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Электронный компонент: 20CTQ045STRR

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SCHOTTKY RECTIFIER
20 Amp
20CTQ...
20CTQ...S
20CTQ... -1
www.irf.com
1
Bulletin PD-20056 rev.
A 12/01
Major Ratings and Characteristics
I
F(AV)
Rectangular
20
A
waveform
V
RRM
range
35 to 45
V
I
FSM
@ tp = 5 s sine
1060
A
V
F
@
10 Apk, T
J
= 125C
0.57
V
(per leg)
T
J
range
- 55 to 175
C
Characteristics
20CTQ
Units
Description/Features
The 20CTQ center tap Schottky rectifier 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
Center tap TO-220 package
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
I
F(AV)
= 20Amp
V
R
= 35 to 45V
Case Styles
20CTQ...
20CTQ... S
20CTQ... -1
TO-220
D
2
PAK
Anode
1
3
2
Base
Common
Cathode
2
Anode
Common
Cathode
TO-262
Anode
1
3
2
Base
Common
Cathode
2
Anode
Common
Cathode
Anode
1
3
2
Base
Common
Cathode
2
Anode
Common
Cathode
20CTQ... Series
2
Bulletin PD-20056 rev. A 12/01
www.irf.com
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
3.25
C/W DC operation
* See Fig. 4
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
1.63
C/W DC operation
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
0.50
C/W Mounting surface , smooth and greased
to Heatsink
wt
Approximate Weight
2 (0.07)
g (oz.)
T
Mounting Torque
Min.
6 (5)
Max.
12 (10)
Thermal-Mechanical Specifications
Kg-cm
(Ibf-in)
V
FM
Max. Forward Voltage Drop
0.64
V
@ 10A
(Per Leg) * See Fig. 1
(1)
0.76
V
@ 20A
0.57
V
@ 10A
0.68
V
@ 20A
I
RM
Max. Reverse Leakage Current
2
mA
T
J
= 25 C
(Per Leg) * See Fig. 2
(1)
15
mA
T
J
= 125 C
C
T
Max. Junction Capacitance (Per Leg)
900
pF
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25C
L
S
Typical Series Inductance (Per Leg)
8.0
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
20CTQ Units
Conditions
I
F(AV)
Max. Average Forward Current
20
A
50% duty cycle @ T
C
= 145C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
1060
5s Sine or 3s Rect. pulse
Surge Current (Per Leg) * See Fig. 7
265
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
13
mJ
T
J
= 25 C, I
AS
= 2.0 Amps, L = 6.5 mH
(Per Leg)
I
AR
Repetitive Avalanche Current
2.0
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
A
Part number
20CTQ035
20CTQ040
20CTQ045
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
Voltage Ratings
35
40
45
Parameters
20CTQ Units
Conditions
Parameters
20CTQ Units
Conditions
20CTQ... Series
3
Bulletin PD-20056 rev. A 12/01
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)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
.0001
.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)
R
ev
er
s
e
C
u
r
r
e
n
t
-
I (
m
A)
100
1000
0
10
20
30
40
50
T = 25C
J
Reverse Voltage - V (V)
R
T
J
u
n
c
t
i
on C
a
p
a
c
i
t
anc
e
-
C
(
p
F
)
.1
1
10
100
1000
0
.2
.4
.6
.8
1
1.2 1.4 1.6 1.8
FM
F
I
n
s
t
a
n
t
a
ne
ou
s
F
o
r
w
ar
d
C
u
rre
n
t
- I
(A
)
T = 175C
T = 125C
T = 25C
J
J
J
Forward Voltage Drop - V (V)
.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
20CTQ... Series
4
Bulletin PD-20056 rev. A 12/01
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)
145
150
155
160
165
170
175
180
0
5
10
15
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)
20CTQ
R (DC) = 3.25C/W
thJC
0
1
2
3
4
5
6
7
8
9
0
5
10
15
DC
A
v
e
r
a
g
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)
100
1000
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
+
20CTQ... Series
5
Bulletin PD-20056 rev. A 12/01
www.irf.com
Outline Table
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)
3
0.61 (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
Dimensions in millimeters and (inches)
Conform to JEDEC outline TO-220AB
2
BASE
COMMON
CATHODE
1
2
3
ANODE
COMMON
CATHODE
ANODE
1
2
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)
1
3
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 D
2
Pak (SMD-220)
2
BASE
COMMON
CATHODE
1
2
3
ANODE
COMMON
CATHODE
ANODE
1
2