Westcode Semiconductors DF 26 Data Sheet

Technical
Publication

@WESTCODE@

DF

ISSUE 2

SEMICONDUCTORS

Fast Recovery Stud-Base Diode Type PCN/PCR026

May, 1989

26

25 amperes average:

Ratings

RATING

Average forward current
R.M.S. current
D.C. forward current

Peak

non-repetitive

Maximum surge 12t

Operating temperature range
Storage temperature range

Characteristics

(Maximum

one-cycle surge

values

(Maximum

up

to 400 volts V

at

Tj 150°C unless stated otherwise)

CONDITIONS

Half sinewave 100°C case temperature

10

10

values

. I { 60% V

sme pu

m.s.

m.s.

sme

3m.s. sine pulse

at

se

. I

pu

se

Tj 150°C unless stated otherwise)

V

{60%

VRM~

VRM~

~

RM""",

V

RRM

re-applied max.

RRM

10

Volts

re-applied max.

RRM

10

Volts

10

volts

SYMBOL

IF(AV)
IF(RMS)
IF

I

(1)

FSM

(2)

I

FSM

12t (1)
Ilt

(2)

12t

(3)

Tcase
T

stg

25A
47A
47A

2BOA
322A

392A

518A2
384A2s

-55+150oC

-55+

150°C

2

s

S

CHARACTERISTIC

Peak

forward voltage drop

V

RRM

V

voltage

...

RSM

Forward conduction threshold

CODE

to

slope resistance

free air thermal resistance

Forward conduction
Peak

reverse current

Thermal

Reverse recovered charge
Reverse recovery time VRM=50V

VOL

* Repetitive voltage

Non-repetitive voltage

*Maximum heatsink

resistance

TAGE

Ordering Information (Please

CONDITIONS

At

BOA

VRM=VRRM (max.)
Junction
Case

to

{IFM=50A,

02

200

300

for

which repetitive voltage ratings apply

quote

IFM

to

case

heatsink

di/dt=25

A/jJ.s

04

400

500

device code as explained

is

6°C/W

SYMBOL

V

FM

Vo
r

IRRM
R

thO

Rth(c-hs)

Orr
trr

below

1.67V

1.28V

4.9mQ
10mA

-c)

1.3°C/W

0.25°C/W

3.fil.iC
O.7Il

- 10 digits)

S

S

FIXED BASIC

CODE

Typical code: SM04PCN026 = 400 V

M

VOLTAGE CODE

•

(see above)

stud-base diode

RRM

•

p

FIXED OUTLINE

CODE

with

stud cathode

C

BASE POLARITY FIXED

•

N=cathode

R=anode

0

CODE

2

TYPE

6

NOTES ON OPERATION

1. For rectangular
be made
case temperature
the

average reverse

rise in

junction
pulse. Failure
peak temperature rises
of

the device

which

is assumed
junction

Allowance may be made
reverse

recovery.

switching

wave

operation, allowance

with

regard

to

the

for

both

switching

temperature per reverse

to

correct

to

withstand

could

to

be applied

power

for

for

dissipation

the

the

maximum

heating caused

dissipation and

both

result in

full reverse voltage

average and peak

permissible

power

average and

the

at

the

instant

as

follows:

failure

must

by

the

of

switching

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

f

is

V

RRM

voltage

AT

in deg. C per

voitage

losses has been made.

is

the

reverse energy (in

the

recovery period per

the

frequency

is

the

J/vo!t

is

per reverse recovery pulse

of

operation in Hz

repetitive peak reverse

the

junction

volt

of

reverse applied

volt

of

temperature rise

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

-ATJ/volt

where: T CASE(1) is

temperature

T CASE(2) is
temperature

u

o

(Xi

150

:;

~

a.

E

~

lJ)

co

'"

u

(I)

1i

'~

'E

Iii

a. 50

x

130

110

90

70

~

f::C'

E 30

o

t!

80

~

70

c·

o

60

''''

~

:~

50

~

40

~

30

£

E20

:::

,~

10

t,..

V

,....

1'1"'-

10

6 phase

k:;

~

IE/pulse/volt)

RRM

the

maximum

for

the

maximum

when

r"'~

R;

I"

i"-

1"-

1"-

1"-

sq.

wave

/~V'

~

I..)

3ph. sq. wave

3 phase sq, wave

6ph. sq. wave I

zero reverse losses.

allowance

t--..

f'.

~

I
I

20

1 phase sine wave

k:::

It:>"

V

E 0

o

mean forward current, amperes (whole cycle

10

20

f,VRRM

permissible case

permissible case

for

",f"

"-.

l"-

....

1ph. sine wave

i

30

V-

V

V
V

30

RthIJ-C)

reverse

i'-

,I--

40

V

V

40

average~

1-1-.

t--,

D-9

DC

2. For sinusoidal operation,
expression
considerable safety 'factor. The
of

forward

at

the

through

80

70

SQIU~RIIIVE

instant

Tj,='

may

be used, and will

current

at

zero,

150°C

which

,

V

vV'

I

//

i-I-

V

V-

/.v

/

' ,

r-

--

~I

60

I

i

V

1/

V

I

V

V

VV

I-

o

10

forward

1I

V

V

I

1,/

V

V

20 30 40 50 60 70 80 90 100

current, amperes

50

-

I--

50

50

<I'J

a;

'"

a.

~

~

rx:
rx:

C

~

:;

u

.:.<

~

C.

40

30

20

10

0

may

v

the

V

I

..--

the

same derating

be taken

forward

V

V

v

l-

r

offer

a

commutation

as

that

obtaining

current passes

dIR/dt,

300

1--)

.......

V

j.--'

200

I-

~

v

i-

100

50

11

I '

rate

AlIAs

I-- I--

l-

I--

l-

1

I--

Figure

1.

Dissipation

v.

current.

and

50Hz

case

temperature.

Figure

2.

Maximum
current

peak

v.

forward

reverse

current

recovery