CMB 0207
Vishay Beyschlag
High Pulse Load MELF Resistor
FEATURES
•
Approved to the safety requirements of
REG.-Nr. B583
•
•
•
•
•
•
IEC 60065, 14.1.a* (= VDE 0860, 14.1.a)
VDE-REG.-Nr. B583
Special carbon film technology
Up to 10 kV or 17 kW single pulse capability
Up to tbf. continuous pulse load capability
ESD capability: 16 kV, Human Body Model
Compatible with lead (Pb)-free and lead containing
soldering processes
Lead (Pb)-free and RoHS compliant
APPLICATIONS
CMB 0207 speciality MELF resistors with advanced pulse
load capability are the perfect choice for the protection of
circuitry with signal and mains input lines from surge pulses.
The resistors are also suitable for circuits exposed to high
levels of electromagnetic interference or electro-static
discharge. The applications are in all fields of automotive,
telecommunication, industrial and medical equipment.
•
•
•
•
Automotive
Telecommunication
Industrial
Medical equipment
METRIC SIZE
DIN:
CECC:
0207
RC 6123M
TECHNICAL SPECIFICATIONS
DESCRIPTION
CECC size
Resistance range
Resistance tolerance
Temperature coefficient
Operation mode
Climatic category (LCT/UCT/days)
Rated dissipation,
P
70
Film
temperature
3)
1000 h
8000 h
225 000 h
Permissible voltage against ambient (insulation):
1 minute;
U
ins
continuous
Failure rate
750 V
75 V
≤
1
×
10
-9
/h
1)
CMB 0207
RC 6123M
2.2
Ω
to 1.5 MΩ
± 5 %; ± 2 %
see TCR graph
standard
55/125/56
0.4 W
500 V
125
°C
2.2
Ω
to 10 kΩ
≤
0.5 %
≤
1%
t.b.f
≤
1%
≤
2%
-
155
°C
power
55/155/56
1.0 W
Operating voltage,
U
max
AC/DC
Max. resistance change at
P
70
for resistance range,
|ΔR/R| after:
Notes
• 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.
3. Film temperatures above the specified range may be permissible, e.g. 175 °C. Please contact the factory for details.
Document Number: 28755
Revision: 31-Oct-06
For technical questions, contact: ff3bresistors@vishay.com
www.vishay.com
79
CMB 0207
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
High Pulse Load MELF Resistor
Last Digit of 12NC Indicating Resistance Decade
RESISTANCE DECADE
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
LAST DIGIT
8
9
1
2
3
4
5
12NC Example
The 12NC of a CMB 0207 resistor, value 47 kΩ with ± 2 %
tolerance, supplied in blister tape of 2000 units per reel is:
2312 199 24703.
12NC
- resistor type and packaging
DESCRIPTION
TYPE
CMB 0207
TOL.
±5%
±2%
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL
B2 2000 UNITS
B7 7000 UNITS
... 199 3....
... 189 3....
... 199 2....
... 189 2....
PART NUMBER AND PRODUCT DESCRIPTION
1)
PART NUMBER
2)
: CMB02070X4701GB200
C
MODEL/SIZE
CMB0207
M
B
0
2
0
7
0
X
4
7
0
1
G
B
2
0
0
SPECIAL CHARACTER
0
= neutral
TCR
X
= no indication
VALUE
3 digit value
1 digit multiplier
Multiplier
8 = *10
-2
9 = *10
-1
0 = *10
0
1 = *10
1
2 = *10
2
3 = *10
3
4 = *10
4
TOLERANCE
G
=±2%
J
=±5%
PACKAGING
3)
SPECIAL
B2
up to 2 digits
B7
00
= standard
PRODUCT DESCRIPTION
4)
: CMB 0207 2 % B2 4K7
CMB
MODEL
CMB
0207
SIZE
0207
2%
TOLERANCE
±
2
%
±
5
%
B2
PACKAGING
3)
B2
B7
4K7
RESISTANCE VALUE
100R
= 100
Ω
4K7
= 4.7 kΩ
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. For CMB 0207 the temperature coefficient is not identified in the PRODUCT DESCRIPTION.
