Bulletin PD-2.318 rev. D 05/04
MBR15..CT
MBRB15..CT
MBR15..CT-1
SCHOTTKY RECTIFIER
15 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 7.5 Apk, T
J
= 125°C
Description/ Features
The MBR15..CT center tap Schottky rectifier has been opti-
mized for low reverse leakage at high temperature. The
proprietary barrier technology allows for reliable operation up
to 150° C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
150° C T
J
operation
Center tap TO-220 package
Low forward voltage drop
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
MBR15..CT Units
15
35/45
690
0.57
- 65 to 150
A
V
A
V
°C
Case Styles
MBR15..CT
MBRB15..CT
MBR15..CT-1
Base
Common
Cathode
2
Base
Common
Cathode
2
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
1
Anode
Anode
2
Common
Cathode
3
1
Anode
Anode
2
Common
Cathode
3
Anode
TO-220
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D
2
PAK
TO-262
1
MBR15..CT, MBRB15..CT, MBR15..CT-1
Bulletin PD-2.318 rev. D 05/04
Voltage Ratings
Parameters
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
MBR1535CT
MBRB1535CT
MBR1535CT-1
MBR1545CT
MBRB1545CT
MBR1545CT-1
35
45
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Aver. Forward Current (Per Leg)
(Per Device)
I
FSM
Max. Peak One Cycle Non Repetitive
Surge
150
E
AS
I
AR
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
(Per Leg)
7
2
mJ
A
Value
7.5
15
690
Units
A
Conditions
@ T
C
= 131 °C (Rated V
R
)
5µs Sine or 3µs Rect. pulse
Following any rated load
condition and with rated
V
RRM
applied
Surge applied at rated load condition halfwave single
phase 60Hz
Current decaying linearly to zero in 1 µsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
(Per Leg) T
J
= 25 °C, I
AS
= 2 Amps, L = 3.5 mH
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(1)
I
RM
C
T
L
S
Max. Instantaneus Reverse Current
(1)
Max. Junction Capacitance
Typical Series Inductance
Value
0.84
0.57
0.72
0.1
15
400
8.0
10000
Units
V
V
V
mA
mA
pF
nH
V/ µs
@ 15A
@ 7.5A
@ 15A
Conditions
T
J
= 25 °C
T
J
= 125 °C
Rated DC voltage
T
J
= 25 °C
T
J
= 125 °C
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25°C
Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle <2%
Value
-65 to 150
-65 to 175
3.0
0.50
60
2 (0.07)
Min.
Max.
6 (5)
12 (10)
Units
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case
(Per Leg)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
R
thJA
Max. Thermal Resistance Junction
wt
T
Approximate Weight
Mounting Torque
Device Marking
°C/W DC operation
°C/W Mounting surface, smooth and greased
°C/W DC operation
g (oz.)
Kg-cm
(Ibf-in)
Case style TO-220
Case style D
2
Pak
Case style TO-262
MBR15..CT
MBRB15..CT
MBR15..CT-1
2
www.irf.com
MBR15..CT, MBRB15..CT, MBR15..CT-1
Bulletin PD-2.318 rev. D 05/04
100
100
Reverse Current - I
R
(mA)
10
1
0.1
0.01
T J = 150˚C
125˚C
100˚C
75˚C
50˚C
25˚C
Instantaneous Forward Current - I
F
(A)
0.001
0.0001
0
10
T = 150˚C
J
T = 125˚C
J
5
10 15 20 25 30 35 40 45
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitance - C
T
(p F)
T = 25˚C
J
T = 25˚C
J
1
0
0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
Forward Voltage Drop - V
FM
(V)
2
100
0
10
20
30
40
50
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
10
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
(°C/W)
Thermal Impedance Z
thJC
1
0.1
t1
t2
0.01
Single Pulse
(Thermal Resistance)
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.001
0.00001
0.0001
0.001
0.01
0.1
1
10
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
MBR15..CT, MBRB15..CT, MBR15..CT-1
Bulletin PD-2.318 rev. D 05/04
150
Allowable Case Temperature (°C)
Average Power Loss (Watts)
7
6
5
4
3
2
1
0
0
2
4
6
8
10
12
Average Forward Current - I
F(AV)
(A)
140
DC
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
RMS Limit
DC
130
Square Wave (D = 0.50)
Rated Vr Applied
see note (2)
120
0
2
4
6
8
10
12
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current
Non-Repetitive Surge Current - I
FSM
(A)
1000
At Any Rated Load Condition
And With Rated Vrrm Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t
p
(microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
(2)
Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= rated V
R
4
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MBR15..CT, MBRB15..CT, MBR15..CT-1
Bulletin PD-2.318 rev. D 05/04
Outline Table
10.54 (0.41)
MAX.
3.78 (0.15)
3.54 (0.14)
15.24 (0.60)
14.84 (0.58)
1 2 3
14.09 (0.55)
13.47 (0.53)
3.96 (0.16)
3.55 (0.14)
2.04 (0.080) MAX.
1.40 (0.05)
1.15 (0.04)
0.94 (0.04)
0.69 (0.03)
2.89 (0.11)
2.64 (0.10)
0.10 (0.004)
Base
Common
Cathode
2
1.32 (0.05)
DIA.
6.48 (0.25)
6.23 (0.24)
2°
1.22 (0.05)
2.92 (0.11)
2.54 (0.10)
TERM 2
1 2 3
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) MAX.
1
Anode
2
Common
Cathode
3
Anode
5.08 (0.20) REF.
Conform to JEDEC outline TO-220AB
Dimensions in millimeters and (inches)
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
Anode
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5
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