NEW PRODUCT
NEW PRODUCT
NEW PRODUCT
AVALANCHE ALTERNATOR RECTIFIER AS4024 AND AS4028
PASSIVATED ANISOTROPIC RECTIFIER TECHNOLOGY
Mean Breakdown Voltage -
24 and 28 volts
T
ED
*
CASE STYLE ASC
0.953(24.2)
0.937(23.8)
0.539(13.7)
0.524(13.3)
Peak Pulse Current -
80 Amperes
FEATURES
AT
P
EN
0.224(5.7)
0.208(4.3)
0.185(4.7)
0.169(4.3)
0.413(10.5) 0.342(8.7)
0.374(9.5) 0.327(8.3)
0.110(2.8)
0.094(2.4)
0.366(9.3)
0.343(8.7)
0.406(10.3)
0.382(9.7)
LEAD 1
0.205(5.2)
0.188(4.8)
0.098
(2.5)
MIN.
0.390(9.9)
0.374(9.5)
0.087(2.2)
0.071(1.8)
0.024(5.2)
0.023(.59)
簍
Plastic package has Underwriters Laboratory
Flammability Classification 94V-0
簍
High temperature stability due to unique oxide
passivation
簍
Patented Passivated Anisotropic Rectifier
(PAR) construction
簍
Integrally molded heatsink provides
a very low thermal resistance for
maximum heat dissipation
簍
Low leakage current at T
J
=175隆C
簍
Low forward voltage drop
簍
Ideally suited for alternator rectification and load dump
protection
簍
High temperature soldering guaranteed:
260隆C for 10 seconds at terminals
0.197(5.0)
0.185(4.7)
0.205(5.2)
0.188(4.8)
MECHANICAL DATA
Case:
Molded plastic body, surface mount with heatsink
integrally mounted in the encapsulation
Terminals:
Plated, solderable per MIL-STD-750,
Method 2026
Polarity:
Unidirectional as marked
Mounting Position:
Any
Weight:
0.095 ounces, 2.68 grams
0.028(0.7)
0.012(0.3)
LEAD 2/METAL HEATSINK
Dimensions in inches and (millimeters)
*
Patent #脮s
4,980,315
5,166,769
5,278,094
For positive polarity use 脪P脫.suffix, for negative polarity use 脪N脫 suffix
(Polarity refers to lead #1)
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
Ratings at 25隆C ambient temperature unless otherwise specified.
SYMBOLS
AS4024
AS4028
UNITS
Maximum working peak standoff voltage
Minimum reverse breakdown voltage at 100mA
Maximum reverse breakdown voltage at 100mA
Maximum clamping voltage for 10ms/10ms exponentially
decaying waveform at I
PP
=80A
Maximum average rectified forward current at T
C
=150
隆C
Peak forward surge current, 8.3ms single half sine-wave
Maximum instantaneous forward voltage at 100A
(NOTE 1)
Non- repetitive peak reverse surge current for 10ms/10ms
exponentially decaying waveform
Maximum reverse leakage current at rated V
WM
T
J
=25隆C
T
J
=175隆C
Maximum thermal resistance junction to case
(NOTE 2)
Operating junction and storage temperature range
NOTE:
(1) Measured on a 300ms square pulse width
(2) Mounted on alternator heat sink
NOTICE:
Advanced product information is subject to change without notice.
V
WM
V
(BR)
V
(BR)
V
C
I
(AV)
I
FSM
V
F
I
RSM
I
R
R
QJC
T
J
, T
STG
18.0
20.0
28.0
38.0
40.0
700.0
0.99
75.0
1.0
50.0
0.9
20.0
24.0
32.0
40.0
Volts
Volts
Volts
Volts
Amps
Amps
Volts
Amps
mA
隆C/W
隆C
-55 to +200
12/98
1
2
