W23-4702J

Vitreous Enamelled Wirewound Resistors W20 Series High stability and reliability High purity ceramic substrate High power dissipation for size Suitable for harsh environments Rugged all-welded construction Impervious lead free vitreous enamel coating Overload characteristics ideal for protection circuits Electrical Data Limiting Operating Power Rating Resistance TCR Thermal IRC Tolerance Element Temperature 25C Range (-55C to 200C) Impedance* Type (%) Voltage Range (watts) (ohms) (ppm/C) (C/watt) (volts) (C) Typical: <+75 1 - 10K 1 Maximum: +200 W21 3.0 0.5 - 10K 2 100 88 -55 to 350 0.1 - 10K 5 Typical: <+75 1 - 15K 1 Maximum: +200 W215 5.0 0.5 - 15K 2 160 58 -55 to 350 0.1 - 15K 5 Typical: <+75 1 - 20K 1 Maximum: +200 W22 7.0 0.5 - 20K 2 200 44 -55 to 350 0.1 - 20K 5 Typical: <+75 1 - 60K 1 Maximum: +200 W23 10.0 1 - 60K 2 500 29 -55 to 350 0.15 - 60K 5 Typical: <+75 1 - 100K 1 Maximum: +200 W24 14.0 1 - 100K 2 750 22 -55 to 350 0.2 - 100K 5 *See temperature rise graph General Note IRC reserves the right to make changes in product specication without notice or liability. All information is subject to IRCs own data and is considered accurate at time of going to print. A subsidiary of TT electronics plc 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 W20 Series Issue December 2008 Sheet 1 of 4Vitreous Enamelled Wirewound Resistors Physical Data D d dia. L f Dimensions (mm) and Weight (g) L D f d Wt. IRC Type max max min nom nom W21 12.7 5.6 22.75 0.8 1 W215 22.0 7.0 23.1 0.8 2 W22 22.2 8.0 23.1 0.8 2 W23 38.0 8.0 --- 0.8 3.5 W24 53.5 8.0 --- 0.8 5 CONSTRUCTION A high purity ceramic substrate is assembled with interference t end caps to which are welded the termination wires. The resistive element is wound on the substrate and welded to the caps the vitreous enamel protective coating is then applied. TERMINATIONS Material: Copper clad steel wire, nickel plated and solder-coated. Length: W23s and W24s are not supplied on tape. Minimum length is 30mm. MARKING The resistors are legend marked with type reference, resistance value and tolerance. SOLVENT RESISTANCE The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuits. 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 W20 Series Issue December 2008 Sheet 2 of 4