BYD47: Cavity-Free Cylindrical Glass SOD87 Diode

Overview

The BYD47 is a high-performance, cavity-free cylindrical glass diode housed in a SOD87 package. Designed for reliability and efficiency, this diode features glass passivation for enhanced protection against environmental factors. Its robust construction makes it suitable for demanding applications where stability and longevity are critical.

Features

• Glass Passivated: Provides superior protection against moisture and contaminants, ensuring long-term reliability.
• High Maximum Operating Current: Capable of handling elevated current levels, making it ideal for power applications.
• Cavity-Free Design: Eliminates internal voids, reducing the risk of mechanical failure under stress.
• Cylindrical Glass SOD87 Package: Compact and durable, suitable for automated assembly processes.
• Low Forward Voltage Drop: Enhances energy efficiency by minimizing power loss.
• High Surge Current Capability: Withstands transient overload conditions without degradation.

Applications

The BYD47 is versatile and finds use in a wide range of electronic circuits and systems, including:

• Power Supplies: Used in rectification and voltage regulation circuits.
• Automotive Electronics: Suitable for high-reliability applications such as engine control units and lighting systems.
• Industrial Equipment: Ideal for motor drives, inverters, and other high-current applications.
• Consumer Electronics: Employed in power management circuits for devices like TVs and home appliances.
• Telecommunications: Used in signal conditioning and protection circuits.

Electrical Characteristics

The following table outlines the key electrical parameters of the BYD47 diode under standard operating conditions (25°C unless otherwise specified):

Absolute Maximum Ratings

• Maximum Reverse Voltage (V_R): 1000V
• Maximum Forward Current (I_F): 1A
• Peak Surge Current (I_FSM): 30A (non-repetitive)
• Operating Temperature Range: -55°C to +150°C
• Storage Temperature Range: -55°C to +175°C

Typical Electrical Characteristics

• Forward Voltage Drop (V_F): 1.1V at 1A
• Reverse Leakage Current (I_R): 5µA at 1000V
• Junction Capacitance (C_J): 15pF at 0V, 1MHz
• Thermal Resistance (R_θJA): 50°C/W

Package Information

The BYD47 is housed in a SOD87 cylindrical glass package, which offers excellent mechanical and thermal performance. Key package details include:

Package Dimensions

• Body Diameter: 5.5mm ± 0.2mm
• Body Length: 10.5mm ± 0.5mm
• Lead Diameter: 0.6mm ± 0.05mm
• Lead Length: 25mm ± 2mm (standard)

Package Material

• Body: High-temperature glass
• Leads: Tin-plated copper for excellent solderability

Marking Information

The BYD47 diode is marked with the following identification for traceability:

• Part Number: "BYD47" printed on the glass body
• Polarity: Cathode indicated by a band or notch

Reliability and Compliance

The BYD47 diode is designed to meet stringent industry standards for reliability and performance. It undergoes rigorous testing to ensure compliance with the following:

• RoHS Compliance: Meets Restriction of Hazardous Substances Directive 2011/65/EU.
• Environmental Testing: Qualified for resistance to moisture (85°C/85% RH) and thermal shock.
• Flame Resistance: UL94 V-0 rated for flame retardancy.

Handling and Storage Recommendations

To maintain the integrity and performance of the BYD47 diode, adhere to the following guidelines:

• ESD Precautions: Handle with appropriate ESD protection to prevent damage from static discharge.
• Storage Conditions: Store in a dry environment at temperatures between -55°C and +175°C.
• Soldering: Use a soldering iron with a temperature not exceeding 260°C for a maximum of 5 seconds.

Conclusion

The BYD47 is a high-reliability, glass-passivated diode designed for demanding applications. Its cavity-free construction, high surge current capability, and robust SOD87 package make it an excellent choice for power supplies, automotive systems, and industrial equipment. With its superior electrical characteristics and compliance with industry standards, the BYD47 ensures long-term performance in harsh environments.