DYNEX DF45216, DF45214, DF45212, DF45210, DF45208 Datasheet

DF452

DF452

Fast Recovery Diode

Replaces March 1998 version, DS4213-3.2 DS4213-4.0 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

DF452 16
DF452 14
DF452 12
DF452 10
DF452 08
DF452 06

1600
1400
1200
1000

800
600

CURRENT RATINGS

Conditions

= V

V

RSM

RRM

+ 100V

KEY PARAMETERS

V

RRM

I

F(AV)

I

FSM

Q

r

t

rr

Outline type code: M771.

See Package Details for further information.

1600V

540A

5000A

35µC

3.2µs

Symbol Parameter Conditions

Double Side Cooled

I

F(AV)

I

F(RMS)

I

Mean forward current

RMS value

F

Continuous (direct) forward current

Half wave resistive load, T

= 65oC 628 A

T

case

T

= 65oC-A

case

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

T

= 65oC-A

case

T

= 65oC-A

case

UnitsMax.

= 65oC 540 A

case

= 65oC-A

case

1/7

DF452

SURGE RATINGS

ParameterSymbol

FSM

FSM

Surge (non-repetitive) forward currentI

Surge (non-repetitive) forward currentI

2

t for fusingI2t

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 5.0kN
with mounting compound

= 150oC

RRM, Tj

RRM, Tj

dc

Cathode dc
Double side

Single side

= 150oC

Max. Units

5.0 kA

125 x 10

3

-kA

-A

Min.

- 0.07

- 0.147oC/W

0.02

-

- 0.04

A2sI2t for fusingI2t

o

C/W

o

C/W- 0.133Anode dc

o

C/W

o

C/W

2

sI

T

T

stg

Virtual junction temperature

vj

Storage temperature range -55 150

Forward (conducting) - 150

CHARACTERISTICS

Symbol Typ. Units

V

FM

I

RRM

t

rr

Q

RA1

I

RM

K

V

TO

Forward voltage

Peak reverse current
Reverse recovery time

Recovered charge (50% chord)
Reverse recovery current

Soft factor

Threshold voltage

Parameter

Conditions Max.

At 750A peak, T
At V

, T

RRM

case

= 25oC - 1.6 V

case

= 150oC-mA

40

3.2 -

= 200A, diRR/dt = 20A/µs

I

F

T

= 125oC, VR = 100V

case

-35µC

-43A

1.8 - -

At Tvj = 150oC - 1.0 V

o

o

kN5.54.5Clamping force-

µs

C
C

2/7

r

T

V

FRM

Slope resistance

At Tvj = 150oC - 0.8 mΩ

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

DF452

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

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