CMB 0207
Vishay Beyschlag
High Pulse Load MELF Resistors
FEATURES
•
Approved to the safety requirements of
IEC 60065, 14.1.a* (= VDE 0860, 14.1.a)
VDE-REG.-Nr. B583
•
AEC-Q200 qualified
•
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
•
Compliant to RoHS directive 2002/95/EC
•
Find out more about Vishay’s Automotive Grade Product
requirements at:
www.vishay.com/applications
REG.-Nr. B583
CMB 0207 specialty 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.
APPLICATIONS
•
•
•
•
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 (1)
Operating voltage,
U
max.
AC/DC
Film temperature
(3)
Max. resistance change at
P
70
for resistance range,
ΔR/R
after:
1000 h
8000 h
225 000 h
Permissible voltage against ambient (insulation):
1 min;
U
ins
Continuous
Failure rate: FIT
observed
CMB 0207
RC 6123M
2.2
Ω
to 1.5 MΩ
± 5 %; ± 2 %; ± 1 %
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
750 V
75 V
≤
0.1 x 10
-9
/h
≤
1%
≤
2%
-
155 °C
Power
55/155/56
1.0 W
(2)
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.
** Please see document “Vishay Material Category Policy”:
www.vishay.com/doc?99902
Document Number: 28755
Revision: 01-Mar-10
For technical questions, contact:
melf@vishay.com
www.vishay.com
67
CMB 0207
Vishay Beyschlag
DIMENSIONS
High Pulse Load MELF Resistors
L
K
L
1
D
1
D
DIMENSIONS AND MASS
TYPE
CMB 0207
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
Note
• Color code marking is applied according to IEC 60062
(3)
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. An interrupted band between the 2
nd
and 3
rd
full band indicates the special carbon film type.
PATTERN STYLES FOR MELF RESISTORS
G
Y
Z
X
RECOMMENDED SOLDER PAD DIMENSIONS
WAVE SOLDERING
TYPE
G
(mm)
2.8
Y
(mm)
2.1
X
(mm)
2.6
Z
(mm)
7.0
G
(mm)
3.2
REFLOW SOLDERING
Y
(mm)
1.7
X
(mm)
2.4
Z
(mm)
6.6
CMB 0207
Note
• The given solder pad dimensions reflect the considerations for board design and assembly as outlined e.g. in standards IEC 61188-5-x, or in
publication IPC-7351. They do not guarantee any supposed thermal properties, however, they will be found adequate for most general
applications.
www.vishay.com
68
For technical questions, contact:
melf@vishay.com
Document Number: 28755
Revision: 01-Mar-10
CMB 0207
High Pulse Load MELF Resistors
Vishay Beyschlag
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: CMB02070X4701GB200
C
MODEL/SIZE
CMB0207
M
B
0
2
0
7
0
X
4
7
0
1
G
B
2
0
0
SPECIAL
Up to 2 digits
00
= Standard
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
J
=±5%
G
=±2%
F
=±1%
PACKAGING
B2
B7
Product Description: CMB 0207 2 % B2 4K7
CMB
MODEL
CMB
0207
SIZE
0207
2%
TOLERANCE
±
5
%
±
2
%
±
1
%
B2
PACKAGING
B2
B7
4K7
RESISTANCE VALUE
100R
= 100
Ω
4K7
= 4.7 kΩ
Note
• Products can be ordered using either the PART NUMBER or the PRODUCT DISCRIPTION.
PACKAGING
MODEL
DIAMETER
180 mm/7"
CMB 0207
330 mm/13"
7000
B7
BLISTER TAPE ON REEL
ACC. IEC 60286-3
PIECES/REEL
2000
CODE
B2
TOLERANCE AND RESISTANCE RANGE
DESCRIPTION
TOLERANCE
±5%
±2%
±1%
Note
(1)
Please select resistance values for ± 5 % and ± 2 % tolerance from the E24 series.
RESISTANCE VALUE
(1)
CMB 0207
2.2
Ω
to 15
Ω
16
Ω
to 1.5 MΩ
16
Ω
to 1 MΩ
Document Number: 28755
Revision: 01-Mar-10
For technical questions, contact:
melf@vishay.com
www.vishay.com
69
CMB 0207
Vishay Beyschlag
DESCRIPTION
Production of the CMB 0207 specialty 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
(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 Resistors
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.
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)
. The encapsulation is resistant to all
cleaning solvents commonly used in the electronics
industry, including alcohols, esters and aqueous solutions.
The suitablility of conformal coatings, if applied, shall be
qualified by appropiate means to ensure the long-term
stability of the whole system. The resistors are RoHS
compliant, the pure tin plating provides compatibility with
lead (Pb)-free and lead containing 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 use of Hazardous
Substances Directive (RoHS)
•
2002/96/EC Waste Electrical and Electronic Equipment
Directive (WEEE)
Solderability is specified for 2 years after production or
requalification. The permitted storage time is 20 years.
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/index.php?id=995
→
issues
→
environment policy
→
chemicals
→
chemicals for electronics.
(3)
The quoted IEC standards are also released as EN standards with the same number and identical contents.
www.vishay.com
70
For technical questions, contact:
melf@vishay.com
Document Number: 28755
Revision: 01-Mar-10
CMB 0207
High Pulse Load MELF Resistors
Vishay Beyschlag
FUNCTIONAL PERFORMANCE
Power Dissipation
P
1
Power Operation Mode
(1)
Standard Operation Mode
W
0.5
0
- 50
0
50
70
100
C
150
Note
(1)
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: 01-Mar-10
For technical questions, contact:
melf@vishay.com
www.vishay.com
71
微控制器 MCU
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
