Product category:
Circuit Protection Devices
News Release from: Epcos | Subject: CeraDiode
Edited by the Electronicstalk Editorial
Team on 10 October 2003
Diodes provide fast-acting two-way
protection
The CeraDiode uses innovative multilayer varistor technology to provide bidirectional protection in one component, replacing a dual transient voltage surge or zener diode array.
The CeraDiode, based on innovative multilayer varistor (MLV) technology, provides bidirectional protection in one component, replacing a dual transient voltage surge (TVS) or zener diode array In addition to faster response times, the space and cost savings provided combine to make the devices the ideal ESD protection and transient suppression solution, particularly for space/cost critical consumer applications such as mobile phones, PDAs and MP3 players
This article was originally published on Electronicstalk on 28 Apr 2004 at 8.00am (UK)
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Ceramic diodes claim optimum ESD protection
The CeraDiode series of ceramic semiconductors is billed as providing optimum ESD protection of consumer electronics products and computer equipment.
CeraDiode's multilayer varistor technology enables filtering of high frequency transients negating the necessity of additional filtering capacitors in the case of zener and TVS diodes.
Moreover, the devices provide faster response times of less than 0.5ns, compared with zener and TVS diodes which are typically between 0.8 to 30ns, and greater robustness against ESD and surge current strikes.
The operating temperature range extends up to 85C.
The new CeraDiode range is available in three sizes of packages depending on type: 0603 single line, 0508 dual line and 0612 quad array.
Over the SOD325 packaged zener alternative the CD 0603 package saves 18% in board space, and for the dual CD 0508 package there is a 58% saving in board space compared with a dual TVS diode in a SOT23 package.
The CD 0612 delivers a board space saving of 41% compared with a TVS diode in an SOT23-xL package.
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