8A 1000V Bridge Rectifier Diode KBU-8M ⚡

The KBU-8M is a robust bridge rectifier diode designed for high-voltage and high-current AC to DC conversion. Ideal for power supplies, industrial control, and automation equipment, it supports up to 8 A output current with a maximum reverse voltage of 1000 V. The typical forward voltage drop is approximately 1.1 V per diode in the bridge path.
Encapsulated in a durable KBU package with 4 leads, it is suitable for through-hole PCB assembly or wire mounting. The wide operating temperature range of -55°C to +150°C ensures reliable performance in demanding environments—perfect for both engineers and hobbyists building electronics components and modules for Arduino, Raspberry Pi, and other microcontroller-based systems.

Key Features ✅

• High-voltage capability: up to 1000 V reverse voltage
• High-current handling: 8 A average rectified current
• Low conduction loss: ~1.1 V forward drop per diode
• Rugged KBU epoxy package, 4-pin, through-hole
• Wide operating temperature: -55°C to +150°C (junction)
• Clearly marked terminals: ~, ~, +, - for easy wiring

Electrical Specifications 📐

• Type: Bridge Rectifier Diode (KBU-8M)
• Maximum Current Capacity: 8 A
• Maximum Reverse Voltage: 1000 V
• Forward Voltage Drop: Approximately 1.1 V (per diode)
• Package Type: KBU; through-hole, suitable for PCB or wire mounting
• Operating Temperature: -55°C to +150°C

Typical Applications 🔧

• Power supplies and AC mains rectification
• Industrial control systems and motor drives
• Automation equipment and power modules
• DC rail generation for Arduino, Raspberry Pi, and other microcontroller projects (with transformer, filtering, and regulation)

Integration Tips for Makers 🛠️

• Expect a total conduction drop of about 2.2 V across the bridge under load (two diodes in series).
• Provide adequate heatsinking or airflow when operating near the 8 A rating.
• Select filter capacitors and regulators with suitable voltage and ripple current ratings.
• Regulate the rectified DC before powering sensitive electronics components or microcontroller boards like Arduino or Raspberry Pi.

Package & Mounting 📦

The KBU package features four straight leads for secure through-hole installation. Terminals are typically labeled ~ (AC), ~ (AC), + (DC+), and - (DC−), supporting direct wiring or PCB mounting.

Notes ℹ️

Specifications may vary between manufacturers and models. Always confirm the exact KBU-8M datasheet for your specific product and application requirements.