DYNEX DF25216, DF25214, DF25212, DF25210, DF25206 Datasheet

DF252

DF252

Fast Recovery Diode

Advance Information

Replaces March 1998 version, DS4142-3.4 DS4142-4.0 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

DF252 16
DF252 14
DF252 12
DF252 10
DF252 08
DF252 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

360A

3000A

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 560 A

T

case

T

= 65oC 500 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 435 A

case

T

= 65oC 375 A

case

= 65oC 360 A

case

= 65oC 276 A

case

UnitsMax.

1/8

DF252

SURGE RATINGS

ParameterSymbol

FSM

FSM

Surge (non-repetitive) forward currentI

Surge (non-repetitive) forward currentI

THERMAL AND MECHANICAL DATA

Symbol

R

th(j-c)

R

th(c-h)

Thermal resistance - junction to case

Thermal resistance - case to heatsink

Parameter

Conditions

10ms half sine; with 0% V

10ms half sine; with 50% V

Conditions Max. Units

Double side cooled

Single side cooled

Clamping force 3.5kN
with mounting compound

= 150oC

RRM, Tj

RRM, Tj

dc

Cathode dc
Double side

Single side

= 150oC

Max. Units

3.0 kA

45 x 10

2.4 kA

28.8 x 103A2sI2t for fusingI2t

Min.

- 0.07

- 0.147

-

- 0.04

0.02

3

A2sI2t for fusingI2t

o

C/W

o

C/W- 0.133Anode dc

o

C/W

o

C/W

o

C/W

T

T

stg

Virtual junction temperature

vj

Storage temperature range -55 150

On-state (conducting) - 150

4.03.0Clamping force-

o

o

kN

C
C

2/8

CHARACTERISTICS

DF252

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-50V

DEFINITION OF K FACTOR AND Q

Parameter

Q

= 0.5x IRR(t1 + t2)

RA1

RA1

Conditions Max.

At 450A peak, T
At V

, T

RRM

case

= 25oC - 1.6 V

case

= 125oC-mA

20

3.2 -

= 750A, diRR/dt = 100A/µs

I

F

T

= 125oC, VR = 100V

case

-35µC

-21A

1.5 - -

At Tvj = 150oC - 1.0 V

At T

= 150oC - 1.33 mΩ

vj

µs

dIR/dt

0.5x I

k = t

t

t

1

2

RR

I

RR

1/t2

τ

3/8