Westcode Semiconductors DF 24 Data Sheet

ICO

TORS

Technical
Publication

OF 24

ISSUE 2

May, 1989

Fast

Recovery

Stud-Base

25 amperes average: up

Ratings

RATING

Average forward current
R.M.S. current
D.C. forward current
Peak one-cycle surge

non-repetitive

Maximum surge

Operating temperature range
Storage

Characteristics

(Maximum

f2t

temperature range

(Maximum

values

at

Tj 150°C

values

Diode

to

1000 volts V

unless

CONDITIONS

Half sinewave lOooC case temperature

10

10

. I

sme pu se V

m.s.

. I I 60% V

sme pu

m.s.

3m.s. sine pulse

at

Tj

150°C

se

{60%

\ V

Type

stated

V

RRM

~

RM

'"

RRM

~

RM",

V

<

RM

unless

PCN/PCR024

RRM

otherwise)

re-applied max.

10

Volts

re-applied max.

10

Volts

10

volts

stated

SYMBOL

IF(AV)
IF(RMS)
IF

FSM

'

FSM

'

Ft (1)

2

1

t (2)

2

1

t

(3)

Tease
T

stg

otherwise)

(1)
(2)

-55+

-55+

25A
47A
47A

260A
300A

340A2s
450Ns

330Ns
150°C
150°C

CHARACTERISTIC

Peak forward voltage drop
Forward conduction threshold voltage
Forward conduction slope resistance
Peak reverse current
Thermal

Reverse recovered charge
Reverse recovery time

Reverse recovery time

VOL

*Repetitive voltage

Non-repetitive voltage V

"Maximum

Ordering

resistance

TAGE CODE

heatsink

to

Information

V

RRM

RSM

free air thermal resistance for which repetitive voltage ratings apply is

iii"

(Please

CONDITIONS

At

BOA

'FM

VRM=VRRM (max.)
Junction
Case

'FM = 5OA,

{

V

{'FM = lA,

VRM=50V

RM

to

heatsink

=50V

to

case

di/dt

di/dt

Tj=25°C

=25

02 04

200

300

quote

400

500

device

= 5 A//-Is

A/lAS

code

06

600

700

as

explained

08

800

900

SYMBOL

V

FM
Vo 1.2V
r

'RRM
Rth(j-c)

Rth(c-hs)

0,.,

t

,

f

t"

10

1000

'100

6°C/W

below

- 10

1.67V

5.8mfl
10mA

1.3°C/W

O.25°C/W

7.8°uC

2.

15/-1S

SOOns

digits)

S

FIXED BASIC

Typical

M

CODE

code:

SM06PCN024 = 600

•

VOLTAGE CODE

(see

VRRM

•

above)

stud-base diode

p

FIXED OUTLINE

with

stud cathode

CODE

C

BASE POLARITY

•

N-=cathode

R = anode

0

FIXED TYPE

CODE

2

4

NOTES

1.

ON

OPERATION

For rectangular wave operation, allowance
be

made

with

regard

to

the

maximum

case

temperature

the

average reverse switching dissipation and

rise in

junction

pulse. Failure

temperature

peak
of

the

device

which

is assumed

junction

Allowance
reverse

recovery.

switching

for

both

the

temperature per reverse

to

correct

for

both

rises could result in

to

may

withstand

to

be

made

power

the

be applied at

for

average and peak

dissipation as

heating caused

average and

full reverse voltage

permissible

power

the

the

instant

follows:

must

by

the

failure

of

switching

E/pulse/volt
joules) in
reverse applied voltage.

f is the frequency

V

RRM

voltage

llT

in

voltage per

losses has been made.

is the reverse energy (in

the

recovery period per

of

operation in

is

the repetitive peak reverse

J/volt

is the

junction

deg. C per

volt

of

reverse applied

reverse recovery pulse

volt

of

Hz

temperature rise

T CASE(2) = T CASE(1) -

-llTJ/volt

where:

~

Z 140

~

<l>

Q.

E

120

j!;

<l>

g;

100

(J

<l>

15

'",

80

.~

rr'

8.

60

x

l-

E 40

o

iE/pulse/volt)

V

RRM

T CASE(1) is the maximum permissible case

for

temperature

T CASE(2) is the maximum permissible case
temperature when

10 20

zero reverse losses.

allowance

6 phase

3

ph~se

f,VRRM

I ....

1 phase

30

for

reverse

RthIJ-C)

SINE WAVE 1

40

D~H-l

50

RthIJ-CI

2.

For sinusoidal operation,
expression
considerable safety
of

forward

at

the instant at

through

'"

~

140~:H-,_

ID

0.

.§

~

120._

100

80

60

x

ro

E

conductio~

40

o

=,39,

-+-,111-'1'

10

is

may

be used, and will

current

which

zero.

-f+

6090

1.3°C/W

the

factor.

The

may

be taken

the

forward

do

20 30

same derating

offer

a

commutation

as

that

current passes

~

SQUARE

1~0

I-

40

rate

obtaining

-l-:-~

WAVE

50

tl

70

;:

'"

c'

60

0

.

.,

50

0.

'"

'0;

'"

'6

40

"0

m

30

~

.2

20

E

::l

E

10

'x

'"

E 0

Figure

/[.,.<v

~

v.:

"'"'

....

V

o

mean

10 20

fOlWard current, amperes

1.

Dissipation

v.

current

6 phase

1:7'

and

(sine

k?

V

3 phase

L~

V

case

wave)

1 phase

V V

30

(whole

cycle

temperature

50Hz

V

40

average)

V-

<.J)

t:

C

-l

i

I

50

ro

~

r::

0

.

.,

m

0.

.~

'6

"0

(ij

~

.2

E

::l

E

'x

'"

E

70

60

50

40
30

20

10

0

Figure

i----

-~-

I--

f--

I

J

j.-

conduction

~IP

o

mean

forward

2.

Dissipation
v.

= 30

1/

I<%~

rh~

....::~

10 20

current, amperes

current

,I-

-

00

60

"/V

f./'

V

r.:::

v

and

case

(square

f-T--tt-

l

! !

180_

I;

V

120

v

/'

-

30

(whole

cycle average)

temperature

wave)

50Hz

v

40

3601

I

V

50