www.vishay.com

Document Number: 28760

5

Revision: 07-Dec-09

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

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

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

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

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

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

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