Bulletin PD-20862 rev. B 06/06
8TQ...PbF Series
SCHOTTKY RECTIFIER
8 Amp
I
F(AV)
= 8 Amp
V
R
= 60/ 100V
Major Ratings and Characteristics
Characteristics
I
F(AV)
Rectangular
waveform
V
RRM
range
I
FSM
@ tp = 5
μs
sine
V
F
T
J
@ 8 Apk, T
J
= 125°C
range
Description/ Features
Units
A
V
A
V
°C
The 8TQ...PbF 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 re-
verse 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
Lead-Free ("PbF" suffix)
Values
8
60/ 100
850
0.58
- 55 to 175
Case Styles
Base
Cathode
2
1
3
Cathode
Anode
TO-220AC
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1
8TQ...PbF Series
Bulletin PD-20862 rev. B 06/06
Voltage Ratings
Part number
V
R
Max. DC Reverse Voltage (V)
60
80
100
V
RWM
Max. Working Peak Reverse Voltage (V)
8TQ060PbF
8TQ080PbF
8TQ100PbF
Absolute Maximum Ratings
Parameters
I
F(AV)
Max. Average Forward Current
* See Fig. 5
I
FSM
E
AS
I
AR
Max. Peak One Cycle Non-Repetitive
Surge Current * See Fig. 7
Non-Repetitive Avalanche Energy
Repetitive Avalanche Current
8TQ
8
850
230
7.50
0.50
Units
A
Conditions
50% duty cycle @ T
C
= 157° C, rectangular wave form
Following any rated
load condition and
10ms Sine or 6ms Rect. pulse with rated V
RRM
applied
5μs Sine or 3μs Rect. pulse
T
J
= 25 °C, I
AS
= 0.50 Amps, L = 60 mH
Current decaying linearly to zero in 1
μsec
Frequency limited by T
J
max. V
A
= 1.5 x V
R
typical
A
mJ
A
Electrical Specifications
Parameters
V
FM
Max. Forward Voltage Drop
* See Fig. 1
(1)
8TQ
0.72
0.88
0.58
0.69
Units
V
V
V
V
mA
mA
pF
nH
V/
μs
@ 8A
@ 16A
@ 8A
@ 16A
T
J
= 25 °C
T
J
= 125 °C
Conditions
T
J
= 25 °C
T
J
= 125 °C
V
R
= rated V
R
I
RM
C
T
L
S
Max. Reverse Leakage Current (1)
* See Fig. 2
Max. Junction Capacitance
Typical Series Inductance
0.55
7
500
8
10000
V
R
= 5V
DC
(test signal range 100Khz to 1Mhz) 25 °C
Measured lead to lead 5mm from package body
dv/dt Max. Voltage Rate of Change
(Rated V
R
)
(1) Pulse Width < 300μs, Duty Cycle < 2%
Thermal-Mechanical Specifications
Parameters
T
J
T
stg
Max. Junction Temperature Range
Max. Storage Temperature Range
8TQ
-55 to 175
-55 to 175
2.0
0.50
2 (0.07)
Min.
Max.
6 (5)
12 (10)
Units
°C
°C
°C/W
°C/W
g (oz.)
Kg-cm
(Ibf-in)
Conditions
R
thJC
Max. Thermal Resistance Junction
to Case
R
thCS
Typical Thermal Resistance, Case to
Heatsink
wt
T
Approximate Weight
Mounting Torque
Marking Device
DC operation * See Fig. 4
Mounting surface , smooth and greased
8TQ100
2
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8TQ...PbF Series
Bulletin PD-20862 rev. B 06/06
1000
100
10
1
0.1
0.01
0.001
0.0001
T = 175°C
J
150°C
125°C
100°C
75°C
50°C
25°C
100
Ins
tantaneousForward Current - I F (A)
R
everse Current - I
R
(mA)
0
20
40
60
80
100
10
TJ= 175°C
TJ= 125°C
TJ= 25°C
Revers Voltage - VR (V)
e
Fig. 2 - Typical Values of Reverse Current
Vs. Reverse Voltage
1000
Junction Capacitance - C T (pF)
1
T = 25°C
J
0.1
0
0.2 0.4 0.6 0.8
1
1.2 1.4 1.6 1.8
2
2.2
100
0 10 20 30 40 50 60 70 80 90 100110
Reverse Volta ge - VR (V)
Forward Voltage Drop - VFM (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics
Fig. 3 - Typical Junction Capacitance
Vs. Reverse Voltage
10
(°C/W)
thJC
D = 0.75
D = 0.50
D = 0.33
1
D = 0.25
D = 0.20
Single Pulse
(Thermal Resistance)
0.1
1E-04
Thermal Impedance Z
1E-03
1E-02
1E-01
1E+00
t
1
, Rectangular Pulse Duration (Seconds)
Fig. 4 - Maximum Thermal Impedance Z
thJC
Characteristics
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3
8TQ...PbF Series
Bulletin PD-20862 rev. B 06/06
180
Allowable Case Temperature - (°C)
7
Average Power Loss - (Watts)
6
5
4
RMSLimit
3
2
1
0
DC
D = 0.20
D = 0.25
D = 0.33
D = 0.50
D = 0.75
175
170
165
160
155
150
145
see note (2)
DC
S
quare wave (D = 0.50)
80% Rated V
R
applied
140
0
2
4
6
8
10
12
0
2
4
6
8
10
12
(A)
Average Forward Current - I
F(AV)
(A)
Average Forward Current - I
F(AV)
Fig. 5 - Maximum Allowable Case Temperature
Vs. Average Forward Current
1000
Non-Repetitive Surge Current - I FS (A)
M
Fig. 6 - Forward Power Loss Characteristics
At Any R
ated Load Condition
And With R
ated V RR Applied
M
Following S
urge
100
10
100
1000
10000
S
quare Wave Pulse Duration - t p (microsec)
Fig. 7 - Maximum Non-Repetitive Surge Current
L
HIGH-S
PEED
S CH
WIT
F
REE-WHEEL
DIODE
40HF 40S
L 02
+
DUT
IR P460
F
R = 25 ohm
g
Vd = 25 Volt
CURRENT
MONIT
OR
Fig. 8 - Unclamped Inductive Test Circuit
(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
4
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8TQ...PbF Series
Bulletin PD-20862 rev. B 06/06
Outline Table
Conform to JEDEC outline TO-220AC
Dimensions in millimeters and (inches)
Part Marking Information
IRXC Assembly Line - SubCon Assembly Line
EXAMPLE: THIS IS A 8TQ100
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
IN THE ASSEMBLY LINE "C"
INTERNATIONAL
RECTIFIER
LOGO
DATE CODE
ASSEMBLY
LOT CODE
P = LEAD-FREE
YEAR 1 = 2001
WEEK 19
LINE C
PART NUMBER
IRMX Assembly Line
EXAMPLE: THIS IS A 8TQ100
LOT CODE 1789
ASSEMBLED ON WW 19, 2001
IN THE ASSEMBLY LINE "C"
INTERNATIONAL
RECTIFIER
LOGO
PART NUMBER
DATE CODE
ASSEMBLY
LOT CODE
YEAR 1 = 2001
WEEK 19
P = LEAD-FREE
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5
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