CMF Industrial Vishay Dale 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 V/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 MODEL RESISTANCE RANGE VS - BEST AVAILABLE TOLERANCE/TEMPERATURE COEFFICIENT 2%, 5% 2%, 5% 1% 1% 1% T-0 T-1 T-2 T-0 T-1 LIMITING ELEMENT VOLTAGE MAX V 2%** CMF-50 200 V -- 10 - 1M CMF-55 250 V 0.1 - 0.49 CMF-07 250 V CMF-60 500 V CMF-20 500 V CMF-65 500 V CMF-70 500 V -- T-00 0.1% T-9 - 10 - 1M - 10 - 500k 10 - 500k 0.5 - 22.1M - 1 - 22.1M - 10 - 5M 10 - 2.5M -- - 1 - 5M - 5 - 5M -- -- 0.1 - 0.49 0.5 - 8M - 1 - 8M - 10 - 8M 10 - 2.5M -- - 1 - 8M - 5 - 8M -- -- 0.1 - 0.49 0.5 - 15M - 1 - 15M - 10 - 10M 10 - 2.5M 1 - 15M - 1 - 15M - 10 - 10M 10 - 2.5M **A 0.0005 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. COMMERCIAL POWER RATING (See Performance Table) @ + 125C @ + 70C WATTAGE 1/20 CMF-50 CMF-50 1/10 CMF-50, -55 CMF-50, -55 1/8 CMF-50, -55, -60 CMF-50, -55, -60, -20 1/4 CMF-55, -60, -65, -70, -07 CMF-55, -60, -65, -70, -20 1/2 CMF-55, -60, -65, -70, -20 CMF-60, -65, -70, -20 3/4 CMF-60, -65, -70, -20 CMF-65, -70 1 CMF-60, -65, -70, -20 -- 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 ORDERING INFORMATION CMF-55 MODEL CMF-50 CMF-70 CMF-55 CMF-07 CMF-60 CMF-20 CMF-65 3010 RESISTANCE* VALUE First three digits are significant. (Two for 2% and 5% tolerance.) Last digit specifies the number of zeros to follow. F TOLERANCE B = 0.1% C = 0.25% D = 0.5% F = 1% G= 2% J = 5% T-1 TEMPERATURE*** COEFFICIENT T-00 = 200ppm/C T-0 = 150ppm/C T-1 = 100ppm/C T-2 = 50ppm/C T-9 = 25ppm/C * 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. www.vishay.com 24 For Technical Questions, contact: ff2bresistors@vishay.com Document Number: 31018 Revision 11-Feb-03 CMF Industrial Vishay Dale Metal Film Resistors, Industrial DIMENSIONS in inches [millimeters] 1.500 0.125 [38.10 3.18] A C (Max.) B D * 1.08 0.125 [27.43 3.18] IF TAPE AND REEL MODEL A B C (Max.) D CMF-50 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] CMF-55 0.240 0.020*** [6.10 0.51] 0.090 0.008 [2.29 0.20] 0.278 [7.06]** 0.025 0.002 [0.64 0.05] CMF-60 0.344 0.031 [8.74 0.79] 0.145 0.015 [3.68 0.38] 0.425 [10.80] 0.025 0.002* [0.64 0.05] CMF-65 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] CMF-70 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] CMF-07 0.240 0.020 [6.10 0.51] 0.090 0.008 [2.29 0.20] 0.278 [7.06] 0.025 0.002 [0.64 0.05] CMF-20 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] * Available with .032" [.813mm] lead. ** .290" [7.37mm] for 0.25% and 0.1% resistance tolerances and values > 1M *** .260" .020" [6.60mm .508mm] for values > 5 M. TECHNICAL SPECIFICATIONS PARAMETER UNIT CMF-50 CMF-55 CMF-07 CMF-60 CMF-20 CMF-65 CMF-70 Maximum Working Voltage V 200 250 250 500 500 500 500 Insulation Voltage (1min) Veff Voltage Coefficient Max Dielectric Strength VAC >500 . 5ppm/Volt (measured between 10% and full rated voltage) 450 450 450 750 750 900 900 5 2 5 Insulation Resistance 1011 Operating Temperature Range C - 55 / + 175 Terminal Strength (pull test) lb 2 Noise dB 0.10 microvolts/Volt over a decade of frequency, with low and intermediate resistance 2 5 2 values typically below 0.5 microvolts/V Weight (max) Document Number: 31018 Revision 11-Feb-03 g 0.12 0.20 0.20 0.50 For Technical Questions, contact: ff2bresistors@vishay.com 0.60 1.00 1.10 www.vishay.com 25 CMF Industrial Vishay Dale Metal Film Resistors, Industrial 120 The increase in resistor surface temperature due to the rated load is shown below. Resistor surface temperature = heat rise plus ambient temperature. 100 HEAT RISE (C) RATED POWER IN % CMF resistors have an operating temperature range of - 55C to + 175C. They must be derated at high ambient temperatures according to the derating curve. 100 80 60 1W 80 1W 60 3/4 W 1/2 W 40 1/4 W 20 1/8 W 1/10 W 20 0 0 -55 -50 -25 DERATING 0 25 3/4 W 1/2 W 40 1/2 W 1/4 W 1/8 W 1/4 W CMF-55 CMF-60 CMF-65 CMF-07 CMF-20 CMF-70 50 70 75 100 125 150 165 175 200 AMBIENT TEMPERATURE IN C HEAT RISE 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 SPECIAL MODIFICATIONS MARKING 1. Terminals may be supplied in any commercial material with several type finishes. -- Value 2. Special pre-conditioning (power aging, temperature cycling, etc.) to customer specifications. 3. Non-helixed resistors can be supplied for critical high frequency applications. -- Decade and Tolerance -- Date code (Alternate parts may be MIL marked) 4. Fusible, flameproof versions available. www.vishay.com 26 For Technical Questions, contact: ff2bresistors@vishay.com Document Number: 31018 Revision 11-Feb-03 CMF Industrial Vishay Dale Metal Film Resistors, Industrial TEMPERATURE COEFFICIENT CODES TEMPERATURE COEFFICIENT CODE TEMPERATURE 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 PERFORMANCE POWER RATING @ + 70C MODEL @ + 125C 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 - - - MAXIMUM R (Typical Test Lots) TEST [Test methods - MIL-STD-202] 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% - 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% - Load Life Document Number: 31018 Revision 11-Feb-03 For Technical Questions, contact: ff2bresistors@vishay.com www.vishay.com 27