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MCW406AT Datasheet(PDF) 4 Page - Vishay Siliconix

Part No. MCW406AT
Description  Precision Wide Terminal Thin Film Chip Resistors
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Maker  VISHAY [Vishay Siliconix]
Homepage  http://www.vishay.com
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MCW406AT Datasheet(HTML) 4 Page - Vishay Siliconix

   
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MCW 0406 AT - Precision
www.vishay.com
Vishay Beyschlag
Revision: 22-Jan-15
4
Document Number: 28847
For technical questions, contact: thinfilmchip@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
Production is strictly controlled and follows an extensive
set of instructions established for reproducibility. A
homogeneous film of special metal alloy is deposited on a
high grade ceramic substrate (Al2O3) and conditioned to
achieve the desired temperature coefficient. Specially
designed inner contacts are deposited on both sides. A
special laser is used to achieve the target value by smoothly
cutting a meander groove in the resistive layer without
damaging the ceramics. The resistor elements are covered
by a unique protective coating designed for electrical,
mechanical and climatic protection. The terminations
receive a final pure tin on nickel plating.
The result of the determined production is verified by an
extensive
testing
procedure
and
optical
inspection
performed on 100 % of the individual chip resistors. This
includes full screening for the elimination of products with
potential risk of early field failures (feasible for R
 10 ).
Only accepted products are laid directly into the paper tape
in accordance with IEC 60286-3 Type 1a (1).
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using reflow or vapour phase as shown in
IEC 61760-1 (1). The encapsulation is resistant to all
cleaning solvents commonly used in the electronics
industry, including alcohols, esters and aqueous solutions.
The suitability of conformal coatings, potting compounds
and their processes, if applied, shall be qualified by
appropriate means to ensure the long-term stability of the
whole system.
The resistors are RoHS compliant; the pure tin plating
provides
compatibility
with
lead
(Pb)-free
and
lead-containing
soldering
processes.
Solderability
is
specified for 2 years after production or requalification. The
permitted storage time is 20 years. The immunity of the
plating against tin whisker growth has been proven by
extensive testing.
All
products
comply
with
the
IEC 62474,
Material
Declaration for Products of and for the Electrotechnical
Industry.
The dedicated database (2), that list declarable substances,
ensures full compliance 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)
• 2012/19/EU Waste Electrical and Electronic Equipment
Directive (WEEE)
APPROVALS
Where applicable the resistors are tested within the
IECQ-CECC Quality Assessment System for Electronic
Components to the detail specification EN 140401-801
which refers to EN 60115-1, EN 140400 and the variety of
environmental test procedures of the IEC 60068 (1) series.
The detail specification refers to the climatic category
55/125/56, which relates to the “standard operation mode”
of this datasheet.
Vishay
BEYSCHLAG
has
achieved
“Approval
of
Manufacturer” in accordance with IECQ 03-1. The release
certificate
for
“Technology
Approval
Schedule”
in
accordance with CECC 240001 based on IECQ 03-3-1, is
granted
for
the
Vishay
BEYSCHLAG
manufacturing
process.
RELATED PRODUCTS
For an alternative range of TCR and tolerance see the
datasheet:
• Professional Wide Terminal Thin Film Chip Resistors
(www.vishay.com/doc?28796)
Notes
(1) The quoted IEC standards are also released as EN standards with the same number and identical contents.
(2) IEC 62474 database can be found at http://std.iec.ch/iec62474.


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