Bulletin PD-21018 rev. A 07/06
30CTQ...SPbF
30CTQ...-1PbF
SCHOTTKY RECTIFIER
30 Amp
I
F(AV)
= 30Amp
V
R
= 50 - 60V
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
I
FSM
@ tp = 5
μs
sine
V
F
T
J
@ 15 Apk, T
J
= 125°C
(per leg)
range
Description/ Features
Units
A
V
A
V
This center tap Schottky rrectifier has been optimized for very
low forward voltage drop, with moderate leakage. The
proprietary 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
30
50 - 60
1000
0.56
- 55 to 150
°C
Case Styles
30CTQ...SPbF
30CTQ...-1PbF
Base
Common
Cathode
2
Base
Common
Cathode
2
1
Anode
2
Common
Cathode
3
Anode
1
Anode
2
Common
Cathode
3
Anode
D
2
PAK
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TO-262
1
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
Voltage Ratings
Parameters
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
30CTQ050SPbF
30CTQ050-1PbF
50
30CTQ060SPbF
30CTQ060-1PbF
60
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
15
30
1000
260
13
1.50
Units
A
Conditions
50% duty cycle @ T
C
= 105°C, rectangular wave form
5μs Sine or 3μs Rect. pulse
Following any rated
load condition and with
10ms Sine or 6ms Rect. pulse rated V
RRM
applied
Max. Peak One Cycle Non-Repetitive
Surge Current (Per Leg)
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
A
mJ
A
T
J
= 25 °C, I
AS
= 1.50 Amps, L = 11.5 mH
Current decaying linearly to zero in 1
μsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
Values
0.62
0.82
0.56
0.71
0.80
45
0.39
8.47
720
8.0
10000
Units
V
V
V
V
mA
mA
V
mΩ
Conditions
@ 15A
@ 30A
@ 15A
@ 30A
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
3.25
1.63
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
30CTQ...S
30CTQ...-1
2
www.irf.com
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
1000
1000
100
10
1
0.1
0.01
0.001
T
J
= 150°C
125°C
100°C
75°C
50°C
25°C
T = 150°C
J
Instanta neous Forward Current - I
F
(A)
100
T = 125°C
J
T = 25°C
J
Revers Current - I
R
(mA)
e
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
Junction Capacitanc e - C
T
(pF)
10
T
J
= 25°C
1
100
0
0.4
0.8
1.2
1.6
2
Forward Voltage Drop - V
FM
(V)
0
10
20
30
40
50
60
Reverse Voltag e - V
R
(V)
Fig. 1 - Max. Forward Voltage Drop
Characteristics (Per Leg)
10
T
hermal Impedance Z
thJC
(°C/ W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
1
D = 0.75
D = 0.50
D = 0.33
0.1 D = 0.25
D = 0.20
0.01
S
ingle Pulse
(T
hermal R
esistance)
0.001
0.00001
0.0001
0.001
0.01
0.1
Notes:
P
DM
t1
t2
1. Duty fac tor D = t 1/ t 2
2. Peak T = P x Z
thJC
+ T
C
J
DM
1
10
100
t 1 , Rectangular Pulse Duration (S
econds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 rev. A 07/06
160
Allowable Case T
emperature - (°C)
150
140
130
120
110
100
90
80
70
60
0
see note (2)
S
quare wave (D = 0.50)
80% Ra ted V
R
a p plied
14
Average Power Loss - (Watts)
12
10
8
6
4
2
0
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
RMS Limit
DC
DC
5
10
15
20
25
0
5
10
15
20
25
Average F
orward Current - I
F(AV)
(A)
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
1000
Fig. 6 - Forward Power Loss Characteristics
(Per Leg)
Non-R
epetitive S
urge Current - I
FSM
(A)
At Any Rated Load Condition
And With Rated V
RRM
Applied
Following S
urge
100
10
100
1000
10000
S
quare Wave Pulse Duration - t p (microsec)
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
4
www.irf.com
30CTQ...SPbF, 30CTQ...-1PbF
Bulletin PD-21018 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)
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5
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