Document Number: 94083 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 15-Sep-09 1
Ultrafast Rectifier,
2 x 10 A FRED Pt®
MURB2020CTPbF, MURB2020CT-1PbF
Vishay High Power Products
FEATURES
Ultrafast recovery time
Low forward voltage drop
Low leakage current
175 °C operating junction temperature
Compliant to RoHS directive 2002/95/EC
Halogen-free according to IEC 61249-2-21
definition
AEC-Q101 qualified
DESCRIPTION/APPLICATIONS
MUR.. series are the state of the art ultrafast recovery
rectifiers specifically designed with optimized performance of
forward voltage drop and ultrafast recovery time.
The planar structure and the platinum doped life time control,
guarantee the best overall performance, ruggedness and
reliability characteristics.
These devices are intended for use in the output rectification
stage of SMPS, UPS, dc-to-dc converters as well as
freewheeling diode in low voltage inverters and chopper
motor drives.
Their extremely optimized stored charge and low recovery
current minimize the switching losses and reduce over
dissipation in the switching element and snubbers.
PRODUCT SUMMARY
trr 25 ns
IF(AV) 2 x 10 A
VR200 V
MURB2020CTPbF
Anode
Base
common
cathode
2
D2PAK
MURB2020CT-1PbF
TO-262
Anode
13
2
Common
cathode
Anode
Base
common
cathode
2Anode
13
2
Common
cathode
122
1
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL TEST CONDITIONS MAX. UNITS
Peak repetitive reverse voltage VRRM 200 V
Average rectified forward current per leg IF(AV)
10
A
total device Rated VR, TC = 145 °C 20
Non-repetitive peak surge current per leg IFSM 100
Peak repetitive forward current per leg IFM Rated VR, square wave, 20 kHz, TC = 145 °C 20
Operating junction and storage temperatures TJ, TStg - 65 to 175 °C
ELECTRICAL SPECIFICATIONS (TJ = 25 °C unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS
Breakdown voltage,
blocking voltage
VBR,
VR
IR = 100 µA 200 - -
V
Forward voltage VF
IF = 8 A, TJ = 125 °C - - 0.85
IF = 16 A - - 1.15
IF = 16 A, TJ = 125 °C - - 1.05
Reverse leakage current IR
VR = VR rated - - 15 µA
TJ = 150 °C, VR = VR rated - - 250
Junction capacitance CTVR = 200 V - 55 - pF
Series inductance LSMeasured lead to lead 5 mm from package body - 8.0 - nH
* Pb containing terminations are not RoHS compliant, exemptions may apply
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94083
2Revision: 15-Sep-09
MURB2020CTPbF, MURB2020CT-1PbF
Vishay High Power Products Ultrafast Rectifier,
2 x 10 A FRED Pt®
DYNAMIC RECOVERY CHARACTERISTICS (TJ = 25 °C unless otherwise specified)
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS
Reverse recovery time trr
IF = 1.0 A, dIF/dt = 50 A/µs, VR = 30 V - - 35
ns
IF = 0.5 A, IR = 1.0 A, IREC = 0.25 A - - 25
TJ = 25 °C
IF = 10 A
dIF/dt = 200 A/µs
VR = 160 V
-21-
TJ = 125 °C - 35 -
Peak recovery current IRRM
TJ = 25 °C - 1.9 - A
TJ = 125 °C - 4.8 -
Reverse recovery charge Qrr
TJ = 25 °C - 25 - nC
TJ = 125 °C - 78 -
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER SYMBOL TEST CONDITIONS MIN. TYP. MAX. UNITS
Maximum junction and
storage temperature range TJ, TStg - 65 - 175 °C
Thermal resistance,
junction to case per leg RthJC --2.5
°C/W
Thermal resistance,
junction to ambient per leg RthJA --50
Thermal resistance,
case to heatsink RthCS
Mounting surface, flat, smooth and
greased -0.5-
Weight -2.0- g
-0.07- oz.
Mounting torque 6.0
(5.0) -12
(10)
kgf · cm
(lbf · in)
Marking device Case style D2PAK MURB2020CT
Case style TO-262 MURB2020CT-1
Document Number: 94083 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 15-Sep-09 3
MURB2020CTPbF, MURB2020CT-1PbF
Ultrafast Rectifier,
2 x 10 A FRED Pt®Vishay High Power Products
Fig. 1 - Typical Forward Voltage Drop Characteristics Fig. 2 - Typical Values of Reverse Current vs.
