DYNEX DSF21035SV35, DSF21035SV34, DSF21035SV32, DSF21035SV30 Datasheet

DSF21035SV

DSF21035SV

Fast Recovery Diode

Advance Information

Replaces March 1998 version, DS4176-1.4 DS4176-2.0 January 2000

APPLICATIONS

■ Freewheel Diode

■ Antiparallel Diode

■ Inverters

■ Choppers

FEATURES

■ Double Side Cooling

■ High Surge Capability

■ Low Recovery Charge

VOLTAGE RATINGS

Type Number Repetitive Peak

Reverse Voltage

V

RRM

V

DSF21035SV35
DSF21035SV34
DSF21035SV32
DSF21035SV30

3500
3400
3200
3000

Conditions

V

= V

RSM

RRM

+ 100V

KEY PARAMETERS

V
I

F(AV)

I

FSM

Q
t

rr

RRM

r

3500V

3000A

20000A
1500µC

6.0µs

Lower voltage grades available.

See package outlines for further information.

CURRENT RATINGS

Symbol Parameter Conditions

Double Side Cooled

I

F(AV)

I

F(RMS)

I

F

Mean forward current

RMS value

Continuous (direct) forward current

Single Side Cooled (Anode side)

I

F(AV)

I

F(RMS)

I

F

Mean forward current

RMS value

Continuous (direct) forward current

Half wave resistive load, T

= 65oC 4710 A

T

case

T

= 65oC 4480 A

case

Half wave resistive load, T

T

= 65oC 3100 A

case

T

= 65oC 2845 A

case

Outline type code: V.

= 65oC 3000 A

case

= 65oC 1970 A

case

UnitsMax.

1/7

DSF21035SV

SURGE RATINGS

ParameterSymbol

FSM

FSM

Surge (non-repetitive) forward currentI

Surge (non-repetitive) forward currentI

THERMAL AND MECHANICAL DATA

Symbol Parameter

R

R

th(j-c)

th(c-h)

Thermal resistance - junction to case

Thermal resistance - case to heatsink

Conditions

10ms half sine; with 0% V

10ms half sine; with 50% V

Conditions Max. Units

Double side cooled

Single side cooled

Clamping force 40.0kN
with mounting compound

= 150oC

RRM, Tj

RRM, Tj

dc

Cathode dc
Double side

Single side

= 150oC

Max. Units

20 kA

2.0 x 10

16 kA

1.28 x 106A2sI2t for fusingI2t

Min.

- 0.0075

- 0.015

0.002

-

- 0.004

6

A2sI2t for fusingI2t

o

C/W

o

C/W- 0.015Anode dc

o

C/W

o

C/W

o

C/W

T

T

stg

Virtual junction temperature

vj

Storage temperature range -55 175

On-state (conducting) - 150

44.036.0Clamping force-

CHARACTERISTICS

Symbol Typ. Units

V

FM

I

RRM

t

rr

Q

RA1

I

RM

Forward voltage

Peak reverse current
Reverse recovery time

Recovered charge (50% chord)
Reverse recovery current

K Soft factor

V

TO

Threshold voltage

Parameter

Conditions Max.

At 3000A peak, T
At V

, T

RRM

= 150oC-mA

case

= 25oC - 2.3 V

case

150

6.0 -

= 1000A, diRR/dt = 100A/µs

I

F

T

= 150oC, VR = 100V

case

- 1500 µC

500 - A

1.8 - -

At Tvj = 150oC - 1.05 V

o

o

kN

µs

C
C

2/7

r

T

V

FRM

Slope resistance

At Tvj = 150oC - 0.33 mΩ

Forward recovery voltage di/dt = 1000A/µs, Tj = 125oC-75V

DSF21035SV

DEFINITION OF K FACTOR AND Q

Q

= 0.5x IRR(t1 + t2)

RA1

dIR/dt

0.5x I

t

1

RR

I

RR

k = t

t

2

1/t2

CURVES

3500

Measured under pulse conditions

3000

RA1

τ

- (A)

2500

F

2000

Tj = 150˚C

1500

Instantaneous forward current I

Tj = 25˚C

1000

500

1.0 1.5 2.0 2.5 3.0
Instantaneous forward voltage V

- (V)

F

Fig.1 Maximum (limit) forward characteristics

3/7