SMM0102
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Thin Film Micro-MELF Resistors
SMM0102 thin film Micro-MELF resistors are the perfect
choice for most fields of modern professional electronics
where reliability and stability is of major concern. The typical
applications in the fields of automotive and medical
equipment reflect the outstanding level of proven reliability.
FEATURES
• Advanced thin film technology
• Low TCR and tight tolerances
• Excellent stability in different environmental
conditions
• Intrinsic sulfur resistance
• Material categorization:
for definitions of compliance please see
www.vishay.com/doc?99912
APPLICATIONS
• Automotive
• Telecommunication
• Industrial
• Medical equipment
Note
(1) Please refer to APPLICATION INFORMATION below.
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.
TECHNICAL SPECIFICATIONS
DESCRIPTION SMM0102
DIN size 0102
Metric size code RC2211M
Resistance range 10 Ω to 2.21 MΩ; 0 Ω
Resistance tolerance ± 1 %; ± 0.1 %
Temperature coefficient ± 50 ppm/K; ± 25 ppm/K; ± 15 ppm/K
Rated dissipation, P70 (1) 0.200 W
Operating voltage, Umax. ACRMS/DC 150 V
Permissible film temperature,
ϑ
F max. (1) 125 °C
Operating temperature range (1) -55 °C to 125 °C
Permissible voltage against ambient (insulation):
1 min; Uins 200 V
Failure rate: FITobserved ≤ 0.1 x 10-9/h
SMM0102
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Note
• 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.
Note
(1) Package of 1000 pieces, code B1, is available only for products with tolerance ± 0.1 %.
MAXIMUM RESISTANCE CHANGE AT RATED DISSIPATION
OPERATION MODE STANDARD
Rated dissipation, P70 SMM0102 0.200 W
Operating temperature range -55 °C to 125 °C
Permissible film temperature,
ϑ
F max. 125 °C
Max. resistance change at P70 for resistance range,
|ΔR/R| after:
SMM0102 10 Ω to 2.21 MΩ
1000 h ≤ 0.5 %
8000 h ≤ 1 %
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
TYPE / SIZE TCR TOLERANCE RESISTANCE E-SERIES
SMM0102
± 50 ppm/K ± 1 % 10 Ω to 2.21 MΩE24; E96
± 25 ppm/K ± 0.1 % 100 Ω to 100 kΩ
E24; E192
± 15 ppm/K ± 0.1 % 100 Ω to 100 kΩ
OMM0102 Jumper, Imax. = 2 A ≤ 10 mΩ0 Ω-
PACKAGING
TYPE / SIZE CODE QUANTITY PACKAGING STYLE WIDTH PITCH PACKAGING
DIMENSIONS
SMM0102
OMM0102
B1 (1) 1000
Antistatic blister tape acc.
IEC 60286-3, Type 2a 8 mm 4 mm
Ø 180 mm / 7"
B3 3000 Ø 180 mm / 7"
B0 10 000 Ø 330 mm / 13"
SMM0102
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Revision: 04-Dec-15 3Document Number: 20003
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Note
• Products can be ordered using either the PART NUMBER or PRODUCT DESCRIPTION.
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: SMM01020D5620BB300
Part Number: OMM01020000000B300
TYPE / SIZE VERSION TCR RESISTANCE TOLERANCE PACKAGING
SMM0102
OMM0102
0 = neutral E = ± 15 ppm/K
D = ± 25 ppm/K
C = ± 50 ppm/K
0 = jumper
3 digit value
1 digit multiplier
0000 = Jumper
Multiplier
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
B = ± 0.1 %
F = ± 1 %
0 = jumper
B1
B3
B0
Product Description: SMM0102 25 562R 0.1 % B3
Product Description: OMM0102 0R0 B3
SMM0102 25 562R 0.1 % B3
OMM0102 - 0R0 - B3
TYPE / SIZE TCR RESISTANCE TOLERANCE PACKAGING
SMM0102
OMM0102
± 15 ppm/K
± 25 ppm/K
± 50 ppm/K
100 = 100 Ω
2M21 = 2.21 MΩ
0R0 = jumper
± 0.1 %
± 1 %
B1
B3
B0
MM0102000O000B3000
MM01020D5S20BB3006
SMM0102
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Revision: 04-Dec-15 4Document Number: 20003
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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 (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 helical groove in the resistive layer
without damaging the ceramic. 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 and copper plating for
enhanced temperature cycling stability. Four or five color
code rings designate the resistance value and tolerance in
accordance with IEC 60062 (1).
The result of the determined production is verified by an
extensive testing procedure performed on 100 % of the
individual resistors. This includes full screening for the
elimination of products with a potential risk of early field
failures according to EN 140401-803, 2.1.2.2. 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.
RELATED PRODUCTS
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).
MS1 .... ESCC high-reliability thin film MINI-MELF 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 MS1 .... ESCC products is granted by the
European Space Components Coordination and registered
in the ESCC Qualified Parts List, REP005
(www.vishay.com/doc?28790).
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.
