CMF-605971BT-9 - Vishay Presicion Group

Document Number: 31018

Revision 11-Feb-03

www.vishay.com

CMF Industrial

Vishay Dale

For Technical Questions, contact: ff2bresistors@vishay.com

WATTAGE

1/20

1/10

1/8

1/4

1/2

3/4

Metal Film Resistors, Industrial

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 ± 5ppm/Volt

• Special tolerance and or TC matching available on request

Vishay Dale Model CMF is also available as Military Qualified Styles RN and RL. See appropriate catalog or web page for the MIL-SPEC

ratings/attributes. (Except for marking, the Industrial and Military versions are exactly the same. Depending upon stock, military marked parts

may be supplied as industrial rated parts.)

STANDARD ELECTRICAL SPECIFICATIONS

COMMERCIAL POWER RATING (See Performance Table)

RESISTANCE RANGE Ω

VS - BEST AVAILABLE TOLERANCE/TEMPERATURE COEFFICIENT

**A 0.0005Ω bridge error is allowed in resistance measurement. It has the greatest effect on values in this range and should be taken into

account when verifying tolerance and Temperature Coefficient.

Note: The above table summarizes 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 in ensuing pages qualifies the load life stability under these

combinations

@ + 70°C

CMF-50

CMF-50, -55

CMF-50, -55, -60

CMF-55, -60, -65, -70, -07

CMF-55, -60, -65, -70, -20

CMF-60, -65, -70, -20

@ + 125°C

CMF-50

CMF-50, -55

CMF-50, -55, -60, -20

CMF-55, -60, -65, -70, -20

CMF-60, -65, -70, -20

CMF-65, -70

—

± 0.1%

T-9

10 - 500k

10 - 2.5M

—

10 - 2.5M

—

10 - 2.5M

V쓖

200 V

250 V

500 V

± 2%**

T-00

—

0.1 - 0.49

—

0.1 - 0.49

—

0.1 - 0.49

—

± 1%

T-2

10 - 500k

10 - 5M

—

10 - 8M

—

10 - 10M

CMF-50 CMF-70

CMF-55 CMF-07

CMF-60 CMF-20

CMF-65

CMF-55

MODEL

T-00 = ± 200ppm/°C

T-0 = ± 150ppm/°C

T-1 = ± 100ppm/°C

T-2 = ± 50ppm/°C

T-9 = ± 25ppm/°C

T-1

TEMPERATURE***

COEFFICIENT

ORDERING INFORMATION

TOLERANCE

First three digits are significant.

(Two for ± 2% and ± 5% tolerance.)

Last digit specifies the number of

zeros to follow.

3010

RESISTANCE* VALUE

B= ± 0.1%

C= ± 0.25%

D= ± 0.5%

F= ± 1%

G= ± 2%

J= ± 5%

* Examples: R27 = 0.27 ohm, 49R9 = 49.9 ohm, 1000 = 100 ohm, 1001 = 1 kilohm, 1004 = 1 Megohm, R511 = 0.511 ohm.

*** Tolerances of ± 0.5% (D), ± 0.25% (C) and ± 0.1% (B) are available only in T-2 and T-9 temperature coefficients.

MODEL LIMITING ELEMENT

VOLTAGE

MAX ± 2%, 5%

T-0

–

1 - 5M

–

1 - 8M

–

± 1%

T-0

10 - 1M

0.5 - 22.1M

–

0.5 - 8M

–

0.5 - 15M

1 - 15M

± 2%, 5%

T-1

–

5 - 5M

–

5 - 8M

–

± 1%

T-1

10 - 1M

1 - 22.1M

–

1 - 8M

–

1 - 15M

CMF-50

CMF-55

CMF-07

CMF-60

CMF-20

CMF-65

CMF-70

www.vishay.com

CMF Industrial

Vishay Dale

Document Number: 31018

Revision 11-Feb-03 For Technical Questions, contact: ff2bresistors@vishay.com

DIMENSIONS in inches [millimeters]

* Available with .032" [.813mm] lead.

** .290" [7.37mm] for ±0.25% and ±0.1% resistance tolerances and values > 1MΩ

*** .260" ± .020" [6.60mm ± .508mm] for values > 5 MΩ.

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]

0.025 ± 0.002

[0.64 ± 0.05]

0.032 ± 0.002

[0.81 ± 0.05]

C (Max.)

