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
•
•
•
•
Automotive
Telecommunication
Industrial
Medical equipment.
MMU 0102, MMA 0204 and MMB 0207 professional thin film
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, telecommunication and medical equipment
reflect the outstanding level of proven reliability.
METRIC SIZE
DIN:
CECC:
0102
RC 2211M
0204
RC 3715M
0207
RC 6123M
TECHNICAL SPECIFICATIONS
DESCRIPTION
CECC size
Resistance range
Resistance tolerance
Temperature coefficient
Operation mode
Climatic category (LCT/UCT/days)
Rated dissipation,
P
701)
Operating voltage,
U
max
AC/DC
Film temperature
3)
Max. resistance change at
P
70
for resistance range,
|ΔR/R| max., after:
1000 h
8000 h
225 000 h
Permissible voltage
against ambient (insulation):
1 minute;
U
ins
continuous
Failure rate
200 V
75 V
≤
2 x 10
-9
/h
300 V
75 V
≤
0.7 x 10
-9
/h
500 V
75 V
≤
0.7 x 10
-9
/h
standard
55/125/56
0.2 W
150 V
125 °C
155 °C
125 °C
MMU 0102
RC 2211M
0.22
Ω
to 2.21 MΩ
± 5 %; ± 2 %; ± 1 %; ± 0.5 %
MMA 0204
RC 3715M
0.22
Ω
to 10 MΩ
± 5 %; ± 1 %; ± 0.5 %
MMB 0207
RC 6123M
0.1
Ω
to 15 MΩ
± 5 %; ± 2 %; ± 1 %; ± 0.5 %
± 100 ppm/K; ± 50 ppm/K;
± 25 ppm/K
standard
power
55/125/56
55/155/56
0.4 W
1.0 W
2)
300 V
125 °C
155 °C
0.22
Ω
to 1 MΩ
≤
0.15 %
≤
0.3 %
≤
1%
≤
0.25 %
≤
0.5 %
-
± 50 ppm/K; ± 25 ppm/K
power
55/155/56
0.3 W
standard
55/125/56
0.25 W
200 V
155 °C
power
55/155/56
0.4 W
0.22
Ω
to 221 kΩ
≤
0.15 %
≤
0.3 %
≤
1%
≤
0.25 %
≤
0.5 %
-
0.22
Ω
to 332 kΩ
≤
0.15 %
≤
0.3 %
≤
1%
≤
0.25 %
≤
0.5 %
-
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.
Specified power rating requires dedicated heat-sink pads.
Film temperatures above the specified range may be permissible, e.g. 175 °C. Please contact the factory for details.
2)
3)
www.vishay.com
12
For technical questions contact:
ff3bresistors@vishay.com
Document Number: 28713
Revision: 18-Jul-06
MMU 0102, MMA 0204, MMB 0207 - Professional
Professional MELF Resistors
Vishay Beyschlag
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
RESISTANCE DECADE
0.1
Ω
to 0.999
Ω
1
Ω
to 9.99
Ω
10
Ω
to 99.9
Ω
100
Ω
to 999
Ω
1 kΩ to 9.99 kΩ
10 kΩ to 99.9 kΩ
100 kΩ to 999 kΩ
1 MΩ to 9.99 MΩ
10 MΩ to 99.9 MΩ
LAST DIGIT
7
8
9
1
2
3
4
5
6
12NC Example
The 12NC of a MMU 0102 resistor, value 47 kΩ and TC 50
with ± 1 % tolerance, supplied in blister tape of 3000 units per
reel is: 2312 165 14703.
12NC
- resistor type and packaging
DESCRIPTION
TYPE
TCR
TOL.
±5%
± 50 ppm/K
MMU 0102
± 25 ppm/K
jumper
TYPE
TCR
TOL.
±5%
± 50 ppm/K
MMA 0204
± 25 ppm/K
jumper
TYPE
TCR
± 100 ppm/K
TOL.
