CMA02040X6802GB000 [VISHAY]
RESISTOR, CARBON FILM, 0.25 W, 2 %, 68000 ohm, SURFACE MOUNT, 1406, MELF, ROHS COMPLIANT;
| 型号： | CMA02040X6802GB000 |
| 厂家： | 
VISHAY |
| 描述： | RESISTOR, CARBON FILM, 0.25 W, 2 %, 68000 ohm, SURFACE MOUNT, 1406, MELF, ROHS COMPLIANT 电阻器 |
| 文件： | 总10页 (文件大小：157K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
CMA 0204
Vishay Beyschlag
High Pulse Load MELF Resistors
FEATURES
• Special carbon film technology
• Up to 4 kV single pulse capability
• Up to 70 W continuous pulse load
• ESD capability: 6 kV, human body model
• Compatible with lead (Pb)-free and lead
containing soldering processes
• Compliant to RoHS directive 2002/95/EC
APPLICATIONS
CMA 0204 specialty MELF resistors with advanced pulse
load capability are the perfect choice for the protection of
circuitry with signal or mains input lines from surge pulses.
The resistors are also suitable for circuits exposed to high
levels of electromagnetic interference or electrostatic
discharge. The applications are in all fields of automotive,
telecommunication, industrial and medical equipment.
• Automotive
• Telecommunication
• Industrial
• Medical equipment
METRIC SIZES
DIN
0204
CECC
RC 3715M
TECHNICAL SPECIFICATIONS
DESCRIPTION
CMA 0204
RC 3715M
Metric CECC size
Resistance range
10 Ω to 100 kΩ
2 ꢀ
Resistance tolerance
Temperature coefficient
Operation mode
See TCR graph
Standard
55/125/56
0.25 W
Power
55/155/56
0.4 W
Climatic category (LCT/UCT/days)
(1)
Rated dissipation, P70
Operating voltage, Umax. AC/DC
200 V
Film temperature (2)
125 °C
155 °C
Max. resistance change at P70 for resistance range, ΔR/R after:
10 Ω to 100 kΩ
1000 h
≤ 1 ꢀ
≤ 2 ꢀ
≤ 2 ꢀ
≤ 4 ꢀ
8000 h
Permissible voltage against ambient (insulation):
Failure rate: FITobserved
1 min; Uins
300 V
75 V
Continuous
≤ 0.1 x 10-9/h
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) 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
www.vishay.com
58
For technical questions, contact: melf@vishay.com
Document Number: 28717
Revision: 01-Mar-10
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
DIMENSIONS
L
K
L1
D
D1
DIMENSIONS AND MASS
L
D
(mm)
L1 min.
(mm)
D1
(mm)
K
(mm)
MASS
(mg)
TYPE
(mm)
CMA 0204
Note
3.6 + 0/- 0.2
1.4 + 0/- 0.1
1.8
D + 0/- 0.15
0.8 0.1
19
• Color code marking is applied according to IEC 60062 (3) in four bands (E24 series). 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 2nd and 3rd full band identifies the special carbon film.
PATTERN STYLES FOR MELF RESISTORS
X
G
Y
Z
RECOMMENDED SOLDER PAD DIMENSIONS
WAVE SOLDERING
REFLOW SOLDERING
TYPE
G
Y
X
Z
G
Y
X
Z
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
CMA 0204
Note
1.5
1.5
1.8
4.5
1.7
1.2
1.6
4.1
• 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.
Document Number: 28717
Revision: 01-Mar-10
For technical questions, contact: melf@vishay.com
www.vishay.com
59
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
PART NUMBER AND PRODUCT DESCRIPTION
Part Number: CMA02040X4701GB300
C
M
A
0
2
0
4
0
X
4
7
0
1
G
B
3
0
0
MODEL/SIZE SPECIAL CHARACTER
CMA0204 0 = Neutral
TCR
VALUE
TOLERANCE
PACKAGING
SPECIAL
X = No indication
3 digit value
G = 2 ꢀ
B3
B0
Up to 2 digits
00 = Standard
1 digit multiplier
Multiplier
9 = *10-1
0 = *100
1 = *101
2 = *102
3 = *103
Product Description: CMA 0204 2 % BL 4K7
CMA
0204
2 %
BL
4K7
MODEL
SIZE
TOLERANCE
PACKAGING
RESISTANCE VALUE
CMA
0204
2 ꢀ
BL
B0
100R = 100 Ω
4K7 = 4.7 kΩ
Note
• Products can be ordered using either the PART NUMBER or the PRODUCT DESCRIPTION.
