VARISTOR TVS 18VDC 500A 1210

VC121018J390DP

Manufacturer Part NumberVC121018J390DP
DescriptionVARISTOR TVS 18VDC 500A 1210
ManufacturerAVX Corporation
SeriesTransGuard®
VC121018J390DP datasheet
Product Change Notification
 


Specifications of VC121018J390DP

Package / Case1210 (3225 Metric)Varistor Voltage25.5V
Current-surge500ANumber Of Circuits1
Maximum Ac Volts13VACMaximum Dc Volts18VDC
Energy1.5JVoltage Rating Dc18 V
Voltage Rating Ac13 VClamping Voltage42 V
Peak Surge Current500 AmpsSurge Energy Rating1.5 J
Capacitance3100 pFOperating Temperature Range- 55 C to + 125 C
Current Rating5 AmpsDimensions2.49 mm W x 3.2 mm L x 1.7 mm H
MountingSMD/SMTProductMLV
Termination StyleSMD/SMTTechnologyMultilayer Single
Capacitance Value3100pFClamping Current5A
Ac Voltage Rating (max)13VACDc Voltage Rating (max)18VDC
Operating Temp Range-55C to 125CSurge Current (max)500A
Size Code1210Product Length (mm)3.2mm
Product Depth (mm)2.49mmProduct Height (mm)1.7mm
Lead Free Status / RoHS StatusLead free / RoHS CompliantOther names478-2525-2
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®
TransGuard
AVX Multilayer Ceramic Transient Voltage Suppressors
GENERAL DESCRIPTION
The AVX TransGuard
®
Transient Voltage Suppressors (TVS)
with unique high-energy multilayer construction represents
state-of-the-art overvoltage circuit protection. Monolithic
multilayer construction provides protection from voltage
transients caused by ESD, lightning, NEMP, inductive switch-
ing, etc. True surface mount product is provided in EIA
industry standard packages. Thru-hole components are
supplied as conformally coated axial devices.
TRANSGUARD
®
DESCRIPTION
TransGuard
®
products are zinc oxide (ZnO) based ceramic
semiconductor devices with non-linear voltage-current charac-
teristics (bi-directional) similar to back-to-back zener diodes.
They have the added advantage of greater current and energy
handling capabilities as well as EMI/RFI attenuation. Devices
are fabricated by a ceramic sintering process that yields a
structure of conductive ZnO grains surrounded by electrically
insulating barriers, creating varistor-like behavior.
The number of grain-boundary interfaces between conduct-
ing electrodes determines “Breakdown Voltage” of the
device. High voltage applications such as AC line protection
require many grains between electrodes while low voltage
requires few grains to establish the appropriate breakdown
voltage. Single layer ceramic disc processing proved to be a
viable production method for thick cross section devices
with many grains, but attempts to address low voltage
suppression needs by processing single layer ceramic disc
formulations with huge grain sites has had limited success.
AVX, the world leader in the manufacture of multilayer
ceramic capacitors, now offers the low voltage transient
protection marketplace a true multilayer, monolithic surface
mount varistor. Technology leadership in processing
thin dielectric materials and patented processes for
precise ceramic grain growth have yielded superior energy
dissipation in the smallest size. Now a varistor has voltage
characteristics determined by design and not just cell sorting
whatever falls out of the process.
Multilayer ceramic varistors are manufactured by mixing
ceramic powder in an organic binder (slurry) and casting it
into thin layers of precision thickness. Metal electrodes are
deposited onto the green ceramic layers which are then
stacked to form a laminated structure. The metal electrodes
are arranged so that their terminations alternate from one
end of the varistor to the other. The device becomes a
monolithic block during the sintering (firing) cycle providing
uniform energy dissipation in a small volume.
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VC121018J390DP Summary of contents

  • Page 1

    ... The AVX TransGuard ® Transient Voltage Suppressors (TVS) with unique high-energy multilayer construction represents state-of-the-art overvoltage circuit protection. Monolithic multilayer construction provides protection from voltage transients caused by ESD, lightning, NEMP, inductive switch- ing, etc. True surface mount product is provided in EIA industry standard packages. Thru-hole components are supplied as conformally coated axial devices ...

  • Page 2

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors PART NUMBER IDENTIFICATION Surface Mount Devices Important: For part number identification only, not for construction of part numbers. The information below only defines the numerical value of part number digits, and cannot ...

  • Page 3

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors ELECTRICAL CHARACTERISTICS AVX Working Working Breakdown Clamping Part Number Voltage Voltage (DC) (AC) VC060303A100 _ _ 3.3 2.3 VC080503A100 _ _ 3.3 2.3 VC080503C100 _ _ 3.3 2.3 VC120603A100 _ _ 3.3 ...

  • Page 4

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors ELECTRICAL CHARACTERISTICS AVX Working Working Breakdown Clamping Part Number Voltage Voltage (DC) (AC) VA100018D400 _ _ 18.0 13.0 VC060326A580 _ _ 26.0 18.0 VC080526A580 _ _ 26.0 18.0 VC080526C580 _ _ 26.0 ...

  • Page 5

    Dimensions Dimensions: Millimeters (Inches) 0.51 ±0.05 (0.020" ±0.002") D Max. L Max. 25.4 (1.0") Min. Lead Length DIMENSIONS: mm (inches) AVX Style mm (L) Max Length (in.) mm (D) Max Diameter (in.) Lead Finish: Copper Clad Steel, Solder Coated DIMENSIONS: ...

  • Page 6

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES VOLTAGE/CURRENT CHARACTERISTICS Multilayer construction and improved grain structure result in excellent transient clamping characteristics amps peak current, while maintaining very low leakage currents under DC operating ...

  • Page 7

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES VOLTAGE/CURRENT CHARACTERISTICS Multilayer construction and improved grain structure result in excellent transient clamping characteristics up to 500 amps peak current, depending on case size and energy rating, while maintaining ...

  • Page 8

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES 8 (0603, 0805, 1206 & 1210 CHIP SIZES) 3.3V ...

  • Page 9

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES TEMPERATURE CHARACTERISTICS ® TransGuard suppressors are designed to operate over the full temperature range from -55°C to +125°C. This operating temperature range is for both surface mount and axial ...

  • Page 10

    TransGuard AVX Multilayer Ceramic Transient Voltage Suppressors TYPICAL PERFORMANCE CURVES PULSE DEGRADATION Traditionally varistors have suffered degradation of electrical perfor- mance with repeated high current pulses resulting in decreased breakdown voltage and increased leakage current. It has been suggested ...