1

Rectifier Device Data

Advance Information

SWITCHMODE™ Power Rectifier

...using 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 V Blocking Voltage

• Low Forward Voltage Drop

• Guardring for Stress Protection

• 150°C Operating Junction Temperature

• Guaranteed Reverse Avalanche

Mechanical Characteristics

• Case: Epoxy, Molded

• Weight: 1.9 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 50 Units Per Plastic Tube

• Marking: B3045

MAXIMUM RATINGS

Rating

Symbol

Max

Unit

Peak Repetitive Reverse Voltage

Working Peak Reverse Voltage

DC Blocking Voltage

VRRM

VRWM

VR

45

Volts

Average Rectified Current

Per Device

TC = 130°C

Per Diode

IF(AV)

30

15

Amps

Peak Repetitive Forward Current, Per Diode (Square Wave, VR = 45 V, 20 kHz)

IFRM

30

Amps

Non Repetitive Peak Surge Current

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

IFSM

150

Amps

Peak Repetitive Reverse Current, Per Diode (2.0

µs, 1.0 kHz)

IRRM

2.0

Amps

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 (Rated VR)

dV/dt

10000

V/

µs

THERMAL CHARACTERISTICS PER DIODE

Thermal Resistance, Junction to Case

R

θJC

1.5

°C/W

ELECTRICAL CHARACTERISTICS PER DIODE

Instantaneous Forward Voltage (1)

(IF = 30 Amp, TC = 25°C)

(IF = 30 Amp, TC = 125°C)

(IF = 20 Amp, TC = 125°C)

VF

0.76

0.72

0.60

Volts

Instantaneous Reverse Current (1)

(VR = 45 Volts, TC = 25°C)

(VR = 45 Volts, TC = 125°C)

IR

0.2

40

mA

(1) Pulse Test: Pulse Width = 300

µs, Duty Cycle ≤ 2.0%

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.

Preferred devices are Motorola recommended choices for future use and best overall value.

Order this document

by MBR3045ST/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

3

12

4

MBR3045ST

SCHOTTKY BARRIER

RECTIFIER

30 AMPERES

45 VOLTS

CASE 221A–06, STYLE 6

(TO–220AB)

Motorola Preferred Device

1

3

4

2

Rev 1