SCHOTTKY RECTIFIER
8 Amp
8TQ...
8TQ...S
Bulletin PD-20561 rev. D 07/03
1
www.irf.com
Major Ratings and Characteristics
I
F(AV)
Rectangular
8
A
waveform
V
RRM
range
80 - 100
V
I
FSM
@ tp = 5 s sine
850
A
V
F
@
8 Apk, T
J
= 125C
0.58
V
T
J
range
- 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
battery protection.
175 C T
J
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
I
F(AV)
= 8 Amp
V
R
= 80 - 100V
Case Styles
8TQ...
TO-220
8TQ... S
D
2
PAK
8TQ... Series
2
Bulletin PD-20561 rev. D 07/03
www.irf.com
V
FM
Max. Forward Voltage Drop (1)
0.72
V
@ 8A
* See Fig. 1
0.88
V
@ 16A
0.58
V
@ 8A
0.69
V
@ 16A
I
RM
Max. Reverse Leakage Current (1)
0.55
mA
T
J
= 25 C
* See Fig. 2
7
mA
T
J
= 125 C
C
T
Max. Junction Capacitance
500
pF
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25 C
L
S
Typical Series Inductance
8
nH
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
10000
V/ s
(Rated V
R
)
T
J
= 25 C
T
J
= 125 C
V
R
= rated V
R
Electrical Specifications
Parameters
8TQ
Units
Conditions
(1) Pulse Width < 300s, Duty Cycle < 2%
T
J
Max. Junction Temperature Range
-55 to 175
C
T
stg
Max. Storage Temperature Range
-55 to 175
C
R
thJC
Max. Thermal Resistance Junction
2.0
C/W DC operation * See Fig. 4
to Case
R
thCS
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
V
R
Max. DC Reverse Voltage (V)
V
RWM
Max. Working Peak Reverse Voltage (V)
Voltage Ratings
I
F(AV)
Max. Average Forward Current
8
A
50% duty cycle @ T
C
= 157 C, rectangular wave form
* See Fig. 5
I
FSM
Max. Peak One Cycle Non-Repetitive
850
5s Sine or 3s Rect. pulse
Surge Current * See Fig. 7
230
10ms Sine or 6ms Rect. pulse
E
AS
Non-Repetitive Avalanche Energy
7.50
mJ
T
J
= 25 C, I
AS
= 0.50 Amps, L = 60 mH
I
AR
Repetitive Avalanche Current
0.50
A
Current decaying linearly to zero in 1 sec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
Parameters
8TQ
Units
Conditions
Absolute Maximum Ratings
A
Following any rated
load condition and
with rated V
RRM
applied
80
100
8TQ... Series
3
Bulletin PD-20238 rev. D 07/03
www.irf.com
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
Fig. 1 - Maximum Forward Voltage Drop Characteristics
0.1
1
10
100
1000
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8 2
2.2
FM
F
I
n
s
t
a
n
t
a
n
e
o
u
s
F
o
rw
a
r
d
C
u
rr
e
n
t
- I
(A
)
T = 175C
T = 125C
T = 25C
J
J
J
Forward Voltage Drop - V (V)
0.0001
0.001
0.01
0.1
1
10
100
0
20
40
60
80
100
R
R
150C
125C
100C
75C
50C
25C
R
e
v
e
rs
e
C
u
r
r
e
n
t
-
I
(
m
A
)
Reverse Voltage - V (V)
T = 175C
J
100
1000
0 10 20 30 40 50 60 70 80 90 100110
R
T
J
u
n
c
t
i
o
n
C
apac
i
t
a
n
c
e
-
C
(
p
F
)
Reverse Voltage - V (V)
T = 25C
J
0.001
0.01
0.1
1
10
0.00001
0.0001
0.001
0.01
0.1
1
10
100
th
J
C
t , Rectangular Pulse Duration (Seconds)
Single Pulse
(Thermal Resistance)
1
T
h
e
r
m
a
l
I
m
pedan
c
e
Z
(
C
/
W
)
D = 0.75
D = 0.50
D = 0.33
D = 0.25
D = 0.20
J
DM
thJC
C
1
2
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. D 07/03
