Commercial Grade Axial Lead Power Wirewound & Film Resistor CAW/CAF Series • • • • • Power ratings from 2W to 10W Non-inductive winding available Standard tolerance ±5% and ±10% Resistance range from 0.1Ω to 200KΩ Flameproof ceramic case with inorganic potting material Electrical Data IRC Type Power Rating at 25°C (W) Resistance Range* (Ohms) Tolerance (±%) Temperature Coefficient of Resistance (±ppm/°C) Wirewound Type (CAW) CAW-2 2 0.1 - 27 5, 10 CAW-3 3 0.1 - 39 5, 10 CAW-5 5 0.1 - 47 5, 10 CAW-7 7 0.1 - 680 5, 10 CAW-10 10 0.1 - 910 5, 10 CAW-15 15 1.0 - 1K 5, 10 CAW-20 20 2.0 - 1.2K 5, 10 CAW-25 25 2.0 - 1.2K 5, 10 CAW-2A 2 0.1 - 27 5, 10 CAW-5A 5 0.1 - 47 5, 10 CAW-7A 7 0.1 - 680 5, 10 CAW-10A 10 0.1 - 910 5, 10 CAF-2 2 28 - 33K 5, 10 CAF-3 3 40 - 56K 5, 10 CAF-5 5 48 - 100K 5, 10 CAF-7 7 681 - 200K 5, 10 CAF-10 10 911 - 200K 5, 10 CAF-15 15 1.1K - 200K 5, 10 CAF-20 20 1.3K - 200K 5, 10 CAF-2A 2 28 - 33K 5, 10 CAF-5A 5 48 - 100K 5, 10 CAF-7A 7 681 - 200K 5, 10 CAF-10A 10 911 - 200K 5, 10 400 (<20Ω) 350 (≥20Ω) Film Type (CAF) 400 (<20Ω) 350 (≥20Ω) 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 CAW/CAF Series Issue August 2008 Sheet 1 of 3 Commercial Grade Axial Lead Power Wirewound & Film Resistor Environmental Data Short-time overload ±5% + 0.05Ω; 2.5 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 Physical Data CAW-X / CAF-X Type CAW-XA / CAF-XA Type H W L H d D L H d Dimensions (mm) IRC Type(s) Wirewound Type Film Type W (±1) D (±1) L (±1) H (±5) d (±0.02) CAW-2 CAF-2 7.0 7.0 18.0 28.0 0.7 CAW-3 CAF-3 8.0 8.0 22.0 22.0 0.7 CAW-5 CAF-5 10.0 9.0 22.0 22.0 0.8 CAW-7 CAF-7 10.0 9.0 35.0 35.0 0.8 CAW-10 CAF-10 10.0 9.0 49.0 35.0 0.8 CAW-15 CAF-15 12.5 11.5 49.0 35.0 0.8 CAW-20 CAF-20 14.5 13.5 60.0 35.0 0.8 14.5 13.5 64.0 35.0 0.8 CAW-25 - CAW-2A CAF-2A 7.0 7.0 18.0 28.0 0.7 CAW-5A CAF-5A 10.0 9.0 22.0 35.0 0.8 CAW-7A CAF-7A 10.0 9.0 35.0 35.0 0.8 CAW-10A CAF-10A 10.0 9.0 49.0 35.0 0.8 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 CAW/CAF Series Issue August 2008 Sheet 2 of 3 Commercial Grade Axial Lead Power Wirewound & Film Resistor Heat Rise Chart Power Derating Curve +70°C +275°C +155°C 150 80 Heat rise (C) Percent rated load (%) 100 60 40 20 -55 120 10W 90 7W 5W 60 30 0 50 100 150 200 250 0 300 20 40 60 80 100 Rated load (%) Ambient Temperature (°C) Ordering Data Specify type, resistance, tolerance, RoHS-Compliance and packaging. This example is for a Ceramic Axial Film, 2-watt, 1000Ω resistor. Sample Part No. CAF 2 1001 J LF BLK IRC Type CAF - Ceramic Axial Film CAW - Ceramic Axial 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 = 10R0; 0.25Ω = R250 Tolerance (EIA format) J = ±5% K = ±10% RoHS - Compliance LF = RoHS compliant construction Packaging BLK = bulk packaging 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 CAW/CAF Series Issue August 2008 Sheet 3 of 3