TNPW040220K0BEED Просмотр технического описания (PDF) - Vishay Semiconductors

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TNPW040220K0BEED

High Stability Thin Film Flat Chip Resistors

Vishay Semiconductors 

www.vishay.com

TNPW e3

Vishay

DESCRIPTION

MATERIALS

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 ceramic substrate (AI2O3) 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

fine trimming the resistive layer without damaging the

ceramics. A further conditioning is applied in order to

stabilize 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.

The result of the determined production is verified by an

extensive testing procedure and optical inspection

performed on 100 % of the individual chip resistors. This

includes full screening for the elimination of products with a

potential risk of early life failures (feasible for R  10 ). Only

accepted products are laid directly into the tape in

accordance with IEC 60286-3, Type 1a (1).

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 (1). 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, potting compounds

and their processes, 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.

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 (2)

• The Global Automotive Declarable Substance List

(GADSL) (3)

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

of substances with very high concern (SVHC) (4) 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.

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.

RELATED PRODUCTS

The TNPW with SnPb termination plating is designed for

those applications, where lead bearing terminations are

mandatory. For ordering TNPW with SnPb terminations

please refer to latest edition of datasheet TNPW

(www.vishay.com/doc?31006).

TNPU e3 ultra precision thin film flat chip resistors combine

the proven reliability of TNPW e3 products with a most

advanced level of precision and stability

(www.vishay.com/doc?28779).

TNPS .... ESCC high-reliability thin film chip resistors are the

premium choice for design and manufacture of equipment,

where matured technology and proven reliability are

of utmost importance. They are regularly used in

communication and research satellites and fit equally well

into aircraft and military electronic systems.

Approval of the TNPS .... ESCC products is granted by the

European Space Components Coordination and registered

in the ESCC Qualified Parts List, REP005

(www.vishay.com/doc?28789).

TNPV e3 High Voltage Thin Film Flat Chip Resistors are

designed for most fields of modern electronics where

precision, reliability and stability at high operating voltage

are primary concerns (www.vishay.com/doc?28881).

Notes

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

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

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

www.gadsl.org.

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

Revision: 12-May-16

5

Document Number: 28758

For technical questions, contact: thinfilmchip@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

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