High Frequency MELF Resistors
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
Vishay Beyschlag
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28718
66 Revision: 18-Jul-06
FEATURES
Speciality product for RF applications
Low-inductance non-helical trimmed product
Suitable for more than 10 GHz
Force fitted steel caps, tin plated on nickel barrier
Pure Sn termination on Ni barrier layer
Compatible with lead (Pb)-free and lead containing
soldering processes
Lead (Pb)-free and RoHS compliant
APPLICATIONS
Telecommunication equipment
Industrial electronics.
METRIC SIZE
DIN: 0102 0204 0207
CECC: RC 2211M RC 3715M RC 6123M
MMU 0102 HF, MMA 0204 HF and MMB 0207 HF speciality
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.
Note: 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.
1) The power dissipation on the resistor generates a temperature rise against the local ambient, depending on the heatflow support of the
printed-circuit board (thermal resistance). The rated dissipation applies only if the permitted film temperature is not exceeded. Furthermore, a
high level of ambient temperature or of power dissipation may raise the temperature of the solder joint, hence special solder alloys or board
materials may be required to maintain the reliability of the assembly.
2) Specified power rating requires dedicated heat-sink pads.
TECHNICAL SPECIFICATIONS
DESCRIPTION MMU 0102 HF MMA 0204 HF MMB 0207 HF
Metric CECC size RC 2211M RC 3715M RC 6123M
Resistance range 6.8 Ωto 470 Ω1.5 Ωto 475 Ω6.8 Ωto 470 Ω
Resistance tolerance ± 2 % ± 1 % ± 2 %
Temperature coefficient ± 50 ppm/K
Operation mode standard power standard power standard power
Climatic category (LCT/UCT/days) 55/125/56 55/155/56 55/125/56 55/155/56 55/125/56 55/155/56
Rated dissipation, P701) 0.2 W 0.3 W 0.25 W 0.4 W 0.4 W 1.0 W2)
Operating voltage, Umax AC/DC limited by P70 limited by P70 limited by P70
Film temperature 125 °C 155 °C125°C 155 °C 125 °C155°C
Max. resistance change at P70 for
resistance range,
|ΔR/R| max., after:
6.8 Ωto 470 Ω1.5 Ωto 475 Ω6.8 Ωto 470 Ω
1000 h 0.25 % 0.5 % 0.25 % 0.5 % 0.25 % 0.5 %
8000 h 0.5 % 1.0 % 0.5 % 1.0 % 0.5 % 1.0 %
225 000 h 1.5 % - 1.5 % - 1.5 % -
Permissible voltage against ambient
(insulation):
1 minute; Uins 150 V 300 V 500 V
continuous 75 V 75 V 75 V
Failure rate 2.0 × 10-9/h 0.7 × 10-9/h 0.7 × 10-9/h
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
High Frequency MELF Resistors Vishay Beyschlag
Document Number: 28718 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 67
12NC INFORMATION
The resistors have a 12-digit numeric code starting with
2312.
The subsequent 4 digits indicate the resistor type,
specification and packaging; see the 12NC table.
The remaining 4 digits indicate the resistance value:
The first 3 digits indicate the resistance value.
The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance
Decade table.
Last Digit of 12NC Indicating Resistance Decade
12NC Example
The 12NC of a MMU 0102 HF resistor, value 50 Ω and
TCR 50 with ± 2 % tolerance, supplied in blister tape of
3000 units per reel is: 2312 168 0500 9.
RESISTANCE DECADE LAST DIGIT
1 Ωto 9.99 Ω8
10 Ωto 99.9 Ω9
100 Ωto 999 Ω1
Note
1. Products can be ordered using either the PRODUCT DESCRIPTION or the 12NC.
2. The PART NUMBER is shown to facilitate the introduction of a unified part numbering system. Currently, this PART NUMBER is applicable
in the Americas and in Asia/Pacific only.
3. Please refer to table PACKAGING, see below.
12NC - resistor type and packaging
DESCRIPTION ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL BULK CASE
TYPE TCR TOL. B1 B2 BL B7 B0 M3 M8
MMU 0102 HF ± 50 ppm/K ± 2 % 173 0.... - 168 0.... - 178 0.... - 063 0....
