ACAC0612_1 Datasheet, PDF (4/6 Pages) Vishay Siliconix – Professional Thin Film Chip Resistor Array

ACAC 0612, ACAS 0612 - Professional
Professional Thin Film Chip Resistor Array _{Vishay Beyschlag}
APPLICATION INFORMATION
R₁
R₂
R₃
R₄
Circuit Type 03
DESCRIPTION
The production of the components 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 (96 % Al₂O₃) ceramic substrate
and conditioned to achieve the desired temperature
coefficient. Specially designed inner contacts are realised 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 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. Only
accepted products are laid directly into the paper tape in
accordance with IEC 60286-3*.
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*. For ACAC resistor arrays automatic soldering
using wave can also be used. 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, 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. The
permitted storage time is 20 years, whereas the solderability
is specified for 2 years after production or requalification. The
immunity of the plating against tin whisker growth has been
proven under extensive testing.
All products comply with the GADSL ⁽¹⁾ and the
CEFIC-EECA-EICTA ⁽²⁾ list of legal restrictions on
hazardous substances. This includes full compliance with
the following directives:
• 2000/53/EC End of Vehicle life Directive (ELV) and
Annex II (ELV II)
• 2002/95/EC Restriction of the use of Hazardous
Substances directive (RoHS)
• 2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
APPROVALS
Where applicable, the resistors are tested in accordance with
EN 140401-801 which refers to EN 60115-1 and EN 140400.
Notes
(1) _{Global Automotive Declarable Substance List, see www.gadsl.org}
(2) _{CEFIC (European Chemical Industry Council), EECA (European Electronic Component Manufacturers Association), EICTA (European trade}
organisation representing the information and communications technology and consumer electronics), see www.eicta.org → issues →
environment policy → chemicals → chemicals for electronics
• The quoted IEC standards marked with an asterisk (*) are also released as EN standards with the same number and identical contents
Document Number: 28754
Revision: 11-Sep-08
For technical questions, contact: [e-mail]
www.vishay.com
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