±5%
±5%
MMB 0207
± 50 ppm/K
±2%
±1%
± 25 ppm/K
jumper
± 0.5 %
±1%
± 0.5 %
±1%
± 0.5 %
±2%
±1%
± 0.5 %
±1%
± 0.5 %
ORDERING CODE 2312... .....
BLISTER TAPE ON REEL
BL
3000 UNITS
165 3....
165 2....
165 1....
165 5....
166 1....
166 5....
165 90001
BL
3000 UNITS
155 3....
155 1....
155 5....
156 1....
156 5....
155 90001
B2
2000 UNITS
195 3....
195 3....
195 2....
195 1....
196 5....
195 90001
B0
10 000 UNITS
175 3....
175 2....
175 1....
175 5....
176 1....
176 5....
175 90001
B0
10 000 UNITS
145 3....
145 1....
145 5....
146 1....
146 5....
145 90001
B7
7000 UNITS
185 3....
185 3....
185 2....
185 1....
186 5....
185 90001
BULK CASE
M8
8000 UNITS
060 3....
060 2....
060 1....
060 5....
061 1....
061 5....
060 90001
M3
3000 UNITS
040 3....
040 1....
040 5....
041 1....
041 5....
040 90001
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
Document Number: 28713
Revision: 18-Jul-06
For technical questions contact:
ff3bresistors@vishay.com
www.vishay.com
13
MMU 0102, MMA 0204, MMB 0207 - Professional
Vishay Beyschlag
Professional MELF Resistors
PART NUMBER AND PRODUCT DESCRIPTION
1)
PART NUMBER
2)
: MMB02070D5620DB200
PART NUMBER
2)
: MMB02070Z0000ZB200
M
M
M
M
B
B
0
0
2
2
0
0
7
7
0
0
D
Z
5
0
6
0
2
0
0
0
D
Z
B
B
2
2
0
0
0
0
MODEL/SIZE SPECIAL CHARACTER
0
= neutral, acc. CECC E0
MMU0102
MMA0204
MMB0207
TC
D
= ± 25 ppm/K
C
= ± 50 ppm/K
B
= ± 100 ppm/K
Z
= Jumper
VALUE
3 digit value
1 digit multiplier
Multiplier
7 = *10
-3
8 = *10
-2
9 = *10
-1
0 = *10
0
1 = *10
1
2 = *10
2
3 = *10
3
4 = *10
4
5 = *10
5
TOLERANCE
D
= ± 0.5 %
F
=±1%
G
=±2%
J
=±5%
Z
= Jumper
PACKAGING
3
SPECIAL
B3
up to 2 digits
B0
00 = standard
B2
B7
M3
M8
PRODUCT DESCRIPTION: MMB 0207 - 25 0.5 % B2 562R
PRODUCT DESCRIPTION: MMB 0207 B2 0R0
MMB
MMB
MODEL
MMU
MMA
MMB
0207
0207
SIZE
0102
0204
0207
- 25
-
TC
±
25
ppm/K
±
50
ppm/K
±
100
ppm/K
4)
0.5 %
-
TOLERANCE
±
0.5
%
±
1
%
±
2
%
±
5
%
B2
B2
PACKAGING
3)
BL
B0
B2
B7
M3
M8
562R
0R0
RESISTANCE VALUE
562R
= 562
Ω
4M64
= 4.64 MΩ
0R0
= Jumper
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.