MMA 0204 HF ± 50 ppm/K ± 1 % 143 0.... - 158 0.... - 148 0.... 043 0.... -
MMB 0207 HF ± 50 ppm/K ± 2 % 183 0.... 198 0.... - 188 0.... - - -
PART NUMBER AND PRODUCT DESCRIPTION1)
PART NUMBER2): MMA0204AC5009FBL00
MODEL/SIZE SPECIAL CHARACTER TC VALUE TOLERANCE
PAC KAGIN G
3)
SPECIAL
MMU0102
MMA0204
MMB0207
A = High Frequency C = ± 50 ppm/K 3 digit value
1 digit multiplier
Multiplier
8 = *10-2
9 = *10-1
0 = *100
F = ± 1 %
G = ± 2 %
B1
B3
B0
B2
B7
M3
M8
up to 2 digits
00
= standard
PRODUCT DESCRIPTION: MMA 0204-50 1 % HF BL 50R
MMA 0204 - 50 1 % HF BL 50R
MODEL SIZE TCR TOLERANCE SUFFIX PA C K AG I N G 3) RESISTANCE VALUE
MMU
MMA
MMB
0102
0204
0207
± 50 ppm/K ± 1 %
± 2 %
HF = High Frequency B1
BL
B0
B2
B7
M3
M8
50R = 50 Ω
2A 0 0 4 A C 5 0 0 9 F B L 0 0M M
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
Vishay Beyschlag High Frequency MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28718
68 Revision: 18-Jul-06
DIMENSIONS
1) Color code marking is applied according to IEC 60062* in four bands (E24 series) or five bands (E96 series). Each colour 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
approx, 50 % wider than the other bands. An interrupted band between the 3rd and 4th full band identifies the special high frequency type.
1) Resistance value to be selected from E24 series for ± 2 % tolerance and from E96 series for ± 1 % tolerance, for other values please contact the
factory.
PACKAGING
MODEL
BLISTER TAPE ON REEL
ACC. IEC 60286 -3
BULK CASE
ACC. IEC 60286 -6
DIAMETER PIECES/REEL
CODE PIECES/BULK CASE
CODE
MMU 0102 HF
180 mm/7" 1000 B1
8000 M8180 mm/7" 3000 B3 = BL
330 mm/13" 10 000 B0
MMA 0204 HF
180 mm/7" 1000 B1
3000 M3180 mm/7" 3000 B3 = BL
330 mm/13" 10 000 B0
MMB 0207 HF
180 mm/7" 1000 B1
--180 mm/7" 2000 B2
330 mm/13" 7000 B7
DIMENSIONS
-
MELF resistor types, mass and relevant physical dimensions
TYPE L
(mm)
D
(mm)
L1 min
(mm)
D1
(mm)
K
(mm)
MASS
(mg)
MMU 0102 HF 2.2 + 0/- 0.1 1.1 + 0/- 0.1 1.2 D + 0/- 0.1 0.4 ± 0.05 7
MMA 0204 HF 3.6 + 0/- 0.2 1.4 + 0/- 0.1 1.8 D + 0/- 0.15 0.8 ± 0.1 19
MMB 0207 HF 5.8 + 0/- 0.2 2.2 + 0/- 0.2 2.8 D + 0/- 0.2 1.25 ± 0.15 79
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
DESCRIPTION RESISTANCE VALUE1)
TCR TOLERANCE MMU 0102 HF MMA 0204 HF MMB 0207 HF
± 50 ppm/K
± 2 % 50 Ω,
6.8 Ω to 470 Ω -50 Ω,
6.8 Ω to 470 Ω
± 1 % - 50 Ω,
1.5 Ω to 475 Ω-
L
D
L1
K
D1
Color code marking
1)
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
High Frequency MELF Resistors Vishay Beyschlag
Document Number: 28718 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 69
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
(85 % Al2O3, for MICRO-MELF: 96 % Al2O3) ceramic body
and conditioned to achieve the desired temperature
coefficient. Nickel plated steel termination caps are firmly
pressed on the metallised rods. A special laser is used to
achieve the target value by smoothly cutting a non helical
pattern with a resulting low inductivity 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 tin on nickel plating. Four or five color code rings
designate the resistance value and tolerance in accordance
with IEC 60062*. Additional black dots near the 3rd colour
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* or bulk
case in accordance with IEC 60286-6*.
