Commercial Grade Vertical Mount Power Wirewound & Film Resistors CVW/CVF Series • Power ratings from 2W to 10W • Non-inductive winding available • Resistance range from 0.1Ω to 200KΩ • Vertical mounting configuration saves board space • Flameproof ceramic case with inorganic potting material Electrical Data IRC Type Power Rating at 70°C (W) Resistance Range* (Ohms) Tolerance (±%) Temperature Coefficient of Resistance (±ppm/°C) 5, 10 400 (<20Ω) 350 (≥20Ω) 5, 10 400 (<20Ω) 350 (≥20Ω) Wirewound Type (CVW) CVW - 2 2 0.1 - 27 CVW - 3 3 0.1 - 39 CVW - 5 5 0.1 - 47 CVW - 7 7 0.1 - 680 CVW - 10 10 0.1 - 910 CVF - 2 2 28 - 33K CVF - 3 3 40 - 56K CVF - 5 5 48 - 100K CVF - 7 7 681 - 200K CVF - 10 10 911 - 200K Film Type (CVF) * For resistance values outside these ranges, contact factory. Environmental Data Short-time overload CVF: ±5% + 0.05Ω; 10 x nominal power for 5 seconds CVW: ±5% + 0.05Ω; 10 x nominal power for 5 seconds Dielectric withstanding voltage 1000Vac Resistance to Soldering heat ±5% + 0.05Ω Operating temperature range -55°C to 275°C 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 CVW/CVF Series Issue March 2009 Sheet 1 of 3 Commercial Grade Vertical Mount Power Wirewound & Film Resistors Physical Data Radial Leaded Type - CVW/CVF Series d d P W W P 5±1 D L D 5±1 L 5±1 CVF CVW Dimensions (mm) IRC Type Wirewound Type W (±1) D (±1) L (±1) P (±1) d (±0.02) Film Type CVW - 2 CVF - 2 11.5 7.5 20.0 5 0.7 CVW - 3 CVF - 3 12.5 8.5 25.0 5 0.7 CVW - 5 CVF - 5 12.5 9.0 25.0 5 0.8 CVW - 7 CVF - 7 12.5 9.0 38.0 5 0.8 CVW - 10 CVF - 10 12.5 9.0 50.0 5 0.8 Power Derating Curve +275°C 100 Temperature Rise (°C) Percent Rated Load (%) +70°C +155°C Temperature Rise Chart 80 60 40 20 0 -55 0 50 100 150 200 250 300 Ambient Temperature (°C) 250 10W 7W 5W 3W 2W 200 150 100 50 0 20 40 60 80 100 Rated Load (%) 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 CVW/CVF Series Issue March 2009 Sheet 2 of 3 Commercial Grade Vertical Mount Power Wirewound & Film Resistors Ordering Data Specify type, resistance, tolerance, RoHS-Compliance and packaging. This example is for a ceramic vertical film, 2-watt, 1000Ω resistor. Sample Part No. CVF 2 1001 J LF TR IRC Type CVF - Ceramic Vertical Film CVW - Ceramic Vertical Wirewound Power Rating (See specs table) Resistance Value (EIA 4-digit code) (≥100Ω - First 3 significant digits plus 4th digit multiplier) Example: 100Ω = 1000, 1000Ω = 1001 (>100Ω - "R" is used to designate decimal) Example: 10Ω = 51R0, 0.25Ω = R250 Tolerance (EIA format) J = ±5% K = ±10% RoHS- compliance LF = RoHS compliant construction Packaging TR = Tape and reel only 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 CVW/CVF Series Issue March 2009 Sheet 3 of 3