Document
Bulletin PD-20694 rev. B 07/03
40CTQ150 40CTQ150S 40CTQ150-1
SCHOTTKY RECTIFIER 40 Amp
Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 µs sine VF TJ @ 20 Apk, TJ=125°C (per leg)
Description/ Features Units
A V A V The 40CTQ... 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 175° C junction temperature. Typical applications are in switching power supplies, converters, free-wheeling diodes, and reverse battery protection. 175° C TJ operation Center tap TO-220 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
40CTQ...
40 150 1500 0.71
- 55 to 175
°C
Case Styles
40CTQ150
40CTQ150S
40CTQ150-1
Base Common Cathode
2
Base Common Cathode
2
Base Common Cathode
2
1
Anode
2 Common Cathode
3
1
Anode
Anode
2 Common Cathode
3
1
Anode
Anode
2 Common Cathode
3
Anode
TO-220AB
D2PAK
TO-262
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1
40CTQ150, 40CTQ150S, 40CTQ150-1
Bulletin PD-20694 rev. B 07/03
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V)
Value
150
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR (Per Leg) (Per Device)
40CTQ.. Units
20 40 1500 250 1.0 1.5 A mJ A A
Conditions
50% duty cycle @ TC = 140 °C, rectangular wave form 5µs Sine or 3µs Rect. pulse 10ms Sine or 6ms Rect. pulse Following any rated load condition and with rated VRRM 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)
TJ = 25 °C, IAS = 1.5 Amps, L = 0.9 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1)
40CTQ.. Units
0.93 1.16 0.71 0.85 50 15 450 8.0 10000 V V V V µA mA pF nH V/ µs @ 20A @ 40A @ 20A @ 40A
Conditions
TJ = 25 °C TJ = 125 °C VR = rated VR
IRM CT LS
Max. Reverse Leakage Current (Per Leg) * See Fig. 2 (1) Max. Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg)
TJ = 25 °C TJ = 125 °C
VR = 5VDC (test signal range 100Khz to 1Mhz) 25°C Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change (Rated VR)
(1) Pulse Width < 300µs, Duty Cycle <2%
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range Per Leg Junction to Case RthJC Max. Thermal Resistance Per Package Junction to Case RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Min. Max. 0.75 0.5 2 (0.07) 6 (5) 12 (10) °C/W DC operation °C/W Mounting surface , smooth and greased g (oz.) Kg-cm Non-lubricated threads (Ibf-in)
40CTQ.. Units
-55 to 175 -55 to 175 1.5 °C °C
Conditions
RthJC Max. Thermal Resistance
°C/W DC operation
* See Fig. 4
2
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40CTQ150, 40CTQ150S, 40CTQ150-1
Bulletin PD-20694 rev. B 07/03
100
(mA)
1000 100 10 1 0.1 0.01 0.001
Tj = 175˚C
Tj = 175˚C 150˚C 125˚C 100˚C 75˚C 50˚C 25˚C
Instantaneous Forward Current - I
Reverse Current - I
F
(A)
R
0
20 40 60 80 100 120 140 160
Reverse Voltage - VR (V)
10
Tj = 125˚C Tj = 25˚C
Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage
1000
(pF)
T J = 25˚C
Junction Capacitance - C
T
100
1 0
Forward Voltage Drop - VFM (V)
10
0.4
0.8
1.2
1.6
0
40
80
120
160
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage
10
(°C/W)
thJC
Thermal Impedance Z
1
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20
PDM
t1
0.1
Single Pulse (Thermal Resistance)
Notes:
t2 1. Duty factor D = t1/ t 2 2. Peak Tj = Pdmx ZthJC + Tc
0.01 0.00001
0.0001
0.001
0.01
0.1
1
10
100
t1, Rectangular Pulse Duration (Seconds) Fig. 4 - Max. Thermal Impedance Z thJC Characteristics
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40CTQ150, 40CTQ150S, 40CTQ150-1
Bulletin PD-20694 rev. B 07/03
180
Allowable Case Temperature (°C) Average Power Loss ( Watts )
25 20
DC
160
DC
15
RMS Limit
140
Square wave (D = 0.50) 120 80% Vr applied see note (2)
10 5 0
DC = 0.20 DC = 0.25 DC = 0.33 DC = 0.50 DC = 0.75
100 0 5 10 15 20 25 30
Average Forward Current - IF(AV) (A) Fig. 5 - Max. Allowable Case Temperature Vs. Average Forward Current
0
5
10
15
20
25
30
Average Forward Current - IF(AV) (A) Fig. 6 - Forward Power Loss Characteristics
FSM
(A)
10000
At Any Rated Load Condition And With Rated Vrrm Applied Following Surge
Non-Repetitive Surge Current - I
1000
100 10
100
1000
10000
Square Wave Pulse Duration - t p (microsec) Fig. 7 - Max. Non-Repetitive Surge Current (Per Leg)
(2) Formula used: TC = TJ -.