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*. Excellent solderability is proven, even after
extended storage in excess of 10 years. The encapsulation
is resistant to all cleaning solvents commonly used in the
electronics industry, including alcohols, esters and aqueous
solutions. The resistors are completely lead (Pb)-free, the
pure tin plating provides compatibility with lead (Pb)-free
soldering processes. The immunity of the plating against tin
whisker growth has been proven under extensive testing.
All products comply with the GADSL1) and the CEFIC-
EECA-EICTA2) 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)
2002/95/EC Restriction of the use of Hazardous
Substances Directive (RoHS)
2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
1) Global Automotive Declarable Substance List, see www.gadsl.org
2) 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 -> issues -> environment policy -> chemicals ->
chemicals for electronics
APPROVALS
Where applicable the resistors are tested in accordance with
EN 140401-803 (superseding CECC 40401-803) which
refers to EN 60115-1, EN 140400 and the variety of
enviromental test procedures of the IEC 60068* series.
Vishay BEYSCHLAG has achieved "Approval of
Manufacturer" in accordance with IEC QC 001002-3,
clause 2. The release certificate for “Technology Approval
Schedule” in accordance with CECC 240001 based on
IEC QC 001002-3, clause 6 is granted for the Vishay
BEYSCHLAG manufacturing process.
Note:
* The quoted IEC standards are also released as EN standards with
the same number and identical contents.
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
Vishay Beyschlag High Frequency MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28718
70 Revision: 18-Jul-06
FUNCTIONAL PERFORMANCE
C100 150
0
- 50 0 50
0.5
1
W
70
Ambient Temperature
amb
ϑ
Power Dissipation P
MMB 0207 HF
MMA 0204 HF
MMU 0102 HF
Derating - Standard Operation
C
100 150
0
- 50 0 50
0.5
1
W
70
Ambient Temperature
amb
ϑ
Power Dissipation P
MMB 0207 HF
1)
MMA 0204 HF
MMU 0102 HF
Derating - Power Operation
1)
Specified power rating requires dedicated heat sink pads
2.0
1.5
0.5
1.0
10.1
IZI/
R
10 GHz 20
Frequency f
470 Ω
220 Ω
100 Ω
50 Ω
27 Ω
6.8 Ω
RF - Behavior
IZI/R for MMU 0102 HF
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
High Frequency MELF Resistors Vishay Beyschlag
Document Number: 28718 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 71
2.0
1.5
0.5
1.0
10.1
IZI/
R
10 GHz 20
470 Ω
220 Ω
100 Ω
50 Ω
27 Ω
6.8 Ω
Frequency f
RF - Behavior
IZI/R for MMA 0204 HF
2.0
1.5
0.5
1.0
10.1
IZI/
R
10 GHz 20
430 Ω
150 Ω
100 Ω
27 Ω8.2 Ω50 Ω
Frequency f
RF - Behavior
IZI/R for MMB 0207 HF
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
Vishay Beyschlag High Frequency MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28718
72 Revision: 18-Jul-06
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
following specifications:
EN 60115-1, generic specification
EN 140400, sectional specification
EN 140401-803, detail specification
The Test Procedures and Requirements table contains the
applicable tests selected from the documents listed above.
The tests are carried out in accordance with IEC 60068* and
under standard atmospheric conditions in accordance with
IEC 60068-1, 5.3.* Climatic category LCT/UCT/56 (rated
temperature range: Lower Category Temperature, Upper
Category Temperature; damp heat, long term, 56 days) is
valid.
Unless otherwise specified the following values apply:
Temperature: 15 °C to 35 °C
Relative humidity: 45 % to 75 %
Air pressure: 86 kPa to 106 kPa (860 mbar to 1 060 mbar).
The components are mounted for testing on printed-circuit
boards in accordance with EN 140400, 2.3.3, unless
otherwise specified.
The requirements stated in the Test Procedures and
Requirements table are based on the required tests and
permitted limits of EN 140401-803.
