CMF70352R00BEBF - Vishay Presicion Group

CMF Industrial

www.vishay.com Vishay Dale

Revision: 09-Sep-13 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, 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

STANDARD ELECTRICAL SPECIFICATIONS

GLOBAL

MODEL

HISTORICAL

MODEL

MAXIMUM

WORKING

VOLTAGE (1)

POWER

RATING

P70 °C (2)

POWER

RATING

P125 °C (2)

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 0.75

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 0.75

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: 09-Sep-13 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

(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) Available with 0.032" (0.813 mm) lead [CMF60..95]

(4) 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 (4)

(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 (3)

(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 V200  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)

(Max.)

1.500 ± 0.125 (2)

(38.10 ± 3.18) A

CMF Industrial

www.vishay.com Vishay Dale

Revision: 09-Sep-13 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 1/4 W 1/2 W 3/4 W

CMF70 1/4 W and 1/2 W 3/4 W 1 W 1/4 W 1/2 W 3/4 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

% NI REWOP DETAR

- 55

- 50 - 25 025 70 75 100 125 150 165 175

50 200

APPLIED POWER IN W

THERMAL RESISTANCE

120

100

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: 09-Sep-13 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 kValue

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: 02-Oct-12 1Document Number: 91000

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. 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.

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.