Catalogue AVX Transient Suppression Products
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Medium Power MLV (VC13, 14, 15, 20)
Medium Power Multilayer Chip Varistor
Transient Voltage Suppression, ESD Protection Devices & EMI Devices
TELECOM SERIES - VC14 (1812)
TARGET APPLICATIONS
FEATURES
• Phone Lines, ADSL Lines, and other Telecom Circuits
• Consumer Products
GENERAL CHARACTERISTICS
Storage Temperature: -55°C to +125°C Operating Temperature: -55°C to +125°C
• Pd/Ag Terminations
• High Energy Ratings (up to 6 Joules with 1812 case)
• Multiple Strike Capability
• Provides EMC Capacitance
• Effective Alternative to Leaded MOVs between 60-90Vrms
• Specified in accordance to CCITT 10/700ms Pulse test
CCITT 10x700ns TEST
A test pulse of 10x700us duration as specified by CCITT or IEC 61000-4-5 is often used to check the interference immunity of telecom equipment.
The curves show that the 60Vrms varistor can reduce the interference voltage at the equipment connected from 2kV to less than 200V.
10/700 Telecom Test Pulse Wave-Form
2000 1500
1-1-1—
Without Varistor (Open-circuit voltage)
e
ra
1000 500 0
10/700 Pulse Test Capability Typical V1mA Drift
/Vith a 60Vrms lelecom Varistor
(Protection level <200V)
10%
8% 6% 4% 2%
0%
60Vrms
0 0.2 0.4 0.6 0.8 1 Time (ms)
1.2 1.4 1.6
< E
I
TD
Ten pulses with a duration of 10x700us applied at one minute intervals are specified for telecom equipment.
The curves show the V1mA drift when more than 10 pulses are applied.
1
10
100
1000
Pulses
PART NUMBERS
Part Number
Operating
Vclamp
Energy
Max Ipeak
Mean
CCITT
Typical
Voltage
(8x20us)
(10x1000us)
(8x20us)
Power
10Pulse
Cap
1 Surge
Dissipation
(10x700us)
Vrms
Vdc
Vp
Ip
J
Ip (A)
W
V
pF
VC14MT0600KBA
60
85
200
45
6
400
0.015
2000
400
VC14MT0950KBA
95
125
270
45
5
250
0.015
2000
250
/aW<
14
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