0.187 [4.75]

0.278 [7.06]**

0.425 [10.80]

0.687 [17.45]

0.278 [7.06]

0.425 [10.80]

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]

0.090 ± 0.008

[2.29 ± 0.20]

0.145 ± 0.015

[3.68 ± 0.38]

0.150 ± 0.020

[3.81 ± 0.51]

0.240 ± 0.020***

[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]

0.240 ± 0.020

[6.10 ± 0.51]

0.375 ± 0.040

[9.53 ± 1.02]

MODEL

CMF-50

CMF-55

CMF-60

CMF-65

CMF-70

CMF-07

CMF-20

(Max.)

1.500 ± 0.125

[38.10 ± 3.18] A

Metal Film Resistors, Industrial

PARAMETER UNIT CMF-50 CMF-55 CMF-07 CMF-60 CMF-20 CMF-65 CMF-70

Maximum Working Voltage V쓖≤ 200 ≤ 250 ≤ 250 ≤ 500 ≤ 500 ≤ 500 ≤ 500

Insulation Voltage (1min) Veff >500

Voltage Coefficient Max .± 5ppm/Volt (measured between 10% and full rated voltage)

Dielectric Strength VAC 450 450 450 750 750 900 900

Insulation Resistance Ω ≥1011

Operating Temperature Range °C - 55 / + 175

Terminal Strength (pull test) lb 2 2 5 2 5 2 5

Noise dB 0.10 microvolts/Volt over a decade of frequency, with low and intermediate resistance

values typically below 0.5 microvolts/V

Weight (max) g 0.12 0.20 0.20 0.50 0.60 1.00 1.10

TECHNICAL SPECIFICATIONS

* 1.08 ± 0.125 [27.43 ± 3.18] IF TAPE AND REEL

Document Number: 31018

Revision 11-Feb-03

www.vishay.com

CMF Industrial

Vishay Dale

For Technical Questions, contact: ff2bresistors@vishay.com

MARKING

— Value

— Decade and Tolerance

— Date code

(Alternate parts may be MIL marked)

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.

Metal Film Resistors, Industrial

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.

The increase in resistor surface temperature due to the rated load

is shown below.

Resistor surface temperature = heat rise plus ambient

temperature.

1/4 W

1/2 W

3/4 W

1 W

1/8 W

1/4 W

1/2 W

3/4 W

1/8 W

1/10 W

1/4 W

1/2 W

CMF-55 CMF-60 CMF-65

CMF-07 CMF-20 CMF-70

HEAT RISE (°C)

HEAT RISE

-55 -50 -25 0 25 50 70 75 100 125 150 165 175 200

AMBIENT TEMPERATURE IN ˚C

DERATING

120

100

RATED POWER IN %

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

MATERIAL SPECIFICATIONS

100

1 W

www.vishay.com

CMF Industrial

Vishay Dale

Document Number: 31018

Revision 11-Feb-03 For Technical Questions, contact: ff2bresistors@vishay.com

PERFORMANCE

POWER RATING

@ + 70°C @ + 125°C

MODEL

CMF-50 1/10 Watt 1/8 Watt - 1/20 Watt 1/10 Watt 1/8 Watt

CMF-55 1/8 Watt 1/4 Watt 1/2 Watt 1/10 Watt 1/8 Watt 1/4 Watt

CMF-60 1/4 Watt 1/2 Watt 3/4 Watt & 1 Watt 1/8 Watt 1/4 Watt 1/2 Watt

CMF-65 1/2 Watt 3/4 Watt 1 Watt 1/4 Watt 1/2 Watt 3/4 Watt

CMF-70 1/2 Watt 3/4 Watt 1 Watt 1/4 Watt 1/2 Watt 3/4 Watt

CMF-07 – 1/4 Watt – – – –

CMF-20 – 1/2 Watt 1 Watt – – –

TEST [Test methods - MIL-STD-202] 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 – ± 0.004% – – ±0.04% –

Temperature Cycling – ± 0.15% – – ±0.15% –

Load Life ± 0.15% ± 0.5% ± 1.0% ± 0.15% ±0.5% ± 1.0%

Dielectric Withstanding Voltage – ± 0.01% – – ±0.01% –

Effect of Solder – ± 0.03% – – ±0.03% –

Metal Film Resistors, Industrial

TEMPERATURE COEFFICIENT TEMPERATURE

CODE COEFFICIENT

T-00 0 ± 200ppm/°C

T-0 0 ± 150ppm/°C

T-1 0 ± 100ppm/°C

T-2 0 ± 50ppm/°C

T-9 0 ± 25ppm/°C

TEMPERATURE COEFFICIENT CODES