PR01, PR02, PR03

www.vishay.com

Vishay BCcomponents

Revision: 11-Jul-2018

4

Document Number: 28729

For technical questions, contact: filmresistorsleaded@vishay.com

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

DESCRIPTION

Production 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 ceramic body and conditioned to achieve the desired

temperature coefficient. Plated steel termination caps are

firmly pressed on the metalized rods. Mostly, a special laser

is used to achieve the target value by smoothly cutting a

helical groove in the resistive layer without damaging the

ceramics. Connecting wires of electrolytic copper plated

with 100 % pure tin are welded to the termination caps.

The resistor elements are covered by a red, non-flammable

lacquer

protective

coating

designed

for

electrical,

mechanical, and climatic protection. Four or five color code

rings designate the resistance value and tolerance in

accordance with

IEC 60062.

The result of the determined production is verified by an

extensive testing procedure performed on 100 % of the

individual resistors. Only accepted products are stuck

directly on the adhesive tapes in accordance with

IEC 60286-1 or for the radial versions in accordance to

IEC 60286-2.

MATERIALS

Vishay acknowledges the following systems for the

regulation of hazardous substances:

• IEC 62474, Material Declaration for Products of and for the

Electrotechnical Industry, with the list of declarable

substances given therein (1)

• The

Global

Automotive

Declarable

Substance

List

(GADSL) (2)

• The REACH regulation (1907/2006/EC) and the related list

of substances with very high concern (SVHC) (3) for its

supply chain

The products do not contain any of the banned substances

as per IEC 62474, GADSL, or the SVHC list, see

www.vishay.com/how/leadfree.

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Hence the products fully comply with the following

directives:

• 2000/53/EC End-of-Life Vehicle Directive (ELV) and

Annex II (ELV II)

• 2011/65/EU

Restriction

of

the

Use

of

Hazardous

Substances

Directive

(RoHS)

with

amendment

2015/863/EU

• 2012/19/EU Waste Electrical and Electronic Equipment

Directive (WEEE)

Vishay pursues the elimination of conflict minerals from its

supply

chain,

see

the

Conflict

Minerals

Policy

at

www.vishay.com/doc?49037.

ASSEMBLY

The resistors are suitable for processing on automatic

insertion equipment and cutting and bending machines.

Excellent solderability is proven, even after extended

storage. They are suitable for automatic soldering using

wave or dipping.

The resistors are completely lead (Pb)-free, the pure tin

plating provides compatibility with lead (Pb)-free and

lead-containing soldering processes. The immunity of the

plating against tin whisker growth, in compliance with

IEC 60068-2-82, has been proven under extensive testing.

The encapsulant is resistant to cleaning solvent specified in

IEC 60115-1. The suitability of conformal coatings, if

applied, shall be qualified by appropriate means to ensure

the long-term stability of the whole system.

RELATED PRODUCTS

For a correlated range of Metal Film Resistors see the

datasheet:

“High Ohmic / High Voltage Metal Film Leaded Resistors”,



www.vishay.com/doc?30260

For product that offers high power dissipation and metal

oxide film technology see the datasheet:

“High Power Metal Oxide Leaded Resistors”,



www.vishay.com/doc?20128

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Notes

(1) The IEC 62474 list of declarable substances is maintained in a dedicated database, which is available at http://std.iec.ch/iec62474

(2) The Global Automotive Declarable Substance List (GADSL) is maintained by the American Chemistry Council, and available at

www.gadsl.org

(3) The SVHC list is maintained by the European Chemical Agency (ECHA) and available at http://echa.europa.eu/candidate-list-table