Fast Recovery Epitaxial Diode (FRED) - DSEI Series
IXYS' ultra-fast FRED diodes offer very soft recovery behavior which reduces inductive overvoltages
IXYS, a Littelfuse Technology's DSEI series are ultra-fast FRED diodes, which have gained wide acceptance in the market. The FRED diodes by IXYS are characterized by very low reverse recovery currents, even at high -diF/dt. Simultaneously, they show a soft decrease of the reverse recovery current, avoiding inductive over voltages with very high dv/dt. These overvoltages could cause a malfunction or the destruction of the active switching devices such as a MOSFET, IGBT, or bipolar transistor. These ultra-fast diodes are offered in TO- 220, TO-247, SOT-227B, and miniBLOC (array) packages. These diodes are available with blocking voltages from 200 V to 1,200 V. Typical applications include data communication and telecommunication system equipment.
- Planar passivated chips
- Low leakage current
- Very short recovery time
- Improved thermal behavior
- Very soft recovery behavior
- Avalanche voltage rated for reliable operation
- Soft reverse recovery for low EMI/RFI
- Low IRM Current reduces:
- Power dissipation within the diode
- Turn-on loss in the commutating switch
- Antiparallel diodes for high-frequency switching devices
- Antisaturation diodes
- Snubber diodes
- Free-wheeling diodes
- Rectifiers in switch-mode power supplies (SMPS)
- Uninterruptible power supplies (UPS)
Fast Recovery Epitaxial Diode (FRED) - DSEI Series
| Image | Manufacturer Part Number | Description | Current - Average Rectified (Io) | Voltage - Forward (Vf) (Max) @ If | Speed | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
![]() | ![]() | DSEI30-10AR | DIODE STD 1000V 30A ISOPLUS247 | 30A | 2.4 V @ 36 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $3.26 | View Details |
![]() | ![]() | DSEI25-06A | DIODE STANDARD 600V 25A TO2202 | 25A | 1.51 V @ 25 A | Fast Recovery =< 500ns, > 200mA (Io) | 1509 - Immediate | $2.89 | View Details |
![]() | ![]() | DSEI12-06AS-TUB | DIODE STANDARD 600V 14A TO263AA | 14A | 1.7 V @ 16 A | Fast Recovery =< 500ns, > 200mA (Io) | 29 - Immediate | $3.33 | View Details |
![]() | ![]() | DSEI120-06A | DIODE STANDARD 600V 77A TO247AD | 77A | 1.3 V @ 70 A | Fast Recovery =< 500ns, > 200mA (Io) | 1048 - Immediate | $6.43 | View Details |
Diode Array Modules - DSEI Series
| Image | Manufacturer Part Number | Description | Current - Average Rectified (Io) (per Diode) | Voltage - Forward (Vf) (Max) @ If | Speed | Available Quantity | Price | View Details | |
|---|---|---|---|---|---|---|---|---|---|
![]() | ![]() | DSEI2X61-02A | DIODE MODULE GP 200V 71A SOT227B | 71A | 1.08 V @ 60 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $27.45 | View Details |
![]() | ![]() | DSEI2X101-06A | DIODE MODULE GP 600V 96A SOT227B | 96A | 1.25 V @ 100 A | Fast Recovery =< 500ns, > 200mA (Io) | 31 - Immediate | $30.17 | View Details |
![]() | ![]() | DSEI2X61-10B | DIODE MOD GP 1000V 60A SOT227B | 60A | 2.3 V @ 60 A | Fast Recovery =< 500ns, > 200mA (Io) | 280 - Immediate | $29.24 | View Details |
![]() | ![]() | DSEI2X31-06C | DIODE MODULE GP 600V 30A SOT227B | 30A | 1.6 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 1661 - Immediate | $25.00 | View Details |
![]() | ![]() | DSEI2X30-06C | DIODE MODULE GP 600V 30A SOT227B | 30A | 1.6 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 117 - Immediate | $24.87 | View Details |
![]() | ![]() | DSEI2X31-12B | DIODE MOD GP 1200V 28A SOT227B | 30A | 2.54 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 2063 - Immediate | $21.70 | View Details |
![]() | ![]() | DSEI2X30-04C | DIODE MODULE GP 400V 30A SOT227B | 30A | 1.6 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $24.87 | View Details |
![]() | ![]() | DSEI2X30-12B | DIODE MOD GP 1200V 28A SOT227B | 28A | 2.55 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $24.23 | View Details |
![]() | ![]() | DSEI2X61-04C | DIODE MODULE GP 400V 60A SOT227B | 60A | 1.8 V @ 60 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $25.25 | View Details |
![]() | ![]() | DSEI2X61-12B | DIODE MOD GP 1200V 52A SOT227B | 52A | 2.5 V @ 60 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $29.00 | View Details |
![]() | ![]() | DSEI2X121-02A | DIODE MOD GP 200V 123A SOT227B | 123A | 1.1 V @ 120 A | Fast Recovery =< 500ns, > 200mA (Io) | 962 - Immediate | $29.56 | View Details |
![]() | ![]() | DSEI2X101-12A | DIODE MOD GP 1200V 91A SOT227B | 91A | 1.87 V @ 100 A | Fast Recovery =< 500ns, > 200mA (Io) | 0 - Immediate | $39.38 | View Details |
![]() | ![]() | DSEI2X31-10B | DIODE MOD GP 1000V 30A SOT227B | 30A | 2.4 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 300 - Immediate | $23.59 | View Details |
![]() | ![]() | DSEI2X61-06C | DIODE MODULE GP 600V 60A SOT227B | 60A | 1.8 V @ 60 A | Fast Recovery =< 500ns, > 200mA (Io) | 2962 - Immediate | $25.25 | View Details |
![]() | ![]() | DSEI2X31-04C | DIODE MODULE GP 400V 30A SOT227B | 30A | 1.6 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 65 - Immediate | $25.00 | View Details |
![]() | ![]() | DSEI2X30-10B | DIODE MOD GP 1000V 30A SOT227B | 30A | 2.4 V @ 30 A | Fast Recovery =< 500ns, > 200mA (Io) | 10 - Immediate | $22.45 | View Details |







