CMF Industrial
www.vishay.com Vishay Dale
Revision: 16-Sep-16 1Document Number: 31018
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
Metal Film Resistors, Axial, Industrial, Precision
FEATURES
• Small size - conformal coated
• Flame retardant epoxy coating
• Controlled temperature coefficient
• Excellent high frequency characteristics
• Exceptionally low noise; typically 0.10 μV/V
• Low voltage coefficient to ± 5 ppm/V
• Special tolerance and or TC matching
available on request
• 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.
Vishay Dale Model CMF is also available as Military Qualified Styles RN and RL. See Vishay Dale’s CMF (Military RN and RL)
datasheet (www.vishay.com/doc?31027) for the MIL-SPEC ratings / attributes. (Except for marking, the Industrial and Military
versions are exactly the same).
Notes
(1) Continuous working voltage shall be 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.
Available
Available
STANDARD ELECTRICAL SPECIFICATIONS
GLOBAL
MODEL
HISTORICAL
MODEL
MAXIMUM
WORKING
VOLTAGE (1)
V
POWER
RATING
P70 °C (2)
W
POWER
RATING
P125 °C (2)
W
RESISTANCE
RANGE
TOLERANCE
± %
TEMPERATURE
COEFFICIENT
± ppm/°C
CMF50 CMF-50 200 0.25 0.125
10 to 2.5M 0.1, 0.25, 0.5, 1 25
10 to 2.5M 0.1, 0.25, 0.5, 1, 2, 5 50
10 to 2.5M 1, 2, 5 100
10 to 22M 1, 2, 5 150, 200
CMF55 CMF-55 250 0.5 0.25
10 to 2.5M 0.1, 0.25, 0.5, 1 25
10 to 2.5M 0.1, 0.25, 0.5 50
10 to 5M 1, 2, 5 50
1 to 22.1M 1, 2, 5 100
0.5 to 50M 1, 2, 5 150
0.5 to 50M 1 200
0.1 to 50M 2, 5 200
CMF60 CMF-60 500 1 0.5
10 to 2.5M 0.1, 0.25, 0.5, 1 25
10 to 2.5M 0.1, 0.25, 0.5 50
10 to 10M 1, 2, 5 50
1 to 10M 1, 2, 5 100
0.5 to 10M 1, 2, 5 150
0.5 to 10M 1 200
0.1 to 10M 2, 5 200
CMF65 CMF-65 500 1.5 1
10 to 2.5M 0.1, 0.25, 0.5, 1 25
10 to 2.5M 0.1, 0.25, 0.5 50
10 to 10M 1, 2, 5 50
1 to 15M 1, 2, 5 100
0.5 to 22M 1, 2, 5 150
0.5 to 22M 1 200
0.1 to 22M 2, 5 200
CMF70 CMF-70 500 1.75 1.25
10 to 2.5M 0.1, 0.25, 0.5, 1 25
10 to 2.5M 0.1, 0.25, 0.5 50
10 to 10M 1, 2, 5 50
1 to 15M 1, 2, 5 100
1 to 22M 1, 2, 5 150, 200
CMF07 CMF-07 250 0.5 - 5 to 5M 2, 5 100
1 to 5M 2, 5 150, 200
CMF20 CMF-20 500 1 - 5 to 10M 2, 5 100
1 to 10M 2, 5 150, 200
P x R
CMF Industrial
www.vishay.com Vishay Dale
Revision: 16-Sep-16 2Document Number: 31018
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
Notes
• For additional information on packaging, refer to the Through-Hole Resistor Packaging document (www.vishay.com/doc?31544).
(1) Tolerances of ± 0.5 % (D), ± 0.25 % (C) and ± 0.1 % (B) are available only in 50 ppm and 25 ppm temperature coefficients.
Notes
(1) 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.
