SMBJ45CAHE3/5B

Product Overview

The SMBJ45CAHE3/5B belongs to the category of transient voltage suppressor diodes (TVS diodes). These diodes are used to protect sensitive electronic components from voltage spikes and transients. The SMBJ45CAHE3/5B is characterized by its high surge capability, low clamping voltage, and fast response time. It is available in a compact package, making it suitable for various applications where space is limited. The essence of this product lies in its ability to provide reliable overvoltage protection in a small form factor. The SMBJ45CAHE3/5B is typically packaged in tape and reel format, with a quantity of 3000 units per reel.

Specifications

• Part Number: SMBJ45CAHE3/5B
• Category: Transient Voltage Suppressor Diode
• Voltage Rating: 45V
• Peak Pulse Power: 600W
• Package Type: DO-214AA (SMB)
• Polarity: Unidirectional
• Operating Temperature Range: -55°C to +150°C

Detailed Pin Configuration

The SMBJ45CAHE3/5B follows the standard pin configuration for SMB package diodes, with two pins for connection. The anode is connected to pin 1, while the cathode is connected to pin 2.

Functional Features

• Transient Voltage Suppression: Effectively clamps transient overvoltages to protect downstream components.
• Fast Response Time: Rapid reaction to voltage spikes ensures minimal impact on the protected circuit.
• High Surge Capability: Capable of withstanding high surge currents without degradation.

Advantages and Disadvantages

Advantages

• Compact size for space-constrained applications
• High surge capability for robust protection
• Fast response time for rapid transient suppression

Disadvantages

• Limited to unidirectional voltage clamping
• May require additional components for bidirectional protection

Working Principles

The SMBJ45CAHE3/5B operates based on the principle of avalanche breakdown. When a voltage spike occurs, the diode rapidly conducts, diverting the excess energy away from the protected circuit. This action effectively limits the voltage across the circuit, preventing damage to sensitive components.

Detailed Application Field Plans

The SMBJ45CAHE3/5B finds extensive use in various applications, including: - Telecommunications: Protecting communication equipment from lightning-induced surges. - Automotive Electronics: Safeguarding vehicle electronics from voltage transients. - Industrial Control Systems: Providing overvoltage protection for control circuitry. - Consumer Electronics: Protecting sensitive devices such as smartphones and tablets.

Detailed and Complete Alternative Models

• SMBJ5.0A: 5V TVS diode with similar characteristics
• SMBJ12A: 12V TVS diode offering protection for lower voltage circuits
• SMBJ24A: 24V TVS diode suitable for medium voltage applications

In conclusion, the SMBJ45CAHE3/5B transient voltage suppressor diode offers compact, reliable protection against voltage transients in a wide range of applications. Its high surge capability, fast response time, and compact form factor make it a valuable component in safeguarding sensitive electronics.

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