FR107W Fast Recovery Rectifier Diode
The MIC FR107W is a surface-mount rectifier diode rated for 1000V repetitive peak reverse voltage and 1A average forward rectified current under the datasheet conditions. Its low-profile SOD-123FL package and glass-passivated junction suit compact power and rectification circuits.
Key Features
1000V Reverse Voltage
High reverse-voltage rating for rectifier and power-conversion designs.
1A Average Forward Current
Rated at 65°C ambient under the specified load conditions; current must be derated as temperature increases.
500ns Recovery Time
Maximum reverse recovery time under the stated test conditions. Check suitability for the actual switching frequency and circuit.
SOD-123FL Package
Low-profile, two-terminal SMD package designed for automated placement.
Technical Specifications
| Parameter | Rating / Condition |
|---|---|
| Manufacturer | MIC — Master Instrument Corporation |
| Part number | FR107W |
| Repetitive peak reverse voltage (VRRM) | 1000V maximum |
| RMS reverse voltage | 700V maximum |
| DC blocking voltage | 1000V maximum |
| Average forward rectified current (IF(AV)) | 1A at 65°C ambient; see derating curve |
| Non-repetitive forward surge current (IFSM) | 30A; 8.3ms single half-sine wave, JEDEC method |
| Forward voltage (VF) | 1.3V maximum at 1A |
| Reverse recovery time (trr) | 500ns maximum; IF = 0.5A, IR = 1A, Irr = 0.25A |
| Reverse leakage at rated DC blocking voltage | 5μA maximum at 25°C; 100μA maximum at 125°C |
| Typical junction capacitance | 15pF at 4V reverse bias, 1MHz |
| Operating and storage temperature | −55°C to +150°C |
| Package | SOD-123FL |
| Marking | F7; confirm the part against its packaging, as the datasheet also uses F7 for FR106W |
| Polarity | Pin 1: cathode; pin 2: anode. Refer to the datasheet package drawing. |
Applications
Power Supplies & Adapters
Rectification stages selected to suit the circuit voltage, current and thermal requirements.
Switch-Mode Circuits
Use where the specified reverse recovery time is suitable for the switching conditions.
Chargers & Power Control
Compact surface-mount rectification and power-conversion circuits.
PCB and Circuit Design Notes
- Use the SOD-123FL footprint and recommended mounting-pad dimensions from the datasheet.
- Verify anode and cathode orientation before assembly.
- Provide suitable copper area and thermal management; the 1A value is not guaranteed at every ambient temperature.
- The 30A rating is a non-repetitive surge rating, not a continuous current rating.
- For capacitive loads, the datasheet specifies 20% current derating.
- Check reverse-voltage transients and reverse recovery requirements when choosing the diode.
