MCS0402AT(2009) Просмотр технического описания (PDF) - Vishay Semiconductors

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MCS0402AT
(Rev.:2009)

Professional Thin Film Chip Resistor Superior Moisture Resistivity

Vishay Semiconductors 

MCS 0402 AT, MCT 0603 AT, MCU 0805 AT, MCA 1206 AT - Professional

Vishay Beyschlag

Professional Thin Film Chip Resistor

Superior Moisture Resistivity

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 (Al2O3) ceramic substrate 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. Only

accepted products are laid directly into the paper tape in

accordance with IEC 60286-3 (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 (3). 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. 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 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

The resistors are approved 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 (3) series. The detail specification refers to

the climatic category 55/125/56, which relates to the

“standard operation mode” of this datasheet.

Conformity is attested by the use of the CECC Logo ( ) as

the Mark of Conformity on the package label. For

MCS 0402 AT and zero ohm jumpers the certification

according to DIN EN 140401-801:2008-05 is pending.

Vishay BEYSCHLAG has achieved “Approval of

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.

The resistors are qualified according to AEC-Q200.

RELATED PRODUCTS

This product family of thin film flat chip resistors is completed

by Zero Ohm Jumpers.

For more information about products with better TCR and

tighter tolerance please refer to the precision datasheet

document no. 28785.

Chip resistor arrays may be used in sensing applications or

precision amplifiers where close matching between multiple

resistors is necessary. Please refer to the

ACAS AT - Precision datasheet document no. 28770.

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/index.php?id=995

→ issues → environment policy → chemicals → chemicals for electronics

(3) The quoted IEC standards are also released as EN standards with the same number and identical contents

www.vishay.com

5

For technical questions, contact: thinfilmchip@vishay.com

Document Number: 28760

Revision: 07-Dec-09

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