Comprehensive Guide to Common Diodes: 1N4007, 1N4148, FR207, SR360, 1N5402, 1N5817
Diodes are vital components in electronics, serving as one-way gates for electric current. They’re used across countless applications, from rectification to switching and protection. In this blog, we’ll explore the features, specifications, and applications of six popular diodes—1N4007, 1N4148, FR207, SR360, 1N5402, and 1N5817.
If you’re looking for more details about other diode types or the fundamentals of diodes, check out the resources on the Regent Electronics website.
1N4007 Diode
The 1N4007 is a general-purpose silicon rectifier diode commonly used in AC-to-DC conversion and bridge rectifier circuits.
Specifications
- Package: DO-41 plastic
- Forward Voltage: 0.6V–0.8V (low power), ~1V (high power)
- Maximum Current: 1A (continuous), 30A (peak)
- Reverse Voltage: 1000V
- Power Dissipation: 3W
- Operating Temperature: -55°C to +175°C
Applications
- General-purpose rectification in power supplies
- Protection against reverse currents in microcontroller circuits
- Inverters and converters
- Freewheeling diodes
1N400X Series Overview
| Diode | Current (A) | Peak Voltage (V) | RMS Voltage (V) | DC Blocking Voltage (V) |
| 1N4001 | 1 | 50 | 35 | 50 |
| 1N4007 | 1 | 1000 | 700 | 1000 |
1N4148 Diode
The 1N4148 is a high-speed switching diode ideal for fast electronic circuits.
Specifications
- Package: DO-35 glass
- Maximum Current: 300mA (continuous), 2A (peak)
- Reverse Recovery Time: 8ns
- Power Dissipation: 80mW–1kW
Applications
- High-speed switching
- Fast rectification
- Telecommunications equipment
- Signal protection circuits
FR207 Diode
The FR207 is a fast recovery rectifier diode designed for high-speed switching applications.
Specifications
- Package: DO-15
- Maximum Current: 2A (continuous)
- Reverse Recovery Time: 500ns
- Peak Voltage: 1000V
Applications
- High-speed switching circuits
- Voltage regulation
- Power conversion
FR20 Series Overview
| Diode | Peak Voltage (V) | RMS Voltage (V) | DC Blocking Voltage (V) |
| FR201 | 50 | 35 | 50 |
| FR207 | 1000 | 700 | 1000 |
SR360 Diode
The SR360 is a Schottky barrier rectifier known for its low voltage drop and high efficiency.
Specifications
- Package: DO-201AD
- Forward Voltage Drop: 0.75V
- Maximum Current: 3A (continuous), 80A (surge)
- Reverse Current: 200µA
Applications
- Polarity protection
- High-frequency inverters
- Power regulation circuits
1N5402 Diode
The 1N5402 is a power rectifier diode that offers high forward current capabilities.
Specifications
- Package: DO-201
- Maximum Current: 3A (continuous), 200A (peak)
- Reverse Voltage: 200V
- Reverse Current: 10µA
Applications
- HV power supplies
- Half-wave and full-wave rectifiers
- Polarity protection
1N5817 Diode
The 1N5817 is a Schottky diode with a low forward voltage drop, making it perfect for reverse polarity protection and high-frequency applications.
Specifications
- Package: DO-41
- Forward Voltage Drop: 450mV
- Maximum Current: 1A (continuous), 25A (peak)
- Reverse Voltage: 20V
Applications
- DC-DC converters
- High-frequency inverters
- Power supply protection
Comparison Table
| Diode | Type | Current (A) | Forward Voltage (V) | Peak Current (A) | Reverse Current |
| 1N4007 | Rectifier Diode | 1 | ~1 | 30 | 5µA |
| 1N4148 | Switching Diode | 0.3 | ~1 | 2 | 50µA |
| FR207 | Fast Recovery Diode | 2 | ~1.2 | 75 | 10µA |
| SR360 | Schottky Rectifier Diode | 3 | ~0.75 | 80 | 200µA |
| 1N5402 | Power Rectifier Diode | 3 | ~1.2 | 200 | 10µA |
| 1N5817 | Schottky Diode | 1 | ~0.45 | 25 | 10mA |
At Regent Electronics, we’re committed to offering high-quality diodes for a range of applications. For inquiries or purchases, contact us today!