Philips Semiconductors

Product specification

Rectifier diodes

PBYR4045WT series

Schottky barrier

FEATURES

SYMBOL

QUICK REFERENCE DATA

• Low forward volt drop

• Fast switching

V

• Reverse surge capability

• High thermal cycling performance

I

• Low thermal resistance

V

GENERAL DESCRIPTION

PINNING

SOT429 (TO247)

Dual, common cathode schottky

PIN

DESCRIPTION

rectifier

diodes

in

a

plastic

envelope. Intended for use as

1

anode 1 (a)

output rectifiers in low voltage, high

frequency switched mode power

2

cathode (k)

supplies.

3

anode 2 (a)

The

PBYR4045WT

series

is

supplied in the conventional leaded

tab

cathode

SOT429 (TO247) package.

LIMITING VALUES

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

SYMBOL PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

PBYR40

40WT

45WT

V

RRM

Peak repetitive reverse

-

40

45

V

voltage

V

RWM

Working peak reverse

-

40

45

V

voltage

V

R

Continuous reverse voltage

T

-

40

45

V

I

O(AV)

Average output current (both square wave;

δ = 0.5; T

-

40

A

diodes conducting)

I

FRM

Repetitive peak forward

square wave;

δ = 0.5; T

-

40

A

current

I

FSM

Non-repetitive peak forward

t = 10 ms

-

300

A

current

t = 8.3 ms

-

325

A

sinusoidal; T

surge; with reapplied V

RRM(max)

I

RRM

Peak repetitive reverse

pulse width and repetition rate

-

2

A

surge current

limited by T

j max

T

j

Operating junction

-

150

˚C

temperature

T

stg

Storage temperature

- 65

150

˚C

THERMAL RESISTANCES

SYMBOL PARAMETER

CONDITIONS

MIN.

TYP. MAX. UNIT

R

th j-mb

Thermal resistance junction

per diode

-

-

1.4

K/W

to mounting base

both diodes

-

-

1

K/W

R

th j-a

Thermal resistance junction

in free air

-

45

-

K/W

to ambient

k

a1

a2

13

2

2

3

1

December 1998

1

Rev 1.000