SMM0102
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Revision: 04-Dec-15 5Document Number: 20003
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FUNCTIONAL PERFORMANCE
Derating
160
°C
-50
50
0
W
100
70
Ambient Temparature amb
Power Dissipation P
ϑ
125
0
0.050
0.150
0.200
0.250
0.100
SMM0102
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Revision: 04-Dec-15 6Document Number: 20003
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TESTS AND REQUIREMENTS
All tests are carried out in accordance with the following
specifications:
EN 60115-1, generic specification
EN 60115-8 (successor of EN 140400), sectional
specification
EN 140401-803, detail specification
IEC 60068-2-xx, test methods
The parameters stated in the Test Procedures and
Requirements table are based on the required tests and
permitted limits of EN 140401-803. The table presents only
the most important tests, for the full test schedule refer to
the documents listed above. However, some additional
tests and a number of improvements against those
minimum requirements have been included.
The testing also covers most of the requirements specified
by EIA/ECA-703 and JIS-C-5201-1.
The tests are carried out under standard atmospheric
conditions in accordance with IEC 60068-1, 4.3, whereupon
the following values are applied:
Temperature: 15 °C to 35 °C
Relative humidity: 25 % to 75 %
Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 mbar).
A climatic category LCT / UCT / 56 is applied, defined by the
lower category temperature (LCT), the upper category
temperature (UCT), and the duration of exposure in the
damp heat, steady state test (56 days).
The components are mounted for testing on printed circuit
boards in accordance with EN 60115-8, 2.4.2, unless
otherwise specified.
Note
(1) The quoted IEC standards are also released as EN standards with the same number and identical contents.
TEST PROCEDURES AND REQUIREMENTS
EN
60 115-1
CLAUSE
IEC
60 068-2 (1)
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
Stability for product types:
SMM0102 < 211 kΩ> 211 kΩ
4.5 - Resistance - ± 1.0 % R; ± 0.1 % R± 1.0 % R
4.8 -Temperature
coefficient
At (20 / -55 / 20) °C
and (20 / 125 / 20) °C
± 50 ppm/K; ± 25 ppm/K;
± 15 ppm/K; ± 50 ppm/K
4.25.1 -
Endurance at 70 °C:
standard
operation mode
U = ≤ Umax.;
whichever is the less severe;
1.5 h on; 0.5 h off;
70 °C; 1000 h ± 0.25 % R± 0.5 % R
70 °C; 8000 h ± 0.5 % R± 1 % R
4.25.3 -
Endurance at
upper category
temperature
125 °C; 1000 h ± 0.25 % R± 1 % R
4.24 78 (Cab) Damp heat,
steady state
(40 ± 2) °C; 56 days;
(93 ± 3) % RH ± 0.5 % R± 1 % R
4.19 14 (Na) Rapid change
of temperature
30 min at LCT;
30 min at UCT;
LCT = -55 °C;
UCT = 125 °C;
5 cycles
± 0.1 % R± 0.15 % R
4.13 -Short time overload U = 2.5 x
≤ 2 x Umax.; 2 s ± 0.1 % R± 0.15 % R
4.18 58 (Td) Resistance to
soldering heat
Solder bath method;
(260 ± 5) °C; (10 ± 1) s ± 0.1 % R± 0.25 % R
P70 x R
P70 x R
SMM0102
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Revision: 04-Dec-15 7Document Number: 20003
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DIMENSIONS
Notes
• Color code marking is applied according to IEC 60062 (1) in four bands (E24 series) or five bands (E96 series). Each color band appears as
a single solid line, voids are permissible if at least 2/3 of the band is visible from each radial angle of view. The last color band for tolerance
is approximately 50 % wider than the other bands. An interrupted band between the 4th and 5th full band indicates the temperature
coefficient.
• Zero ohm jumper are marked with one centered black band.
PATTERN STYLES FOR MELF RESISTORS
Notes
• The given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards IEC 61188-5-x (1),
or in publication IPC-7351.
(1) The quoted IEC standards are also released as EN standards with the same number and identical contents.
DIMENSIONS AND MASS
TYPE / SIZE L
(mm)
D
(mm)
L1 min.
(mm)
D1
(mm)
K
(mm)
MASS
(mg)
SMM0102
OMM0102 2.2 + 0 / - 0.15 1.1 + 0 / - 0.1 1.2 D + 0 / - 0.1 0.4 ± 0.05 7
RECOMMENDED SOLDER PAD DIMENSIONS
TYPE / SIZE
WAVE SOLDERING REFLOW SOLDERING
G
(mm)
Y
(mm)
X
(mm)
Z
(mm)
G
(mm)
Y
(mm)
X
(mm)
Z
(mm)
SMM0102
OMM0102 0.7 1.2 1.5 3.1 1.1 0.8 1.3 2.7
L
1
K
D
1
D
L
GX
Y
Z
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Disclaimer
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RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of
typical requirements that are often placed on Vishay products in generic applications. Such statements are not binding
statements about the suitability of products for a particular application. It is the customer’s responsibility to validate that a
particular product with the properties described in the product specification is suitable for use in a particular application.
Parameters provided in datasheets and / or specifications may vary in different applications and performance may vary over
time. All operating parameters, including typical parameters, must be validated for each customer application by the customer’s
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including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
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