Bulletin PD-21038 rev. A 07/06
47CTQ020SPbF
47CTQ020-1PbF
SCHOTTKY RECTIFIER
40 Amp
IF(AV) = 40Amp
VR = 20V
Description/ Features
Major Ratings and Characteristics
Characteristics
Values
Units
IF(AV) Rectangular
waveform
40
A
VRRM
20
V
IFSM @ tp = 5 μs sine
1000
A
VF
0.34
V
- 55 to 150
°C
@ 20 Apk, TJ= 125 °C
TJ
This center tap Schottky rectifier has been optimized for ultra
low forward voltage drop specifically for 3.3V output power
supplies. The proprietary barrier technology allows for reliable
operation up to 150 °C junction temperature. Typical applications are in parallel switching power supplies, converters,
reverse battery protection, and redundant power subsystems.
150 °C TJ operation
Center tap configuration
Optimized for 3.3V application
Ultra low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Lead-Free ("PbF" suffix)
Case Styles
47CTQ020SPbF
47CTQ020-1PbF
Base
Common
Cathode
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
2
D PAK
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2
3
Anode
1
Anode
2
Common
Cathode
3
Anode
TO-262
1
47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
Voltage Ratings
Part number
47CTQ020SPbF, 47CTQ020-1PbF
VR
Max. DC Reverse Voltage (V)
@ 125° C
20
VR
Max. DC Reverse Voltage (V)
@ 150° C
10
Absolute Maximum Ratings
Parameters
47CTQ Units
IF(AV) Max. Average Forward (Per Device)
Current
(Per Leg)
IFSM
EAS
IAR
40
20
A
Max. Peak One Cycle Non-Repetitive
1000
Surge Current (Per Leg)
250
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
18
mJ
3
A
A
Conditions
50% duty cycle @ TC = 135°C, rectangular wave form
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated Vrrm applied
TJ = 25 °C, IAS =3 Amps, L =3 mH
5μs Sine or 3μs Rect. pulse
Current decaying linearly to zero in 1 μsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
VFM
IRM
47CTQ Units
Max. Forward Voltage Drop
(Per Leg)
(1)
Max. Reverse Leakage Current
Conditions
0.45
0.51
0.34
V
V
V
@ 20A
@ 40A
@ 20A
0.44
V
@ 40A
0.31
V
@ 20A
0.42
V
@ 40A
TJ = 25 °C
TJ = 125 °C
TJ = 150 °C
3
mA
TJ = 25 °C
310
mA
TJ = 125 °C
60
mA
TJ = 125 °C
VR = 5V
45
mA
TJ = 125 °C
VR = 3.3V
306
mA
TJ = 150 °C
VR = 10V
VF(TO) Threshold Voltage
rt
Forward Slope Resistance
0.188
5.9
V
mΩ
TJ = TJ max.
CT
Max. Junction Capacitance (Per Leg)
3000
pF
VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C
LS
Typical Series Inductance (Per Leg)
5.5
nH
Measured lead to lead 5mm from package body
(Per Leg)
(1)
dv/dt Max. Voltage Rate of Change
10000
VR = rated VR
V/ μs (Rated VR)
(1) Pulse Width < 300μs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
47CTQ Units
TJ
Max. Junction Temperature Range
-55 to 150
Tstg
Max. Storage Temperature Range
-55 to 150
Conditions
°C
°C
RthJC Max. Thermal Resistance Junction
to Case (Per Leg)
1.5
°C/W DC operation
RthJC Max. Thermal Resistance Junction
to Case (Per Package)
0.75
°C/W DC operation
RthCS Typical Thermal Resistance, Case
to Heatsink
0.50
°C/W Mounting surface , smooth and greased
(only for TO-220)
wt
Approximate Weight
T
Mounting Torque
Marking Device
2
2 (0.07)
g (oz.)
Min.
6 (5)
Max.
12 (10)
Kg-cm
(Ibf-in)
47CTQ020S
Case style D2Pak
47CTQ020-1
Case style TO-262
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47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
1000
1000
Reverse Current - IR (mA)
100
125°C
100°C
10
75°C
1
50°C
25°C
0.1
0.01
0
4
8
12
16
20
Reverse Voltage - VR (V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
TJ = 150°C
TJ = 125°C
10000
TJ = 25°C
Junc tion Capa citance - C T (pF)
Instantaneous Forward Current - IF (A)
TJ = 150°C
100
10
1
TJ = 25°C
1000
0
0.2
0.4
0.6
0.8
1
1.2
1.4
0
2
4
6
8 10 12 14 16 18 20 22
Forward Voltage Drop - V FM (V)
Reverse Voltage - VR (V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Thermal Impedance Z thJC (°C/ W)
10
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
PDM
t1
0.1
Notes:
Single Pulse
(Thermal Resistance)
0.01
0.00001
0.0001
0.001
0.01
t2
1. Duty fac tor D = t 1/ t 2
2. Peak TJ = PDM x Z thJC+ TC
0.1
1
10
100
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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3
47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
12
150
Average Power Loss - (Watts)
Allowable Case Temperature - (°C)
160
DC
140
130
120
Square wave (D = 0.50)
10V applied
110
100
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
10
8
RMSLimit
6
DC
4
2
see note (2)
90
0
5
10
15
20
25
0
30
0
Average Forward Current - I F(AV) (A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Non-Repetitive Surge Current - I FSM (A)
5
10
15
20
25
30
Average Forward Current - I F(AV) (A)
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
1000
At Any Rated Load Condition
And With Rated VRRM Applied
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
IRFP460
DUT
Rg = 25 ohm
CURRENT
MONITOR
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
+
Vd = 25 Volt
40HFL40S02
Fig. 8 - Unclamped Inductive Test Circuit
(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 = 10 V
4
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47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
Outlines Table
Conform to JEDEC outline D2Pak (SMD-220)
Dimensions in millimeters and (inches)
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
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5
47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
Part Marking Information
D2PAK
THIS IS A 47CTQ020S
LOT CODE 8024
ASSEMBLED ON WW 02, 2000
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
47CTQ020S
DATE CODE
ASSEMBLY
LOT CODE
TO-262
EXAMPLE: THIS IS A 47CTQ020-1
LOT CODE 1789
ASSEMBLED ON WW 19, 2002
INTERNATIONAL
RECTIFIER
LOGO
ASSEMBLY
LOT CODE
YEAR 0 = 2000
WEEK 02
P = LEAD-FREE
PART NUMBER
DATE CODE
YEAR 2 = 2002
WEEK 19
P = LEAD-FREE
Tape & Reel Information
Dimensions in millimeters and (inches)
6
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47CTQ020SPbF, 47CTQ020-1PbF
Bulletin PD-21038 rev. A 07/06
Ordering Information Table
Device Code
47
C
T
Q
020
1
2
3
4
5
S TRL PbF
6
1
-
Current Rating (40A)
2
-
Circuit Configuration
3
-
4
-
Schottky "Q" Series
5
-
Voltage Rating (020 = 20V)
6
-
y S = D2Pak
7
-
7
8
C = Common Cathode
T = TO-220
y -1= TO-262
y none = Tube (50 pieces)
y TRL = Tape & Reel (Left Oriented - for D2Pak only)
y TRR = Tape & Reel (Right Oriented - for D2Pak only)
8
-
y none = Standard Production
y PbF = Lead-Free
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level and Lead-Free.
Qualification Standards can be found on IR's Web site.
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. 07/06
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7