DYNEX DF65434, DF65432, DF65430, DF65435 Datasheet

DF654

DF654

Fast Recovery Diode

Replaces March 1998 version, DS4214-3.5 DS4214-4.0 January 2000

APPLICATIONS

■ Induction Heating

■ A.C. Motor Drives

■ Inverters And Choppers

■ Welding

■ High Frequency Rectification

■ UPS

FEATURES

■ Double Side Cooling

■ High Surge Capability

■ Low Recovery Charge

VOLTAGE RATINGS

Type Number Repetitive Peak

Reverse Voltage

V

RRM

V

DF654 35
DF654 34
DF654 32
DF654 30

3500
3400
3200
3000

Conditions

= V

V

RSM

RRM

+ 100V

KEY PARAMETERS

V
I

F(AV)

I

FSM

Q
t

rr

RRM

r

3500V

675A

6000A
900µC

6.5µs

Lower voltage grades available.

See Package Details 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 1060 A

T

case

T

= 65oC 960 A

case

Half wave resistive load, T

T

= 65oC 690 A

case

T

= 65oC 600 A

case

Outline type code: M779b.

= 65oC 675 A

case

= 65oC 440 A

case

UnitsMax.

1/7

DF654

SURGE RATINGS

ParameterSymbol

FSM

FSM

Surge (non-repetitive) forward currentI

Surge (non-repetitive) forward currentI

THERMAL AND MECHANICAL DATA

Symbol Parameter

R

th(j-c)

th(c-h)

T

T

stg

Thermal resistance - junction to case

Thermal resistance - case to heatsinkR

Virtual junction temperature

vj

Storage temperature range -55 150

Conditions

Max. Units

6.0 kA

10ms half sine; with 0% V

RRM, Tj

= 150oC

180 x 10

4.8 kA

10ms half sine; with 50% V

RRM, Tj

= 150oC

115 x 10

Conditions Max. Units

Double side cooled

dc

Min.

- 0.045

Single side cooled

- 0.095

0.01

-

- 0.02

Clamping force 10kN
with mounting compound

Cathode dc
Double side

Single side

Forward (conducting) - 150

3

A2sI2t for fusingI2t

3

A2sI2t for fusingI2t

o

C/W

o

C/W- 0.086Anode dc

o

C/W

o

C/W

o

C/W

o

C

o

C

11.09.0Clamping 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

r

T

V

FRM

Threshold voltage

Slope resistance

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

Parameter

Conditions Max.

At 1500A peak, T
At V

, T

RRM

= 150oC-mA

case

= 25oC - 2.4 V

case

60

- 6.5

= 1000A, diRR/dt = 100A/µs

I

F

T

= 150oC, VR = 100V

case

- 900 µC

- 300 A

---

At Tvj = 150oC - 1.1 V

At Tvj = 150oC - 0.9 mΩ

kN

µs

2/7

DF654

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

3000

2500

- (A)

F

Measured under pulse conditions

RA1

τ

2000

Tj = 150˚C

1500

Instantaneous forward current I

1000

Tj = 25˚C

500

1.5 2.0 2.5 3.0 3.5
Instantaneous forward voltage V

- (V)

F

Fig.1 Maximum (limit) forward characteristics

3/7