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Bulletin PD-20241 rev. C 06/06
20TQ... 20TQ...S
SCHOTTKY RECTIFIER 20 Amp
IF(AV) = 19Amp VR = 35/ 45V
Major Ratings and Characteristics Characteristics
IF(AV) Rectangular waveform VRRM range IFSM @ tp = 5 s sine VF TJ @ 20 Apk, TJ = 125C range
Description/ Features Units
A V A V C The 20TQ Schottky rectifier series 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 High purity, high temperature epoxy encapsulation for enhanced mechanical strength and moisture resistance Low forward voltage drop High frequency operation Guard ring for enhanced ruggedness and long term reliability
Values
20 35 / 45 1800 0.51 - 55 to 150
Case Styles 20TQ... 20TQ... S
Base Cathode
2
Base Cathode
2
1
3
1
3
Cathode
Anode
N/C
Anode
TO-220AC
D2PAK
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1
20TQ... Series
Bulletin PD-20241 rev. C 06/06
Voltage Ratings
Part number
VR Max. DC Reverse Voltage (V) 35 40 45 VRWM Max. Working Peak Reverse Voltage (V)
20TQ035
20TQ040
20TQ045
Absolute Maximum Ratings
Parameters
IF(AV) Max. Average Forward Current * See Fig. 5 IFSM EAS IAR Max. Peak One Cycle Non-Repetitive Surge Current * See Fig. 7 Non-Repetitive Avalanche Energy Repetitive Avalanche Current
20TQ
20 1800 400 27 4
Units
A
Conditions
50% duty cycle @ TC = 116 C, rectangular wave form 5s Sine or 3s Rect. pulse Following any rated load condition and 10ms Sine or 6ms Rect. pulse with rated VRRM applied
A mJ A
TJ = 25 C, IAS = 4 Amps, L = 3.4 mH Current decaying linearly to zero in 1 sec Frequency limited by TJ max. VA = 1.5 x VR typical
Electrical Specifications
Parameters
VFM Max. Forward Voltage Drop * See Fig. 1 (1)
20TQ
0.57 0.73 0.51 0.67
Units
V V V V mA mA pF nH V/ s @ 20A @ 40A @ 20A @ 40A TJ = 25 C TJ = 125 C
Conditions
TJ = 25 C TJ = 125 C VR = rated VR
IRM CT LS
Max. Reverse Leakage Current (1) * See Fig. 2 Max. Junction Capacitance Typical Series Inductance
2.7 105 1400 8.0 10000
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 < 300s, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
TJ Tstg Max. Junction Temperature Range Max. Storage Temperature Range
20TQ
-55 to 150 -55 to 150 1.50 0.50 2 (0.07) Min. Max. 6 (5) 12 (10)
Units
C C C/W C/W DC operation
Conditions
RthJC Max. Thermal Resistance Junction to Case RthCS Typical Thermal Resistance, Case to Heatsink wt T Approximate Weight Mounting Torque Marking Device
* See Fig. 4
Mounting surface , smooth and greased g (oz.)
