CMF Non-Magnetic
www.vishay.com
Vishay Dale
Metal Film Resistors, Non-Magnetic, Industrial, Precision
FEATURES
•
•
•
•
•
•
•
Small size - conformal coated
Flame retardant epoxy coating
Controlled temperature coefficient
Available
Excellent high frequency characteristics
Exceptionally low noise; typically 0.10 μV/V
Low voltage coefficient to ± 5 ppm/V
Utilizes non-magnetic brass or nickel silver end
caps (as appropriate for value and tolerance)
Available
• Tested using magnets to ensure parts are
non-magnetic
• Material categorization: For definitions of compliance
please see
www.vishay.com/doc?99912
Note
*
This datasheet provides information about parts that are RoHS-compliant and/or parts that are non-RoHS-compliant. For example, parts
with lead (Pb) terminations are not RoHS-compliant. Please see the information/tables in this datasheet for details.
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
MAXIMUM
WORKING
VOLTAGE
(1)
V
POWER
RATING
P
70 °C (2)
W
POWER
RATING
P
125 °C (2)
W
RESISTANCE
RANGE
10 to 2.5M
10 to 2.5M
10 to 2.5M
10 to 22M
10 to 2.5M
10 to 2.5M
10 to 5M
1 to 22.1M
0.5 to 50M
0.5 to 50M
0.1 to 50M
10 to 2.5M
10 to 2.5M
10 to 10M
1 to 10M
0.5 to 10M
0.5 to 10M
0.1 to 10M
10 to 2.5M
10 to 2.5M
10 to 10M
1 to 15M
0.5 to 22M
0.5 to 22M
0.1 to 22M
10 to 2.5M
10 to 2.5M
10 to 10M
1 to 15M
1 to 22M
5 to 5M
1 to 5M
5 to 10M
1 to 10M
TOLERANCE
±%
0.1, 0.25, 0.5, 1
0.1, 0.25, 0.5, 1, 2, 5
1, 2, 5
1, 2, 5
0.1, 0.25, 0.5, 1
0.1, 0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
1
2, 5
0.1, 0.25, 0.5, 1
0.1, 0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
1
2, 5
0.1, 0.25, 0.5, 1
0.1, 0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
1
2, 5
0.1, 0.25, 0.5, 1
0.1, 0.25, 0.5
1, 2, 5
1, 2, 5
1, 2, 5
2, 5
2, 5
2, 5
2, 5
TEMPERATURE
COEFFICIENT
± ppm/°C
25
50
100
150, 200
25
50
50
100
150
200
200
25
50
50
100
150
200
200
25
50
50
100
150
200
200
25
50
50
100
150, 200
100
150, 200
100
150, 200
CMF50..143
CMF-50-143
200
0.25
0.125
CMF55..143
CMF-55-143
250
0.5
0.25
CMF60..143
CMF-60-143
500
1
0.5
CMF65..143
CMF-65-143
500
1.5
1
CMF70..143
CMF-70-143
500
1.75
1.25
CMF07..143
CMF20..143
CMF-07-143
CMF-20-143
250
500
0.5
1
-
-
Notes
(1)
Continuous working voltage shall be
P
x
R
or maximum working voltage, whichever is less
(2)
See the load life shift due to power and derating table for a summary of the more common combinations of power rating, case size and
ambient operating temperature that prevail in various industrial and military resistor specifications. The “performance” table quantifies the
load life stability under these combinations.
Revision: 23-Apr-14
Document Number: 31091
1
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
CMF Non-Magnetic
www.vishay.com
Vishay Dale
GLOBAL PART NUMBER INFORMATION
New Global Part Numbering: CMF5510K000FKRE143 (preferred part numbering format)
C
GLOBAL
MODEL
(See
Standard
Electrical
Specifications
table)
M
F
5
5
1
0
K
0
0
0
F
K
R
E
1
4
3
RESISTANCE
VALUE
R
=
K
= k
M
= M
R10000
= 0.1
680K00
= 680 k
1M0000
= 1.0 M
TOLERANCE
CODE
B
= ± 0.1 %
C
= ± 0.25 %
D
= ± 0.5 %
F
=±1%
G
=±2%
J
=±5%
1002
TEMPERATURE
COEFFICIENT
(1)
E
= 25 ppm
H
= 50 ppm
K
= 100 ppm
L
= 150 ppm
N
= 200 ppm
PACKAGING
EK
= Lead (Pb)-free, bulk
EA
= Lead (Pb)-free, T/R (full)
EB
= Lead (Pb)-free, T/R (1000 pieces)
BF
= Tin/lead, bulk
RE
= Tin/lead, T/R (full)
R6
= Tin/lead, T/R (1000 pieces)
T-1
TEMP. COEFFICIENT
SPECIAL
143
= Non-magnetic
Historical Part Number Example: CMF-55-1431002FT-1 (will continue to be accepted)
CMF-55-143
HISTORICAL MODEL
F
TOLERANCE CODE
R36
PACKAGING
RESISTANCE VALUE
Notes
• For additional information on packaging, refer to the Through-Hole Resistor Packaging document (www.vishay.com/doc?31544).
