Product category:
Circuit Protection Devices
News Release from: VTM (UK) | Subject: Keko varicon devices
Edited by the Electronicstalk Editorial
Team on 25 June 2001
Surface-mount varicons for transient
suppression
Now available exclusively in the UK is the comprehensive range of Keko varicon devices, designed to provide circuit protection against surge voltages and ESD effects.
Now available exclusively in the UK is the comprehensive range of Keko varicon devices, designed to provide circuit protection against surge voltages and electrostatic discharge effects in electronics, automotive and telecommunications equipment Varicons are a new generation of multilayer zinc-oxide-based protective devices that combine the variable-resistance properties of varistors with variable capacitance
This article was originally published on Electronicstalk on 22 May 2001 at 8.00am (UK)
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Surface-mount varistors provide compact protection
The Keko PV Series of varistors are plastic encapsulated surface-mount devices designed to protect electronic equipment against high-voltage surges in low- and medium-voltage applications.
Subcontract electronic manufacturing services
VTM (UK) is expanding its scope of operation by offering a subcontract electronic manufacturing service to industry.
This capability, along with their bidirectional operation, fast response time, ruggedness and reliability, offers a number of benefits over traditional circuit protection solutions such as Zener diodes.
The Keko range includes the standard ZV Series, covering DC voltages from 3 to 170V in chip sizes from 0603 to 2220 with maximum single-pulse (8/20us) surge currents up to 1200A; the ZVE Series for ESD suppression, with low capacitance values and short response times in chip sizes from 0603 to 1210; and the low-profile medium-voltage DV Series, for voltages from 60 to 300V RMS in chip sizes 3225 and 4032 with maximum single-pulse (8/20us) surge currents up to 1200A.
A dedicated range (AV Series) for the automotive industry is also available, featuring supply voltages of 12, 24 or 42V in chip sizes from 0805 to 2220.
All Keko surface-mount varicons incorporate silver/palladium end terminations, which provide excellent solderability and leaching properties and are more environmentally friendly than nickel barrier devices.
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