Precision MELF Resistors
MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
34 Revision: 18-Jul-06
FEATURES
•Approved according to EN 140401-803
•Advanced thin film technology
•Superior stability: Class 0.05
•Wide precision range: 10 Ω to 1 MΩ
•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
•Test and measuring equipment
•Industrial and medical electronics
METRIC SIZE
DIN: 0102 0204 0207
CECC: RC 2211M RC 3715M RC 6123M
MMU 0102, MMA 0204 and MMB 0207 precision thin film
melf resistors combine the proven reliability of the
professional products with an advanced level of precision
and stability. Therefore they are perfectly suited for
applications in the fields of test and measuring equipment
along with industrial and medical 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.
TECHNICAL SPECIFICATIONS
DESCRIPTION MMU 0102 MMA 0204 MMB 0207
Metric CECC size RC 2211 M RC 3715 M RC 6123 M
Resistance range 22 Ωto 332 kΩ10 Ωto 511 kΩ15 Ωto 1 MΩ
Resistance tolerance ± 0.5 %; ± 0.25 %; ± 0.1 % ± 0.25 %; ± 0.1 %
Temperature coefficient ± 25 ppm/K; ± 15 ppm/K
Operation mode precision standard precision standard precision standard
Climatic category
(LCT/UCT/days) 10/85/56 55/125/56 10/85/56 55/125/56 10/85/56 55/125/56
Rated dissipation, P701) 0.06 W 0.2 W 0.07 W 0.25 W 0.11 W 0.4 W
Operating voltage, Umax AC/DC 150 V 200 V 300 V
Film temperature 85 °C 125 °C85°C 125 °C85°C 125 °C
Max. resistance change at P70
for resistance range,
|ΔR/R| max., after:
22 Ωto 332 kΩ10 Ωto 511 kΩ15 Ωto 1 MΩ
1000 h ≤ 0.05 % ≤ 0.1 % ≤ 0.05 % ≤ 0.1 % ≤ 0.05 % ≤ 0.1 %
8000 h ≤ 0.1 % ≤ 0.2 % ≤ 0.1 % ≤ 0.2 % ≤ 0.1 % ≤ 0.2 %
225 000 h ≤ 0.3 % ≤ 0.6 % ≤ 0.3 % ≤ 0.6 % ≤ 0.3 % ≤ 0.6 %
Permissible voltage against
ambient (insulation):
1 minute, Uins 200 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, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 35
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 MMA 0204 resistor, value 47 kΩ and TC 25
with ± 0.1 % tolerance, supplied in blister tape of 3000 units
per reel is: 2312 156 74703.
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
RESISTANCE DECADE LAST DIGIT
10 Ωto 99.9 Ω9
100 Ω to 999 Ω1
1 kΩto 9.99 kΩ2
10 kΩto 99.9 kΩ3
100 kΩto 999 kΩ4
1 MΩto 9.99 MΩ5
12NC - resistor type and packaging
DESCRIPTION
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL BULK CASE
TYPE TCR TOL. B1
1000 units
BL
3000
units
B0
10 000 units
M8
8000 units
MMU 0102
± 25 ppm/K
± 0.25 % 171 6.... 166 6.... 176 6.... 061 6....
± 0.1 % 171 7.... 166 7.... 176 7.... 061 7....
± 15 ppm/K
± 0.5 % 172 5.... 167 5.... 177 5.... 062 5....
± 0.25 % 172 6.... 167 6.... 177 6.... 062 6....
± 0.1 % 172 7.... 167 7.... 177 7.... 062 7....
TYPE TCR TOL. B1
1000 units
BL
3000
units
B0
10 000 units
M3
3000 units
MMA 0204
± 25 ppm/K
± 0.25 % 141 6.... 156 6.... 146 6.... 041 6....
± 0.1 % 141 7.... 156 7.... 146 7.... 041 7....
± 15 ppm/K
± 0.5 % 142 5.... 157 5.... 147 5.... 042 5....
± 0.25 % 142 6.... 157 6.... 147 6.... 042 6....
± 0.1 % 142 7.... 157 7.... 147 7.... 042 7....
TYPE TCR TOL. B1
1000 units
B2
2000 units
B7
7000 units
MMB 0207
± 25 ppm/K
± 0.25 % 181 6.... 196 6.... 186 6....
± 0.1 % 181 7.... 196 7.... 186 7....
± 15 ppm/K ± 0.1 % 182 7.... 197 7.... 187 7....
MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag Precision MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
36 Revision: 18-Jul-06
Notes
1. Products can be ordered using either the PRODUCT DESCRIPTION or the 12NC.
2. The PART NUMBER is shown to facilitate the introduction of the 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.
PART NUMBER AND PRODUCT DESCRIPTION1)
PART NUMBER2): MMA02040D5620BBL00
MODEL/SIZE SPECIAL CHARACTER TC VALUE TOLERANCE
PACK AGI NG
3)
SPECIAL
MMU0102
MMA0204
MMB0207
0 = neutral, acc. CECC E0 E = ± 15 ppm/K
D = ± 25 ppm/K
3 digit value
1 digit multiplier
Multiplier
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
4 = *104
B = ± 0.1 %
C = ± 0.25 %
D = ± 0.5 %
B1
B3
B0
B2
B7
M3
M8
up to 2 digits
00 = standard
PRODUCT DESCRIPTION: MMA 0204-25 0.1 % BL 562R
MMA 0204 -25 0.1 % BL 562R
MODEL SIZE TCR TOLERANCE PACKAGING3) RESISTANCE VALUE
MMU
MMA
MMB
0102
0204
0207
± 15 ppm/K
± 25 ppm/K
± 0.1 %
± 0.25 %
± 0.5 %
B1
BL
B0
B2
B7
M3
M8
562R = 562 Ω
4K64 = 4.64 kΩ
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
180 mm/7" 1000 B1
8000 M8180 mm/7" 3000 B3 = BL
330 mm/13" 10 000 B0
MMA 0204
180 mm/7" 1000 B1
3000 M3180 mm/7" 3000 B3 = BL
330 mm/13" 10 000 B0
MMB 0207
180 mm/7" 1000 B1
--180 mm/7" 2000 B2
330 mm/13" 7000 B7
0BBL00240D56MMA0 20
MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 37
DIMENSIONS
1) Color code marking is applied according to IEC 60062* in five bands. 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 approx, 50 % wider than the other bands.
An interrupted band between the 4rd and 5th full band identifies the temperature coefficient.
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
1) Resistance values to be selected from E24 and E192 series, for other values please contact the factory.
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 2.2 + 0/- 0.1 1.1 + 0/- 0.1 1.2 D + 0/- 0.1 0.4 ± 0.05 7
MMA 0204 3.6 + 0/- 0.2 1.4 + 0/- 0.1 1.8 D + 0/- 0.15 0.8 ± 0.1 19
MMB 0207 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 MMA 0204 MMB 0207
± 25 ppm/K
± 0.25 % 47 Ω to 332 kΩ22 Ω to 511 kΩ15 Ω to 1 MΩ
± 0.1 % 100 Ω to 221 kΩ43 Ω to 511 kΩ33 Ω to 1 MΩ
± 15 ppm/K
± 0.5 % 22 Ω to 100 kΩ10 Ω to 332 kΩ-
± 0.25 % 47 Ω to 100 kΩ22 Ω to 332 kΩ-
± 0.1 % 100 Ω to 100 kΩ43 Ω to 332 kΩ33 Ω to 1 MΩ
L
D
L1
K
D1
Color code marking
1)
MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag Precision MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
38 Revision: 18-Jul-06
DESCRIPTION
Production is strictly controlled and follows an extensive set
of instructions established for reproducibility. A homo-
geneous 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 metallised rods. A special laser is used to
achieve the target value by smoothly cutting a helical groove
in the resistive layer without damaging the ceramics. A
further conditioning is applied in order to stabilise 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. Five color code rings designate the
resistance value and tolerance in accordance with
IEC 60062*.
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 60 286-3* 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
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. Approval of conformity
is indicated by the CECC logo on the package label.
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.
SPECIALS
On request, resistors are available with established reliability
in accordance with EN 140401-803 Version E. Please refer
to the special data sheet for information on failure rate level,
available resistance ranges and ordering codes.
Note:
* The quoted IEC standards are also released as EN standards with
the same number and identical contents.
MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 39
FUNCTIONAL PERFORMANCE
C
100 150
0
- 50 0 50
0.1
W
70
0.2
Power Dissipation
P
Ambient Temperature
amb
ϑ
MMA 0204
MMB 0207
MMU 0102
Derating - Precision Operation
Ambient Temperature
amb
ϑ
C
100 150
0
- 50 0 50
0.2
W
70
0.4
Power Dissipation
P
MMA 0204
MMB 0207
MMU 0102
Derating - Standard Operation
alue
R
Current Noise A
1
0.01
100 Ω
0.1
1
µV/V
Resistance V
Current Noise - A
1
In accordance with IEC 60195
1 kΩ10 kΩ100 kΩ1 MΩ10 MΩ
MMB 0207
MMU 0102
MMA 0204
MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag Precision MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
40 Revision: 18-Jul-06
TESTS AND REQUIREMENTS
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 components are approved in accordance with the
IECQ-CECC-system, where applicable. For the full test
schedule refer to the documents listed above. The testing
also covers most of the requirements specified by
EIA/IS-703 and JIS-C-5202.