www.vishay.com
80
For technical questions, contact: ff3bresistors@vishay.com
Document Number: 28755
Revision: 31-Oct-06
CMB 0207
High Pulse Load MELF Resistor
Vishay Beyschlag
PACKAGING
MODEL
DIAMETER
180 mm/7"
CMB0207
330 mm/13"
7000
B7
BLISTER TAPE ON REEL
ACC. IEC 60286-3
PIECES/REEL
2000
CODE
B2
DIMENSIONS
L
Color code marking
1)
D
D1
K
L1
DIMENSIONS
- MELF resistor types, mass and relevant physical dimensions
TYPE
L
(mm)
5.8 + 0/- 0.15
D
(mm)
2.2 + 0/- 0.2
L
1 min
(mm)
3.2
D
1
(mm)
D + 0/- 0.2
K
(mm)
1.15 ± 0.1
MASS
(mg)
79
CMB 0207
Note
1. Color code marking is applied according to IEC 60062* in four 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 approximately, 50 % wider than the
other bands. A brown interrupted band between the 2nd and 3rd full band indicates the special carbon film type.
TOLERANCE AND RESISTANCE RANGE
DESCRIPTION
TOLERANCE
±5%
RESISTANCE VALUE
2)
CMB 0207
2.2
Ω
to 15
Ω
16
Ω
to 1.5 MΩ
±2%
Note
2. Please select resistance values for ± 5 % and ± 2 % tolerance from the E24 series.
Document Number: 28755
Revision: 31-Oct-06
For technical questions, contact: ff3bresistors@vishay.com
www.vishay.com
81
CMB 0207
Vishay Beyschlag
DESCRIPTION
Production of the CMB 0207 speciality MELF resistor is
strictly controlled and follows an extensive set of instructions
established for reproducibility. A homogeneous and dense
carbon film is deposited on a high grade ceramic body
(96 % Al
2
O
3
). Nickel plated steel termination caps are firmly
pressed on the coated rods. Products with a resistance of
15
Ω
or lower are made without trimming, whereas a special
laser is used to achieve a target value of 16
Ω
or above
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 color code rings
designate the resistance value and tolerance in accordance
with
IEC 60 062
3)
.
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
3)
.
High Pulse Load MELF Resistor
APPROVALS
Where applicable the resistors are tested in accordance with
EN 140401-803
which refers to
EN 60115-1, EN 140400
and
the variety of environmental test procedures of the
IEC 60068
3)
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
3. 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
3)
. 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/EC End of Vehicle life Directive (ELV) and
Annex II (ELV II)
•
2002/95/EC Restriction of the
Substances Directive (RoHS)
use
of
Hazardous
•
2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
Notes
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
www.vishay.com
82
For technical questions, contact: ff3bresistors@vishay.com
Document Number: 28755
Revision: 31-Oct-06
CMB 0207
High Pulse Load MELF Resistor
Vishay Beyschlag
FUNCTIONAL PERFORMANCE
Power Dissipation
P
1
Power Operation Mode
1)
W
0.5
Standard Operation Mode
0
- 50
1)
0
50
70
100
C
150
Specified power rating requires dedicated heat sink pads
Ambient Temperature
ϑ
amb
Derating
Pulse Voltage
U
10K
V
1K
100
CMB 0207
10
1
10
100
1K
10K
100K
Ω
1M
Pulse load rating in accordance
with
IEC 60115-1, 4.27; 1.2 µs/50 µs;
5 pulses at 12 s intervals; for permissible resistance change 0.5
%
Resistance Value
R
1.2/50 Pulse
Pulse Voltage
U
10K
V
1K
100
CMB 0207
10
1
10
100
1K
10K
100K
Ω
1M
Pulse load rating in accordance
with
IEC 60115-1, 4.27; 10 µs/700 µs;
10 pulses at 1 minute intervals; for permissible resistance change 0.5
%
Resistance Value
R
10/700 Pulse
Document Number: 28755
Revision: 31-Oct-06
For technical questions, contact: ff3bresistors@vishay.com
www.vishay.com
83
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