(2) Available with 0.032" (0.813 mm) lead [CMF60..95]
(3) 0.260" ± 0.020" (6.60 mm ± 0.51 mm) for values > 5 M
GLOBAL PART NUMBER INFORMATION
DIMENSIONS in inches (millimeters)
GLOBAL MODEL A B C
(Max.) D
CMF50 0.150 ± 0.020
(3.81 ± 0.51)
0.065 ± 0.015
(1.65 ± 0.38) 0.187 (4.75) 0.016 ± 0.002
(0.41 ± 0.05)
CMF55 0.240 ± 0.020 (3)
(6.10 ± 0.51)
0.090 ± 0.008
(2.29 ± 0.20) 0.290 (7.37) 0.025 ± 0.002
(0.64 ± 0.05)
CMF60 0.344 ± 0.031
(8.74 ± 0.79)
0.145 ± 0.015
(3.68 ± 0.38) 0.425 (10.80) 0.025 ± 0.002 (2)
(0.64 ± 0.05)
CMF65 0.562 ± 0.031
(14.27 ± 0.79)
0.180 ± 0.015
(4.57 ± 0.38) 0.687 (17.45) 0.025 ± 0.002
(0.64 ± 0.05)
CMF70 0.562 ± 0.031
(14.27 ± 0.79)
0.180 ± 0.015
(4.57 ± 0.38) 0.687 (17.45) 0.032 ± 0.002
(0.81 ± 0.05)
CMF07 0.240 ± 0.020
(6.10 ± 0.51)
0.090 ± 0.008
(2.29 ± 0.20) 0.290 (7.37) 0.025 ± 0.002
(0.64 ± 0.05)
CMF20 0.375 ± 0.040
(9.53 ± 1.02)
0.145 ± 0.015
(3.68 ± 0.38) 0.425 (10.80) 0.032 ± 0.002
(0.81 ± 0.05)
TECHNICAL SPECIFICATIONS
PARAMETER UNIT CMF50 CMF55 CMF07 CMF60 CMF20 CMF65 CMF70
Maximum Working Voltage V200 250 250 500 500 500 500
Insulation Voltage (1 Min) Veff > 500
Voltage Coefficient (Max.) ppm/V ± 5 (measured between 10 % and full rated voltage)
Dielectric Strength VAC 450 450 450 750 750 900 900
Insulation Resistance 1011
Operating Temperature Range °C -55 to +175
Terminal Strength (Pull Test) lb 2 2 5 2 5 2 5
Noise dB 0.10 μV/V over a decade of frequency, with low and intermediate resistance values typically
below 0.05 μV/V
Weight (Max.) g 0.12 0.28 0.28 0.50 0.60 1.00 1.10
GLOBAL MODEL RESISTANCE VALUE TOLERANCE PACKAGING
CODE
(See Standard R = ΩB = ± 0.1 % E = 25 ppm EK = lead (Pb)-free, bulk
EA = lead (Pb)-free, T/R (full)
EB = lead (Pb)-free,
T/R (1000 pieces)
Electrical K = kΩC = ± 0.25 % H = 50 ppm
Specifications M = MΩD = ± 0.5 % K = 100 ppm
table) R10000 = 0.1 ΩF = ± 1 % L = 150 ppm
680K00 = 680 kΩG = ± 2 % N = 200 ppm
1M0000 = 1.0 MΩJ = ± 5 %
New Global Part Numbering: CMF55301R00FKRE (preferred part numbering format)
CMF55301R00FKRE
Historical Part Number example: CMF-553010FT-1 (will continue to be accepted)
63R1-TF010355-FMC
HISTORICAL MODEL RESISTANCE VALUE TOLERANCE CODE TEMP. COEFFICIENT PACKAGING
Blank = standard
(Dash number)
(Up to 3 digits)
From
1 to 999
as applicable
70 = color banded,
5 bands (≤ 1 %)
80 = color banded,
4 bands (≥ 2 %)
88 = hot solder dip
SPECIAL
TEMPERATURE
COEFFICIENT
(1)
BF = tin/lead, bulk
RE = tin/lead, T/R (full)
R6 = tin/lead, T/R (1000 pieces)
BD
C
(Max.)