(1)
Tolerance of ± 0.5 % (D), ± 0.25 % (C), and ± 0.1 % (B) are available only in 50 ppm and 25 ppm temperature coefficients.
DIMENSIONS
in inches (millimeters)
1.500 ± 0.125
(2)
(38.10 ±
3.18)
A
C
(Max.)
B
D
GLOBAL MODEL
CMF07..143
CMF20..143
CMF50..143
CMF55..143
CMF60..143
CMF65..143
CMF70..143
A
0.240 ± 0.020
(6.10 ± 0.51)
0.375 ± 0.040
(9.53 ± 1.02)
0.150 ± 0.020
(3.81 ± 0.51)
0.240 ± 0.020
(3)
(6.10 ± 0.51)
0.344 ± 0.031
(8.74 ± 0.79)
0.562 ± 0.031
(14.27 ± 0.79)
0.562 ± 0.031
(14.27 ± 0.79)
B
0.090 ± 0.008
(2.29 ± 0.20)
0.145 ± 0.015
(3.68 ± 0.38)
0.065 ± 0.015
(1.65 ± 0.38)
0.090 ± 0.008
(2.29 ± 0.20)
0.145 ± 0.015
(3.68 ± 0.38)
0.180 ± 0.015
(4.57 ± 0.38)
0.180 ± 0.015
(4.57 ± 0.38)
C
(Max.)
0.290 (7.37)
0.425 (10.80)
0.187 (4.75)
0.290 (7.37)
0.425 (10.80)
0.687 (17.45)
0.687 (17.45)
D
0.025 ± 0.002
(0.64 ± 0.05)
0.032 ± 0.002
(0.81 ± 0.05)
0.016 ± 0.002
(0.41 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.025 ± 0.002
(0.64 ± 0.05)
0.032 ± 0.002
(0.81 ± 0.05)
Notes
(2)
Lead length for product in bulk pack. For product supplied in tape and reel, the actual lead length would be based on the body size, tape
spacing and lead trim.
(3)
0.260" ± 0.020" (6.60 mm ± 0.51 mm) for values > 5 M
TECHNICAL SPECIFICATIONS
PARAMETER
Maximum Working Voltage
Insulation Voltage (1 Min)
Voltage Coefficient (Max.)
Dielectric Strength
Insulation Resistance
Operating Temp. Range
Terminal Strength (Pull Test)
Noise
Weight (Max.)
Revision: 23-Apr-14
UNIT CMF07..143 CMF20..143 CMF50..143 CMF55..143 CMF60..143 CMF65..143 CMF70..143
V
250
500
200
250
500
500
500
> 500
V
eff
ppm/V
± 5 (measured between 10 % and full rated voltage)
450
750
450
450
750
900
900
V
AC
10
11
°C
-55 to +175
lb
5
5
2
2
2
2
5
0.10 μV/V over a decade of frequency, with low and intermediate resistance values typically below 0.05 μV/V
dB
g
0.28
0.60
0.12
0.28
0.50
1.00
1.10
Document Number: 31091
2
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
CMF Non-Magnetic
www.vishay.com
Vishay Dale
HISTORICAL TC CODE
T-9
T-2
T-1
T-0
T-00
TEMPERATURE COEFFICIENT
25 ppm/°C
50 ppm/°C
100 ppm/°C
150 ppm/°C
200 ppm/°C
TEMPERATURE COEFFICIENT CODES
GLOBAL TC CODE
E
H
K
L
N
LOAD LIFE SHIFT DUE TO POWER AND DERATING (AT +70 °C AND AT +125 °C)
The power rating for the CMF parts is tied to the derating temperature, the heat rise of the parts, and the
R
for the load life performance.
When the tables/graphs below are used together they show that when the parts are run at their higher power ratings, the parts will run hotter,
which has the potential of causing the resistance of the parts to shift more over the life of the part.
