Document Number: 28758 For technical questions, contact: thinfilmchip@vishay.com
www.vishay.com
Revision: 27-Jun-12 339
TNPW e3
High Stability Thin Film Flat Chip Resistors
Vishay
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
Note
(1)
1000 pieces packaging is available only for precision resistors with tolerance ± 0.1 % and temperature coefficient
± 25 ppm/K.
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
AI
2
O
3
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 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 on 100 % of the individual
chip resistors. This includes pulse load screening for the
elimination of products with a potential risk of early life
failures according to EN 140401-801, 2.1.2.2. Only accepted
products are laid directly into the tape in accordance with
EN 60286-3.
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. 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. The immunity of the
plating against tin whisker growth has been proven under
extensive testing.
All products comply with the GADSL
(2)
and the
CEFIC-EECA-EICTA
(3)
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)
The resistors are Halogen-free according to JEDEC JS709A
definition.
Solderability is specified for 2 years after production or
re-qualification. The permitted storage time is 20 years.
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 data sheet TNPW, document
number 31006.
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, document number 28789.
Notes
(2)
Global Automotive Declarable Substance List, see www.gadsl.org.
(3)
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
issue
environment policy chemicals chemicals for electronics.
PACKAGING
TYPE CODE QUANTITY CARRIER TAPE WIDTH PITCH REEL DIAMETER
TNPW0402 e3 ET7 = ED 10 000
Paper tape
acc. IEC 60286-3
Type I
8 mm
2 mm 180 mm / 7"
TNPW0603 e3
TNPW0805 e3
TNPW1206 e3
TNPW1210 e3
E52 = EN
1000
(1)
4 mm 180 mm / 7"
ET1 = EA 5000
ET6 = EC 20 000 4 mm 330 mm / 13"
TNPW2010 e3 E75 = EY 1000
Blister tape
acc. IEC 60286-3
Type II
12 mm 4 mm 180 mm / 7"
TNPW2512 e3
E75 = EY 1000
E67 = EG 2000