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 Test Procedures and
Requirements table are based on the required tests and
permitted limits of EN 140401-803. However, some
additional tests and a number of improvements against those
minimum requirements have been included. The stated
requirements for long-term tests are typically fulfilled with a
statistical safety of at least + 5 s.
x
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2*
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
stability for product types: STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
MMU 0102
100
Ω
to 100 k
Ω
43
Ω
to 147 k
Ω
22
Ω
to 332 k
Ω
MMA 0204
100
Ω
to 100 k
Ω
43
Ω
to 221 k
Ω
10
Ω
to 511 k
Ω
MMB 0207
100
Ω
to 270 k
Ω
43
Ω
to 510 k
Ω
15
Ω
to 1 M
Ω
4.5 - resistance -
± 0.5 %
R
; ± 0.25 %
R
; ± 0.1 %
R
4.8.4.2 - temperature
coefficient at 20 / - 55 / 20 °C and
20 / 125 / 20 °C
± 25 ppm/K, ± 15 ppm/K
4.25.1 - endurance at
70 °C: precision
operation mode
U=
≤ Umax;
1.5 h on; 0.5 h off;
70 °C; 1000 h
± (0.05 %
R
+5 m
Ω
)
70 °C; 8000 h
± (0.1 %
R
+5 m
Ω
)
endurance at
70 °C: standard
operation mode
U=
≤ Umax;
1.5 h on; 0.5 h off;
70 °C; 1000 h
± (0.1 %
R
+5 m
Ω
)
70 °C; 8000 h
± (0.2 %
R
+5 m
Ω
)
4.25.3 - endurance at
upper category
85 °C; 1000 h
± (0.02 %
R
+5 m
Ω
) ± (0.05 %
R
+5 m
Ω
) ± (0.1 %
R
+5 m
Ω
)
125 °C; 1000 h
± (0.05 %
R
+5 m
Ω
) ± (0.1 %
R
+5 m
Ω
) ± (0.15 %
R
+5 m
Ω
)
4.24 78 (Cab) damp heat,
steady state
(40 ± 2) °C; 56 days;
(93 ± 3) % RH
± (0.05 %
R
+5 m
Ω
) ± (0.1 %
R
+5 m
Ω
)
4.39 67 (Cy) damp heat,
steady state,
accelerated
(85 ± 2) °C; (85 ± 5) % RH;
U= 0.1 ×
≤100 V;
1000 h
± (0.15 %
R
+5 m
Ω
) ± (0.25 %
R
+5 m
Ω
)
P70 R×
P70 R×
P70 R×
MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 41
4.23 climatic
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= ≤
U
max
; 1 min.
