CVW/CVF Series Commercial Grade Vertical Mount Power Wirewound & Film Resistors IRC Wire and Film Technologies Division * Vertical mounting configuration saves board space * Power ratings from 2W to 10W * Resistance range from 0.1 to 200K * Flameproof ceramic case with inorganic potting material * Non-inductive winding available Specifications IRC Type Power Rating at 25C (W) Wirewound type (CVW) CVW-2 CVW-3 CVW-5 CVW-7 CVW-10 Film type (CVF) CVF-2 CVF-3 CVF-5 CVF-7 CVF-10 Resistance Range* (Ohms) Tolerance (%) 2 3 5 7 10 0.1 - 27 0.1 - 39 0.1 - 47 0.1 - 680 0.1 - 910 5, 10 5, 10 5, 10 5, 10 5, 10 2 3 5 7 10 28 - 33K 40 - 56K 48 - 100K 681 - 200K 911 - 200K 5, 10 5, 10 5, 10 5, 10 5, 10 Temperature Coefficient of Resistance (ppm/C) 400 (<20) 350 (20) 400 (<20) 350 (20) * For resistance values outside these ranges, contact factory Environmental Performance Short-time overload 5% +0.05; 2.5 x nominal power for 5 seconds Dielectric withstanding voltage 1000Vac Resistance to Soldering heat 5% +0.05 Operating temperature range -55C to 275C 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 printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CVW/CVF Series Issue February 2007 CVW/CVF Series Commercial Grade Vertical Mount Power Wirewound & Film Resistors IRC Wire and Film Technologies Division Dimensions (mm) Radial Leaded Type - CVW/CVF Series d P W 51 D IRC Type Wirewound Type Film Type CVW-2 CVW-3 CVW-5 CVW-7 CVW-10 CVF-2 CVF-3 CVF-5 CVF-7 CVF-10 L 51 W (1) D (1) L (1) P (1) d (0.02) 11.5 12.5 12.5 12.5 12.5 7.5 8.5 9.0 9.0 9.0 20.0 25.0 25.0 38.0 50.0 5 5 5 5 5 0.7 0.7 0.8 0.8 0.8 Performance Curves Ordering Data Specify type, resistance, tolerance, RoHS-Compliance and packaging. This example is for a ceramic vertical film 2-watt, 1000 resistor. Derating Curve +70C Percent rated load (%) 100 +155C +275C Sample Part No. J LF BLK IRC Type CVF - Ceramic Vertical Film CVW - Ceramic Vertical Wirewound 60 40 20 -55 Power rating (See specs table) 0 50 100 150 200 250 300 Ambient temperature (C) Temperature Rise Chart Temperature Rise (C) CVF 2 1001 80 250 10W 7W 5W 3W 2W 200 150 100 Tolerance (EIA format) J = 5% K = 10% RoHS- compliance LF = RoHS compliant construction 50 0 Resistance Value (EIA 4-digit code) (100 - First 3 significant digits plus 4th digit multiplier) Example: 100 = 1000; 1000 = 1001 (>100 - "R" is used to designate decimal) Example: 10 = 10R0; 0.25 = R250 20 40 60 80 100 Rated load (%) Packaging BLK = bulk packaging 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 printing. (c) IRC Wire and Film Technologies Division * 736 Greenway Road Boone, North Carolina 28607-1860 Telephone: 828 264 8861 * Facsimile: 828 264 8866 * Website: www.irctt.com A subsidiary of TT electronics plc CVW/CVF Series February 2007