Reverse Voltage
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
1
10
02.00.4 1.2
VF - Forward Voltage Drop (V)
IF - Instantaneous Forward Current (A)
100
1.6
0.1
0.8
TJ = 175 °C
TJ = 125 °C
TJ = 25 °C
0.01
0.1
1
10
100
0 100 150
VR - Reverse Voltage (V)
IR - Reverse Current (µA)
TJ = 175 °C
TJ = 150 °C
TJ = 125 °C
TJ = 100 °C
TJ = 25 °C
200 25050
0.001
100
1000
1 10 100 1000
10
V
R
- Reverse Voltage (V)
C
T
- Junction Capacitance (pF)
TJ = 25 °C
0.01
0.1
10
0.00001 0.0001 0.001 0.01 0.1 1
t1 - Rectangular Pulse Duration (s)
ZthJC - Thermal Impedance (°C/W)
.
.
PDM
t1
t2
Notes:
1. Duty factor D = t1/t2
2. Peak TJ = PDM x ZthJC + TC
1
Single pulse
(thermal resistance)
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94083
4Revision: 15-Sep-09
MURB2020CTPbF, MURB2020CT-1PbF
Vishay High Power Products Ultrafast Rectifier,
2 x 10 A FRED Pt®
Fig. 5 - Maximum Allowable Case Temperature vs.
Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Typical Reverse Recovery Time vs. dIF/dt
Fig. 8 - Typical Stored Charge vs. dIF/dt
Note
(1) Formula used: TC = TJ - (Pd + PdREV) x RthJC;
Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6);
PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = Rated VR
03
Allowable Case Temperature (°C)
IF(AV) - Average Forward Current (A)
160
170
180
See note (1)
150
DC
140
130
69
Square wave (D = 0.50)
Rated VR applied
12 15
06
Average Power Loss (W)
IF(AV) - Average Forward Current (A)
0
D = 0.01
D = 0.02
D = 0.05
D = 0.10
D = 0.20
D = 0.50
DC
39
3
6
15
9
12
RMS limit
12 15
100 1000
t
rr
(ns)
dI
F
/dt (A/µs)
20
40
VR = 160 V
TJ = 125 °C
TJ = 25 °C
30
50
10 IF = 20 A
IF = 10 A
IF = 5 A
0
100 1000
Q
rr
(nC)
dI
F
/dt (A/µs)
50
IF = 20 A
IF = 10 A
IF = 5 A
250
150
VR = 160 V
TJ = 125 °C
TJ = 25 °C
100
200
0
Document Number: 94083 For technical questions, contact: diodestech@vishay.com www.vishay.com
Revision: 15-Sep-09 5
MURB2020CTPbF, MURB2020CT-1PbF
Ultrafast Rectifier,
2 x 10 A FRED Pt®Vishay High Power Products
Fig. 9 - Reverse Recovery Parameter Test Circuit
Fig. 10 - Reverse Recovery Waveform and Definitions
IRFP250
D.U.T.
L = 70 µH
V
R
= 200 V
0.01 Ω
G
D
S
dI
F
/dt
adjust
Q
rr
0.5 I
RRM
dI
(rec)M
/dt
0.75 I
RRM
I
RRM
t
rr
t
b
t
a
I
F
dI
F
/dt
0
(1)
(2)
(3)
(4)
(5)
(1) dIF/dt - rate of change of current
through zero crossing
(2) IRRM - peak reverse recovery current
(3) trr - reverse recovery time measured
from zero crossing point of negative
going IF to point where a line passing
through 0.75 IRRM and 0.50 IRRM
extrapolated to zero current.
(4) Qrr - area under curve defined by trr
and IRRM
trr x IRRM
2
Qrr =
(5) dI(rec)M/dt - peak rate of change of
current during tb portion of trr
www.vishay.com For technical questions, contact: diodestech@vishay.com Document Number: 94083
6Revision: 15-Sep-09
MURB2020CTPbF, MURB2020CT-1PbF
Vishay High Power Products Ultrafast Rectifier,
2 x 10 A FRED Pt®
ORDERING INFORMATION TABLE
1- Ultrafast MUR series
2- B = D2PAK/TO-262
3- Current rating (20 = 20 A)
4- Voltage rating (20 = 200 V)
5- CT = Center tap (dual) TO-220/D2PAK/ TO-262
6- -1 = TO-262
7- None = Tube (50 pieces)
TRL = Tape and reel (left oriented, for D2PAK package only)
TRR = Tape and reel (right oriented, for D2PAK package only)
8- None = Standard production
PbF = Lead (Pb)-free
None = D2PAK
Device code
51324678
MUR B 20 20 CT -1 TRL PbF
LINKS TO RELATED DOCUMENTS
Dimensions www.vishay.com/doc?95014
Part marking information www.vishay.com/doc?95008
Packaging information www.vishay.com/doc?95032
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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Vishay
All product specifications and data are subject to change without notice.
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(collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein
or in any other disclosure relating to any product.
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therein, which apply to these products.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this
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