PD-20571 11/98
30CTQ050L
30CTQ060L
SCHOTTKY RECTIFIER
30 Amp
TO-262
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
The 30CTQ...L center tap Schottky rectifier has been opti-
mized for very low forward voltage drop, with moderate
leakage. The proprietary barrier technology allows for reliable
operation up to 150° C junction temperature. Typical applica-
tions are in switching power supplies, converters, free-wheel-
ing diodes, and reverse battery protection.
150° C T
J
operation
Center tap TO-262 package
High purity, high temperature epoxy encapsulation for
enhanced mechanical strength and moisture resistance
Very low forward voltage drop
High frequency operation
Guard ring for enhanced ruggedness and long term
reliability
30CTQ...L Units
30
50/60
1000
0.56
A
V
A
V
- 55 to 150
°C
BASE
COMMON
CATHODE
2
1
2
3
ANODE COMMON ANODE
CATHODE
1
2
Modified JEDEC outline TO-262
Dimensions in millimeters and inches
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30CTQ050L, 30CTQ060L
PD-20571 11/98
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
50
60
V
RWM
Max. Working Peak Reverse Voltage (V)
30CTQ050L
30CTQ060L
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward
Current
I
FSM
E
AS
I
AR
* See Fig. 5
(PerLeg)
(Per Device)
30CTQ...L Units
15
30
1000
260
13
1.50
A
mJ
A
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) * See Fig. 7
Non-Repetitive Avalanche Energy
(Per Leg)
Repetitive Avalanche Current
(Per Leg)
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)
30CTQ...L Units
0.62
0.82
0.56
0.71
0.80
45
0.386
8.469
720
8.0
10,000
V
V
V
V
mA
mA
V
mΩ
pF
nH
V/ µs
@ 15A
@ 30A
@ 15A
@ 30A
Conditions
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)
T
J
= 25 °C
T
J
= 125 °C
T
J
= T
J
max.
V
F(TO)
Threshold Voltage
r
t
C
T
L
S
Forward Slope Resistance
Max. Junction Capacitance (Per Leg)
Typical Series Inductance (Per Leg)
V
R
= 5V
DC
, (test signal range 100Khz to 1Mhz) 25°C
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
(1) Pulse Width < 300µs, Duty Cycle <2%
30CTQ...L Units
-55 to 150
-55 to 150
3.25
1.63
0.50
2 (0.07)
Min.
Max.
6 (5)
12 (10)
°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
Case Style
°C/W DCoperation
°C/W DCoperation
* See Fig. 4
°C/W Mounting surface , smooth and greased
g (oz.)
Kg-cm
(Ibf-in)
JEDEC
TO-262
2
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30CTQ050L, 30CTQ060L
PD-20571 11/98
1000
1000
100
10
100°C
1
0.1
0.01
0.001
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
75°C
50°C
25°C
T
J
= 150°C
125°C
T
J
= 150°C
Instantaneous Forward Current - I
F
(A)
100
T
J
= 125°C
T
J
= 25°C
Reverse Current - I
R
(mA)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (Per Leg)
1000
(pF)
T
10
Junction Capacitance - C
T = 25°C
J
1
0
0.4
0.8
1.2
1.6
2
Forward Voltage Drop - V
FM
(V)
100
0
10
20
30
40
50
60
Reverse Voltage - V
R
(V)
Fig. 1 - Max. Forward Voltage Drop Characteristics
(PerLeg)
10
Thermal Impedance Z
thJC
(°C/W)
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
1
D
D
D
D
D
= 0.75
= 0.50
= 0.33
= 0.25
= 0.20
Notes:
Single Pulse
(Thermal Resistance)
0.001
0.00001
0.1
P
DM
0.01
t1
t2
1. Duty factor D = t 1/ t 2
2. Peak T
J
= P
DM
x Z
thJC
+ T
C
0.1
1
10
100
0.0001
0.001
0.01
t 1 , Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
thJC
Characteristics (Per Leg)
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3
30CTQ050L, 30CTQ060L
PD-20571 11/98
160
Allowable Case Temperature - (°C)
150
140
130
DC
120
110
100
90
80
70
60
0
5
10
15
20
25
Average Forward Current - I
F(AV)
(A)
see note (2)
Square wave (D = 0.50)
80% Rated V
R
applied
14
Average Power Loss - (Watts)
12
10
8
RMS Limit
6
4
2
0
0
5
10
15
20
25
Average Forward Current - I
F(AV)
(A)
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
DC
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (Per Leg)
(A)
1000
Fig. 6 - Forward Power Loss Characteristics
(PerLeg)
Non-Repetitive Surge Current - I
FSM
At Any Rated Load Condition
And With Rated V
Applied
RRM
Following Surge
100
10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
L
HIGH-SPEED
SWITCH
FREE-WHEEL
DIODE
40HFL40S02
Vd = 25 Volt
DUT
IRFP460
Rg = 25 ohm
+
CURRENT
MONITOR
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
= 80% rated V
R
4
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30CTQ050L, 30CTQ060L
PD-20571 11/98
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