AC01-CS, AC03-CS, AC05-CS
www.vishay.com
Vishay Draloric
Revision: 12-Jul-16
3
Document Number: 28909
For technical questions, contact: ww1resistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
DESCRIPTION
ACxx-CS wirewound safety resistor series is designed to be
used as fusible safety resistor (or, AC mains input resistors).
It uses specially selected resistive winding wire and special
inflammable silicon cement coating material to ensure safe
and silent fusing operation in overload conditions.
The resistor fuses “without a bang” when AC mains voltage
is applied. At the same time, it acts as an in-rush current
limiting resistor for the normal operation.
The specially developed lacquer coating has superior
thermal and electrical insulating properties. This allows
designers to more easily meet the requirements of safety
approval, whilst eliminating the need to put additional fuses
in series with the input resistor.
Production is strictly controlled and follows an extensive set
of instructions established for reproducibility. Plated steel
termination caps are firmly pressed on the ceramic rods.
Connecting wires of electrolytic copper plated with 100 %
pure tin are welded to the termination caps. Suitable
resistive wire is selected as a winding material. An optimized
number of windings are wound on a high grade ceramic
body. The resistor elements are covered by a green
protective coating designed for electrical, mechanical and
climatic protection. The special coating provides ideal and
silent fusing of the component in overload condition, without
burning or explosion.
The ohmic value, tolerance, rated dissipation is stamp
marked. Also “S” is marked for safety version and “4S” and
“6S” is marked for AC05-CS 4 kV and 6 kV version
respectively.
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. Only accepted products are stuck
directly on the adhesive tapes in accordance with
IEC 60286-1.
MATERIALS
Vishay acknowledges the following systems for the
regulation of hazardous substances:
• IEC 62474, Material Declaration for Products of and for the
Electrotechnical Industry, with the list of declarable
substances given therein
(1)
• The Global Automotive Declarable Substance List
(GADSL)
(2)
• The REACH regulation (1907/2006/EC) and the related list
of substances with very high concern (SVHC)
(3)
for its
supply chain
The products do not contain any of the banned substances
as per IEC 62474, GADSL, or the SVHC list, see
www.vishay.com/how/leadfree
. Hence the products fully
comply with the following directives:
• 2000/53/EC End-of-Life Vehicle Directive (ELV) and
Annex II (ELV II)
• 2011/65/EU Restriction of the Use of Hazardous
Substances Directive (RoHS) with amendment
2015/863/EU
• 2012/19/EU Waste Electrical and Electronic Equipment
Directive (WEEE)
Vishay pursues the elimination of conflict minerals from its
supply chain, see the Conflict Minerals Policy at
www.vishay.com/doc?49037.
ASSEMBLY
The resistors are suitable for processing on automatic
insertion equipment and cutting and bending machines.
Excellent solderability is proven, even after extended
storage. They are suitable for automatic soldering using
wave or dipping.
The resistors are completely lead (Pb)-free, the pure tin
plating provides compatibility with lead (Pb)-free and
lead-containing soldering processes. The immunity of the
plating against tin whisker growth, in compliance with
IEC 60068-2-82, has been proven under extensive testing.
The encapsulant is resistant to cleaning solvent specified in
IEC 60115-1
(4)
. The suitability of conformal coatings, if
applied, shall be qualified by appropriate means to ensure
the long-term stability of the whole system.
APPROVALS
These resistors (AC03-CS and AC05-CS) have UL1412
approval (UL file no. E362452).
RELATED PRODUCTS
For a correlated range of wirewound resistors with high
pulse handling capability, please see:
Z300-Cxx series
“High Surge Axial Cemented Wirewound Resistors”
www.vishay.com/doc?21027
For a correlated range of standard wirewound resistors,
please see:
Z300 series
“Industrial Axial Cemented Wirewound Resistors”
www.vishay.com/doc?21007
and Z300-C00 series
“Commercial Axial Cemented Wirewound Resistors”
www.vishay.com/doc?21047
Notes
(1)
The IEC 62474 list of declarable substances is maintained in a dedicated database, which is available at http://std.iec.ch/iec62474.
(2)
The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council and available at
www.gadsl.org.
(3)
The SVHC list is maintained by the European Chemical Agency (ECHA) and available at http://echa.europa.eu/candidate-list-table.
(4)
Other cleaning solvents with aggressive chemicals should be evaluated in actual cleaning process for their suitability.
