NSxT, NSFxT, NSBxT
Vishay Semiconductors
formerly General Semiconductor
Glass Passivated General Purpose
Plastic Rectifier
Reverse Voltage 50 to 1000
Forward Current 8.0A
0.08
(2.032)
0.24
(6.096)
0.42
(10.66)
0.63
(17.02)
0.12
(3.05)
0.33
(8.38)
Mounting Pad Layout TO-263AB
0.380 (9.65)
0.411 (10.45)
0.320 (8.13)
0.360 (9.14)
0.591 (15.00)
0.624 (15.85)
1
2
0.245 (6.22)
MIN
K
0.027 (0.686)
0.037 (0.940)
0.105 (2.67)
0.095 (2.41)
0.205 (5.20)
0.195 (4.95)
K
0.160 (4.06)
0.190 (4.83)
0.045 (1.14)
0.055 (1.40)
0.021 (0.53)
0.014 (0.36)
0.110 (2.79)
0.140 (3.56)
0.090 (2.29)
0.110 (2.79)
0.047 (1.19)
0.055 (1.40)
PIN 1
PIN 2
K - HEATSINK
0-0.01 (0-0.254)
0.060 (1.52)
0.405 (10.27)
0.383 (9.72)
0.191 (4.85)
0.171 (4.35)
0.600 (15.5)
0.580 (14.5)
0.560 (14.22)
0.530 (13.46)
0.037 (0.94)
0.027 (0.69)
0.140 (3.56)
0.130 (3.30)
0.350 (8.89)
0.330 (8.38)
0.188 (4.77)
0.172 (4.36)
0.110 (2.80)
0.100 (2.54)
0.131 (3.39)
0.122 (3.08)
0.110 (2.80)
0.100 (2.54)
0.022 (0.55)
0.014 (0.36)
0.205 (5.20)
0.195 (4.95)
1
2
PIN
DIA.
DIA.
PIN 1
PIN 2
0.676 (17.2)
0.646 (16.4)
ITO-220AC (NSFxT)
TO-220AC (NSxT)
Dimensions in inches
and (millimeters)
TO-263AB (NSBxT)
0.154 (3.91)
0.148 (3.74)
DIA.
0.113 (2.87)
0.103 (2.62)
0.185 (4.70)
0.175 (4.44)
0.055 (1.39)
0.045 (1.14)
0.145 (3.68)
0.135 (3.43)
0.350 (8.89)
0.330 (8.38)
0.160 (4.06)
0.140 (3.56)
0.037 (0.94)
0.027 (0.68)
0.205 (5.20)
0.195 (4.95)
0.560 (14.22)
0.530 (13.46)
0.022 (0.56)
0.014 (0.36)
0.110 (2.79)
0.100 (2.54)
1
2
1.148 (29.16)
1.118 (28.40)
0.105 (2.67)
0.095 (2.41)
0.410 (10.41)
0.390 (9.91)
0.635 (16.13)
0.625 (15.87)
0.603 (15.32)
0.573 (14.55)
PIN
0.415 (10.54) MAX.
PIN 1
PIN 2
CASE
0.370 (9.40)
0.360 (9.14)
Features
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
High forward current capability
High surge current capability
Low forward voltage drop
Glass passivated chip junction
High temperature soldering guaranteed:
260C/10 seconds, 0.160" (4.06mm) lead
length
Mechanical Data
Case: JEDEC TO-220AC, ITO-220AC &
TO-263AB molded plastic body
Terminals: Plated leads solderable per
MIL-STD-750, Method 2026
Polarity: As marked
Mounting Torque: 10 in. -lbs. max.
Mounting Position: Any
Weight: 0.064 ounce, 1.81 grams
Document Number 88690
www.vishay.com
08-Jul-02
1
NSxT, NSFxT, NSBxT
Vishay Semiconductors
formerly General Semiconductor
Maximum Ratings & Thermal Characteristics
Ratings at 25C ambient temperature unless otherwise specified.
NS8
NS8
NS8
NS8
NS8
NS8
NS8
Parameter
Symbols
AT
BT
DT
GT
JT
KT
MT
Units
Maximum repetitive peak reverse voltage
V
RRM
50
100
200
400
600
800
1000
V
Maximum RMS voltage
V
RMS
35
70
140
280
420
560
700
V
Maximum DC blocking voltage
V
DC
50
100
200
400
600
800
1000
V
Maximum average forward rectified current
at T
C
=100C
I
F(AV)
8.0
A
Peak forward surge current
8.3ms single half sine-wave superimposed on
I
FSM
125
A
rated load (JEDEC Method)
Operating junction and storage temperature range
T
J
, T
STG
-55 to +150
C
RMS Isolation voltage (NSF type only)
4500
(1)
from terminals to heatsink
V
ISOL
3500
(2)
V
with t = 1.0 second, RH
30%
1500
(3)
Electrical Characteristics
Ratings at 25C ambient temperature unless otherwise specified.
NS8
NS8
NS8
NS8
NS8
NS8
NS8
Parameter
Symbols
AT
BT
DT
GT
JT
KT
MT
Units
Maximum instantaneous forward voltage at 8.0A
V
F
1.1
V
Maximum DC reverse current
at rated DC blocking voltage
T
C
=25C
I
R
10
A
T
C
=100C
100
Typical junction capacitance at 4.0V, 1MHz
C
J
55
pF
Thermal Characteristics
Ratings at 25C ambient temperature unless otherwise specified.
Parameter
Symbols
NSxT
NSFxt
NSBxt
Units
Typical thermal resistance
(4)
R
JC
3.0
5.0
3.0
C/W
Notes:
(1) Clip mounting (on case), where lead does not overlap heatsink with 0.110" offset
(2) Clip mounting (on case), where leads do overlap heatsink
(3) Screw mounting with 4-40 screw, where washer diameter is
4.9mm (0.19")
(4) Thermal resistance from junction to case mounted on heat sink
www.vishay.com
Document Number 88690
2
08-Jul-02
NSxT, NSFxT, NSBxT
Vishay Semiconductors
formerly General Semiconductor
Ratings and
Characteristic Curves
(T
A
= 25C unless otherwise noted)
Case Temperature (
C)
Fig. 1 Forward Current
Derating Curve
A
verage Forward Current (A)
Fig. 3 Typical Instantaneous
Forward Characteristics
Instantaneous Forward Voltage (V)
Instantaneous Forward Current (A)
Percent of Rated Peak Reverse Voltage (%)
Instantaneous Reverse Current (
A)
Fig. 4 Typical Reverse
Characteristics
1
10
100
50
25
0
75
100
125
150
175
Number of Cycles at 60 H
Z
Fig. 2 Maximum Non-Repetitive
Peak Forward Surge Current
Peak Forward Surge Current (A)
Reverse Voltage (V)
Junction Capacitance (pF)
Fig. 5 Typical Junction
Capacitance Per Leg
0
50
100
150
0
2.0
4.0
6.0
8.0
10
60 H
Z
Resistive or Inductive Load
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
0.1
1
10
100
0
20
40
60
80
100
0.1
1
10
100
0.1
1
10
100
1,000
0
20
40
60
80
100
120
T
J
= 25
C
f = 1.0MH
Z
Vsig = 50MVp-p
1.0 Cycle
T
J
= T
J
max.
8.3ms Single Half Sine-Wave
(JEDEC Method)
T
J
= 75
C
T
J
= 25
C
T
J
= 100
C
Pulse Width = 300
s
1% Duty Cycle
Document Number 88690
www.vishay.com
08-Jul-02
3
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