PACKAGING
BLISTER TAPE ON REEL
ACC. IEC 60286-3
PIECES/REEL
3000
MODEL
DIAMETER
180 mm/7"
330 mm/13"
CODE
B3 = BL
B0
CMA 0204
10 000
www.vishay.com
60
For technical questions, contact: melf@vishay.com
Document Number: 28717
Revision: 01-Mar-10
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
DESCRIPTION
APPROVALS
Production of the CMA 0204 specialty MELF resistors with
advanced pulse load capability 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 (85 ꢀ Al2O3). Nickel
plated steel termination caps are firmly pressed on the
coated 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 resistors are
covered by 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
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 text 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.
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)
.
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.
(1)
All products comply with the GADSL
CEFIC-EECA-EICTA
and the
(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)
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.
Document Number: 28717
Revision: 01-Mar-10
For technical questions, contact: melf@vishay.com
www.vishay.com
61
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
FUNCTIONAL PERFORMANCE
1
CMA 0204
W
0.5
0
- 50
0
50
70
100
°C
150
Ambient Temperature
amb
Derating - Standard Operation
1
W
CMA 0204
0.5
0
- 50
0
50
70
100
°C
150
Ambient Temperature
amb
Derating - Standard Operation
CMA 0204
100
W
10
1
0.1
10 µs
100 µs
1 ms
10 ms
100 ms
1 s
10 s
Pulse Duration ti
Maximum pulse load, single pulse; applicable if P 0 and n ≤ 1000 and U ≤ Umax.
;
for permissible resistance change equivalent to 8000 h operation
Single Pulse
www.vishay.com
62
For technical questions, contact: melf@vishay.com
Document Number: 28717
Revision: 01-Mar-10
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
FUNCTIONAL PERFORMANCE
P
CMA 0204
100
W
10
1
0.1
10 µs
100 µs
1 ms
10 ms
100 ms
1 s
10 s
Pulse Duration ti
Maximum pulse load, continuous pulses; applicable if P ≤ P ( amb) and U ≤ Umax.
for permissible resistance change equivalent to 8000 h operation
;
Continuous Pulses
CMA 0204
1 kV
100 V
10 µs
100 µs
1 ms
10 ms
100 ms
1 s
10 s
Pulse Duration ti
Maximum pulse voltage, single and continuous pulses; applicable if P ≤ Pmax
;
for permissible resistance change equivalent to 8000 h operation
Pulse Voltage
1 kV
100 V
CMA 0204
10 V
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
Resistance Value R
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 %
1.2/50 Pulse
Document Number: 28717
Revision: 01-Mar-10
For technical questions, contact: melf@vishay.com
www.vishay.com
63
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
FUNCTIONAL PERFORMANCE
CMA 0204
1 kV
100 V
10 V
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
Resistance Value R
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 %
10/700 Pulse
CMA 0204
- 100
ppm/K
- 200
- 300
- 400
- 500
10 Ω
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
10 MΩ
Resistance Value R
Temperature coefficient of resistance
Temperature Coefficient (TCR) (Typical Curve)
CMA 0204
1
µV/V
0.1
0.01
100 Ω
1 kΩ
10 kΩ
100 kΩ
1 MΩ
Resistance Value R
In accordance with IEC 60 195
Current Noise - A1
www.vishay.com
64
For technical questions, contact: melf@vishay.com
Document Number: 28717
Revision: 01-Mar-10
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
TESTS AND REQUIREMENTS
Essentially all tests are carried out in accordance with the
following specifications:
upper category temperature; damp heat, long term, 56 days)
is valid.
