F44KU6806G50BLK

High Voltage Thick Film Resistor F Series • • • • • • • Termination variants Wide resistance range Good resistance stability Working voltage up to 28KV Sets available with matched characteristics Good ratio matching over wide voltage range Series connection of resistors by screw terminals ������������������ ��������������������� ���������� ���������� �������������������� Electrical Data IRC Type Power Rating @ 20°C (watts) Resistance Range (ohms) Limiting Element Voltage (volts) In Air 2M to 100G 2M to 150G 4K 14K In Oil 8K 28K TCR (±ppm/°C) (values>1G: TCR is 250ppm/°C) Resistance Tolerance (%) (measured at 100 volts dc) Values (any value to special order) Thermal Impedance (°C/watt) Operating Temperature Range (°C) F43 F44 0.7 1.3 -2000 -2000 2, 5, 10 2, 5, 10 EIA 2% values preferred 44 33 -55 to 100 -55 to 100 CONSTRUCTION: The Cermatox® sintered oxide based resistive thick film is fired onto the surface of a high quality ceramic onto which turned brass end caps are pressed. A helical cut is made into the film to adjust its ohmic value and finally a sleeve is fitted to provide mechanical protection and electrical insulation. Resistors for use in oil or SF6 can be supplied with a lacquer protection instead of the sleeve. TERMINATIONS: Three styles of termination are available to permit resistors to be screwed together in a series chain, with the end members having axial wires for soldering. Wire Terminations: Styles D and KU. See illustration. Material: Solder-coated copper wire. Screw Terminations: Styles D and KU. See illustration. Material: Turned brass. Screw Thread: All caps are tapped UNF-10 x 4.2 deep. UNF10 is 32 TPI, 60° thread angle 4.72±0.07 mm outside diameter, 3.83 mm core diameter. Coupling Stud: All KU & TU resistors are supplied with 8 mm long screwed brass studs. MARKING: Type reference, resistance value, tolerance and data code are legend marked. SOLVENT RESISTANCE: The lacquer and protective sleeve provide excellent resistance to all normal industrial cleaning solvents suitable for printed circuits. General Note IRC reserves the right to make changes in product specification without notice or liability. All information is subject to IRC’s own data and is considered accurate at time of going to print. Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA Telephone: 361 992 7900 • Facsimile: 361 992 3377 • Website: www.irctt.com A subsidiary of TT electronics plc F Series Issue October 2008 Sheet 1 of 3 High Voltage Thick Film Resistor Environmental Data Typical Load @ Rated Power (1000 hrs @ 20°C) ∆R% 1 Shelf Life (12 months @ room temperature) ∆R% 0.5 Derating From Rated Power @ 20°C zero at 100°C Noise (µV/V in decade of frequency)