www.irf.com
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
DIODE
40HFL40S02
CURRENT
MONITOR
HIGH-SPEED
SWITCH
IRFP460
L
DUT
Rg = 25 ohm
Vd = 25 Volt
+
140
145
150
155
160
165
170
175
180
0
2
4
6
8
10
12
DC
A
l
l
o
w
abl
e
C
a
s
e
T
e
m
p
e
r
at
u
r
e
-
(
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
0
2
4
6
8
10
12
DC
A
v
er
ag
e P
o
wer
L
o
s
s
-
(
W
a
t
t
s
)
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
FS
M
p
N
o
n-
R
epe
t
i
t
i
v
e
S
u
r
g
e C
u
r
r
e
n
t
-
I
(
A
)
Square Wave Pulse Duration - t (microsec)
At Any Rated Load Condition
And With Rated V Applied
Following Surge
RRM
(2) Formula used: T
C
= T
J
- (Pd + Pd
REV
) x R
thJC
;
Pd = Forward Power Loss = I
F(AV)
x V
FM
@ (I
F(AV)
/
D) (see Fig. 6);
Pd
REV
= Inverse Power Loss = V
R1
x I
R
(1 - D); I
R
@ V
R1
= 80% rated V
R
8TQ... Series
5
Bulletin PD-20238 rev. D 07/03
www.irf.com
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)
3
0.61 (0.02) MAX.
5.08 (0.20) REF.
1.32 (0.05)
1.22 (0.05)
6.48 (0.25)
6.23 (0.24)
2
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 D
2
Pak (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)
1
3
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
1
3
Base
Cathode
Cathode
Anode
1
3
Base
Cathode
2
N/C
8TQ... Series
6
Bulletin PD-20561 rev. D 07/03
www.irf.com
Ordering Information Table
Device Code
1
5
2
4
3
1
-
Essential Part Number
2
-
T = TO-220
3
-
Q = Schottky Q Series
4
-
Voltage Rating
5
-
S = D
2
Pak
8
T
Q
100
S
080 = 80V
100 = 100V
8TQ100
********************************************
* This model has been developed by *
* Wizard SPICE MODEL GENERATOR (1999) *
* (International Rectifier Corporation) *
* Contain Proprietary Information *
********************************************
* SPICE Model Diode is composed by a *
* simple diode plus paralled VCG2T *
********************************************
.SUBCKT 8TQ100 ANO CAT
D1 ANO 1 DMOD (0.07089)
*Define diode model
.MODEL DMOD D(IS=1.15938021883115E-03A,N=1.95244918720315,BV=120V,
+ IBV=5.37891460505463A,RS= 0.00127602,CJO=9.9895753025115E-09,
+ VJ=2.30070034831946,XTI=2, EG=0.758916909331649)
********************************************
*Implementation of VCG2T
VX 1 2 DC 0V
R1 2 CAT TRES 1E-6
.MODEL TRES RES(R=1,TC1=-90.2420977904848)
GP1 ANO CAT VALUE={-ABS(I(VX))*(EXP((((1.635248E-02/-90.2421)*((V(2,CAT)*1E6)/(I(VX)+1E-6)-
1))+1)*4.011038E-03*ABS(V(ANO,CAT)))-1)}
********************************************
.ENDS 8TQ100
Thermal Model Subcircuit
.SUBCKT 8TQ100 5 1
CTHERM1
5
4
1.45E+00
CTHERM2
4
3
4.54E+00
CTHERM3
3
2
1.09E+01
CTHERM4
2
1
1.01E+02
RTHERM1
5
4
2.49E+00
RTHERM2
4
3
5.20E-04
RTHERM1
3
2
5.43E-01
RTHERM1
2
1
3.05E-02
.ENDS 8TQ100
8TQ... Series
7
Bulletin PD-20238 rev. D 07/03
www.irf.com
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. 07/03
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.
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