EN 60115-1, generic specification
EN 140400, sectional specification
EN 140401-803, detail specification
Unless otherwise specified the following values apply:
Temperature: 15 °C to 35 °C
Relative humidity: 45 ꢀ to 75 ꢀ
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 (1)
and under standard atmospheric conditions in accordance
with IEC 60068-1, 5.3 (1). Climatic category LCT/UCT/56
(rated temperature range: Lower category temperature,
Air pressure: 86 kPa to 106 kPa (860 mbar to 1060 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
IEC
EN
60115-1
CLAUSE
60068-2 (1)
REQUIREMENTS
PROCEDURE
TEST
TEST
METHOD
PERMISSIBLE CHANGE (ΔR)
Stability for product types:
CMA 0204
10 Ω to 100 kΩ
2 ꢀ R
4.5
-
-
Resistance
-
At (20/- 55/20) °C
and (20/125/20) °C
4.8.4.2
Temperature coefficient
See Temperature Coefficient graph
U = P70 x R ≤ Umax.
;
1.5 h on; 0.5 h off;
Endurance at 70 °C:
standard operation mode
4.25.1
-
-
70 °C; 1000 h
70 °C; 8000 h
(1 ꢀ R + 0.05 Ω)
(2 ꢀ R + 0.05 Ω)
U = P70 x R ≤ Umax.
1.5 h on; 0.5 h off;
;
Endurance at 70 °C:
power operation mode
4.25.1
4.25.3
70 °C; 1000 h
70 °C; 8000 h
125 °C; 1000 h
155 °C; 1000 h
(2 ꢀ R + 0.05 Ω)
(4 ꢀ R + 0.05 Ω)
(2 ꢀ R + 0.05 Ω)
(4 ꢀ R + 0.05 Ω)
(1 ꢀ R + 0.1 Ω)
Endurance at upper category
temperature
-
4.24
78 (Cab)
Damp heat, steady state
Climatic sequence:
dry heat
(40 2) °C; 56 days; (93 3) ꢀ RH
4.23
4.23.2
4.23.3
4.23.4
4.23.5
4.23.6
4.23.7
2 (Ba)
30 (Db)
1 (Aa)
13 (M)
30 (Db)
-
UCT; 16 h
damp heat, cyclic
cold
55 °C; 24 h; ≥ 90 ꢀ RH; 1 cycle
LCT; 2 h
low air pressure
damp heat, cyclic
DC load
8.5 kPa; 2 h; (25 10) °C
55 °C; 24 h; ≥ 90 ꢀ RH; 5 cycles
U = P70 x R ≤ Umax.; 1 min
LCT = - 55 °C; UCT = 155 °C
- 55 °C; 2 h
(1 ꢀ R + 0.1 Ω)
-
1 (Aa)
Cold
(0.5 ꢀ R + 0.1 Ω)
30 min at - 55 °C;
30 min at + 125 °C; 5 cycles
4.19
14 (Na)
Rapid change of temperature
(0.5 ꢀ R + 0.1 Ω)
(0.25 ꢀ R + 0.1 Ω)
(0.25 ꢀ R + 0.1 Ω)
Short time overload;
standard operation mode
U = 2.5 x P70 x R ≤ 2 x Umax.; 5 s
4.13
4.40
-
-
Short time overload;
power operation mode
U = 2.5 x P70 x R ≤ 2 x Umax.; 5 s
IEC 61340-3-1 (1)
;
Electrostatic discharge
(human body model)
3 pos. + 3 neg. discharges
CMA 0204: 6 kV
(0.5 ꢀ R + 50 mΩ)
Document Number: 28717
Revision: 01-Mar-10
For technical questions, contact: melf@vishay.com
www.vishay.com
65
CMA 0204
High Pulse Load MELF Resistors
Vishay Beyschlag
TEST PROCEDURES AND REQUIREMENTS
IEC
EN
60115-1
CLAUSE
60068-2 (1)
REQUIREMENTS
PERMISSIBLE CHANGE (ΔR)
TEST
PROCEDURE
TEST
METHOD
Stability for product types:
CMA 0204
10 Ω to 100 kΩ
4.29
4.30
45 (XA)
45 (XA)
Component solvent resistance
Solvent resistance of marking
Isopropyl alcohol; 50 °C; method 2
No visible damage
Isopropyl alcohol; 50 °C; method 1,
toothbrush
Marking legible;
no visible damage
Solder bath method;
SnPb40;
Good tinning (≥ 95 ꢀ covered);
non-activated flux;
(215 3) °C; (3 0.3) s
no visible damage
4.17.2
58 (Td)
Solderability
Solder bath method;
SnAg3Cu0.5 or
Good tinning (≥ 95 ꢀ covered);
SnAg3.5; non-activated flux;
(235 3) °C; (2 0.2) s
no visible damage
4.18.2
4.32
4.7
58 (Td)
21 (Ue3)
-
Resistance to soldering heat
Shear (adhesion)
Solder bath method ; (260 5)
45 N
°C; (10 1) s
(0.5 ꢀ R + 0.1 Ω)
No visible damage
Voltage proof
URMS = Uins; 60 s
No flashover or breakdown
IEC 60 695-11-5 (1), needle flame test;
10 s
4.35
-
Flammability
No burning after 30 s
Note
(1) The quoted IEC standards are also released as EN standards with the same number and identical contents.
