HIGH-SPEED, HIGH-CURRENT SURGE PROTECTORS
PMT(301) Series
DESCRIPTION
CP Clare’s PMT(301) Series surge protectors (350-3500V) provide a high level of protection from high-speed,
high-current transient surges. These devices are constructed using a proprietary semiconductor junction process,
which results in nanosecond response times combined with peak current ratings in excess of 10kA.
FEATURES
s
s
s
s
APPLICATIONS
s
s
s
s
s
Fast impulse breakdown
Tight DC breakdown voltage tolerance (±10%)
Rugged ceramic-metal construction
Low capacitance
Test equipment
Medical electronics
Instrumentation circuits
TWT drive circuitry
Avionics
STANDARD VOLTAGES
Series
PMT(301)
DC Breakdown
Voltage (typ)
350
400
500
550
600
800
1.0
1.5
2.0
2.5
3.0
3.5
V
V
V
V
V
V
kV
kV
kV
kV
kV
kV
Unit
(See detailed specifications for more information.)
North America: 1-800-CPCLARE
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
552
TWO ELECTRODE HIGH VOLTAGE SURGE ARRESTERS
PMT(301) Series
SPECIFICATIONS
All characteristics at 25˚C
PMT(301)350
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
315
-
10
10
-
6000
TYP
350
-
-
-
-
MAX
385
1150
-
4.0
-
PMT(301)400
MIN
360
-
10
10
-
6500
TYP
400
-
-
-
-
MAX
440
1200
-
4.0
-
UNITS
V
V
Ω
pF
surges
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
PMT(301)500
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
450
-
10
10
-
7800
TYP
500
-
-
-
-
MAX
550
1300
-
4.0
-
PMT(301)550
MIN
495
-
10
10
-
8500
TYP
550
-
-
-
-
MAX
605
1350
-
4.0
-
UNITS
V
V
Ω
pF
surges
PMT(301)600
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
540
-
10
10
-
9300
TYP
600
-
-
-
-
MAX
660
1400
-
4.0
-
PMT(301)800
MIN
720
-
10
10
-
16600
TYP
800
-
-
-
-
MAX
880
1600
-
4.0
-
UNITS
V
V
Ω
pF
surges
PMT(301)1.0
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
0.9
-
10
10
-
29300
TYP
1.0
-
-
-
-
MAX
1.1
1.8
-
4.0
-
PMT(301)1.5
MIN
1.35
-
10
10
-
53700
TYP
1.50
-
-
-
-
MAX
1.65
2.3
-
4.0
-
UNITS
kV
kV
Ω
pF
surges
www.cpclare.com
553
TWO ELECTRODE HIGH VOLTAGE SURGE ARRESTERS
PMT(301) Series
SPECIFICATIONS
All characteristics at 25˚C
PMT(301)2.0
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
1.8
-
10
10
-
68100
TYP
2.0
-
-
-
-
MAX
2.2
2.55
-
4.0
-
PMT(301)2.5
MIN
2.25
-
10
10
-
68100
TYP
2.5
-
-
-
-
MAX
2.75
3.19
-
4.0
-
UNITS
kV
kV
Ω
pF
surges
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
PMT(301)3.0
PARAMETER
Device Specifications
DC Breakdown
Impulse Breakdown
Insulation Resistance
Capacitance
Life Ratings
Surge Life
CONDITIONS
100V/s
80kV/µs
100V
1MHz
100A (PW=20
µs)
SYMBOL
V
BD
V
bd
IR
C
-
MIN
2.7
-
10
10
-
68100
TYP
3.0
-
-
-
-
MAX
3.3
3.83
-
4.0
-
PMT(301)3.5
MIN
3.15
-
10
10
-
68100
TYP
3.5
-
-
-
-
MAX
3.85
4.47
-
4.0
-
UNITS
kV
kV
Ω
pF
surges
MECHANICAL DIMENSIONS
DIMENSIONS
mm
(inches)
19.05
±
0.76
(0.750
±
0.030)
ORDERING INFORMATION
Devices in the PMT(301) series with other breakdown voltages in
the 350 to 3500 V range are available upon request.
A complete part number is represented by the digits below.
Breakdown voltages are expressed in Volts for devices <1000V
and kV for devices
≥1KV.
For example, PMT(301)2.0 is a 2kV
PMT(301) series device.
1.93
±
0.13 DIA.
(0.076
±
0.005)
PMT(301) XXX
PMT(301) X.X
Series
8.00
±
0.13 DIA.
(0.315
±
0.005)
for 350-800V
for 1.0-3.5 kV
4.75
±
0.76
(0.187
±
0.030)
5.00
±
0.76 MAX.
(0.197
±
0.030)
PMT3(310)
Breakdown Voltage
See specifications
tables
North America: 1-800-CPCLARE
Europe: 32-11-300868
Asia: 886-2-2523-6368
Japan: 81-3-3980-2212
554
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