LOAD LIFE SHIFT VS. POWER RATING
LOAD LIFE
MODEL
CMF50..143
CMF55..143, CMF07..143
CMF60..143, CMF20..143
CMF65..143
CMF70..143
MAXIMUM
R
(TYPICAL TEST LOTS)
± 0.15 %
1/20 W and 1/10 W
1/10 W and 1/8 W
1/8 W and 1/4 W
1/4 W and 1/2 W
1/4 W and 1/2 W
± 0.5 %
1/8 W
1/4 W
1/2 W
3/4 W
3/4 W
± 1.0 %
1/4 W
1/2 W
3/4 W and 1 W
1 W and 1-1/2 W
1 W and 1-3/4 W
± 0.15 %
1/20 W
1/10 W
1/8 W
1/4 W
1/4 W
± 0.5 %
1/10 W
1/8 W
1/4 W
1/2 W
1/2 W
± 1.0 %
1/8 W
1/4 W
1/2 W
3/4 W and 1 W
3/4 W and 1-1/4 W
POWER RATING AT +70 °C
POWER RATING AT +125 °C
CMF resistors have an operating temperature range of -55 °C to +175 °C.
They must be derated at high ambient temperatures according to the derating curve.
RATED POWER IN %
120
100
80
60
40
20
0
- 55 - 50 - 25
HEAT RISE (°C ABOVE AMBIENT)
120
100
80
60
40
20
0
0
F5
43
..1
0
CM
C
.
55
MF
M
,C
43
.1
7..
F0
14
3
F
CM
60
..1
,
43
CM
F
4
..1
20
3
3,
.14
65. ..143
F
CM F70
CM
0
25
50
DERATING
100
75
150 175 200
125
165
70
AMBIENT TEMPERATURE IN °C
0.125
0.25
0.375
0.5
0.625
0.75
0.875
1
1.125
APPLIED POWER IN W
THERMAL RESISTANCE
Example:
When a CMF55..143 part is run at 1/8 W in a 70 °C ambient environment, the resistor will generate enough heat that the surface temperature
of the part will reach about 19 °C over the ambient temperature, and over the life of the part this could cause the resistance value to shift up
to ± 0.15 %.
If the same resistor was instead run at 1/4 W in a 70 °C environment, the element will heat up to about 30 °C over ambient, and over the life
of the part the resistance value could shift roughly ± 0.5 %.
And if the resistor was run at it maximum power rating of 1/2 W in a 70 °C environment, it will heat up to about 58 °C over ambient, and you
could see the resistance value shift roughly ± 1 % over the life of the part.
MATERIAL SPECIFICATIONS
Element
Core
Vacuum-deposited nickel-chrome alloy
Fire-cleaned high purity ceramic
Coating
Solderability
Flame retardant epoxy, formulated for superior
moisture protection
Continuous satisfactory coverage when tested
in accordance with MIL-R-10509
Revision: 23-Apr-14
Document Number: 31091
3
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
CMF Non-Magnetic
www.vishay.com
Vishay Dale
MARKING
- Model
- Value
- Decade and tolerance
- Date code
PERFORMANCE
TEST
(TEST METHODS - MIL-STD-202)
Short Time Overload
Low Temperature Operation
Moisture Resistance
Shock
Vibration
Temperature Cycling
Load Life
Dielectric Withstanding Voltage
Effect of Solder
AT +70 °C
± 0.05 %
± 0.05 %
± 0.05 %
± 0.01 %
± 0.04 %
± 0.15 %
± 0.01 %
± 0.03 %
AT +125 °C
MAXIMUM
R
(TYPICAL TEST LOTS)
± 0.05 %
± 0.05 %
± 0.05 %
± 0.01 %
± 0.04 %
± 0.15 %
± 0.01 %
± 0.03 %
Varies based on power rating used; see load life shift due to power and derating table
Revision: 23-Apr-14
Document Number: 31091
4
For technical questions, contact:
ff2aresistors@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT
www.vishay.com/doc?91000
Legal Disclaimer Notice
www.vishay.com
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
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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. Please
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Material Category Policy
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as RoHS-Compliant fulfill the
definitions and restrictions defined under Directive 2011/65/EU of The European Parliament and of the Council
of June 8, 2011 on the restriction of the use of certain hazardous substances in electrical and electronic equipment
(EEE) - recast, unless otherwise specified as non-compliant.
Please note that some Vishay documentation may still make reference to RoHS Directive 2002/95/EC. We confirm that
all the products identified as being compliant to Directive 2002/95/EC conform to Directive 2011/65/EU.
Vishay Intertechnology, Inc. hereby certifies that all its products that are identified as Halogen-Free follow Halogen-Free
requirements as per JEDEC JS709A standards. Please note that some Vishay documentation may still make reference
to the IEC 61249-2-21 definition. We confirm that all the products identified as being compliant to IEC 61249-2-21
conform to JEDEC JS709A standards.
Revision: 02-Oct-12
1
Document Number: 91000
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