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SCHOTTKY RECTIFIER
PD-20543 rev. B 11/99
42CTQ030
42CTQ030S
42CTQ030-1
40 Amp
Major Ratings and Characteristics
Characteristics
Values Units
IF(AV) Rectangular
waveform
VRRM
40
30
IFSM @ tp = 5 µs sine
1100
VF @20 Apk, TJ= 125°C
(per leg)
0.38
TJ range
- 55 to 150
A
V
A
V
°C
Description/Features
This center tap Schottky rectifier 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 TJ 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
42CTQ030
Case Styles
42CTQ030S
42CTQ030-1
TO-220
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D2PAK
TO-262
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42CTQ030, 42CTQ030S, 42CTQ030-1
PD-20543 rev. B 11/99
Voltage Ratings
Parameters
VR Max. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Absolute Maximum Ratings
42CTQ030
42CTQ030S
42CTQ030-1
30
Parameters
IF(AV) Max.AverageForward (Per Leg)
Current * See Fig. 5 (Per Device)
IFSM Max.PeakOneCycleNon-Repetitive
Surge Current (Per Leg) * See Fig. 7
EAS Non-RepetitiveAvalancheEnergy
(Per Leg)
IAR RepetitiveAvalancheCurrent
(Per Leg)
Electrical Specifications
Values
20
40
1100
360
13
3
Units
Conditions
A 50% duty cycle @ TC = 121°C, rectangular wave form
5µs Sine or 3µs Rect. pulse Following any rated
A load condition and with
10ms Sine or 6ms Rect. pulse rated VRRM applied
mJ TJ = 25 °C, IAS = 3 Amps, L = 2.90 mH
A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters
Values Units
Conditions
VFM Max. Forward Voltage Drop
(Per Leg) * See Fig. 1
(1)
IRM Max. Reverse Leakage Current
(Per Leg) * See Fig. 2 (1)
VF(TO) Threshold Voltage
rt Forward Slope Resistance
CT Max. Junction Capacitance (Per Leg)
LS Typical Series Inductance (Per Leg)
dv/dt Max. Voltage Rate of Change
(Rated VR)
0.48
0.57
0.38
0.51
3
183
0.22
6.76
2840
8.0
10,000
Thermal-Mechanical Specifications
V @ 20A
V @ 40A
V @ 20A
V @ 40A
TJ = 25 °C
TJ = 125 °C
mA TJ = 25 °C
mA TJ = 125 °C
V TJ = TJ max.
m
VR = rated VR
pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25°C
nH Measured lead to lead 5mm from package body
V/ µs
(1) Pulse Width < 300µs, Duty Cycle <2%
Parameters
TJ Max.JunctionTemperatureRange
Tstg Max.StorageTemperatureRange
RthJC Max.ThermalResistanceJunction
to Case (Per Leg)
RthJC Max.ThermalResistanceJunction
to Case (Per Package)
RthCS TypicalThermalResistance,Case
to Heatsink
wt ApproximateWeight
T MountingTorque
Min.
Max.
Values Units
Conditions
-55to150 °C
-55to150 °C
2.0 °C/W DC operation
1.0 °C/W DC operation
0.50
2(0.07)
6(5)
12(10)
°C/W Mounting surface , smooth and greased
(only for TO-220)
g(oz.)
Kg-cm
(Ibf-in)
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42CTQ030, 42CTQ030S, 42CTQ030-1
PD-20543 rev. B 11/99
10 0 0
10 0 0
T J = 15 0°C
1 00
1 25°C
10 1 00°C
75°C
1
50°C
0.1 25°C
1 00
T J= 150 °C
10
T J= 125 °C
T J= 25 °C
0 .0 1
0
5 10 15 20 25
R e v e r se V o lt a g e - V R (V )
30
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage (PerLeg)
1 0 0 00
1 0 00
T J= 25° C
1
0 0 .2 0 .4 0.6 0 .8 1 1.2 1.4 1.6 1.8
Fo rw a rd Vo lta g e D rop - VF M (V)
Fig.1-Max. Forward Voltage Drop Characteristics
(PerLeg)
10
10 0
0
5 10 15 20 25 30 35
R e v e rse V o lt a g e - V R (V )
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage (Per Leg)
D = 0.75
1 D = 0.50
D = 0.33
D = 0.25
D = 0.20
PD M
0 .1
0 .01
0.0 00 0 1
Sing le Pulse
(Therm a l Resis ta nce)
N otes:
t1
t2
1. D u ty fa ctor D = t 1/ t 2
2 . P e a k TJ = PD M x Z th JC+ T C
0 .00 01
0 .00 1
0 .01
0 .1
1
10
t 1 , R ectan gula r Pulse Duration (Secon ds)
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
1 00
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42CTQ030, 42CTQ030S, 42CTQ030-1
PD-20543 rev. B 11/99
15 0
14 0
DC
13 0
12 0 Square w av e (D = 0.50)
8 0 % R a t e d V R a p p lie d
11 0
se e no te (2)
10 0
0 5 10 15 20 25 30
A vera g e Fo rw a rd C u rre n t - I F(A V) (A )
Fig.5-Max. Allowable CaseTemperature
Vs. Average Forward Current (PerLeg)
1 00 0
16
D = 0.20
D = 0.25
D = 0.33
12 D = 0.50
D = 0.75
8 R M S Lim it
DC
4
0
0 5 10 15 20 25 30
A ve ra g e Fo rw a rd C u rren t - I F(AV ) (A )
Fig.6-Forward Power Loss Characteristics
(PerLeg)
D UT
C URRENT
M O N ITO R
A t A n y R a t e d Lo a d C o n d it io n
A n d W ith R a t e d V RR M A pp lie d
Fo llo w in g Su rg e
10 0
10
100
1 0 00
1 00 00
Sq u a re W a v e P u lse D ura t io n - t p (m ic ro se c )
Fig.7-Max. Non-Repetitive Surge Current (PerLeg)
L
IRFP4 60
Rg = 25 ohm
H IG H -SP E ED
SW ITC H
FR EE-W HEEL
D IO D E
40 HFL4 0 S02
+ V d = 2 5 V olt
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
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42CTQ030, 42CTQ030S, 42CTQ030-1
PD-20543 rev. B 11/99
Ordering Information Table
Device Code
42 C T Q 030 -1
12 34
56
1 - Essential Part Number
2 - C = Common Cathode
3 - T = TO-220
4 - Q = Schottky Q Series
5 - Voltage Rating 030 = 30V
6 - 1 = TO-262
S = D2Pak
Outline Table
10.54 (0.41)
MAX.
3.78 (0.15)
DIA.
3.54 (0.14)
15.24 (0.60)
14.84 (0.58)
12 3
2.92 (0.11)
2.54 (0.10)
TERM 2
6.48 (0.25)
6.23 (0.24)
1.32 (0.05)
1.22 (0.05)
14.09 (0.55)
13.47 (0.53)
1.40 (0.05)
1.15 (0.04)
3.96 (0.16)
3.55 (0.14)
2.04 (0.080) MAX.
0.94 (0.04)
0.69 (0.03)
0.10 (0.004)
2.89 (0.11)
2.64 (0.10)
BASE
COMMON
CA THODE
2
4.57 (0.18)
4.32 (0.17)
12 3
0.61 (0.02) MAX.
12 3
ANODE COMMON ANODE
1 CATHODE 2
5.08 (0.20) REF.
Conform to JEDEC outline TO-220AB
Dimensions in millimeters and (inches)
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