MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
www.vishay.com
Vishay Beyschlag
High Frequency Thin Film MELF Resistors
FEATURES
• Specialty product for RF applications
• Low-inductance non-helical trimmed product
• Suitable for more than 10 GHz
• Force fitted steel caps
• Intrinsic sulfur resistance
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
MMU 0102 HF, MMA 0204 HF, and MMB 0207 HF specialty
thin film MELF resistors for RF applications are the perfect
choice in high frequency circuit designs where the
impedance change due to the parasitic inductance of
regular and professional resistors can not be accepted.
Typical applications are in the fields of telecommunication
equipment and industrial electronics.
• Telecommunication equipment
• Industrial electronics
TECHNICAL SPECIFICATIONS
DESCRIPTION
DIN size
Metric size code
Resistance range
Resistance tolerance
Temperature coefficient
Rated dissipation,
P
70 (1)
Operating voltage,
U
max.
AC
RMS
/DC
Permissible film temperature,
F max. (1)
Operating temperature range
(1)
Permissible voltage against ambient (insulation):
1 min;
U
ins
Failure rate: FIT
observed
Note
(1)
Please refer to APPLICATION INFORMATION below
200 V
300 V
0.05
x 10
-9
/h
500 V
0.3 W
MMU 0102 HF
0102
RC2211M
6.8
to 470
±2%
MMA 0204 HF
0204
RC3715M
1.5
to 475
±1%
± 50 ppm/K
0.4 W
Limited by
P
70
155 °C
-55 °C to +155 °C
1.0 W
MMB 0207 HF
0207
RC6123M
6.8
to 470
±2%
APPLICATION INFORMATION
When the resistor dissipates power, a temperature rise above the ambient temperature occurs, dependent on the thermal
resistance of the assembled resistor together with the printed circuit board. The rated dissipation applies only if the permitted
film temperature is not exceeded.
These resistors do not feature a limited lifetime when operated within the permissible limits. However, resistance value drift
increasing over operating time may result in exceeding a limit acceptable to the specific application, thereby establishing a
functional lifetime.
Revision: 30-Sep-2021
Document Number: 28718
1
For technical questions, contact:
melf@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
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
www.vishay.com
Vishay Beyschlag
MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION
OPERATION MODE
MMU 0102 HF
Rated dissipation,
P
70
MMA 0204 HF
MMB 0207 HF
Operating temperature range
Permissible film temperature,
F max.
MMU 0102 HF
MMA 0204 HF
Max. resistance change at
P
70
for
resistance range, |R/R| after:
MMB 0207 HF
1000 h
8000 h
225 000 h
STANDARD
0.2 W
0.25 W
0.4 W
-55 °C to +125 °C
125 °C
6.8
to 470
1.5
to 475
6.8
to 470
0.25 %
0.5 %
1.5 %
POWER
0.3 W
0.4 W
1.0 W
-55 °C to +155 °C
155 °C
6.8
to 470
1.5
to 475
6.8
to 470
0.5 %
1.0 %
-
Note
• The presented operation modes do not refer to different types of resistors, but actually show examples of different loads, that lead to
different film temperatures and different achievable load-life stability (drift) of the resistance value. A suitable low thermal resistance of the
circuit board assembly must be safeguarded in order to maintain the film temperature of the resistors within the specified limits. Please
consider the application note “Thermal Management in Surface-Mounted Resistor Applications” (www.vishay.com/doc?28844) for
information on the general nature of thermal resistance
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE / SIZE
MMU 0102 HF
MMA 0204 HF
MMB 0207 HF
(1)
TCR
± 50 ppm/K
± 50 ppm/K
± 50 ppm/K
TOLERANCE
±2%
±1%
±2%
RESISTANCE
50
,
6.8
to 470
50
,
1.5
to 475
50
,
6.8
to 470
E-SERIES
(1)
E24
E24; E96
E24
Note
Please inquire for the availability of special resistance values
Revision: 30-Sep-2021
Document Number: 28718
2
For technical questions, contact:
melf@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
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
www.vishay.com
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. 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)
.
Vishay Beyschlag
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.
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.
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 test 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: 30-Sep-2021
Document Number: 28718
4
For technical questions, contact:
melf@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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