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 µsec 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 µs
from 0 Volts to BV
· Operation temperature: -40°C to +125°C
·
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 25º 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 µsec waveform Vc 625 max Volt
Reverse Leakage @ 423V
IR
20 µ max
A
MAX-470
MAXPakTM Series Curves
3.0
4.0
150
0
1.0
2.0
tr = 10µsec.
Peak Value
I
PPM
TJ = 25°C
Pulse Width(td)is defined
as the point where the
peak current decays to
50% of I
PPM
10/1000µsec.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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