CMA Vishay, CMA Datasheet - Page 4

• Manufacturer Part Number: CMA
• Description: High Pulse Load Melf Resistor
• Manufacturer: Vishay

DESCRIPTION
Production of the CMA 0204 speciality MELF resistors with
advanced pulse load capability is strictly controlled and
follows an extensive set of instructions established for
reproducibility. A homogeneous and dense carbon film is
deposited on a high grade ceramic body (85 % Al
plated steel termination caps are firmly pressed on the
coated rods. A special laser is used to achieve the target
value by smoothly cutting a helical groove in the resistive
layer without damaging the ceramics. The resistors are
covered by protective coating designed for electrical,
mechanical and climatic protection.The terminations receive
a final pure tin on nickel plating. Four color code rings
designate the resistance value and tolerance in accordance
with IEC 60 062*.
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. Only accepted products are laid directly
into the blister tape in accordance with IEC 60 286-3*.
ASSEMBLY
The resistors are suitable for processing on automatic
SMD assembly systems. They are suitable for automatic
soldering using wave, reflow or vapour phase as shown in
IEC 61760-1*. Excellent solderability is proven, even after
extended storage in excess of 10 years. The encapsulation
is resistant to all cleaning solvents commonly used in the
electronics industry, including alcohols, esters and aqueous
solutions. The resistors are completely lead (Pb)-free, the
pure tin plating provides compatibility with lead (Pb)-free
soldering processes. The immunity of the plating against tin
whisker growth has been proven under extensive testing.
All products comply with the GADSL
EECA-EICTA
substances. This includes full compliance with the following
directives:
• 2000/53/EC End of Vehicle life Directive (ELV) and Annex II
• 2002/95/EC Restriction of the use of Hazardous
• 2002/96/EC Waste Electrical and Electronic Equipment
1)
2)
Document Number: 28717
Revision: 18-Jul-06
(ELV II)
Substances Directive (RoHS)
Directive (WEEE)
Global Automotive Declarable Substance List, see www.gadsl.org
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
2)
list of legal restrictions on hazardous
For technical questions contact: [e-mail]
1)
and the CEFIC-
High Pulse Load MELF Resistor
2
O
3
). Nickel
APPROVALS
Where applicable the resistors are tested in accordance with
EN 140401-803 (superseding CECC 40401-803) which
refers to EN 60115-1, EN 140400 and the variety of
enviromental text procedures of the IEC 60068* series.
Vishay
Manufacturer" in accordance with IEC QC 001002-3,
clause 2. The release certificate for “Technology Approval
Schedule” in accordance with CECC 240001 based on
IEC QC 001002-3, clause 6 is granted for the Vishay
BEYSCHLAG manufacturing process.
Note:
* The quoted IEC standards are also released as EN standards with
the same number and identical contents.
BEYSCHLAG
has
Vishay Beyschlag
achieved
CMA 0204
"Approval
www.vishay.com
of
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