Datasheet

ManualsBrandsVISHAY ManualsResistorsMetal film resistor 0 Ω SMD 0204 0.4 W 1 % 50 ppm 3000 pc(s)

www.vishay.com For technical questions, contact: melf@vishay.com Document Number: 28714

44 Revision: 05-Mar-12

MMU 0102, MMA 0204, MMB 0207 - Precision

Vishay Beyschlag

Precision MELF Resistors

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

Notes

• Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.

• Resistance values to be selected from E24 and E192 series, for other values please contact the factory.

• Approval to EN 140401-803, “Version A”, is not available for ± 15 ppm/K; ± 0.5 %.

DESCRIPTION

Production is strictly controlled and follows an extensive set

of instructions established for reproducibility. A homo-

geneous film of metal alloy is deposited on a high grade

ceramic body (Al

) and conditioned to achieve the desired

temperature coefficient. Nickel plated steel termination caps

are firmly pressed on the metallised 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.

A further conditioning is applied in order to stabilise the

trimming result. 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. Five color code rings designate the

resistance value and tolerance in accordance with

IEC 60062

(3)

The result of the determined production is verified by an

extensive testing procedure performed on 100 % of the

individual resistors. This includes pilse load screening (for R

 10 ) and additional non-linearity screening (for R  30 )

for the elimination of products with a potential risk of early life

failures 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 II

(3)

or bulk case in accordance with

IEC 60286-6

(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)

. 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 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.

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.

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)

 2011/65/EU 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 140401-803 which refers to EN 60115-1,

EN 140400 and the variety of environmental test procedures

of the IEC 60068

(3)

series.

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

the mark of conformity on the package label.

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.