1N4007

Overview

1N4007 General Purpose Rectifier Diode designed for AC-to-DC conversion, reverse polarity protection, flyback protection, and power rectification applications. A highly reliable and widely used silicon rectifier diode capable of handling up to 1000V reverse voltage and 1A forward current.

The 1N4007 is commonly used in power supplies, adapters, battery chargers, inverters, motor protection circuits, LED drivers, home appliances, embedded systems, and industrial electronics. Its low cost, high voltage capability, and robust performance make it one of the most popular rectifier diodes in electronics.

Specifications

Parameter	Value
Model	1N4007
Diode Type	General Purpose Rectifier
Package	DO-41
Maximum Repetitive Reverse Voltage	1000V
RMS Reverse Voltage	700V
Average Forward Current	1A
Peak Surge Current	30A
Forward Voltage Drop	~1.1V
Reverse Recovery Time	~2µs
Power Dissipation	3W
Operating Temperature	-55°C to +175°C
Mounting Type	Through-Hole

Pin Configuration

Pin	Description
Anode	Positive Terminal
Cathode	Negative Terminal (Band Side)

The silver/gray band indicates the cathode terminal.

Features

• 1000V reverse voltage rating — suitable for high-voltage circuits
• 1A forward current capability
• Low-cost rectifier solution
• Reliable silicon PN junction
• High surge current handling
• Widely available component
• Easy through-hole mounting
• Excellent for power rectification
• Commonly used in adapters and SMPS circuits
• Strong reverse polarity protection

Common Applications

• AC to DC rectification
• Reverse polarity protection
• Flyback diode for relays
• Power supply circuits
• Battery chargers
• LED drivers
• Motor protection
• SMPS circuits
• Home appliances
• Industrial electronics

1N4007 vs 1N5819

Feature	1N4007	1N5819
Diode Type	Silicon Rectifier	Schottky
Reverse Voltage	1000V	40V
Forward Current	1A	1A
Forward Voltage Drop	~1.1V	~0.45V
Switching Speed	Slow	Very Fast
Efficiency	Medium	High
Best For	High voltage rectification	Low voltage fast switching

Wiring Example

Relay Flyback Protection

1N4007	Relay
Cathode	Relay VCC
Anode	Relay GND

AC Rectifier Example

Diode	Connection
Anode	AC Input
Cathode	DC Output

Common Applications in Embedded Systems

The 1N4007 is frequently used with:

• Arduino projects
• ESP32 circuits
• STM32 systems
• Relay modules
• Power adapters
• Motor driver protection
• Smart home electronics

Package Includes

• 1× 1N4007 Rectifier Diode

Notes

• Suitable for low-frequency rectification
• Not ideal for high-frequency switching applications
• Observe correct polarity during installation
• Cathode side marked with band
• Use heat management in high-current applications
• Common replacement for many general-purpose rectifier diodes