response Time: Offers a fast response time to clamp transient voltages and protect downstream components.
• Low Leakage Current: Maintains low leakage current during normal operation for minimal power loss.

Note: For detailed technical specifications, please refer to the SMAJ43A datasheet.

Application

• Transient Voltage Protection: Ideal for protecting sensitive electronic components from voltage transients in various applications.
• Power Supply Protection: Used in power supply circuits to safeguard against voltage surges and spikes.
• Telecommunication Systems: Commonly employed in telecommunication systems for surge protection.

Functionality

The SMAJ43A diode acts as a safeguard by diverting excessive voltage away from sensitive circuit elements, ensuring the protection of connected devices against transient voltage events.

Usage Guide

• Orientation: Connect the Anode (A) to the higher voltage side and the Cathode (K) to the protected circuit side.
• Installation: Place the SMAJ43A diode in parallel with the circuit to be protected for effective transient voltage suppression.
• Replacement: If the diode wears out due to voltage surges, replace it promptly to maintain protection levels.

Frequently Asked Questions

Q: What is the clamping voltage of the SMAJ43A diode?
A: The clamping voltage is the maximum voltage the diode allows across it during a transient event. For the SMAJ43A, the clamping voltage is typically around 77V.

Q: Can multiple SMAJ43A diodes be used in series for higher voltage protection?
A: Yes, multiple diodes can be connected in series to increase the overall voltage protection level. However, each diode adds some forward voltage drop to the circuit.