1
Rectifier Device Data
. . . using the Schottky Barrier principle with a platinum barrier metal. These
state–of–the–art devices have the following features:
•Guardring for Stress Protection
•Low Forward Voltage
•150°C Operating Junction Temperature
•Guaranteed Reverse Avalanche
•Epoxy Meets UL94, VO at 1/8″
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: B735, B745
MAXIMUM RATINGS
Rating Symbol MBR735 MBR745 Unit
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
35 45 Volts
Average Rectified Forward Current (Rated VR)
TC = 105°CIF(AV) 7.5 7.5 Amps
Peak Repetitive Forward Current
(Rated VR, Square Wave, 20 kHz) TC = 105°CIFRM 15 15 Amps
Nonrepetitive Peak Surge Current
(Surge applied at rated load conditions halfwave, single phase, 60 Hz) IFSM 150 150 Amps
Peak Repetitive Reverse Surge Current
(2.0 µs, 1.0 kHz) IRRM 1.0 1.0 Amp
Operating Junction Temperature TJ
*
65 to +150
*
65 to +150 °C
Storage Temperature Tstg
*
65 to +175
*
65 to +175 °C
Voltage Rate of Change (Rated VR) dv/dt 1000 10000 V/µs
THERMAL CHARACTERISTICS
Maximum Thermal Resistance, Junction to Case RθJC 3.0 3.0 °C/W
Maximum Thermal Resistance, Junction to Ambient RθJA 60 60 °C/W
ELECTRICAL CHARACTERISTICS
Maximum Instantaneous Forward Voltage (1)
(iF = 7.5 Amps, TC = 125°C)
(iF = 15 Amps, TC = 125°C)
(iF = 15 Amps, TC = 25°C)
vF0.57
0.72
0.84
0.57
0.72
0.84
Volts
Maximum Instantaneous Reverse Current (1)
(Rated dc Voltage, TC = 125°C)
(Rated dc Voltage, TC = 25°C)
iR15
0.1 15
0.1
mA
(1) Pulse Test: Pulse Width = 300 µs, Duty Cycle ≤2.0%.
SWITCHMODE is a trademark of Motorola, Inc.
Preferred devices are Motorola recommended choices for future use and best overall value.
Motorola, Inc. 1996
Order this document
by MBR735/D
SEMICONDUCTOR TECHNICAL DATA
31, 4
SCHOTTKY BARRIER
RECTIFIERS
7.5 AMPERES
35 and 45 VOLTS
CASE 221B–03
TO–220AC
MBR745 is a
Motorola Preferred Device
1
3
4
Rev 1
2Rectifier Device Data
Figure 1. Typical Forward Voltage Figure 2. Typical Reverse Current
Figure 3. Current Derating, Case Figure 4. Current Derating, Ambient
Figure 5. Power Dissipation
0.60.2
iF, INSTANTANEOUS FORWARD VOLTAGE (VOLTS)
50
30
20
10
VR, REVERSE VOLTAGE (VOLTS)
0
0.001
100
TC, CASE TEMPERATURE (
°
C)
5.0
2.0
1.0
0
TA, AMBIENT TEMPERATURE (
°
C)
200
8.0
6.0
4.0
2.0
040
4.0 8.00
IF(AV), AVERAGE FORW ARD CURRENT (AMPS)
4.0
3.0
2.0
1.0
06.0
iF, INSTANTANEOUS FORWARD CURRENT (AMPS)
I
I
IF(AV), A VERAGE FORWARD CURRENT (AMPS)
7.0
5.0
1.0
1.20.4 0.8 10 20 30 40
0.1
1.0
120 130 140 150 60 80 160
P
10 2012
7.0
0.7
0.5 1.0 50
, REVERSE CURRENT (mA)
R
10
100
, A VERAGE FORWARD CURRENT (AMPS)
F(AV)
2.0 14 16 18
5.0
6.0
180
°
SQUARE W AVE
dc
180
°
SQUARE W AVE
dc
TJ = 125
°
C
75
°
C25
°
CTJ = 150
°
C
125
°
C
100
°
C
0.01 25
°
C
4.0
3.0
6.0
8.0
7.0 7.0
5.0
3.0
1.0
100 120 140
, A VERAGE FORWARD POWER
F(AV)
75
°
C
RATED VOLTAGE APPLIED
dc
RATED VOLTAGE APPLIED
R
q
JC = 3.0
°
C/W
R
q
JA = 16
°
C/W
R
q
JA = 60
°
C/W
(No Heat Sink)
dc
110
3.0
2.0
DISSIPATION (WATTS)
180
°
X
180
°
3
Rectifier Device Data
PACKAGE DIMENSIONS
CASE 221B–03
(TO–220AC)
ISSUE B
B
R
J
D
G
L
H
Q
T
U
A
K
CS
4
13
DIM MIN MAX MIN MAX
MILLIMETERSINCHES
A0.595 0.620 15.11 15.75
B0.380 0.405 9.65 10.29
C0.160 0.190 4.06 4.82
D0.025 0.035 0.64 0.89
F0.142 0.147 3.61 3.73
G0.190 0.210 4.83 5.33
H0.110 0.130 2.79 3.30
J0.018 0.025 0.46 0.64
K0.500 0.562 12.70 14.27
L0.045 0.060 1.14 1.52
Q0.100 0.120 2.54 3.04
R0.080 0.110 2.04 2.79
S0.045 0.055 1.14 1.39
T0.235 0.255 5.97 6.48
U0.000 0.050 0.000 1.27
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
F
4Rectifier Device Data
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the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and
specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
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MBR735/D
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