FRD Modules

Dynex's FRD modules regulate electricity flow to ensure higher reliability and increased efficiency in motor drives and other variable speed processes.

  • Fast recovery diode module

    Fast recovery diode module

Dynex FRD Products

The new Dynex fast recovery diode module range includes single and dual diodes rated at both 1.8 kV and 3.3 kV. The 1.8 kV variants include single diodes in an L footprint package (106 X 62 mm) with ratings of 300 A and 600 A, and dual diodes in an F footprint package (130 X 140 mm) with ratings of 600 A, 900 A and 1200 A per diode. The 3.3 kV variants include single diodes on the L footprint (62 X 106 mm) and P footprint (140 X 73 mm), both with ratings of 400 A, or dual diodes on an N footprint (130 X 140 mm) with ratings of 400 A, 800 A and 1200 A per diode.

FRD Applications

The new family of high-voltage fast recovery diode (FRD) modules has been designed for use in rail traction, industrial motor drives, induction heating and power generation. The FRD modules are designed to match and to work as the input rectifiers for the existing Dynex range of IGBT modules.

Product List

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1200V FRD Modules
AISiC Baseplate
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1200EXM12-A Triple Diode 1200 75 190 x 140 2.5 kV 3600 1.9 200 300 140 20
DFM1200FXM12-A Dual Diode 1200 75 140 x 130 2.5kV 2400 1.9 200 300 140 20
DFM900FXM12-A Dual Diode 900 75 140 x 130 2.5kV 1800 1.9 150 225 105 27
DFM600FXM12-A Dual Diode 600 75 140 x 130 2.5kV 1200 1.9 100 150 70 40
Copper Baseplate
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1200EXS12-A Triple Diode 1200 75 190 x 140 2.5kV 3600 1.9 200 300 140 20
DFM1200FXS12-A Dual Diode 1200 75 140 x 130 2.5kV 2400 1.9 200 300 140 20
DFM900FXS12-A Dual Diode 900 75 140 x 130 2.5kV 1800 1.9 150 225 105 27
DFM600FXS12-A Dual Diode 600 75 140 x 130 2.5kV 1200 1.9 100 150 70 40
1800V FRD Modules
AISiC Baseplate
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1200EXM18-A Triple Diode 1200 75 190 x 140 4kV 3600 2.0 480 540 360 20
DFM1200FXM18-A Dual Diode 1200 75 140 x 130 4kV 2400 2.0 480 540 360 20
DFM900FXM18-A Dual Diode 900 75 140 x 130 4kV 1800 2.0 270 410 270 27
DFM600FXM18-A Dual Diode 600 75 140 x 130 4kV 1200 2.0 120 160 120 40
3300V FRD Modules
TS Range
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1000AXM33-TS Triple Diode 1000 90 190 x 140 10.2kV 3000 2.4 320 1070 1300 24
DFM1000EXM33-TS Triple Diode 1000 90 190 x 140 6kV 3000 2.4 320 1070 1300 24
DFM1000NXM33-TS Dual Diode 1000 90 140 x 130 6kV 2000 2.4 320 1070 1300 24
DFM500NXM33-TS Dual Diode 500 90 140 x 130 6kV 1000 2.4 80 540 650 48
DFM500XXM33-TS001 Dual Diode 500 90 140 x 130 10.2kV 1000 2.4 80 285 335 48
DFM250PXM33-TS Series Diode Pair 250 90 140 x 73 6kV N/A 2.4 20 270 330 96
Fast Range
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1200NXM33-F Dual Diode 1200 70 140 x 130 6kV 2400 2.9 720 900 900 16
DFM800NXM33-F Dual Diode 800 70 140x130 6kV 1600 2.9 320 600 600 24
DFM400NXM33-F Dual Diode 400 70 140 x 130 6kV 800 2.9 80 300 300 48
DFM400PXM33-F Series Diode Pair 400 70 140 x 73 6kV N/A 2.9 80 300 300 48
DFM200PXM33-F Series Diode Pair 200 70 140 x 73 6kV N/A 2.9 20 125 130 96
DFM100PXM33-F Series Diode Pair 100 70 140 x 73 6kV N/A 2.9 5 65 65 192
4500V FRD Modules
TS Range
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM1200AXM45-TS Triple Diode 1200 65 190 x 140 7.4kV 3600 2.8 460 2200 4000 16
DFM1200AXM45-TS001 Triple Diode 1200 65 190 x 140 10.2kV 3600 2.8 460 2200 4000 16
DFM1200XXM45-TS Dual Diode 1200 65 140 x 130 7.4kV 2400 2.8 460 2200 4000 16
DFM1200XXM45-TS001 Dual Diode 1200 65 140 x 130 10.2kV 2400 2.8 460 2200 4000 16
DFM800XXM45-TS Dual Diode 800 65 140 x 130 7.4kV 1600 2.8 300 1450 2700 24
DFM800XXM45-TS001 Dual Diode 800 65 140 x 130 10.2kV 1600 2.8 300 1450 2700 24
DFM400XXM45-TS Dual Diode 400 65 140 x 130 7.4kV 800 2.8 150 750 1350 48
DFM400XXM45-TS001 Dual Diode 400 65 140 x 130 10.2kV 800 2.8 150 750 1350 48
Fast Range
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM900NXM45-F000 Dual Diode 900 80 140 x 130 6kV 1800 3.0 432 1300 1600 16
DFM600NXM45-F000 Dual Diode 600 80 140 x 130 6kV 1200 3.0 192 850 1050 24
DFM600XXM45-F000 Dual Diode 600 80 140 x 130 10.2kV 1200 3.0 192 850 1050 24
DFM450NXM45-F000 Dual Diode 450 80 140 x 130 6kV 900 3.0 108 650 800 32
6500V FRD Modules
TS Range
Part Number Configuration IF (A per arm) at TC (°C) Baseplate Dims (mm) Isolation Voltage IF (A as single diode with external connection) Vf@ Tvj =25 ºC I2t (kA2s) Qrr@ Tvj Erec@ Tvj Rth(j-c) (per arm) (°C/kW) PLECS Model More Info
DFM750AXM65-TS Triple Diode 750 60 190 x 140 10.2kV 2250 3.6 218 1500 3000 20
DFM750XXM65-TS Dual Diode 750 60 140 x 130 10.2kV 1500 3.6 200 1300 3000 20
DFM500XXM65-TS Dual Diode 500 60 140 x 130 10.2kV 1000 3.6 97 1000 2000 30
DFM250XXM65-TS Dual Diode 250 60 140 x 130 10.2kV 500 3.6 24 500 1000 60

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