SR840 – Schottky Barrier Rectifier Diode

Overview

SR840 – Schottky Barrier Rectifier Diode

Product Overview:

The SR840 is an 8A, 40V Schottky Barrier Rectifier Diode, designed for high-efficiency power rectification in switching power supplies, freewheeling diodes, polarity protection, and DC-DC converters. It features a low forward voltage drop and fast recovery time, making it ideal for high-frequency applications.

Key Specifications:

• Type: Schottky Barrier Rectifier
• Maximum Repetitive Reverse Voltage (Vrrm): 40V
• Forward Continuous Current (If): 8A
• Forward Voltage Drop (Vf): 0.55V – 0.70V (at 8A)
• Reverse Leakage Current (Ir): 1mA max at 40V
• Operating Temperature Range: -65°C to +150°C
• Package Type: TO-220AC / DO-201AD

Applications:

✔ Switching Power Supplies – Improves efficiency by reducing power losses.
✔ DC-DC Converters – Used in buck/boost converters and solar charge controllers.
✔ Freewheeling & Protection Circuits – Prevents voltage spikes and reverse polarity damage.
✔ Battery Charging Systems – Enhances rectification efficiency.

Features & Benefits:

✔ High Current Capability (8A) – Suitable for medium to high-power applications.
✔ Low Forward Voltage Drop (0.55V – 0.70V) – Reduces heat dissipation and power losses.
✔ Fast Switching & Recovery Time – Ideal for high-frequency circuits.
✔ High Surge Current Capability – Can handle temporary overload conditions.

Equivalent & Alternative Parts:

• SR860 – Similar part with a higher voltage rating (60V, 8A).
• 1N5822 – A lower current version (3A, 40V) with similar characteristics.
• MBR840 – Another 8A, 40V Schottky rectifier with comparable performance.