The SMBJ5381B is a surface mount Zener diode manufactured by Micro Commercial Components (MCC). It is designed for voltage regulation and transient voltage suppression in a variety of electronic circuits.

Applications

• Voltage regulation
• Transient voltage suppression
• Overvoltage protection
• Clipping circuits
• Communication systems

Features

• Surface Mount Package: SMB package for easy automated assembly.
• Zener Voltage Tolerance: ±5% tolerance on the Zener voltage.
• High Surge Capability: Designed to withstand high surge currents.
• Low Incremental Zener Resistance: Provides stable voltage regulation.
• Glass Passivated Junction: Ensures high reliability and performance.
• RoHS Compliant: Lead-free and compliant with RoHS standards.

Benefits

• Precise Voltage Regulation: Maintains a stable output voltage within specified limits.
• Transient Voltage Protection: Protects sensitive components from voltage spikes.
• Easy Assembly: Surface mount package simplifies the assembly process.
• High Reliability: Glass passivated junction ensures long-term performance.
• Environmentally Friendly: RoHS compliance ensures environmental safety.
• Space Saving: Compact SMB package saves valuable board space.

Additional Details

The SMBJ5381B has a nominal Zener voltage of 11 Volts. It's designed to operate over a wide temperature range. The datasheet provides comprehensive details on voltage regulation characteristics, surge current ratings, and thermal considerations. The device is widely used in power supplies, telecommunication equipment, and automotive electronics. The glass passivated junction ensures stable performance and long-term reliability. Its small size and surface-mount design make it suitable for high-density circuit boards. The high surge capability enables it to withstand transient voltage events, protecting downstream components from damage. Proper heatsinking may be required depending on the application and power dissipation. The device is marked with a specific code for easy identification and traceability.