Diode PFR20100CTB Datasheet PDF learn more.
Part number: PFR20100
Functions: 100V, 20A, Schottky Rectifier.
Package information: TO-263 type
Manufacturer: PFC Device Corporation
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Description
The PFR20100CTB is a high-current Schottky rectifier rated at 20A and 100V, designed for efficient power conversion in high-frequency applications and packaged in TO-220/TO-263 style housings. It features ultra-low forward voltage drop, fast switching performance, and reliable operation at elevated junction temperatures up to 175°C. This device is widely used in switching power supplies, freewheeling diodes, and DC-DC converter circuits.
Features
- Schottky barrier rectifier with low forward voltage drop
- High current capability (IF = 20A)
- Reverse voltage rating up to 100V
- Low forward voltage (VF ≈ 0.66V typ.)
- Fast switching with minimal reverse recovery loss
- High junction temperature capability (up to 175°C)
- Lead-free and RoHS compliant
Pinout

Absolute Maximum Ratings (Tc = 25 °C)
| Parameter | Symbol | Value | Unit |
| Average Forward Current | IF(AV) | 20 | A |
| Repetitive Peak Reverse Voltage | VRRM | 100 | V |
| Forward Voltage | VF | 0.66 | V |
| Operating Junction Temperature | Tj | -65 to 175 | °C |
| Storage Temperature | Tstg | -65 to 175 | °C |
Design Notes
- Low forward voltage reduces conduction losses in power circuits
- Ensure adequate heat sinking for high current operation
- Suitable for high-frequency switching due to negligible reverse recovery
- Parallel operation may require current balancing considerations
- High temperature rating improves reliability in harsh environments
Typical Circuit Usage
- Output rectification in switching power supplies
- Freewheeling diode in DC-DC converters
- Reverse polarity protection circuits
- Battery charging systems
- Power OR-ing applications
How to Choose This Part
- Select when low forward loss is critical for efficiency
- Suitable for high current (up to 20A) applications
- Ensure reverse voltage margin meets system requirements
- Consider thermal design for continuous load conditions
- Ideal for high-frequency switching designs
Applications
- Switching mode power supplies (SMPS)
- DC-DC converters
- Industrial power systems
- Automotive electronics
- Power management circuits
Alternative / Equivalent Products
- MBR20100CT
- STPS20100CT
- SR20100
- SS20100
- VS-20CTQ100
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