Last Digit of 12NC Indicating Resistance Decade
HISTORICAL 12NC INFORMATION
RESISTANCE DECADE
10 Ω to 99.9 Ω
LAST DIGIT
• The resistors have a 12-digit numeric code starting with
2312.
9
1
2
3
4
100 Ω to 999 Ω
• The subsequent 4 digits indicate the resistor type,
specification and packaging; see the 12NC table.
1 kΩ to 9.99 kΩ
10 kΩ to 99.9 kΩ
100 kΩ to 999 kΩ
• The remaining 4 digits indicate the resistance value:
- The first 3 digits indicate the resistance value.
Historical 12NC Example
- The last digit indicates the resistance decade in
accordance with the 12NC Indicating Resistance Decade
table.
The 12NC of a CMA 0204 resistor, value 47 kΩ with 2 ꢀ
tolerance, supplied in blister tape of 3000 units per reel is:
2312 159 24703.
HISTORICAL 12NC - Resistor type and packaging
ORDERING CODE 2312 ... .....
BLISTER TAPE ON REEL
B0
DESCRIPTION
BL
TYPE
TOL.
3000 UNITS
10 000 UNITS
CMA 0204
2 ꢀ
159 2....
149 2....
www.vishay.com
66
For technical questions, contact: melf@vishay.com
Document Number: 28717
Revision: 01-Mar-10
Legal Disclaimer Notice
Vishay
Disclaimer
ALL PRODUCT, PRODUCT SPECIFICATIONS AND DATA ARE SUBJECT TO CHANGE WITHOUT NOTICE TO IMPROVE
RELIABILITY, FUNCTION OR DESIGN OR OTHERWISE.
Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively,
“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
disclosure relating to any product.
Vishay makes no warranty, representation or guarantee regarding the suitability of the products for any particular purpose or
the continuing production of any product. To the maximum extent permitted by applicable law, Vishay disclaims (i) any and all
liability arising out of the application or use of any product, (ii) any and all liability, including without limitation special,
consequential or incidental damages, and (iii) any and all implied warranties, including warranties of fitness for particular
purpose, non-infringement and merchantability.
Statements regarding the suitability of products for certain types of applications are based on Vishay’s knowledge of typical
requirements that are often placed on Vishay products in generic applications. Such statements are not binding statements
about the suitability of products for a particular application. It is the customer’s responsibility to validate that a particular
product with the properties described in the product specification is suitable for use in a particular application. Parameters
provided in datasheets and/or specifications may vary in different applications and performance may vary over time. All
operating parameters, including typical parameters, must be validated for each customer application by the customer’s
technical experts. Product specifications do not expand or otherwise modify Vishay’s terms and conditions of purchase,
including but not limited to the warranty expressed therein.
Except as expressly indicated in writing, Vishay products are not designed for use in medical, life-saving, or life-sustaining
applications or for any other application in which the failure of the Vishay product could result in personal injury or death.
Customers using or selling Vishay products not expressly indicated for use in such applications do so at their own risk and agree
to fully indemnify and hold Vishay and its distributors harmless from and against any and all claims, liabilities, expenses and
damages arising or resulting in connection with such use or sale, including attorneys fees, even if such claim alleges that Vishay
or its distributor was negligent regarding the design or manufacture of the part. Please contact authorized Vishay personnel to
obtain written terms and conditions regarding products designed for such applications.
No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by
any conduct of Vishay. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000
Revision: 11-Mar-11
www.vishay.com
1
相关型号：
CMA02040X6809GB300
RESISTOR, CARBON FILM, 0.25 W, 2 %, 68 ohm, SURFACE MOUNT, MELF, ROHS COMPLIANT
VISHAY
©2020 ICPDF网 联系我们和版权申明