Philips Semiconductors

Product specification

Dual rectifier diodes

BYT28 series

ultrafast

FEATURES

SYMBOL

QUICK REFERENCE DATA

• Low forward volt drop

V

• Fast switching

• Soft recovery characteristic

V

• High thermal cycling performance

• Low thermal resistance

I

t

GENERAL DESCRIPTION

PINNING

SOT78 (TO220AB)

Dual, common cathode, ultra-fast,

PIN

DESCRIPTION

epitaxial rectifier diodes intended

for use as output rectifiers in high

1

cathode

frequency switched mode power

supplies.

2

anode

The BYT28 series is supplied in the

tab

cathode

conventional

leaded

SOT78

(TO220AB) package.

LIMITING VALUES

Limiting values in accordance with the Absolute Maximum System (IEC 134).

SYMBOL

PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

BYT28

-300

-400

-500

V

RRM

Repetitive peak reverse voltage

-

300

400

500

V

V

R

Continuous reverse voltage

T

-

300

400

500

V

I

O(AV)

Average rectified output current square wave;

δ = 0.5;

-

10

A

(both diodes conducting)

1

T

I

FSM

Non-repetitive peak forward

t = 10 ms

-

50

A

current per diode.

t = 8.3 ms

-

55

A

sinusoidal; with reapplied

V

RRM(max)

T

stg

Storage temperature

-40

150

˚C

T

j

Operating junction temperature

-

150

˚C

THERMAL RESISTANCES

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

R

th j-hs

Thermal resistance junction to

per diode

-

-

4.5

K/W

heatsink

both diodes conducting

-

-

3.0

K/W

R

th j-a

Thermal resistance junction to

in free air.

-

60

-

K/W

ambient

k

a1

a2

13

2

12 3

tab

1 Neglecting switching and reverse current losses.

October 1998

1

Rev 1.400