LCT = - 10 °C; UCT = 85 °C
± (0.05 %
R
+5 m
Ω
) ± (0.1 %
R
+5 m
Ω
)-
LCT = - 55 °C; UCT = 125 °C
--± (0.1 %
R
+5 m
Ω
)
- 1 (Aa) cold - 55 °C; 2 h
± (0.02 %
R
+5 m
Ω
)
4.19 14 (Na) rapid change of
temperature
30 minutes at LCT;
30 minutes at UCT;
LCT = - 10 °C; UCT = 85 °C
5cycles
± (0.01 %
R
+5 m
Ω
) ± (0.02 %
R
+5 m
Ω
)-
1000 cycles
± (0.1 %
R
+5 m
Ω
) ± (0.1 %
R
+5 m
Ω
)-
LCT = - 55 °C; UCT = 125 °C
5cycles
- - ± (0.025 %
R
+5m
Ω
)
1000 cycles
--± (0.2 %
R
+5 m
Ω
)
4.13 - short time over-
load; precision
operation mode
U= 2.5 ×
≤
2
×
U
max
;
5 s
± (0.01 %
R
+5 m
Ω
) ± (0.02 %
R
+5 m
Ω
)± (0.03 %
R
+5 m
Ω
)
short time over-
load; standard
operation mode
± (0.05 %
R
+5 m
Ω
)
4.27 - single pulse high
voltage overload;
standard
operation mode
severity no. 4:
U= 10 ×
≤ 2×Umax;
10 pulses 10 μs/700 μs
± (0.25 %
R
+5 m
Ω
)
1)
4.37 - periodic electric
overload;
standard
operation mode
U=
≤ 2×Umax;
0.1 s on; 2.5 s off;
1000 cycles
± (0.5 %
R
+5 m
Ω
)
1)
4.22 6 (Fc) vibration endurance by sweeping;
10 to 2000 Hz; no
resonance; amplitude
≤1.5 mm or ≤200 m/s2; 6 h
± (0.01 %
R
+5 m
Ω
) ± (0.02 %
R
+5 m
Ω
)± (0.03 %
R
+5 m
Ω
)
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2*
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
stability for product types: STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
MMU 0102
100
Ω
to 100 k
Ω
43
Ω
to 147 k
Ω
22
Ω
to 332 k
Ω
MMA 0204
100
Ω
to 100 k
Ω
43
Ω
to 221 k
Ω
10
Ω
to 511 k
Ω
MMB 0207
100
Ω
to 270 k
Ω
43
Ω
to 510 k
Ω
15
Ω
to 1 M
Ω
P70 R×
P70 R×
P70 R×
15 P70
×
R
×
MMU 0102, MMA 0204, MMB 0207 - Precision
Vishay Beyschlag Precision MELF Resistors
www.vishay.com For technical questions contact: ff3bresistors@vishay.com Document Number: 28714
42 Revision: 18-Jul-06
Notes
1. The pulse load stability of professional MELF resistors applies for precision resistors also. However, severe pulse loads are likely to
jeopardize precision stability requirements.
2. Wave soldering is not recommended.
3. Special requirements apply to MICRO-MELF, MMU 0102:
- R< 100 Ω: ± (0.15 % R + 10 mΩ)
- 100 Ω ≤
R
≤ 10 kΩ: ± 0.1 %
R
- R> 10 kΩ: ± 0.05 %
R
* The quoted IEC standards are also released as EN standards with the same number and identical contents.
4.40 - electrostatic
discharge
(Human Body
Model)
IEC 61340-3-1*;
3 pos. + 3 neg. discharges
MMU 0102: 1.5 kV
MMA 0204: 2 kV
MMB 0207: 4 kV
± (0.5 %
R
+ 50 m
Ω
)
1)
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
note 2 ± (0.05 %
R
+ 10 m
Ω
)
reflow method 2
(IR/forced gas convection);
(260 ± 5) °C; (10 ± 1) s
± (0.01 %
R
+5 m
Ω
) ± (0.025 %
R
+5 m
Ω
)
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
4.32 21 (Ue3) shear (adhesion) 45 N
no visible damage
4.33 21 (Ue1)substrate
bending
depth 2 mm, 3 times
no visible damage, no open circuit in bent position
± (0.02 %
R
+ 10 m
Ω
)
3)
± (0.05 %
R
+ 10 m
Ω
)
3)
4.7 - voltage proof Urms = Uins; 60 s
no flashover or breakdown
4.35 - flammability IEC 60 695-11-5*, needle
flame test; 10 s
no burning after 30 s
TEST PROCEDURES AND REQUIREMENTS
EN
60115-1
CLAUSE
IEC
60068-2*
TEST
METHOD
TEST PROCEDURE REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
stability for product types: STABILITY
CLASS 0.05
OR BETTER
STABILITY
CLASS 0.1
OR BETTER
STABILITY
CLASS 0.25
OR BETTER
MMU 0102
100
Ω
to 100 k
Ω
43
Ω
to 147 k
Ω
22
Ω
to 332 k
Ω
MMA 0204
100
Ω
to 100 k
Ω
43
Ω
to 221 k
Ω
10
Ω
to 511 k
Ω
MMB 0207
100
Ω
to 270 k
Ω
43
Ω
to 510 k
Ω
15
Ω
to 1 M
Ω
MMU 0102, MMA 0204, MMB 0207 - Precision
Precision MELF Resistors Vishay Beyschlag
Document Number: 28714 For technical questions contact: ff3bresistors@vishay.com www.vishay.com
Revision: 18-Jul-06 43
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.
• Revision of the current noise diagram based on new test results
• Introduction of a test and requirements for electrostatic discharge (ESD)
• No other change of technical contents
• No product change
Document Number: 91000 www.vishay.com
Revision: 18-Jul-08 1
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