1

Rectifier Device Data

Advance Information

SWITCHMODE™ Power Rectifier

The SWITCHMODE power rectifier employs the use of the Schottky Barrier

principle with a Platinum barrier metal. This state-of-the-art device has the

following features:

• Dual Diode Construction — Terminals 1 and 3 May Be

Connected for Parallel Operation at Full Rating

• 45 Volt Blocking Voltage

• Low Forward Voltage Drop

• Guardring for Stress Protection and High dv/dt Capability

(> 10 V/ns)

• Guaranteed Reverse Avalanche

• 150°C Operating Junction Temperature

Mechanical Characteristics

• Case: Epoxy, Molded

• Weight: 4.3 grams (approximately)

• Finish: All External Surfaces Corrosion Resistant and Terminal

Leads are Readily Solderable

• Lead Temperature for Soldering Purposes: 260°C Max. for 10

Seconds

• Shipped 30 Units Per Plastic Tube

• Marking: B4045

MAXIMUM RATINGS

Rating

Symbol

Max

Unit

Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage

DC Blocking Voltage

VRRM

VRWM

VR

45

Volt

Average Rectified Forward Current — Per Diode

(Rated VR) @ TC = 125°C

— Per Device

IF(AV)

20

40

Amp

Peak Repetitive Forward Current, Per Diode

(Rated VR, Square Wave, 20 kHz) @ TC = 90°C

IFRM

40

Amp

Non Repetitive Peak Surge Current

(Surge applied at rated load conditions halfwave, single phase, 60 Hz)

IFSM

400

Amp

Peak Repetitive Reverse Current (2.0

µs, 1.0 kHz)

IRRM

2.0

Amp

Operating Junction Temperature

TJ

– 65 to +150

°C

Storage Temperature

Tstg

– 65 to +175

°C

Peak Surge Junction Temperature (Forward Current Applied)

TJ(pk)

175

°C

Voltage Rate of Change

dv/dt

10,000

V/

µs

THERMAL CHARACTERISTICS

Thermal Resistance — Junction to Case

R

θJC

1.4

°C/W

SWITCHMODE is a trademark of Motorola, Inc.

This document contains information on a new product. Specifications and information herein are subject to change without notice.

Order this document

by MBR4045PT/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

3

1

2,4

MBR4045PT

SCHOTTKY BARRIER

RECTIFIER

40 AMPERES

45 VOLTS

CASE 340D–02

1

3

4

2

Rev 3