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SMM02040B10B1 Datasheet(PDF) 4 Page - Vishay Siliconix

No. de Pieza. SMM02040B10B1
Descripción  Thin Film Mini-MELF Resistors
Descarga  12 Pages
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Fabricante  VISHAY [Vishay Siliconix]
Página de inicio  http://www.vishay.com
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SMM02040B10B1 Datasheet(HTML) 4 Page - Vishay Siliconix

 
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SMM0204
www.vishay.com
Vishay Draloric
Revision: 09-Dec-15
4
Document Number: 20004
For technical questions, contact: melf@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 metal alloy is deposited on a high
grade ceramic body (Al2O3) and conditioned to achieve the
desired
temperature
coefficient.
Nickel
plated
steel
termination caps are firmly pressed on the metallized rods.
A special laser is used to achieve the target value by
smoothly cutting a helical groove in the resistive layer
without damaging the ceramic. The resistor elements are
covered by a protective coating designed for electrical,
mechanical and climatic protection. The terminations
receive a final pure matte tin on nickel and copper plating for
enhanced temperature cycling stability. Four or five color
code rings designate the resistance value and tolerance in
accordance with IEC 60062 (1).
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. This includes full screening for the
elimination of products with a potential risk of early field
failures (feasible for
R ≥ 10 Ω) according to EN 140401-803,
2.1.2.2. Only accepted products are laid directly into the
blister tape in accordance with IEC 60286-3, Type 2a (1).
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using wave, reflow or vapor 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 completely lead (Pb)-free, the pure matte
tin plating provides compatibility with lead (Pb)-free and
lead
containing
soldering
processes.
Solderability
is
specified for 2 years after production or requalification,
however, excellent solderability is proven after extended
storage in excess of 10 years. The permitted storage time is
20 years. The immunity of the plating against tin whisker
growth has been proven under extensive testing.
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 (2)
• The
Global
Automotive
Declarable
Substance
List
(GADSL) (3)
• The REACH regulation (1907/2006/EC) and the related list
of substances with very high concern (SVHC) (4) 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.
APPROVALS
The resistors are qualified according to AEC-Q200.
Resistors approved according to EN 140401-803 are
available by using the related ordering code.
RELATED PRODUCTS
MELF resistors of other sizes are available:
Thin Fim Micro-MELF Resistors SMM0102
(www.vishay.com/doc?20003)
Thin Fim MELF Resistors SMM0207
(www.vishay.com/doc?20005)
Resistors are available with established reliability in
accordance with EN 140401-803 Version E. Please refer to
datasheet “MELF Resistors with Established Reliability”
(www.vishay.com/doc?28707).
MS1 .... ESCC high-reliability thin film MINI-MELF resistors
are the premium choice for design and manufacture of
equipment, where matured technology and proven reliability
are of utmost importance. They are regularly used in
communication and research satellites and fit equally well
into aircraft and military electronic systems.
Approval of the MS1 .... ESCC products is granted by the
European Space Components Coordination and registered
in the ESCC Qualified Parts List, REP005.
(www.vishay.com/doc?28790).
Notes
(1) The quoted IEC standards are also released as EN standards with the same number and identical contents.
(2) The IEC 62474 list of declarable substances is maintained in a dedicated database, which is available at http://std.iec.ch/iec62474.
(3) The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council and available at
www.gadsl.org.
(4) The SVHC list is maintained by the European Chemical Agency (ECHA) and available at http://echa.europa.eu/candidate-list-table.


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