DYNEX NDF65316, NDF65310, NDF65314 Datasheet

NDF653

NDF653

Fast Recovery Diode

Replaces March 1998 version, DS4203 - 3.0 DS4203-4.0 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

NDF653 16
NDF653 14
NDF653 12
NDF653 10

1600
1400
1200
1000

Conditions

= V

V

RSM

RRM

+ 100V

KEY PARAMETERS

V
I

F(AV)

I

FSM

Q
t

rr

RRM

r

1600V

660A

6500A

45µC

1.4µs

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 1030 A

T

case

T

= 65oC 870 A

case

Half wave resistive load, T

T

= 65oC 770 A

case

T

= 65oC 625 A

case

Outline type code: CB479.

= 65oC 660 A

case

= 65oC 490 A

case

UnitsMax.

1/7

NDF653

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 10kN
with mounting compound

= 125oC

RRM, Tj

= 125oC

RRM, Tj

Min.

dc

- 0.03

Cathode dc - 0.063
Double side

Single side

-

- 0.02oC/W

Max. Units

6.5 kA

211 x 10

3

5.2 kA

13.52 x 103A2sI2t for fusingI2t

0.01

A2sI2t for fusingI2t

o

C/W

o

C/W- 0.058Anode dc

o

C/W

o

C/W

T

T

stg

Virtual junction temperature

vj

Storage temperature range -55 175

On-state (conducting) - 125

11.09.0Clamping force-

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 450A peak, T
At V

, T

RRM

case

= 25oC - 2.65 V

case

= 125oC-mA

- 1.4

= 500A, diRR/dt = -80A/µs

I

F

T

= 125oC, VR = 100V

case

-45µC

-60A

1.8 - -

At T

= 125oC - 1.7 V

vj

100

o

o

kN

µs

C
C

2/7

r

T

V

FRM

Slope resistance

At Tvj = 125oC - 1.7 mΩ

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

NDF653

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

3000

Measured under pulse conditions

RA1

τ

- (A)

2500

F

2000

Tj = 125˚C

Tj = 25˚C

1500

Instantaneous forward current I

1000

500

1.0 2.0 3.0 4.0 5.0
Instantaneous forward voltage V

- (V)

F

Fig.1 Maximum (limit) forward characteristics

3/7