1Rectifier Device Data
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°CIFRM 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 RθJC 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 MBR4045WT/D
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1996
3
1
2,4
SCHOTTKY BARRIER
RECTIFIER
40 AMPERES
45 VOLTS
CASE 340K–01
TO–247AC
1
3
2
Rev 3
MBR4045WT
2Rectifier Device Data
ELECTRICAL CHARACTERISTICS
Rating Symbol Max Unit
Instantaneous Forward Voltage (1)
@ IF = 20 Amps, TC = 25°C
@ IF = 20 Amps, TC = 125°C
@ IF = 40 Amps, TC = 25°C
@ IF = 40 Amps, TC = 125°C
VF0.70
0.60
0.80
0.75
Volts
Instantaneous Reverse Current (1)
@ Rated DC Voltage, TC = 25°C
@ Rated DC Voltage, TC = 100°C
IR1.0
50
mA
(1) Pulse Test: Pulse Width = 300 µs, Duty Cycle < 2.0%
TYPICAL ELECTRICAL CHARACTERISTICS
Figure 1. Typical Forward Voltage Figure 2. Typical Reverse Current
Figure 3. Typical Capacitance Per Leg Figure 4. Current Derating Per Leg
VR, REVERSE VOLTAGE (VOLTS)
IR, REVERSE CURRENT (mA)
vF, INSTANTANEOUS FORWARD VOLTAGE (mV)
iF, INSTANTANEOUS FORW ARD CURRENT (AMPS)
VR, REVERSE VOLTAGE (VOLTS)
C, CAPACITANCE (pF)
TC, CASE TEMPERATURE (
°
C)
IF(AV), A VERAGE FORWARD CURRENT (AMPS)
100
10
1800700600500400300200100
TC = 150
°
C
TC = 100
°
CTC = 25
°
C
TC = 150
°
C
TC = 100
°
C
TC = 25
°
C
100
01020304050
10
1
0.1
0.01
10000
1
1000
100 10 100
30
100
25
20
15
10
5
0110 120 130 140 150 160
SQUARE W AVE
(VR = 45 V)
DC
MBR4045WT
3Rectifier Device Data
PACKAGE DIMENSIONS
CASE 340K–01
ISSUE O
STYLE 2:
PIN 1. ANODE 1
2. CATHODE(S)
3. ANODE 2
4. CATHODE(S)
R
P
A
K
V
F
DG
UL
E
0.25 (0.010) MTBM
0.25 (0.010) MYQS
JH
C
4
123
–T–
–B–
–Y–
–Q–
DIM MIN MAX MIN MAX
INCHESMILLIMETERS
A19.7 20.3 0.776 0.799
B15.3 15.9 0.602 0.626
C4.7 5.3 0.185 0.209
D1.0 1.4 0.039 0.055
E1.27 REF 0.050 REF
F2.0 2.4 0.079 0.094
G5.5 BSC 0.216 BSC
H2.2 2.6 0.087 0.102
J0.4 0.8 0.016 0.031
K14.2 14.8 0.559 0.583
L5.5 NOM 0.217 NOM
P3.7 4.3 0.146 0.169
Q3.55 3.65 0.140 0.144
R5.0 NOM 0.197 NOM
U5.5 BSC 0.217 BSC
V3.0 3.4 0.118 0.134
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: MILLIMETER.
MBR4045WT
4Rectifier Device Data
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MBR4045WT/D
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