1
MURS120
Bulletin PD-20753 rev. E 05/02
t
rr
= 25ns
I
F(AV)
= 1Amp
V
R
= 200V
Ultrafast Recovery Time
Low Forward Voltage Drop
Low Leakage Current
175C Operating Junction Temperature
Features
Description/ Applications
International Rectifier's MUR.. series are the state of the art Ultra fast recovery rectifiers specifically designed with
optimized performance of forward voltage drop and ultra fast 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-DC converters as well as
free-wheeling 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.
Absolute Maximum Ratings
Ultrafast Rectifier
V
RRM
Peak Repetitive Peak Reverse Voltage
200
V
I
F(AV)
Average Rectified Forward Current, T
L
= 158C
1
A
I
FSM
Non Repetitive Peak Surge Current
40
T
J
,
T
STG
Operating Junction and Storage Temperatures
- 65 to 175
C
Parameters
Max
Units
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3.80 (.150)
3.30 (.130)
4.70 (.185)
4.10 (.161)
2.15 (.085)
1.80 (.071)
2.40 (.094)
1.90 (.075)
1.30 (.051)
0.76 (.030)
0.30 (.012)
0.15 (.006)
5.60 (.220)
5.00 (.197)
4.0 (.157)
2.0 TYP.
(.079 TYP.)
2.5 TYP.
(.098 TYP.)
SOLDERING PAD
CATHODE
ANODE
1
2
1
2
POLARITY
PART NUMBER
4.2 (.165)
Outline SMB
Dimensions in millimeters and (inches)
SMB
Device Marking: IRU120
MURS120
Bulletin PD-20753 rev. E 05/02
2
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V
BR
,
V
r
Breakdown Voltage,
200
-
-
V
I
R
= 100A
Blocking Voltage
V
F
Forward Voltage
-
0.83 0.875
V
I
F
= 1A
-
0.65 0.71
V
I
F
= 1A, T
J
= 150C
I
R
Reverse Leakage Current
-
0.1
2
A
V
R
= V
R
Rated
-
11
50
A
T
J
= 150C, V
R
= V
R
Rated
C
T
Junction Capacitance
-
12
-
pF
V
R
= 200V
Electrical Characteristics @ T
J
= 25C (unless otherwise specified)
Parameters
Min Typ Max
Test Conditions
t
rr
Reverse Recovery Time
-
-
35
ns
I
F
= 1.0A, di
F
/dt = 50A/s, V
R
= 30V
-
-
25
I
F
= 0.5A, I
R
= 1.0A, I
REC
= 0.25A
Dynamic Recovery Characteristics @ T
J
= 25C (unless otherwise specified)
Parameters
Min Typ
Test Conditions
Parameters
Min
Typ
Max
Units
T
J
Max. Junction Temperature Range
-
-
175
C
T
Stg
Max. Storage Temperature Range
- 65
-
175
R
thJL
Thermal Resistance, Junction to Lead
-
-
21
C/W
Wt
Weight
-
0.1
-
g
-
0.07
-
(oz)
wt
Approximate Weight
0.10 (0.003)
g (oz.)
Case Style
SMB
Device Marking
IRU120
Thermal - Mechanical Characteristics
Units
Units
Max
Bulletin PD-20753 rev. E 05/02
3
MURS120
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Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
Fig. 1 - Typical Forward Voltage Drop Characteristics
Reverse Voltage - V
R
(V)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Forward Voltage Drop - V
FM
(V)
Instantaneous Forward Current - I
F
(A)
Reverse Current - I
R
(A)
Reverse Voltage - V
R
(V)
Junction Capacitance - C
T
(pF)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics
t
1
, Rectangular Pulse Duration (Seconds)
Thermal Impedance Z
thJL
(C/W)
0.1
1
10
0.4
0.6
0.8
1
1.2
1.4
T = 175C
T = 150C
T = 25C
J
J
J
10
100
0
40
80
120
160
200
Tj = 25C
0.1
1
10
100
0.001
0.01
0.1
1
10
Single Pulse
(Thermal Resistance)
D = 0.50
D = 0.20
D = 0.10
D = 0.05
D = 0.02
D = 0.01
2
t
1
t
P
DM
Notes:
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC+ Tc
0.001
0.01
0.1
1
10
100
0
50
100
150
200
125C
100C
75C
50C
25C
Tj = 175C
150C
MURS120
Bulletin PD-20753 rev. E 05/02
4
www.irf.com
(3) 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
Fig. 5 - Max. Allowable Lead Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Average Power Loss ( Watts )
trr ( ns )
Qrr ( nC )
Average Forward Current - I
F
(AV)
(A)
Allowable Lead Temperature (C)
Average Forward Current - I
F
(AV)
(A)
Fig. 8 - Typical Stored Charge vs. di
F
/dt
Fig. 7 - Typical Reverse Recovery vs. di
F
/dt
di
F
/dt (A/s )
di
F
/dt (A/s )
140
150
160
170
180
0
0.4
0.8
1.2
1.6
DC
Square wave (D = 0.50)
Rated Vr applied
see note (3)
0
0.2
0.4
0.6
0.8
1
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6
DC
RMS Limit
D = 0.01
D = 0.02
D = 0.05
D = 0.1
D = 0.2
D = 0.5
1
10
100
100
1000
Vr = 30V
If = 1A
Tj = 25C
1
10
100
1000
Vr = 30V
If = 1A
Tj = 25C
Bulletin PD-20753 rev. E 05/02
5
MURS120
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YYWWX
SITE ID
YEAR
WEEK
IR LOGO
IRU120
VOLTAGE
CURRENT
PROCESS TYPE
Marking & Identification
Ordering Information
MURS SERIES - TAPE AND REEL
WHEN ORDERING, INDICATE THE PART NUMBER
AND THE QUANTITY ( IN MULTIPLES OF 3000
PIECES).
EXAMPLE:
MURS120TR - 6000 PIECES
MURS.. SERIES - BULK QUANTITIES
WHEN ORDERING, INDICATE THE PART NUMBER
AND THE QUANTITY ( IN MULTIPLES OF 1000
PIECES).
EXAMPLE:
MURS120 - 2000 PIECES
Tape & Reel Information
Dimensions in millimeters and (inches)
Each device has 2 rows for identification. The first row
designates the device as manufactured by International
Rectifier as indicated by the letters "IR", the process and
the Part Number ( indicates the current rating and
voltage/process). The second row indicates the year and
the week of manufacturing and the Site ID.
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