1N5402 General Purpose Rectifier Diode

Overview

The 1N5402 is a general-purpose rectifier diode designed for high-current and high-voltage applications. It is part of the 1N5400 series, which is widely used in power supply circuits, inverters, and converters. The diode is constructed with a robust axial-lead package, making it suitable for through-hole PCB mounting. With its low forward voltage drop and high surge current capability, the 1N5402 is an excellent choice for rectification in AC-to-DC conversion and other power management tasks.

Features

• Low Forward Voltage Drop: Ensures minimal power loss during conduction, improving efficiency.
• Low Leakage Current: Reduces unwanted power dissipation in reverse bias conditions.
• High Forward Surge Capability: Can withstand surge currents up to 200A, making it reliable in high-stress environments.
• Solder Dip Compatibility: Rated for 275°C max for 10 seconds, compliant with JESD 22-B106 standards.
• Material: High-quality silicon construction ensures durability and stable performance.
• Axial Lead Package: Facilitates easy through-hole PCB mounting.

Applications

The 1N5402 is versatile and finds use in a variety of electronic circuits, including:

• Power Supplies: Used in bridge rectifiers and DC power supply circuits for converting AC to DC.
• Battery Chargers: Provides efficient rectification in charging circuits.
• Inverters and Converters: Essential for converting DC to AC or stepping voltage levels.
• Reverse Polarity Protection: Safeguards circuits from damage due to incorrect power supply connections.
• Freewheeling Diodes: Used in inductive load applications to protect components from voltage spikes.

Electrical Characteristics

Absolute Maximum Ratings

• Peak Repetitive Reverse Voltage (V_RRM): 200V
• Average Rectified Forward Current (I_F(AV)): 3A
• Non-Repetitive Peak Forward Surge Current (I_FSM): 200A (8.3ms single half-sine wave)
• Operating Junction Temperature (T_J): -65°C to +175°C
• Storage Temperature Range (T_STG): -65°C to +175°C

Typical Electrical Performance

• Forward Voltage Drop (V_F): 0.95V at 3A (typical)
• Reverse Leakage Current (I_R): 5µA at 200V (typical)
• Total Capacitance (C_T): 40pF at 4V, 1MHz

Package Information

The 1N5402 is available in an axial-lead package, which is industry-standard for through-hole mounting. The package dimensions and pinout are as follows:

• Package Type: DO-201AD (Axial Lead)
• Body Diameter: 5.3mm (max)
• Lead Diameter: 1.0mm (nominal)
• Lead Length: 25.4mm (standard)
• Weight: Approximately 1.1 grams

Mechanical Specifications

• Termination Finish: Tin-plated leads for excellent solderability.
• Flammability Rating: UL94 V-0 compliant for fire safety.
• Moisture Sensitivity Level (MSL): Not applicable (non-MSL component).

Reliability and Compliance

The 1N5402 meets stringent industry standards for performance and reliability. It is compliant with RoHS (Restriction of Hazardous Substances) directives, ensuring environmental safety. The diode is also tested for high-temperature operation and surge current handling, making it suitable for demanding applications.

Conclusion

The 1N5402 is a robust and reliable rectifier diode, ideal for high-current and high-voltage applications. Its low forward voltage drop, high surge capability, and durable construction make it a preferred choice for power supply designs, inverters, and protection circuits. With its axial-lead package, it is easy to integrate into through-hole PCB designs, providing a cost-effective solution for rectification needs.