4. A temperature coefficient 100 ppm/K is marked - 00.
PACKAGING
MODEL
BLISTER TAPE ON REEL
ACC. IEC 60286-3
DIAMETER
PIECES/REEL
180 mm/7"
330 mm/13"
180 mm/7"
330 mm/13"
180 mm/7"
330 mm/13"
3000
10 000
3000
10 000
2000
7000
BULK CASE
ACC. IEC 60286-6
CODE
PIECES/BULK CASE
8000
3000
-
M8
M3
-
CODE
B3 = BL
B0
B3 = BL
B0
B2
B7
MMU 0102
MMA 0204
MMB 0207
www.vishay.com
14
For technical questions contact:
ff3bresistors@vishay.com
Document Number: 28713
Revision: 18-Jul-06
MMU 0102, MMA 0204, MMB 0207 - Professional
Professional MELF Resistors
Vishay Beyschlag
DIMENSIONS
L
Color code marking
1)
D
D1
K
L1
DIMENSIONS
- MELF resistor types, mass and relevant physical dimensions
TYPE
MMU 0102
MMA 0204
MMB 0207
1)
L
(mm)
2.2 + 0/- 0.1
3.6 + 0/- 0.2
5.8 + 0/- 0.2
D
(mm)
1.1 + 0/- 0.1
1.4 + 0/- 0.1
2.2 + 0/- 0.2
L
1 min
(mm)
1.2
1.8
2.8
D
1
(mm)
D + 0/- 0.1
D + 0/- 0.15
D + 0/- 0.2
K
(mm)
0.4 ± 0.05
0.8 ± 0.1
1.25 ± 0.15
MASS
(mg)
7
19
79
Color code marking is applied according to IEC 60062* in four bands (E24 series) or five bands (E96 or E192 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 colour band for tolerance
is approximately 50 % wider than the other bands. An interrupted yellow band between the 4th and 5th full band indicates the temperature
coefficient of 25 ppm/K.
TEMPERATURE COEFFICIENT AND RESISTANCE RANGE
DESCRIPTION
TCR
± 100 ppm/K
TOLERANCE
±5%
±5%
±2%
± 50 ppm/K
±1%
± 0.5 %
±1%
± 25 ppm/K
± 0.5 %
Jumper
MMU 0102
-
0.22
Ω
to 0.91
Ω
1
Ω
to 9.1
Ω
10
Ω
to 2.21 MΩ
10
Ω
to 221 kΩ
10
Ω
to 221 kΩ
10
Ω
to 221 kΩ
≤
10 mΩ;
I
max
= 2 A
RESISTANCE VALUE
1)
MMA 0204
-
0.22
Ω
to 0.91
Ω
-
1
Ω
to 10 MΩ
10
Ω
to 2.21 MΩ
10
Ω
to 511 kΩ
10
Ω
to 511 kΩ
≤
10 mΩ,
I
max
= 3 A
MMB 0207
0.1
Ω
to 0.2
Ω
0.22
Ω
to 0.91
Ω
0.2
Ω
to 0.91
Ω
1
Ω
to 15 MΩ
-
-
10
Ω
to 1 MΩ
≤
10 mΩ;
I
max
= 5 A
Resistance ranges printed in bold are preferred TCR/tolerance combinations with optimized availability.
1)
Resistance values to be selected for ± 5 % and ± 2 % tolerance from E24, for ± 1 % tolerance from E24 and E96 and for ± 0.5 % tolerance
from E24 and E192.
Document Number: 28713
Revision: 18-Jul-06
For technical questions contact:
ff3bresistors@vishay.com
www.vishay.com
15
MMU 0102, MMA 0204, MMB 0207 - Professional
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 % Al
2
O
3
, for MICRO-MELF: 96 % Al
2
O
3
)
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. 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 colour 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 60286-3*
or bulk
case in accordance with
IEC 60286-6*.
Professional MELF Resistors
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
This product family of thin film MELF resistors is completed
by
Zero Ohm Jumpers.
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.
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
GADSL
1)
and the
CEFIC-
EECA-EICTA
2)
list of legal restrictions on hazardous
substances. This includes full compliance with the following
directives:
•
2000/53/ECEnd 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)
2)
Global Automotive Declarable Substance List, see www.gadsl.org
CEFIC (European Chemical Industry Council), EECA (European
C++ 属于面向对象的编程语言，OOP的思想不必多说，特别对于复杂的软件工程来说，利用OOP绝对是事半功倍，相对于传统的C来说； 当然用C来写单片机程序无可厚非，已经延续了一个传统，从大学时学的开始到工作岗位，好多人都是一直用C来做，但是既然Keil支持C++编译， 可以用C++来编写你的代码，可以利用高级语言来结构化，清晰化你的程序，为嘛不用呢！哈哈，个人看法！下面进入正题： C+...[详细]
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