SCHOTTKY RECTIFIER 8 Amp
8TQ...
8TQ...S
Bulletin PD-20561 rev. C 01/01
1www.irf.com
Major Ratings and Characteristics
IF(AV) Rectangular 8 A
waveform
VRRM range 80 - 100 V
IFSM @ tp = 5 µs sine 850 A
VF@
8 Apk, TJ
= 125°C 0.58 V
TJrange - 55 to 175 °C
Characteristics 8TQ Units
Description/Features
The 8TQ Schottky rectifier series 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 bat-
tery protection.
175° 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
IF(AV) = 8 Amp
VR = 80 - 100V
Case Styles
8TQ...
TO-220
8TQ... S
D2PAK
8TQ... Series
2
Bulletin PD-20561 rev. C 01/01
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VFM Max. Forward Voltage Drop (1) 0.72 V @ 8A
* See Fig. 1 0.88 V @ 16A
0.58 V @ 8A
0.69 V @ 16A
IRM Max. Reverse Leakage Current (1) 0.55 mA TJ = 25 °C
* See Fig. 2 7 mA TJ = 125 °C
CTMax. Junction Capacitance 500 pF VR = 5VDC, (test signal range 100Khz to 1Mhz) 25 °C
LSTypical Series Inductance 8 nH Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change 10,000 V/ µs
(Rated VR)
TJ = 25 °C
TJ = 125 °C
VR = rated VR
Electrical Specifications
Parameters 8TQ Units Conditions
(1) Pulse Width < 300µs, Duty Cycle < 2%
TJMax. Junction Temperature Range -55 to 175 °C
Tstg Max. Storage Temperature Range -55 to 175 °C
RthJC Max. Thermal Resistance Junction 2.0 °C/W DC operation * See Fig. 4
to Case
RthCS Typical Thermal Resistance, Case to 0.50 °C/W Mounting surface , smooth and greased
Heatsink
wt Approximate Weight 2 (0.07) g (oz.)
T Mounting Torque Min. 6 (5)
Max. 12 (10)
Kg-cm
(Ibf-in)
Thermal-Mechanical Specifications
Parameters 8TQ Units Conditions
Part number 8TQ080 8TQ100
VRMax. DC Reverse Voltage (V)
VRWM Max. Working Peak Reverse Voltage (V)
Voltage Ratings
IF(AV) Max. Average Forward Current 8 A 50% duty cycle @ TC = 157° C, rectangular wave form
* See Fig. 5
IFSM Max. Peak One Cycle Non-Repetitive 850 5µs Sine or 3µs Rect. pulse
Surge Current * See Fig. 7 230 10ms Sine or 6ms Rect. pulse
EAS Non-Repetitive Avalanche Energy 7.50 mJ TJ
= 25 °C, IAS
= 0.50 Amps, L = 60 mH
IAR Repetitive Avalanche Current 0.50 A Current decaying linearly to zero in 1 µsec
Frequency limited by TJ max. VA = 1.5 x VR typical
Parameters 8TQ Units Conditions
Absolute Maximum Ratings
A
Following any rated
load condition and
with rated VRRM applied
80 100
8TQ... Series
3
Bulletin PD-20238 rev. C 01/01
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Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics
Fig. 1 - Maximum Forward Voltage Drop Characteristics
0.1
1
10
100
1000
0 0.20.40.60.8 1 1.21.41.61.8 2 2.2
FM
F
In st anta n eou s F orward C urre nt - I (A )
T = 175 C
T = 125 C
T = 25 C
J
J
J
Forward Voltage Drop - V (V)
0.0001
0.001
0.01
0.1
1
10
100
020406080100
R
R
150 C
125 C
100 C
75 C
50 C
25 C
Reverse Current - I (mA)
Reverse Voltage - V (V)
T = 175 C
J
100
1000
0 102030405060708090100110
R
T
Junction Capacitance - C (pF)
Reverse Voltage - V (V)
T = 25 C
J
0.001
0.01
0.1
1
10
0.00001 0.0001 0.001 0.01 0.1 1 10 100
thJC
t , Rectangular Pulse Duration (Seconds)
Sin gle Pulse
(Thermal Resistance)
1
Th ermal Impedance Z ( C/W)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
J
DM
thJC C
12
2
t
1
t
P
DM
Notes:
1. Duty factor D = t / t
2. Peak T = P x Z + T
8TQ... Series
4
Bulletin PD-20561 rev. C 01/01
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Fig. 8 - Unclamped Inductive Test Circuit
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
Fig. 6 - Forward Power Loss Characteristics
Fig. 7 - Maximum Non-Repetitive Surge Current
FREE-WHEEL
DIO DE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
140
145
150
155
160
165
170
175
180
024681012
DC
Allowable Case Temperature - ( C)
F(AV)
see note (2)
Average Forward Current - I (A)
Square wave (D = 0.50)
80% Rated V applied
R
0
1
2
3
4
5
6
7
024681012
DC
Average Power Loss - (Watts)
F(AV)
RMS Limit
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
Average Forward Current - I (A)
100
1000
10 100 1000 10000
FSM
p
Non-Repetitive Surge Current - I (A)
Square W ave Pulse D uration - t (m icrosec)
At Any Rated Load Condition
And With Rated V Applied
Following Surge RRM
(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
= 80% rated VR
8TQ... Series
5
Bulletin PD-20238 rev. C 01/01
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Outline Table
Conform to JEDEC outline TO-220AC
Dimensions in millimeters and (inches)
3.78 (0.15)
3.54 (0.14)
10.54 (0.41)
MAX.
DIA.
15.24 (0.60)
14.84 (0.58)
2.92 (0.11)
2.54 (0.10)
1
TERM 2
14.09 (0.55)
13.47 (0.53)
3.96 (0.16)
3.55 (0.14)
0.94 (0.04)
0.69 (0.03)
4.57 (0.18)
4.32 (0.17)
30.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
6.48 (0.25)
6.23 (0.24)
0.10 (0.004)
1.40 (0.05)
1.15 (0.04)
2.89 (0.11)
2.64 (0.10)
1
3
2.04 (0.080) MAX.
Conform to JEDEC outline D2Pak (SMD-220)
Dimensions in millimeters and (inches)
10.16 (0.40)
REF.
8.89 (0.35)
4.57 (0.18)
4.32 (0.17)
0.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
13
6.47 (0.25)
6.18 (0.24)
93°
REF.
2.61 (0.10)
2.32 (0.09)
5.28 (0.21)
4.78 (0.19)
4.69 (0.18)
4.20 (0.16)
0.55 (0.02)
0.46 (0.02)
14.73 (0.58)
15.49 (0.61)
1.40 (0.055)
1.14 (0.045)
3X
0.93 (0.37)
0.69 (0.27)
2X
11.43 (0.45)
17.78 (0.70)
8.89 (0.35)
3.81 (0.15)
2.08 (0.08)
2X
2.54 (0.10)
2X
MINIMUM RECOMMENDED FOOTPRINT
2
Anode
13
Base
Cathode
Cathode
Anode
13
Base
Cathode
2
N
/C
8TQ... Series
6
Bulletin PD-20561 rev. C 01/01
www.irf.com
Ordering Information Table
Device Code
1 5
243
1- Essential Part Number
2- T = TO-220
3- Q = Schottky Q Series
4- Voltage Rating
5-S=D
2Pak
8 T Q 100 S
080 = 80V
100 = 100V
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. 01/01