08/
14/02
MDE Semiconductor, Inc.
78-150 Calle Tampico, Unit 210, La Quinta, CA., USA 92253 Tel : 760-564-8656 Fax : 760-564-2414
1-800-831-4881 Email: sales@mdesemiconductor.com Web: www.mdesemiconductor.com
MAXPak TM Series
MAX-470
HIGH CURRENT TRANSIENT VOLTAGE SUPPRESSOR
FEATURES
UL1449 Recognition
4KA Surge Capability @ 8 x 20 sec waveform
(per IEC- 61000-4-5)
Peak Power Dissipation 288KW
Bi-directional
Excellent clamping capability
Repetition rate (duty cycle): 0.05%
Sharp breakdown voltage
Low incremental surge resistance
Fast response time: typically less than 1.0 s
from 0 Volts to BV
Operation temperature: -40C to +125C
Epoxy encapsulated package has Underwriters
Laboratory Flammability Classification 94 V-0
MECHANICAL DATA
Terminal: Ag Plated Axial leads, solderable per
MIL-STD-750. Method 2026
Mounting Position: Any
Weight: 0.328 0.033 ounces (9.300 0.930 g)
MAXIMUM RATINGS AND CHARACTERISTICS
Ratings at 25 C ambient temperature unless otherwise specified.
RATING SYMBOL
VALUE
UNITS
Reversed Standoff Voltage
Vrwm
423
Volt
Breakdown Voltage @ IT=1.0mA
Vbr
470 5%
Volt
Clamping Voltage @
460A / 10x1000 sec waveform Vc 625 max Volt
Reverse Leakage @ 423V
IR
20 max
A
MAX-470
MAXPakTM Series Curves
3.0
4.0
150
0
1.0
2.0
tr = 10sec.
Peak Value
I
PPM
TJ = 25C
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of I
PPM
10/1000sec.Waveform
as defined by R.E.A.
td
Fig.3 - Pulse Waveform
4.0
50
Half Value- I
PPM
2
100
I
PPM
-
P
eak
P
u
ls
e C
u
r
r
ent
,
%
I
RS
M
3.0
0
t - Time(ms)
10/21/2002
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