SCHOTTKY RECTIFIER 20 Amp
MBR20...CT
MBRB20...CT
MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
1
Major Ratings and Characteristics
IF(AV) Rectangular waveform 20 A
(Per Device)
IFRM @
T C
= 133°C 20 A
(Per Leg)
VRRM 80/90/100 V
IFSM @ tp = 5 µs sine 850 A
VF@
10 Apk, TJ
= 125°C 0.70 V
TJrange - 65 to 150 °C
Characteristics Values Units
Description/ Features
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 TJ operation
Center tap TO-220, D2Pak 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
Case Styles
MBR20...CT MBRB20...CT MBR20...CT-1
TO-220 D2PAK TO-262
www.irf.com
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
2www.irf.com
TJMax. Junction Temperature Range -65 to 150 °C
Tstg Max. Storage Temperature Range -65 to 175 °C
RthJC Max. Thermal Resistance 2.0 °C/W DC operation
Junction to Case (Per Leg)
RthCS Typical Thermal Resistance 0.50 °C/W Mounting surface, smooth and greased
Case to Heatsink Only for TO-220
RthJA Max. Thermal Resistance 50 °C/W DC operation
Junction to Ambient For D2Pak and TO-262
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5) Non-lubricated threads
Max. 12 (10)
Thermal-Mechanical Specifications
Parameters Values Units Conditions
Kg-cm
(Ibf-in)
VFM Max. Forward Voltage Drop 0.80 V @ 10A
(1) 0.95 V @ 20A
0.70 V @ 10A
0.85 V @ 20A
IRM Max. Instantaneus Reverse Current 0.10 mA TJ = 25 °C
(1) 6 mA TJ = 125 °C
VF(TO) Threshold Voltage 0.433 V TJ = TJ max.
rtForward Slope Resistance 15.8 mΩ
CTMax. Junction Capacitance 400 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
LSTypical Series Inductance 8.0 nH Measured from top of terminal to mounting plane
dv/dt Max. Voltage Rate of Change 10,000 V/ µs
(Rated VR)
Electrical Specifications
Parameters Values Units Conditions
Rated DC voltage
TJ = 25 °C
TJ = 125 °C
(1) Pulse Width < 300µs, Duty Cycle <2%
IF(AV) Max. Average Forward (Per Leg) 10 A @ TC = 133° C, (Rated VR)
Current (Per Device) 20
IFRM Peak Repetitive Forward 20 A Rated VR, square wave, 20kHz
Current (Per Leg) TC = 133° C
IFSM Non Repetitive Peak 5µs Sine or 3µs
Surge Current Rect. pulse
Surge applied at rated load conditions halfwave,
single phase, 60Hz
IRRM Peak Repetitive Reverse 0.5 A 2.0 µsec 1.0 KHz
Surge Current
EAS Non-Repetitive Avalanche Energy 24 mJ TJ = 25 °C, IAS
= 2 Amps, L = 12 mH
(Per Leg)
Absolute Maximum Ratings
Following any rated load condition
and with rated VRRM applied
A
150
80 90 100
Voltage Ratings
Parameters
Parameters Values Units Conditions
MBR2080CT MBR2090CT MBR20100CT
MBRB2080CT MBRB2090CT MBRB20100CT
MBR2080CT-1 MBR2090CT-1 MBR20100CT-1
850
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
3
www.irf.com
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
0.0001
0.001
0.01
0.1
1
10
100
020406080100
R
R
125 C
100 C
75 C
50 C
25 C
Reverse Current - I (mA)
Reverse Voltage - V (V)
T = 150 C
J
10
100
1000
020406080100
R
T
Junction Capacitance - C (pF)
Reverse Voltage - V (V)
T = 25 C
J
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1 10
thJC
t , Rectangular Pulse Duration (Seconds)
Single Pulse
(Therm al Resistance)
1
Th ermal Impedance Z ( C/W )
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
12
JthJC C
DM
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
2
t
1
t
P
DM
1
10
100
0.20.40.60.8 1 1.21.41.61.8
F
FM
T = 150 C
T = 125 C
T = 25 C
J
J
J
Forward Voltage Drop - V (V)
Instantaneous Forward Current - I (A)
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
4www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
(2) Formula used: TC = TJ - (Pd + PdREV) x RthJC
;
Pd = Forward Power Loss = IF(AV) x VFM @ (IF(AV) / D) (see Fig. 6);
PdREV = Inverse Power Loss = VR1 x IR (1 - D); IR @ VR1
= rated VR
100
1000
10 100 1000 10000
FSM
Non-Repetitive Surge Current - I (A)
p
At Any Rated Load Condition
And W ith Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
0
2
4
6
8
10
0 2 4 6 8 10121416
DC
Average Power Loss - (Watts)
F(AV)
RMS Limit
Average Forward Current - I (A)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
100
110
120
130
140
150
0 2 4 6 8 10121416
DC
Allowable Case Temperature - ( C)
F(AV)
see note (2)
Average Forward Current - I (A)
Square wave (D = 0.50)
Rated V applied
R
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
5
www.irf.com
3.78 (0.15)
3.54 (0.14)
10.54 (0.41)
MAX.
