SIOV metal oxide varistors
Leaded varistors, SuperioR, S25 series
Series/Type: B722*
Date: January 2018
EPCOS AG 2018. Reproduction, publication and dissemination of this publication, enclosures hereto and the
information contained therein without EPCOS' prior express consent is prohibited.
EPCOS AG is a TDK Group Company.Leaded varistors B722*
SuperioR, S25 series
Construction
Round varistor element, leaded
Coating: epoxy resin, flame-retardant to UL 94 V-0
Terminals: tinned wire
Features
High-energy SuperioR series E4
Wide operating voltage range 130 750 V
RMS
All types duty cycle @ 6 kV/ 3 kA = >10 pulses, according to IEC 62368-1; G.8.2 and IEC
60950-1; Annex Q, IEC 61051-2
UL approval to UL 1449 (file number E321126 exception 580 V)
Very high surge current rating up to 20 kA
Approvals
UL
CSA
IEC
VDE
Delivery mode
Bulk (standard)
For further details refer to chapterTaping, packaging and lead configuratio for leaded
varistors.
General technical data
Climatic category to IEC 60068-1 40/105/56
Operating temperature to IEC 61051 40 ... +105 C
Storage temperature 40 ... +125 C
Electric strength to IEC 61051 2.5 kV
RMS
Insulation resistance to IEC 61051 100 M
Please read Cautions and warnings and Page 2 of 23
Important notes at the end of this document.