BY448GP
New Product
Vishay Semiconductors
formerly General Semiconductor
DO-204AC (DO-15)
Miniature Clamper/Damper Glass
Passivated Rectifier
0.034 (0.86)
0.028 (0.71)
Dia.
Reverse Voltage
1650V
Forward Current
1.5A
Features
• Specially designed for clamping circuits, horizontal
deflection systems and damper applications
• Plastic package has Underwriters Laboratory
Flammability Classification 94V-0.
• High temperature metallurgically bonded construction
• Cavity-free glass passivated junction
• 1.5 Ampere operation at T
A
=50°C with no thermal runaway
• Typical I
R
less than 0.1µA
• Capable of meeting environmental standards of MIL-S-19500
• High temperature soldering guaranteed: 350°C/10 seconds,
0.375" (9.5mm) lead length, 5 lbs. (2.3kg) tension
1.0 (25.4)
min.
d*
nte
ate
P
0.300 (7.6)
0.230 (5.8)
®
0.140 (3.6)
0.104 (2.6)
Dia.
Mechanical Data
Case:
JEDEC DO-204AC, molded plastic over glass body
Terminals:
Plated axial leads, solderable per
MIL-STD-750, Method 2026
Polarity:
Color band denotes cathode end
Mounting Position:
Any
Weight:
0.015 oz., 0.4 g
1.0 (25.4)
min.
Dimensions
in inches and
(millimeters)
*
Glass-plastic encapsulation technique is covered by
Patent No. 3,996,602 and brazed-lead assembly by Patent No. 3,930,306.
Maximum Ratings & Thermal Characteristics
Ratings at 25°C ambient temperature unless otherwise specified.
Parameter
Maximum repetitive peak reverse voltage
Maximum RMS voltage
Maximum DC blocking voltage
Maximum average forward rectified current
0.375” (9.5mm) lead length at T
A
= 50°C
Peak forward surge current 8.3ms single half sine
wave superimposed on rated load (JEDEC Method)
Maximum full load reverse current full cycle
average 0.375” (9.5mm) lead length at T
A
= 100°C
Typical thermal resistance
(Note 1)
Symbol
V
RRM
V
RMS
V
DC
I
F(AV
)
I
FSM
I
R(AV)
R
ΘJA
T
J
, T
STG
Value
1650
1150
1650
1.5
40
50
55
–65 to +175
Unit
V
V
V
A
A
µA
°C/W
°C
Operating junction and storage temperature range
Electrical Characteristics
Parameter
Ratings at 25°C ambient temperature unless otherwise specified.
Symbol
V
F
I
R
t
rr
t
rr
C
J
T
A
= 25°C
T
A
= 100°C
typical
maximum
Value
1.6
5.0
100
20
0.5
1.5
15
Unit
V
µA
µs
µs
pF
Maximum instantaneous forward voltage at 3.0A
Maximum DC reverse current
at rated DC blocking voltage
Maximum reverse recovery time
at I
F
=0.5A, I
R
=1.0A, I
rr
=0.25A
Maximum reverse recovery time at I
F
= 0.5A, I
R
= 50mA
Typical junction capacitance at 4.0V, 1MHz
Note:
(1) Thermal resistance from junction to ambient at 0.375" (9.5mm) lead length, P.C.B. mounted
Document Number 88543
03-Jan-03
www.vishay.com
1
BY448GP
Vishay Semiconductors
formerly General Semiconductor
Ratings and
Characteristic Curves
(T
A
= 25°C unless otherwise noted)
Average Forward Rectified Current (A)
Fig.1 - Forward Current Derating Curve
1.5
1.25
50
Fig.2 - Maximum Non-Repetitive Peak
Forward Surge Current
Peak Forward Surge Current (A)
T
A
= 50°C
8.3ms Single Half Sine-Wave
40
60 Hz Resistive or
Inductive Load
0.375" (9.5mm)
Lead Length
1.0
T
J
= 25°C
No Load Condition
30
0.75
0.5
0.25
0
25
50
75
100
125
150
175
20
Capacitance Load
Ipk/I
AV
= 5.0
10
20
Rated Load Conditions
(JEDEC Method)
10
0
1
10
100
Ambient Temperature (°C)
Number of Cycles at 60 Hz
Fig.3 - Typical Instantaneous Forward
Characteristics
T
J
= 150°C
Fig.4 - Typical Reverse Characteristics
Instantaneous Reverse Current (µA)
10
Instantaneous Forward Current (A)
10
T
J
= 125°C
1
1
T
J
= 25°C
0.1
0.1
Pulse Width = 300µs
1% Duty Cycle
0.01
0.4
0.6
0.8
1.0
1.2
1.4
1.6
0.01
0
20
40
T
J
= 25°C
60
80
100
Instantaneous Forward Voltage (V)
Percent of Rated Peak Reverse Voltage (%)
Fig.5 - Typical Junction Capacitance
30
Junction Capacitance (pF)
T
J
= 25°C
f = 1.0 MHz
Vsig = 50mVp-p
10
1
1
10
100
Reverse Voltage (V)
www.vishay.com
2
Document Number 88543
03-Jan-03
Legal Disclaimer Notice
Vishay
Notice
Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc.,
or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies.
Information contained herein is intended to provide a product description only. No license, express or implied, by
estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Vishay's
terms and conditions of sale for such products, Vishay assumes no liability whatsoever, and disclaims any express
or implied warranty, relating to sale and/or use of Vishay products including liability or warranties relating to fitness
for a particular purpose, merchantability, or infringement of any patent, copyright, or other intellectual property right.
The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications.
Customers using or selling these products for use in such applications do so at their own risk and agree to fully
indemnify Vishay for any damages resulting from such improper use or sale.
Document Number: 91000
Revision: 08-Apr-05
www.vishay.com
1
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