Document
Bulletin PD-20648 rev. C 09/04
20CTQ150 20CTQ150S 20CTQ150-1
SCHOTTKY RECTIFIER 20 Amp
Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM IFSM @ tp = 5 µs sine VF TJ @ 10 Apk, TJ = 125°C (per leg) range
Description/ Features Units
A V A V This center tap Schottky ectifier has been optimized for low reverse leakage at high temperature. 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 configuration 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
Values
20 150 1030 0.66
- 55 to 175
°C
Case Styles
20CTQ150
20CTQ150S
20CTQ150-1
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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20CTQ150, 20CTQ150S, 20CTQ150-1
Bulletin PD-20648 rev. C 09/04
Voltage Ratings
Parameters
VR Max. DC Reverse Voltage (V) VRWM Max. Working Peak Reverse Voltage (V) 20CTQ150 20CTQ150S 20CTQ150-1 150
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current IFSM EAS IAR * See Fig. 5 (Per Leg) (Per Device)
Values
10 20 1030 180 2.45 0.7
Units
A
Conditions
50% duty cycle @ TC = 154°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 TJ = 25 °C, IAS = 0.7 Amps, L = 10 mH Current decaying linearly to zero in 1 µsec Frequency limited by TJ max. VA = 1.5 x VR typical
Max. Peak One Cycle Non-Repetitive Surge Current (Per Leg) * See Fig. 7 Non-Repetitive Avalanche Energy (Per Leg) Repetitive Avalanche Current (Per Leg)
A mJ A
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop (Per Leg) * See Fig. 1 (1)
Typ.
0.80 0.90 0.63 0.73
Max. Units
0.88 1.0 0.66 0.77 25 5.0 280 8.0 10000 V V V V µA mA pF nH V/ µs
Conditions
@ 10A @ 20A @ 10A @ 20A TJ = 25 °C TJ = 125 °C @ 25°C TJ = 25 °C TJ = 125 °C VR = rated VR
IRM CT LS
Max. Reverse Leakage Current (Per Leg) * See Fig. 2 Typical Junction Capacitance (Per Leg) Typical Series Inductance (Per Leg)
3.0 2.7 -
VR = 5VDC (test signal range 100kHz to 1Mhz) Measured lead to lead 5mm from package body (Rated VR)
(1) Pulse Width < 300µs, Duty Cycle < 2%
dv/dt Max. Voltage Rate of Change
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range
Values
-55 to 175 -55 to 175 2.0 1.0 0.50 2 (0.07) Min. Max. 6 (5) 12 (10)
Units
°C °C
Conditions
RthJC Max. Thermal Resistance Junction to Case (Per Leg) RthJC Max. Thermal Resistance Junction to Case (Per Package) RthCS 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 (only for TO-220) g (oz.) Kg-cm (Ibf-in) Case style TO-220 Case style D2-Pak Case style TO-262
20CTQ150 20CTQ150S 20CTQ150-1
2
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20CTQ150, 20CTQ150S, 20CTQ150-1
Bulletin PD-20648 rev. C 09/04
100
Reverse Current - I R (mA)
100 10 1 0.1 0.01
Tj = 175˚C 150˚C 125˚C 100˚C 75˚C 50˚C 25˚C
Instantaneous Forward Current - I F (A)
0.001 0.0001 0 20 40 60 80 100 120 140 160
Reverse Voltage - VR (V) Fig. 2 - Typical Values Of Reverse Current Vs. Reverse Voltage (Per Leg)
10
1000
T J = 175˚C T J = 125˚C T J = 25˚C
Junction Capacitance - C T (p F)
Tj = 25˚C
100
1 0.2 0.4 0.6 0.8
10
1 1.2 1.4 1.6 1.8 2
0
40
80
120
160
Forward Voltage Drop - V FM (V) Fig. 1 - Max. Forward Voltage Drop Characteristics (Per Leg)
Reverse Voltage - VR (V) Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage (Per Leg)
10
(°C/W)
1
Thermal Impedance Z
D = 0.75 D = 0.50 D = 0.33 D = 0.25 D = 0.20 Notes:
thJC
P
DM
t1 t2
0.1
Single Pulse (Thermal Resistance)
1. Duty factor D = t1/ t2
2. Peak Tj = Pdm x ZthJC + Tc
0.01 0.00001
0.0001 0.001 0.01 t1 , Rectangular Pulse Duration (Seconds)
0.1
1
Fig. 4 - Max. Thermal Impedance ZthJC Characteristics (Per Leg)
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20CTQ150, 20CTQ150S, 20CTQ150-1
Bulletin PD-20648 rev. C 09/04
180
Allowable Lead Temperature (°C) Allowable Power Loss (Watts)
10 9 8 7 6 5 4 3 2 1 0 0
170
DC
D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC RMS Limit
160 150 Square wave (D = 0.50)
80% Rated Vr applied
140 see note (2) 130 0 2 4 6 8 10 12 14 16
Average Forward Current - I F(AV) (A) Fig. 5 - Maximum Average Forward Current Vs. Allowable Lead Temperature
Non-Repetitive Surge Current - I FSM (A)
3
6
9
12
15
Average Forward Current - I F(AV) (A) Fig. 6 - Maximum Average Forward Dissipation Vs. Average Forward Current
1000
At Any Rated Load Condition And W.