Bulletin PD-2.321 rev. I 08/02
MBR20...CT
MBRB20...CT
MBR20...CT-1
SCHOTTKY RECTIFIER
20 Amp
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular waveform
(Per Device)
I
FRM
@ T
C
= 133°C
(Per Leg)
V
RRM
I
FSM
@ tp = 5 µs sine
V
F
T
J
@ 10 Apk, T
J
= 125°C
range
20
80/90/100
850
0.70
- 65 to 150
A
V
A
V
°C
Description/ Features
Units
A
This center tap Schottky rectifier has been optimized 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, D
2
Pak and TO-262 packages
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
Values
20
Case Styles
MBR20...CT
MBRB20...CT
MBR20...CT-1
TO-220
D
2
PAK
TO-262
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1
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
Voltage Ratings
Parameters
Max. DC Reverse Voltage (V)
V
R
V
RWM
Max. Working Peak Reverse Voltage (V)
MBR2080CT
MBRB2080CT
MBR2080CT-1
MBR2090CT
MBRB2090CT
MBR2090CT-1
MBR20100CT
MBRB20100CT
MBR20100CT-1
80
90
100
Absolute Maximum Ratings
Parameters
I
F(AV)
Max.AverageForward (PerLeg)
Current
(PerDevice)
I
FRM
Peak Repetitive Forward
Current
(Per Leg)
I
FSM
Non Repetitive Peak
Surge Current
I
RRM
E
AS
Peak Repetitive Reverse
Surge Current
Non-Repetitive Avalanche Energy
(Per Leg)
Values
10
20
20
850
150
0.5
24
Units
A
A
Conditions
@ T
C
= 133° C, (Rated V
R
)
Rated V
R
, square wave, 20kHz
T
C
= 133° C
5µs Sine or 3µs Following any rated load condition
and with rated V
RRM
applied
Rect. pulse
Surge applied at rated load conditions halfwave,
single phase, 60Hz
2.0 µsec 1.0 KHz
T
J
= 25 °C, I
AS
= 2 Amps, L = 12 mH
A
A
mJ
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(1)
Values
0.80
0.95
0.70
0.85
Units
V
V
V
V
mA
mA
V
mΩ
Conditions
@ 10A
@ 20A
@ 10A
@ 20A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
Rated DC voltage
I
RM
Max. Instantaneus Reverse Current
(1)
0.10
6
0.433
15.8
400
8.0
10,000
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance
Typical Series Inductance
(Rated V
R
)
pF
nH
V/ µs
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
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
Values
-65 to 150
-65 to 175
2.0
0.50
50
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 to Ambient
wt
T
Approximate Weight
Mounting Torque
°C/W DC operation
°C/W Mounting surface, smooth and greased
Only for TO-220
°C/W DC operation
For D
2
Pak and TO-262
g (oz.)
Kg-cm Non-lubricated threads
(Ibf-in)
2
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MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
100
10 0
10
1
0.1
0 .01
0.0 01
0 .00 0 1
0
20
40
60
80
100
Reverse V olta ge - V
R
(V )
25 C
Reverse C urren t - I
R
(m A )
T
J
= 15 0 C
125 C
100 C
75 C
50 C
Instantaneous Forw ard C urrent - I
F
(A)
T
J
= 15 0 C
T
J
= 12 5 C
T
J
= 25 C
10
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1 000
(pF)
Jun ction C a p acitan ce - C
T
J
= 25 C
T
100
1
0 .2
10
0 .4
0.6
0.8
1
1 .2
1 .4
1.6
1.8
0
20
40
60
80
10 0
Forw a rd V olta ge D rop - V
FM
(V )
Reverse V oltag e - V
R
(V )
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
10
Th er m al Im p eda n ce Z
thJC
( C /W )
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
1
D
D
D
D
D
=
=
=
=
=
0 .7 5
0 .5 0
0 .3 3
0 .2 5
0 .2 0
P
D M
0 .1
Sin g le Pu lse
(The rm a l R e sista n c e)
0.0 1
0.0 00 0 1
Notes:
t1
t2
1. D uty fa ctor D = t 1/ t 2
2. Pea k T
J
= P
D M
x Z
thJC
+ T
C
0.0 1
0.1
1
10
0.0 00 1
0 .0 0 1
t 1 , R e cta n g ula r P u lse D ura tio n (Seco nd s)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
15 0
A llow ab le C a se Tem p era ture - ( C )
Averag e Pow er Loss - (W a tts)
10
D
D
D
D
D
=
=
=
=
=
0 .20
0 .25
0 .33
0 .50
0 .75
DC
RM S Lim it
4
14 0
DC
8
13 0
6
12 0
Sq ua re w ave (D = 0.50)
Rated V
R
ap plied
11 0
see note (2)
2
10 0
0
2
4
6
8
10
12
14
16
A vera ge Forw a rd C urren t - I
F(A V)
(A)
0
0
2
4
6
8
10
12
14
16
A vera ge Forw ard C urrent - I
F (AV )
(A )
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
1000
N on-Repe titive Surge C urrent - I
FSM
(A )
At An y Rated Load C ond ition
An d W ith Rated V
RRM
Ap plied
Follow in g Surg e
100
10
100
1000
10000
Sq uare W ave Pulse D uration - t p (m icrosec)
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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MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
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)
1
2
3
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
0.10 (0.004)
BASE
COMMON
CATHODE
2
ANODE COMMON ANODE
CATHODE
1
2
1 2 3
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) MAX.
5.08 (0.20) REF.
Conform to JEDEC outline TO-220AB
Dimensions in millimeters and (inches)
10.16 (0.40)
REF.
4.69 (0.18)
4.20 (0.16)
1.32 (0.05)
6.47 (0.25)
15.49 (0.61)
1.22 (0.05)
93°
6.18 (0.24)
14.73 (0.58)
2.61 (0.10)
2.32 (0.09)
8.89 (0.35)
5.28 (0.21)
4.78 (0.19)
0.55 (0.02)
0.46 (0.02)
3X
BASE
COMMON
CATHODE
2
1.40 (0.055)
REF.
0.93 (0.37)
0.69 (0.27)
1.14 (0.045)
2X
MINIMUM RECOMMENDED FOOTPRINT
11.43 (0.45)
1
1
2
3
ANODE COMMON ANODE
CATHODE
1
2
3
4.57 (0.18)
4.32 (0.17)
2
0.61 (0.02) MAX.
5.08 (0.20) REF.
8.89 (0.35)
17.78 (0.70)
3.81 (0.15)
2.08 (0.08)
2X
2.54 (0.10)
2X
Dimensions in millimeters and (inches)
Conform to JEDEC outline D
2
Pak (SMD-220)
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5
Embedded System
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