Kg-cm (Ibf-in) Case Style TO-220 Case Style D2Pak
20TQ045 20TQ045S
2
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20TQ... Series
Bulletin PD-20241 rev. C 06/06
10 00
10 00 10 0 1 0 1 .1 .0 1 .0 1 0 0 T =1 0 C 5 J 1 5C 2 1 0C 0 7 5C 5 0C 2 5C
10 0
In ta ta e u F rw rdC rre t - I (A s n nos o a un ) F
R v r eC rre t - I (m ) e es u n A R
5
11223344 05050505 R v rs V lta e- V (V ee e o g R)
1 0
Fig. 2 - Typical Values of Reverse Current Vs. Reverse Voltage
T =1 0C 5 J
J n tio C p c n e- C (p ) u c n a a ita c F T 100 00
T =1 5C 2 J T= 2 5C J 1
T =2 5C J 10 00
.1 0
.2
.4
.6
.8
1
1 .2 1 .4
1 .6
1 .8
10 0 0
1 0
2 0
3 0
4 0
5 0
F rw rdV lta eD p- V (V oa o g ro ) F M
R v rs V lta e- V (V ee e o g ) R
Fig. 1 - Maximum Forward Voltage Drop Characteristics
1 0 T e a Im e a c - Zth C ( /W h rm l p d n e C) J
Fig. 3 - Typical Junction Capacitance Vs. Reverse Voltage
1
.1
D=0 0 .5 D=0 3 .3 D=0 5 .2 D=0 7 .1 D=0 8 .0
PM D
t 1 t2 N te : os 1 D tyfa to D= t1/ t2 .u cr 2 P a T =P xZ . ek +T JD M th C C J .0 1 .1 1 1 0 10 0
.0 1 S g P ls in le u e (T e a R s ta c ) h rm l e is n e .0 1 0 .0 0 1 00 .0 0 01 .0 1 0
t , R c n u r P ls D ra n(S c n s e ta g la u e u tio eod) 1
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
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20TQ... Series
Bulletin PD-20241 rev. C 06/06
15 5 A w b C s T m e tu - ( ) llo a le a e e p ra re C 2T 0Q R J (D ) =1 0 C .5 /W th C C 15 4
1 8 D=0 8 .0 1 D=0 7 6 .1 D=0 5 .2 1 4 D=0 3 .3 .5 1 D=0 0 2 1 R SL it 0 M im 8 6 4 2 D C
15 3 D C 15 2
15 1 0
A e g P w r L s - (W tts v ra e o e o s a)
5
1 0
1 5
2 0
2 5
0 3
0 0
5
1 0
1 5
2 0
2 5
3 0
A e g F rw rdC rre t - IF V (A v ra e o a un (A ) )
A e g F rw rdC rre t - I v ra e o a un (A ) FV (A )
Fig. 5 - Maximum Allowable Case Temperature Vs. Average Forward Current
10000 At Any Rated Load Condition And With Rated VRRM Applied Following Surge
FSM
Fig. 6 - Forward Power Loss Characteristics
Non-Repetitive Surge Current - I
(A) 1000 100 10
100
1000
10000
Square Wave Pulse Duration - t p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L HIGH-S PEED S CH WIT FREE-WHEEL DIODE 40HF L40S 02
+
DUT
IR P460 F R = 25 ohm g
Vd = 25 Volt
CURR ENT MONIT OR
Fig. 8 - Unclamped Inductive Test Circuit
4
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20TQ... Series
Bulletin PD-20241 rev. C 06/06
Outline Table
Conform to JEDEC outline TO-220AC Dimensions in millimeters and (inches)
Conform to JEDEC outline D2Pak (SMD-220) Dimensions in millimeters and (inches)
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20TQ... Series
Bulletin PD-20241 rev. C 06/06
Part Marking Information
TO-220AC
PART NUMBER EXAMPLE: THIS IS A 20TQ045 LOT CODE 1789 ASSEMBLED ON WW 19, 2001 IN THE ASSEMBLY LINE "C" INTERNATIONAL RECTIFIER LOGO DATE CODE ASSEMBLY LOT CODE YEAR 1 = 2001 WEEK 19 LINE C
D2Pak
THIS IS A 20TQ045S LOT CODE 8024 ASSEMBLED ON WW 02, 2000 INTERNATIONAL RECTIFIER LOGO ASSEMBLY LOT CODE PART NUMBER
20TQ045S
DATE CODE YEAR 0 = 2000 WEEK 02 LINE C
Tape & Reel Information
Dimensions in millimeters and (inches)
6
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20TQ... Series
Bulletin PD-20241 rev. C 06/06
Ordering Information Table
Device Code
20
1
T
2
Q
3
045
4
S
5
6
1 2 3 4 5 6
-
Current Rating (20 = 20A) Package T = TO-220 Schottky "Q" Series Voltage Ratings none = TO-220 S = D2Pak none = Standard Production PbF = Lead-Free Tube Standard Pack Quantity : 50 pieces 035 = 35V 040 = 40V 045 = 45V
Data and specifications subject to change without notice. This product has been designed and qualified for Industrial Level. Qualification Standards can be found on IR's Web site.
IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105 TAC Fax: (310) 252-7309 Visit us at www.irf.com for sales contact information. 06/06
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