1.500 ± 0.125 (1)
(38.10 ± 3.18) A
CMF Industrial
www.vishay.com Vishay Dale
Revision: 16-Sep-16 3Document Number: 31018
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
TEMPERATURE COEFFICIENT CODES
GLOBAL TC CODE HISTORICAL TC CODE TEMPERATURE COEFFICIENT
ET-9 25 ppm/°C
HT-2 50 ppm/°C
KT-1 100 ppm/°C
LT-0 150 ppm/°C
N T-00 200 ppm/°C
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 MAXIMUM R (TYPICAL TEST LOTS)
± 0.15 % ± 0.5 % ± 1.0 % ± 0.15 % ± 0.5 % ± 1.0 %
MODEL POWER RATING AT +70 °C POWER RATING AT +125 °C
CMF50 1/20 W and 1/10 W 1/8 W 1/4 W 1/20 W 1/10 W 1/8 W
CMF55, CMF07 1/10 W and 1/8 W 1/4 W 1/2 W 1/10 W 1/8 W 1/4 W
CMF60, CMF20 1/8 W and 1/4 W 1/2 W 3/4 W and 1 W 1/8 W 1/4 W 1/2 W
CMF65 1/4 W and 1/2 W 3/4 W 1 W and 1-1/2 W 1/4 W 1/2 W 3/4 W and 1 W
CMF70 1/4 W and 1/2 W 3/4 W 1 W and 1-3/4 W 1/4 W 1/2 W 3/4 W and 1-1/4 W
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.
Example:
When a CMF55 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 Vacuum-deposited nickel-chrome alloy Coating Flame retardant epoxy, formulated for superior
moisture protection
Core Fire-cleaned high purity ceramic Solderability Continuous satisfactory coverage when tested
in accordance with MIL-R-10509
AMBIENT TEMPERATURE IN °C
DERATING
120
100
80
60
40
20
0
% NI REWOP DETAR
- 55
- 50 - 25 025 70 75 100 125 150 165 175
50 200
APPLIED POWER IN W
THERMAL RESISTANCE
120
100
80
60
40
20
0
HEAT RISE (°C ABOVE AMBIENT)
0 0.125 0.25 0.375 0.5 0.75 0.875 11.1250.625
CMF50 CMF55,
CMF07
CMF60,
CMF20
CMF65,
CMF70
CMF Industrial
www.vishay.com Vishay Dale
Revision: 16-Sep-16 4Document Number: 31018
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
SPECIAL MODIFICATIONS
1. Terminals may be supplied in any commercial material with several type finishes.
2. Special pre-conditioning (power aging, temperature cycling, etc.) to customer specifications.
3. Non-helixed resistors can be supplied for critical high frequency applications.
4. Fusible, flameproof versions available.
Note
• CMF07 and CMF20 parts are marked with color bands, either per MIL-PRF-22684 (with a wide white band) or using commercial color bands.
CMFxx..70 and CMFxx..80 parts are marked using commercial color bands.
MARKING
Temperature coefficient: T00 = 200 ppm, T0 = 150 ppm, T1 = 100 ppm, T2 = 50 ppm, T9 = 25 ppm
CMF50: (3 lines) CMF55, CMF60, CMF65, CMF70: (4 lines)
3.01 Value CMF55 Style and size
K 1 % Ohm, K or M sign and Tolerance 49.9 kValue
1208 4-digit date code 1 % T2 Tolerance and TC
1208 4-digit date code
PERFORMANCE
TEST
(TEST METHODS - MIL-STD-202)
AT +70 °C AT +125 °C
MAXIMUM R (TYPICAL TEST LOTS)
Short Time Overload ± 0.05 % ± 0.05 %
Low Temperature Operation ± 0.05 % ± 0.05 %
Moisture Resistance ± 0.05 % ± 0.05 %
Shock ± 0.01 % ± 0.01 %
Vibration ± 0.04 % ± 0.04 %
Temperature Cycling ± 0.15 % ± 0.15 %
Load Life Varies based on power rating used; see load life shift due to power and derating table
Dielectric Withstanding Voltage ± 0.01 % ± 0.01 %
Effect of Solder ± 0.03 % ± 0.03 %
Legal Disclaimer Notice
www.vishay.com Vishay
Revision: 08-Feb-17 1Document Number: 91000
Disclaimer
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“Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained in any datasheet or in any other
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