BYS459-1500, BYS459F-1500, BYS459B-1500
Vishay Semiconductors
formerly General Semiconductor
New Product
High Voltage Damper Diodes
Reverse Voltage 1500V
Forward Current 6.5A
Reverse Recovery Time 350ns
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 (BYS459F)
TO-220AC (BYS459)
Dimensions in inches
and (millimeters)
TO-263AB (BYS459B)
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 Laboratories
Flammability Classification 94V-0
Ideally suited CRT horizontal deflection
Fast reverse recovery time
Fast forward recovery time
High temperature soldering in accordance with CECC
802 / Reflow guaranteed
Glass passivated chip junction
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 Position: Any
Mounting Torque: 10 in-lbs maximum
Weight: 0.08 oz., 2.24 g
Document Number 88550
www.vishay.com
25-Jul-02
1
BYS459-1500, BYS459F-1500, BYS459B-1500
Vishay Semiconductors
formerly General Semiconductor
Maximum Ratings
(T
A
= 25C unless otherwise noted)
Parameter
Symbol
Value
Unit
Maximum repetitive peak reverse voltage
V
RRM
1500
V
Maximum working reverse voltage
V
RWM
1300
V
Maximum DC blocking voltage
V
DC
1500
V
Maximum average forward rectified current
I
F(AV)
6.5
A
Peak working forward current at f = 48kH
Z
I
F(Peak)
12
A
Peak forward surge current
8.3ms single half sine-wave superimposed
I
FSM
130
A
on rated load (JEDEC Method) at T
J
= 150C
Operating junction and storage temperature range
T
J
, T
STG
55 to +150
C
RMS Isolation voltage (BYS459F types only)
4500
(1)
from terminals to heatsink with t = 1.0 second, RH
30%
V
ISOL
3500
(2)
V
1500
(3)
Electrical Characteristics
(T
J
= 25C unless otherwise noted)
Parameter
Symbol
Value
Unit
Maximum instantaneous
I
F
= 6.5A, T
J
= 25C
V
F
1.3
V
forward voltage
(4)
I
F
= 6.5A, T
J
= 125C
1.2
Maximum DC reverse current at V
RWM
T
J
= 25C
I
R
250
A
T
J
= 125C
1.0
mA
Maximum reverse recovery time at
I
F
= 1.0A, di/dt = 50A/
s, V
R
= 30V
t
rr
350
ns
Maximum reverse recovery charge at
I
F
= 2.0A, di/dt = 20A/
s
Q
rr
3.0
C
Maximum forward recovery time
250
I
F
= 6.5A, di/dt = 52A/
s
t
fr
ns
Peak forward recovery overshoot voltage
V
FP
20
V
I
F
= 6.5A, di/dt = 52A/
s
Thermal Characteristics
(T
A
= 25C unless otherwise noted)
Parameter
Symbol
BYS459
BYS459F
BYS459B
Unit
Typical thermal resistance from junction to ambient
R
JA
60
55
60
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
4.9 mm (0.19")
(4) Pulse test: 300
s pulse width, 1% duty cycle
www.vishay.com
Document Number 88550
2
25-Jul-02
0
0.5
1.0
1.5
2.0
2.5
0
200
400
600
800
1000
1200 1400 1600
0.1
1
10
100
150
175
125
100
75
50
25
0
2
4
6
8
10
12
0.01
0.1
1
10
100
1000
Instantaneous Reverse Current (
A)
Fig. 4 Typical Reverse Current
Fig. 1 Forward Current
Derating Curve
Fig. 3 Typical Forward Voltage
A
verage Forward Current (A)
V
F
Instantaneous Voltage (V)
Tc - Case Temperature (
C)
Number of Cycles at 60 H
Z
0
2
4
6
8
10
12
0
50
100
150
200
250
300
350
400
450
Fig. 6 Typical Reverse
Recovery Time
t
rr
, Reverse Recovery
T
ime (ns)
I
F,
Forward Current (A)
V
R
Reverse Voltage (V)
I
F
Instantaneous Forward Current (A)
V
R,
Reverse Voltage (V)
Fig. 5 Typical Capacitance
Junction Capacitance (pF)
0.1
1
10
100
1
10
100
1000
0
40
60
80
100
120
140
20
1
100
10
Fig. 2 Maximum Non-Repetitive Peak
Forward Surge Current
Peak Forward Surge Current (A)
BYS459-1500
BYS459B-1500
BYS459F-1500
T
J
= 125
C
T
J
= 25
C
T
J
= 100
C
T
J
= 125
C
T
J
= 25
C
di/dt = 50A/
s
di/dt = 100A/
s
BYS459-1500, BYS459F-1500, BYS459B-1500
Vishay Semiconductors
formerly General Semiconductor
Ratings and
Characteristic Curves
(T
A
= 25C unless otherwise noted)
Document Number 88550
www.vishay.com
25-Jul-02
3
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