Fast recovery epitaxial diodes for high-frequency switching applications
MacMic FRED (Fast Recovery Epitaxial Diode) diodes feature soft recovery characteristics with low reverse recovery losses, making them ideal for high-frequency switching applications. Our portfolio includes devices from 1A to 100A in various packages including through-hole and surface mount options.
Key applications for MacMic FRED diodes include:
50V - 1600V
1A - 100A
Through-hole, SMD, TO-220, TO-247
Soft Recovery, Low Losses
General-purpose FRED diodes with optimized recovery characteristics for power supplies and motor drives.
FRED diodes with ultra-fast recovery for high-frequency applications requiring minimal losses.
AEC-Q101 qualified FRED diodes for automotive applications requiring enhanced reliability.
| Model | Series | Voltage (VRRM) | Current (IF(AV)) | Recovery Time (trr) | Package | Applications | Actions |
|---|---|---|---|---|---|---|---|
| MMD010060F | Standard | 600V | 1A | 35ns | DPAK | SMPS, adapters | Datasheet |
| MMD030060F | Standard | 600V | 3A | 35ns | DPAK | SMPS, adapters | Datasheet |
| MMD06060F | Standard | 600V | 6A | 35ns | TO-220 | Power supplies, UPS | Datasheet |
| MMD10060F | Standard | 600V | 10A | 35ns | TO-220 | Power supplies, UPS | Datasheet |
| MMD20060F | Standard | 600V | 20A | 35ns | TO-247 | Industrial power supplies | Datasheet |
| MMD06080F | High Efficiency | 800V | 6A | 25ns | TO-220 | High-frequency converters | Datasheet |
| MMD10080F | High Efficiency | 800V | 10A | 25ns | TO-220 | High-frequency converters | Datasheet |
Choosing the right FRED diode for your application requires careful consideration of several factors:
Select a diode with a voltage rating at least 20% higher than your maximum reverse voltage to account for voltage spikes during recovery and ensure reliable operation.
Consider both average forward current and peak current requirements. Account for derating based on operating temperature and switching frequency.
For high-frequency applications, select diodes with faster recovery times to minimize switching losses. For EMI-sensitive applications, consider softer recovery characteristics.
Consider the thermal resistance of the package and ensure adequate cooling to maintain junction temperature within safe limits.
Practical guides for implementing MacMic FRED diodes in various applications.
View NotesMacMic FRED diodes vs. competitive solutions from Vishay, ON Semiconductor, and others.
Compare SolutionsFRED (Fast Recovery Epitaxial Diode) diodes have significantly faster recovery times (typically 25-50ns) compared to standard rectifier diodes (several microseconds). This allows FRED diodes to be used in high-frequency switching applications where standard diodes would cause excessive switching losses.
Select a diode with a voltage rating that is at least 20% higher than your maximum reverse voltage to account for voltage spikes during switching and recovery. For example, if your application has a 600V reverse voltage, select a diode with at least a 750V rating.
Key parameters include voltage rating (VRRM), average forward current (IF(AV)), reverse recovery time (trr), forward voltage drop (VF), and thermal resistance (Rth). The specific requirements will depend on your application's frequency, power level, and thermal constraints.
Yes, MacMic offers automotive-grade FRED diodes qualified to AEC-Q101 standards for use in electric vehicles, on-board chargers, and DC/DC converters. Please contact our automotive applications team for specific requirements and qualified part numbers.
Our technical experts are ready to assist with product selection, design support, and custom solutions
