Bulletin PD-21019 rev. A 07/06
42CTQ030SPbF
42CTQ030-1PbF
SCHOTTKY RECTIFIER
40 Amp
I
F(AV)
= 40Amp
V
R
= 30V
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5
μs
sine
V
F
T
J
@ 20 Apk, T
J
= 125°C
(per leg)
range
Description/ Features
Units
A
V
A
V
This center tap Schottky rectifier has been optimized for very
low forward voltage drop, with moderate leakage. The propri-
etary barrier technology allows for reliable operation up to
150° C junction temperature. Typical applications are in
switching power supplies, converters, free-wheeling diodes,
and reverse battery protection.
150° C T
J
operation
Center tap configuration
Very 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
Lead- Free ("PbF" suffix)
Values
40
30
1100
0.38
- 55 to 150
°C
Case Styles
42CTQ030SPbF
42CTQ030-1PbF
Base
Common
Cathode
2
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
1
Anode
Anode
2
Common
Cathode
3
Anode
D
2
PAK
Document Number: 94221
TO-262
www.vishay.com
1
42CTQ030SPbF, 42CTQ030-1PbF
Bulletin PD-21019 rev. A 07/06
Voltage Ratings
Parameters
V
R
Max. DC Reverse Voltage (V)
42CTQ030SPbF, 42CTQ030-1PbF
30
V
RWM
Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(Per Leg)
(Per Device)
* See Fig. 7
Values
20
40
1100
360
13
3
Units
A
Conditions
50% duty cycle @ T
C
= 121°C, rectangular wave form
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
5μs Sine or 3μs Rect. pulse
T
J
= 25 °C, I
AS
= 3 Amps, L = 2.90 mH
Current decaying linearly to zero in 1
μsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg)
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
Non-Repetitive Avalanche Energy
A
mJ
A
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
Values
0.48
0.57
0.38
0.51
3
183
0.22
6.76
2840
8.0
10000
Units
V
V
V
V
mA
mA
V
mΩ
Conditions
@ 20A
@ 40A
@ 20A
@ 40A
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
Max. Reverse Leakage Current
(Per Leg) * See Fig. 2
(1)
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
pF
nH
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25°C
Measured lead to lead 5mm from package body
(1) Pulse Width < 300μs, Duty Cycle <2%
dv/dt Max. Voltage Rate of Change
V/
μs
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
Values
-55 to 150
-55 to 150
2.0
1.0
0.50
2 (0.07)
Min.
Max.
6 (5)
12 (10)
Units
°C
°C
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case (Per Leg)
R
thJC
Max. Thermal Resistance Junction
to Case (Per Package)
R
thCS
Typical Thermal Resistance, Case
to Heatsink
wt
T
Approximate Weight
Mounting Torque
Marking Device
°C/W DC operation
°C/W DC operation
°C/W Mounting surface , smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
Case style D
2
Pak
Case style TO-262
42CTQ030S
42CTQ030-1
Document Number: 94221
www.vishay.com
2
42CTQ030SPbF, 42CTQ030-1PbF
Bulletin PD-21019 rev. A 07/06
1000
1000
T
J
= 150°C
125°C
10
100°C
75°C
1
50°C
0.1
25°C
Instantaneous Forward Current - I
F
(A)
100
R
everse Current - I
R
(mA)
100
0.01
0
5
10
15
20
25
30
R
evers Voltag e - V
R
(V)
e
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
10000
T
J
= 150°C
T
J
= 125°C
T
J
= 25°C
10
Junction Capacitance - C
T
(pF)
T
J
= 25°C
1000
1
0
0.2
0.4
0.6
0.8
1
1.2
1.4
1.6
1.8
100
0
5
10
15
20
25
30
35
Forward Voltage Drop - V
FM
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(Per Leg)
10
T
hermal Impedanc e Z
thJC
(°C/ W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
Reverse Voltage - V
R
(V)
1
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
P
DM
t
0.1
Notes:
S
ingle Pulse
(T
hermal Resistance)
0.01
0.00001
0.0001
0.001
0.01
0.1
1
t2
1. Duty fac tor D = t 1/ t 2
2. Peak T = P
DM
x Z
thJC
+ T
C
J
1
10
100
t 1 , Rectangular Pulse Duration (S onds)
ec
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
Document Number: 94221
www.vishay.com
3
42CTQ030SPbF, 42CTQ030-1PbF
Bulletin PD-21019 rev. A 07/06
150
Allowable Case T
emperature - (°C)
16
Avera ge Power Loss - (Watts)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
140
DC
12
130
S
quare wave (D = 0.50)
80% Rated V
R
ap plied
8
R Limit
MS
120
110
see note (2)
4
100
0
5
10
15
20
25
30
0
0
5
10
15
20
25
30
Average F
orward Current - I
F(AV)
(A)
Average F
orward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
Non-R
epetitive S
urge Current - I
FS
(A)
M
1000
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
At Any R
ated Load Condition
And With R
ated V
RRM
Applied
Following S
urge
100
10
100
1000
p
10000
(microsec)
S
quare Wave Pulse Duration - t
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
HIGH-S
PEED
S CH
WIT
FREE-WHEEL
DIODE
40HF
L40S
02
+
DUT
IR P460
F
R = 25 ohm
g
Vd = 25 Volt
CURRENT
MONIT
OR
Fig. 8 - Unclamped Inductive Test Circuit
(2)
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
= 10 V
Document Number: 94221
www.vishay.com
4
42CTQ030SPbF, 42CTQ030-1PbF
Bulletin PD-21019 rev. A 07/06
Outlines Table
Conform to JEDEC outline D
2
Pak (SMD-220)
Dimensions in millimeters and (inches)
Modified JEDEC outline TO-262
Dimensions in millimeters and (inches)
Document Number: 94221
www.vishay.com
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