MMU0102HF Datasheet, PDF (4/11 Pages) Vishay Siliconix – High Frequency Thin Film MELF Resistors

www.vishay.com
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
Vishay Beyschlag
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 (85 % Al₂O₃, for MICRO-MELF: 96 %
Al₂O₃) and conditioned to achieve the desired temperature
coefficient. Nickel plated steel termination caps are firmly
pressed on the metallized rods. A special laser is used to
achieve the target value by smoothly cutting a non helical
pattern with a resulting low inductance in the resistive layer
without damaging the ceramics. The resistor elements are
covered by a protective coating designed for electrical,
mechanical and climatic protection. The terminations
receive a final pure matte tin on nickel plating. Four or five
color code rings designate the resistance value and
tolerance in accordance with IEC 60062 ⁽¹⁾. Additional black
dots near the 3^rd color ring identify the special HF product.
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. Only accepted products are laid directly
into the blister tape in accordance with IEC 60286-3, Type
2a ⁽¹⁾.
ASSEMBLY
The resistors are suitable for processing on automatic SMD
assembly systems. They are suitable for automatic
soldering using wave, reflow or vapor 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 completely lead (Pb)-free, 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, however,
excellent solderability is proven after extended storage in
excess of 10 years. The permitted storage time is 20 years.
The immunity of the plating against tin whisker growth has
been proven under extensive testing.
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 ⁽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.
APPROVALS
Where applicable the resistors are tested in accordance with
EN 140 401-803 which refers to EN 60115-1, EN 60115-8
and the variety of environmental text procedures of the
IEC 60068 ⁽¹⁾ series.
Vishay Beyschlag has achieved “Approval of
Manufacturer” in accordance with IECQ 03-1. The release
certificate for “Technology Approval Schedule” in
accordance with CECC 240001 based on IECQ 03-3-1 is
granted for the Vishay Beyschlag manufacturing process.
RELATED PRODUCTS
For products with professional specification see the
datasheet:
“Professional Thin Film MELF Resistors”
(www.vishay.com/doc?28713)
Resistors are available with established reliability in
accordance with EN 140401-803 version E. Please refer to
datasheet “MELF Resistors with Established Reliability”.
(www.vishay.com/doc?28707)
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: 26-Oct-15
4
Document Number: 28718
For technical questions, contact: [e-mail]
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