I
F(AV)
Rectangular
150
A
waveform
V
RRM
range
35 to 50
V
I
FSM
@ tp = 5 s sine
9200
A
V
F
@
75Apk, T
J
= 125C
0.65
V
(per leg)
T
J
range
- 55 to 175
C
Characteristics
151CMQ... Units
Major Ratings and Characteristics
The 151CMQ isolated center tap Schottky rectifier module
series has been optimized for low reverse leakage at high
temperature. The proprietary barrier technology allows for
reliable operation up to 175 C junction temperature. Typical
applications are in switching power supplies, converters, free-
wheeling diodes, and reverse battery protection.
175 C T
J
operation
Isolated heatsink
Center tap module
Multiple leads per terminal for high frequency, high current
PC board mounting
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
Low profile, high current package
Description/ Features
SCHOTTKY RECTIFIER
150 Amp
151CMQ... SERIES
www.irf.com
1
Bulletin PD-2.252 rev. B 05/02
D-60
Outline D-60 (Modified JEDEC TO-249AA)
Dimensions in millimeters and (inches)
151CMQ050
Anode
(Isolated Base)
Anode
Common
Cathode
(1-3)
(4-6)
(7-9)
151CMQ... Series
2
Bulletin PD-2.252 rev. B 05/02
www.irf.com
Part number
151CMQ035 151CMQ040 151CMQ045 151CMQ050
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
I
F(AV)
Max. Average Forward Current
150
A
50% duty cycle @ T
C
= 104 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
9200
5s Sine or 3s Rect. pulse
Surge Current (Per Leg) * See Fig. 7
1200
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
101
mJ
T
J
= 25 C, I
AS
= 15 Amps, L = 0.9 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
15
A
Current decaying linearly to zero in 1 sec
(Per Leg)
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
T
J
Max. Junction Temperature Range
-55 to 175
C
T
stg
Max. Storage Temperature Range
-55 to 175
C
R
thJC
Max. Thermal Resistance Junction
1.0
C/W DC operation
* See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
0.50
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.10
C/W Mounting surface , smooth and greased
to Heatsink
wt
Approximate Weight
56 (2.0)
g (oz.)
T
Mounting Torque
Min.
40 (35)
Max.
58 (50)
Case Style
D-60 (TO-249AA) Modified JEDEC
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
V
FM
Max. Forward Voltage Drop
0.71
V
@ 75A
(Per Leg) * See Fig. 1
(1)
0.92
V
@ 150A
0.65
V
@ 75A
0.82
V
@ 150A
I
RM
Max. Reverse Leakage Current
5
mA
T
J
= 25 C
(Per Leg) * See Fig. 2
(1)
45
mA
T
J
= 125 C
C
T
Max. Junction Capacitance (Per Leg)
2600
pF
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
9.2
nH
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
10000
V/ s
(Rated V
R
)
T
J
= 25 C
T
J
= 125 C
Electrical Specifications
(1) Pulse Width < 300s, Duty Cycle <2%
V
R
= rated V
R
Absolute Maximum Ratings
Following any rated
load condition and with
rated V
RRM
applied
Parameters
151CMQ Units
Conditions
A
Voltage Ratings
35
40
45
50
Parameters
151CMQ Units
Conditions
Parameters
151CMQ Units
Conditions
151CMQ... Series
3
Bulletin PD-2.251 rev. B 05/02
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 Z
thJC
Characteristics (Per Leg)
.001
.01
.1
1
10
100
1000
0
5
10 15 20 25 30 35 40 45
R
R
T = 175C
150C
125C
100C
75C
50C
25C
J
Reverse Voltage - V (V)
Re
v
e
r
s
e
C
u
r
r
e
n
t
-
I
(
m
A)
100
1000
10000
0
10
20
30
40
50
T = 25C
J
Reverse Voltage - V (V)
R
T
J
u
nc
t
i
on
C
apa
c
i
t
anc
e -
C
(
p
F
)
.001
.01
.1
1
10
.00001
.0001
.001
.01
.1
1
10
100
D = 0.33
D = 0.50
D = 0.25
D = 0.17
D = 0.08
1
th
J
C
t , Rectangular Pulse Duration (Seconds)
Th
e
r
m
a
l
Im
p
e
d
a
n
c
e
-
Z
(
C
/W
)
Single Pulse
(Thermal Resistance)
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
1
J
DM thJC C
2
1
10
100
1000
0
.2
.4
.6
.8
1
1.2
1.4
1.6
FM
F
I
n
s
t
a
n
ta
n
e
o
u
s
F
o
r
w
a
r
d
C
u
r
r
e
n
t -
I
(
A
)
T = 175C
T = 125C
T = 25C
Forward Voltage Drop - V (V)
J
J
J
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
151CMQ... Series
4
Bulletin PD-2.252 rev. B 05/02
www.irf.com
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Fig. 8 - Unclamped Inductive Test Circuit
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
0
10
20
30
40
50
60
70
80
0 10 20 30 40 50 60 70 80 90 100110
DC
A
v
er
ag
e
P
o
w
e
r
L
o
s
s
- (W
a
tts
)
F(AV)
D = 0.08
D = 0.17
D = 0.25
D = 0.33
D = 0.50
RMS Limit
Average Forward Current - I (A)
80
100
120
140
160
180
0
20
40
60
80
100
120
DC
A
l
l
o
wa
b
l
e
Ca
s
e
T
e
m
p
e
ra
t
u
re
- (
C
)
Average Forward Current - I (A)
F(AV)
151CMQ
R (DC) = 1.0C/W
thJC
1000
10000
10
100
1000
10000
FS
M
p
Non-Repetitive Surge Current -
I (A)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
Square Wave Pulse Duration - t (microsec)
FRE E-W H EEL
D IO D E
40H FL40 S02
C UR RE N T
M O N ITO R
H IG H-SPE ED
SW ITC H
IRFP460
L
D UT
R g = 25 oh m
V d = 25 V olt
+
151CMQ... Series
5
Bulletin PD-2.251 rev. B 05/02
www.irf.com
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. 05/02
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.
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