Philips Semiconductors

Product specification

Rectifier diodes

PBYR2545CT, PBYR2545CTB series

Schottky barrier

FEATURES

SYMBOL

QUICK REFERENCE DATA

• Low forward volt drop

V

• Fast switching

• Reverse surge capability

I

• High thermal cycling performance

• Low thermal resistance

V

GENERAL DESCRIPTION

Dual, common cathode schottky rectifier diodes in a conventional leaded plastic package and a surface mounting

plastic package. Intended for use as output rectifiers in low voltage, high frequency switched mode power supplies.

The PBYR2545CT series is supplied in the SOT78 conventional leaded package.

The PBYR2545CTB series is supplied in the SOT404 surface mounting package.

PINNING

SOT78 (TO220AB)

SOT404

PIN

DESCRIPTION

1

anode 1 (a)

2

cathode (k)

1

3

anode 2 (a)

tab

cathode (k)

LIMITING VALUES

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

SYMBOL PARAMETER

CONDITIONS

MIN.

MAX.

UNIT

PBYR25

40CT

45CT

PBYR25

40CTB

45CTB

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 rectified forward

square wave;

δ = 0.5;

-

30

A

current (both diodes

T

conducting)

2

I

FRM

Repetitive peak forward

square wave;

δ = 0.5;

-

30

A

current per diode

T

I

FSM

Non-repetitive peak forward

t = 10 ms

-

180

A

current per diode

t = 8.3 ms

-

200

A

sinusoidal; T

surge; with reapplied V

RRM(max)

I

RRM

Peak repetitive reverse

pulse width and repetition rate

-

1

A

surge current per diode

limited by T

j max

T

j

Operating junction

-

150

˚C

temperature

T

stg

Storage temperature

- 65

175

˚C

1. It is not possible to make connection to pin 2 of the SOT404 package.

2. SOT78 package. For output currents greater than 20A the cathode connection should be made to the metal

mounting tab.

k

a1

a2

13

2

13

tab

2

12 3

tab

October 1998

1

Rev 1.400