The FM4747W is a Zener diode manufactured by Rectron Semiconductor. It is designed to operate in the reverse breakdown region, providing a stable voltage reference for various electronic applications. This diode is commonly used for voltage regulation, voltage clamping, and surge protection. The FM4747W is available in a surface-mount package, making it suitable for automated assembly and compact designs. Rectron Semiconductor is known for its reliable and cost-effective discrete semiconductor products.

Applications

• Voltage Regulation: Maintaining a stable voltage level in power supplies and electronic circuits.
• Voltage Clamping: Protecting sensitive components from overvoltage conditions.
• Surge Suppression: Absorbing voltage spikes and transients to prevent damage to electronic equipment.
• Overvoltage Protection Circuits: Implementing protection against excessive voltage in electronic devices.
• Reference Voltage in Linear Regulators: Providing a stable voltage reference for linear voltage regulators.

Features

• Zener Voltage: 20V (typical value, refer to datasheet for specific tolerance).
• Surface-Mount Package: SOD-123 package for efficient board assembly.
• Low Leakage Current: Minimizes power consumption and improves voltage regulation accuracy.
• High Surge Current Capability: Withstands transient voltage surges without damage.
• RoHS Compliant: Complies with environmental regulations for hazardous substances.

Benefits

• Stable Voltage: Provides a consistent and reliable voltage reference for circuit operation.
• Overvoltage Protection: Protects sensitive components from damage caused by voltage surges.
• Compact Design: Surface-mount package allows for miniaturization of electronic devices.
• Ease of Use: Simple two-terminal device requires minimal external components.
• Cost-Effective Solution: Provides a low-cost solution for voltage regulation and protection.

Additional Details

The FM4747W's power dissipation should be carefully considered when designing a circuit. The Zener voltage has a specified tolerance, which is important to consider in applications requiring precise voltage regulation. The datasheet should be consulted for the diode's exact specifications, including Zener impedance, reverse leakage current, and operating temperature range. Proper thermal management is important to ensure reliable operation. This diode is commonly used in various electronic devices, including consumer electronics, industrial equipment, and automotive applications.