DIA.
15.24 (0.60)
14.84 (0.58)
2.92 (0.11)
2.54 (0.10)
1
TERM 2
14.09 (0.55)
13.47 (0.53)
3.96 (0.16)
3.55 (0.14)
0.94 (0.04)
0.69 (0.03)
4.57 (0.18)
4.32 (0.17)
30.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
6.48 (0.25)
6.23 (0.24)
2°
0.10 (0.004)
1.40 (0.05)
1.15 (0.04)
2.89 (0.11)
2.64 (0.10)
1
3
2.04 (0.080) MAX.
2
2
Conform to JEDEC outline TO-220AB
Dimensions in millimeters and (inches)
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
Outline Table
10.16 (0.40)
REF.
8.89 (0.35)
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
13
6.47 (0.25)
6.18 (0.24)
93°
REF.
2.61 (0.10)
2.32 (0.09)
5.28 (0.21)
4.78 (0.19)
4.69 (0.18)
4.20 (0.16)
0.55 (0.02)
0.46 (0.02)
14.73 (0.58)
15.49 (0.61)
1.40 (0.055)
1.14 (0.045)
3X
0.93 (0.37)
0.69 (0.27)
2X
11.43 (0.45)
17.78 (0.70)
8.89 (0.35)
3.81 (0.15)
2.08 (0.08)
2X
2.54 (0.10)
2X
MINIMUM RECOMMENDED FOOTPRINT
2
Dimensions in millimeters and (inches)
Conform to JEDEC outline D2Pak (SMD-220)
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
6www.irf.com
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
2
BASE
COMMON
CATHODE
123
ANODE
COMMON
CATHODE
A
NODE
12
TRR
FEED DIRECTION
TRL
FEED DIRECTION
10 .90 (0.429)
10 .70 (0.421) 16.10 (0.634)
15.90 (0.626)
1.75 (0.069)
1.25 (0.049)
1.85 (0 .073)
1.65 (0 .065)
4.10 (0.161)
3.90 (0.153)
1.60 (0.063)
1.50 (0.059)
DIA.
1.60 (0.063)
1.50 (0.059)
DIA.
11.60 (0.457)
11.40 (0.449)
15.42 (0.609)
15.22 (0.601)
4.72 (0.186)
4.52 (0.178)
24.30 (0.957)
23.90 (0.941)
0.368 (0.0145)
0.342 (0.0135)
360 (14.173)
DIA. MAX.
26.40 (1.039)
24.40 (0.961)
13.50 (0.532)
12.80 (0.504) DIA.
60 (2.36 2)
DIA. MIN.
SMD-220 Tape & Reel
When ordering, indicate the part
number, part orientation, and the
quantity. Quantitie s are in mult iples
of 800 piece s per reel for bo th
TRL and TRR.
Dimensions in millimeters and (inches)
Tape & Reel Information
MBR20...CT, MBRB20...CT, MBR20...CT-1
Bulletin PD-2.321 rev. I 08/02
7
www.irf.com
Ordering Information Table
Device Code
15
24
3
1- Essential Part Number
2- B = Surface Mount
None = TO-220
3- Current Rating
4- Voltage code: Code = VRRM
5- CT = Essential Part Number
6- -1 = TO-262
None = TO-220
080 = 80V
090 = 90V
100 = 100V
MBR B 20 100 CT -1
6
Marking Information
EXAMPLE: THIS IS AN MBRB20100CT
5 8 0 7
MBRB20100CT
9712
INTERNATIONAL
RECTIFIER LOGO PART NUMBER
DATE CODE (YYWW)
YY = YEAR
WW = WEEK
ASSEMBLY
LOT CODE
2 (K)
1 (A) 3 (A)
2 (K)
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
TAC Fax: (310) 252-7309
Visit us at www.irf.com for sales contact information. 08/02
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