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2*
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
stability for product types:
MMU 0102 HF 6.8 Ω to 470 Ω
MMA 0204 HF 1.5 Ω to 475 Ω
MMB 0207 HF 6.8 Ω to 470 Ω
4.5 - resistance MMU 0102 HF, MMB 0207 HF:
MMA 0204 HF:
± 2 % R
± 1 % R
4.8.4.2 - temperature coefficient
at 20/- 55/20 °C and 20/125/20 °C
± 50 ppm/K
4.25.1 - endurance at 70 °C:
standard operation mode
U= Umax;
1.5 h on; 0.5 h off;
70 °C; 1000 h; ± (0.25 % R + 0.05 Ω)
70 °C; 8000 h ± (0.5 % R + 0.05 Ω)
endurance at 70 °C:
power operation mode
U= Umax;
1.5 h on; 0.5 h off;
70 °C; 1000 h ± (0.5 % R + 0.05 Ω)
70 °C; 8000 h ± (1 % R + 0.05 Ω)
4.25.3 - endurance at upper category
temperature
125 °C; 1000 h ± (0.5 % R + 0.05 Ω)
155 °C; 1000 h ± (1 % R + 0.05 Ω)
4.24 78 (Cab) damp heat, steady state (40 ± 2) °C; 56 days; (93 ± 3) % RH ± (0.5 % R + 0.05 Ω)
4.23 climatic sequence:
4.23.2 2 (Ba) dry heat UCT; 16 h
4.23.3 30 (Db) damp heat, cyclic 55 °C; 24 h; 90 % RH; 1 cycle
4.23.4 1 (Aa) cold LCT; 2 h
4.23.5 13 (M) low air pressure 8.5 kPa; 2 h; (25 ± 10) °C
4.23.6 30 (Db) damp heat, cyclic 55 °C; 24 h; 90 % RH; 5 cycles
4.23.7 - d.c. load U= Umax; 1 min.
LCT = - 10 °C; UCT = 85 °C ± (0.5 % R + 0.05 Ω)
-1 (Aa)cold - 55 °C; 2 h ± (0.1 % R + 0.01 Ω)
4.19 14 (Na) rapid change of temperature 30 minutes at - 55 °C;
30 minutes at 155°C; 5 cycles ± (0.25 % R + 0.05 Ω)
P70 R×
P70 R×
P70 R×
MMU 0102 HF, MMA 0204 HF, MMB 0207 HF
High Frequency MELF Resistors Vishay Beyschlag
Document Number: 28718 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 73
Note:
* The quoted IEC standards are also released as EN standards with the same number and identical contents.
4.13 -
short time overload;
standard operation mode
U= 2.5 × 2×Umax;
5 s ± (0.1 % R + 0.01 Ω)
short time overload;
power operation mode
U= 2.5 × 2×Umax;
5 s ± (0.1 % R + 0.01 Ω)
4.40 - electrostatic discharge
(Human Body Model)
IEC 61340-3-1*;
3 pos. + 3 neg. discharges
MMU 0102 HF: 800 V
MMA 0204 HF: 1000 V
MMB 0207 HF: 2000 V
± (0.5 % R + 50 mΩ)
4.29 45 (XA) component solvent resistance isopropyl alcohol;
50 °C; method 2 no visible damage
4.30 45 (XA) solvent resistance of marking isopropyl alcohol; 50 °C;
method 1, toothbrush marking legible; no visible damage
4.17.2 58 (Td) solderability solder bath method; SnPb40;
non-activated flux;
(215 ± 3) °C; (3 ± 0.3) s
good tinning ( 95 % covered);
no visible damage
solder bath method; SnAg3Cu0.5 or
SnAg3.5; non-activated flux;
(235 ± 3) °C; (2 ± 0.2) s
good tinning ( 95 % covered);
no visible damage
4.18.2 58 (Td) resistance to soldering heat solder bath method;
(260 ± 5) °C; (10 ± 1) s ± (0.5 % R + 0.05 Ω)
4.32 21 (Ue3) shear (adhesion) 45 N no visible damage
4.35 - flammability
IEC 60 695-11-5*,
needle flame test; 10 s
no burning after 30 s
REVISION HISTORY
Compared to the prior revision of this datasheet, 26-Feb-04, the following changes have been applied:
• Introduction of a standardized part numbering system
• Additional emphasis on the clean balance of materials and on the compliance with various EU directives
• Introduction of a test and requirements for electrostatic discharge (ESD)
• No other change of technical contents
• No product change
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2*
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
stability for product types:
MMU 0102 HF 6.8 Ω to 470 Ω
MMA 0204 HF 1.5 Ω to 475 Ω
MMB 0207 HF 6.8 Ω to 470 Ω
P70 R×
P70 R×
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 02-Oct-12 1Document Number: 91000
Disclaimer
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Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
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requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
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