Document Number 31097For technical questions contact ff2aresistorsvishaycom THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIF ID: 218585
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www.vishay.comVishay Dale Document Number: 31097For technical questions, contact: ff2aresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 Metal Film Resistors, Axial, Industrial, Pulse Withstanding Protective Special Vishay Dale design provides lightning withstand characteristics along with resistor functionalityProvides lightning surge absorption capabilitiesProtect against a variety of electrical hazards which can change or destroy sensitive electronic equipment including high energy voltage surges caused by power line anomalies (direct power crosses or inductively coupled effects) and other momentary over voltagesMaterial categorization: for definitions of compliance please see www.vishay.com/doc?99912 Noteï *This datasheet provides information about parts that areRoHS-compliant and / or parts that are non-RoHS-compliant. Forexample, parts with lead (Pb) terminations are not RoHS-compliant.Please see the information / tables in this datasheet for details.NotesContinuous working voltage shall be or maximum working voltage, whichever is less.Pulse withstanding cadependent, and are most effectNoteFor additional information on packaging, refer to the Through Hole Resistor Packaging document (www.vishay.com/doc?31544 MATERIAL SPECIFICATIONSElement Vacuum-deposited nickel-chrome alloyCore Fire-cleaned high purity ceramicCoating Flame retardant epoxy, with flameproof undercoat; formulated for higher power, with superior moisture and mechanical protectionSolderability actory coverage when tested in accordance with MIL-R-10509 Available Available STANDARD ELECTRICAL SPECIFICATIONSMODELRATING (1)25 °CPOWERRATING 70 °CRATING (1)125 °CWORKINGVOLTAGERESISTANCERANGE (2)TOLERANCETEMPERATURECOEFFICIENT ± ppm/°CCMF65..1472.51.751.255001 to 15M1, 2, 5100CMF70..147321.55001 to 15M1, 2, 5100 TECHNICAL SPECIFICATIONSPARAMETERUNITCMF65...147CMF70...147 Maximum Working Voltage V 500 Insulation Voltage (1 min) eff � 500 Voltage Coefficient (Max.) ppm/V and full rated voltage) Dielectric Strength V 900 Insulation Resistance 1011 Operating Temperature Range °C -55 to +175 Terminal Strength (Pull test) lb 5 Noise de of frequency, with low and intermediate resistance valuestypically below 0.5 V/V Weight (Max.) g 1.20 1.30 GLOBAL PART NUMBER INFORMATIONGlobal Part Numbering: CMF701K0000FKCP147 (preferred part numbering format)GLOBAL MODELRESISTANCE VALUETOLERANCE CODETEMP. COEFFICIENTPACKAGINGSPECIAL = 1.33 k = 1.0 M = lead (Pb)-free, bulk = lead (Pb)-free,(Dashnumber) = pulse withstanding = tin/lead, bulk x 701K00F CP1 C 0 4 7 www.vishay.comVishay Dale Document Number: 31097For technical questions, contact: ff2aresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 NoteLead length for product in bulk pack. For product supplied in tape and reel, the actual lead length would be based on body sizespacing, and lead trim. DIMENSIONS in inches (millimeters)GLOBAL MODELABC (Max.)DCMF65..1470.562 ± 0.031 (14.27 ± 0.79)0.215 ± 0.015 (5.46 ± 0.38)0.687 (17.45)0.025 ± 0.002 (0.64 ± 0.05)CMF70..1470.562 ± 0.031 (14.27 ± 0.79)0.230 ± 0.015 (5.84 ± 0.38)0.687 (17.45)0.032 ± 0.002 (0.81 ± 0.05) (Max.) DERATING AMBIENT TEMPERATURE IN °C 120RATED POWER IN % - 25 02575100125- 5517550200 70 THERMAL RESISTANCE APPLIED POWER IN W120HEAT RISE (ABOVE AMBIENT) IN °C 0.1250.2500.3750.7500.8751.00000.6251.125 0.500 PERFORMANCETEST(TEST METHODS -MIL-STD-202)AT +70 °CAT +125 °CMAXIMUM 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 ± 1.0 % ± 1.0 % Dielectric Withstanding Voltage ± 0.01 % ± 0.01 % Effect of Solder ± 0.03 % ± 0.03 % MARKING CMF65-147,CMF70-147:(5lines): DALE C70-147 Model (C65-147 = CMF65-147, C70-147 = CMF70-147) 24.3K 1% T1 Tolerance and TC (T1 = 100 ppm) 1309 4-digit date code www.vishay.comVishay Dale Document Number: 31097For technical questions, contact: ff2aresistors@vishay.com THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENTARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000 LIGHTNING PULSE WAVE FORMSLightning pulse wave forms are defined by three numbers:Maximum time to reach peak voltage level (typically 10 µs)Minimum time for voltage to decrease to half valueThe peak voltage levelThree examples are shown below.These graphs show the relationship value and pulse withstanding voltage for CMF-65-147 and CMF-70-147 using a 1.0 % resistance shift after 10 pulses as the figure of merit. The stable operating region of each package is on the right side of the appropriate line. Pulse withstanding capabilities are value dependent, anvalues greater than 200 VOLTS 200600100020060010002006001000 VOLTSRESISTANCE (150350500750900 CMF65-147, VOLTSRESISTANCE (100300500700900 CMF65-147, VOLTSRESISTANCE (100300500700900 CMF65-147, www.vishay.com Document Number: 91000 Disclaimer