Surface Mount Power Standard pedestal mount Recessed-base mount RC Series: carbon composition (1/4 & 1/2 watt) RC Series: ceramic composition (above 1/2 watt) RF Series: metal film RW Series: wirewound RP Series: power film RM Series: high voltage thick film Flexible J-bend F e at u r e s • Tolerance 1%, 5%, 10%, depending on construction • Twelve wattage ratings • Seven package sizes • Two mounting designs to accommodate your soldering process • Five power resistor technologies to optimize your operating performance: 1.Carbon and Ceramic composition for surge and low inductance 2.Metal film for high ohmic value and low T.C. 3.Wire element for inrush current combined with low ohmic values. Resistance values as low as 0.005Ω 4.Power film for high ohmic value and high wattage 5.High Voltage thick film for high voltage applications • Flexible J-bend terminations •Working Temperature Range: -55°C to +150°C S ER I E S S P E C I F I C AT I O N S Part Number Power Maximum (watts)* voltage 1% tol. Resistance range Temp. Coefficient 5% tol. 10% tol. 0.1Ω–1Ω 1Ω–10Ω 10Ω+ RC0S2CA––––– 0.25 250 — RW0S6BB––––– 0.6 50 0.010Ω–1K 50 0.005Ω–1K RC0R5DB––––– RF0S8BA––––– 0.50 350 — — Quantity per reel ±400 ±400 1000V 16mm 1500 0.005Ω–1K ±90 ±50 ±20 1000V 12mm 2500 0.005Ω–1K ±90 2.2Ω–20M ±400 ±400 RP1S3CA––––– 1.25 350 RP1S5CB––––– RP1R5CB––––– 1.5 350 75 0.005Ω–1.5K 0.005Ω–1.5K ±90 ±250 ±250 1000V 16mm 1500 RW2S0CB––––– RW2R0CB––––– 2.0 100 0.005Ω–5K 0.005Ω–5K ±90 ±50 ±20 1000V 16mm 1000 RP2S0DA––––– RP2R0DA––––– 2.0 500 — — ±250 ±250 1000V 24mm 1000 RW2S0DA––––– RW2R0DA––––– 2.0 100 0.005Ω–5K ±90 ±50 ±20 1000V 24mm 1000 RP2R5DB––––– RW3R0DB––––– 2.5 500 — ±250 ±250 1000V 24mm 1000 RP3R0EA––––– 3.0 3.0 750 — ±250 ±250 1000V 32mm 750 — — ±50 RC1R0EA––––– RP1S5CA––––– RW3R5EA––––– RM0R7EA––––– *25°C ambient 32 1.0 1.5 3.5 0.75 500 — 1Ω–10M ±100 — ±200 ±100 — ±250 3.3-100K (10% tol only) — — 1Ω–1M 1Ω–1M 1Ω–1M 0.005Ω–5K 1Ω–1M — 200 0.005Ω–13K 0.005Ω–13K ±90 350 0.005Ω–25K 0.005Ω–25K ±90 2500 ±50 — 1KΩ–1000M 1Ω–1M 1KΩ–1000M ±250 ±50 ±50 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] ±20 -1300 ±250 ±250 ±20 ±20 1000V 1000V 1000V 1000V 1000V 1000V 1000V 1000V 1000V 12mm 12mm 16mm 32mm 16mm 16mm 24mm 32mm 32mm 1000 350 10Ω–1M ±100 24mm 1.0 RF1S0CA––––– — 1000V 200 1.0 — — 0.8 RW1S0BA––––– 1Ω–5M Tape Size 13” reels — — 2.2Ω–5.6M Dielectric Withstanding 2000 2000 1500 750 1500 1000 1000 750 750 (continued) Surface Mount Power p e r fo r m a nc e d a t a ALL models: Immersion (260°C for Momentary 10 sec.) Overload ±3.0%+.05Ω 6.3x rated power for 5 sec. ±0.1%+.05Ω 2x rated power for 0.1 sec. ±0.1%+.05Ω 5x rated power for 5 sec. ±0.5%+.05Ω 2x rated power for 0.1 sec. ±0.1%+.05Ω 5x rated power for 5 sec. Leaching (260°C Solder immersion, 60 sec.)....................... No visible leaching Thermal Shock (Units at -55°C, then rated power applied).. No mechanical damage Flammability ......................................................................... UL Material rating, UL94V0 TCR 300 Typical TCR for less than 0.1Ω SMD resistors (PPM/°C) Temperature °C 300 100 80 60 40 20 0 0 25 50 75 100 125 Ambient Temperature, ϒC Recommended Solder Profile 500 400 Derating Percent Rated Power Temp. cycle Load Life (-55°C to 125°C, (1000 hours Construction 1000 cycles) at 25°C) RC Carbon/Ceramic Comp. ±4.0%+.05Ω ±10.0%+.05Ω RF Metal Film ±0.5%+.05Ω ±0.5%+.05Ω RW Wirewound ±0.5%+.05Ω ±3.0%+.05Ω RP Power Film ±3.0%+.05Ω ±5.0%+.05Ω RN Wirewound, Non-inductive ±0.5%+.05Ω ±3.0%+.05Ω 200 10 sec. 200 Preheating Soldering: min. 220°C, max. 60 sec. 60 sec. Max. Temp.: 260°C ±5°, 10 sec. Cooling 120 sec. 150 100 50 0 100 Preheating: 145°C ±15°, max. 120 sec. Soldering 250 0 50 100 150 200 Time (sec.) 250 0.02 0.04 0.06 0.08 0.10 Ohms 200 Package limit hot spot temperature rise 180 Temperature rise, ϒC 160 140 Alumina FR4 The temperature rise graph data was obtained by a selection of test substrate size and trace width for each resistor size to limit operating temperatures to safe values. The operating temperature safe rises are either 100°C substrate temperature rise or 180°C package hot spot temperature rise at 25°C ambient. 120 100 80 FR4: 0.062 in. thick; 0.062 in. traces 60 40 Solder joint 20 100% 200% Percent Rated power 300% Alumina: 0.040 in. thick; 0.010 in. traces Molding material rated at 205°C continuous. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 33 150 Surface Mount Power d im e nsions (in./mm) M L B A N P J E Note 2 K =0.006 Ref. O Note 1 G H F =0.005 ±.001 D Packages A B BA (in.) 0.246±.020 0.136±.005 (mm) 6.248±.508 3.454±.127 CA (in.) 0.394±.020 0.159±.005 (mm) 10.008±.508 4.039±.127 CB (in.) 0.407±.020 0.226±.005 (mm) 10.338±.508 5.74±.127 DA (in.) 0.455±.020 0.240±.005 (mm) 11.557±.508 6.096±.127 DB (in.) 0.625±.020 0.273±.005 (mm) 15.875±.508 6.934±.127 EA (in.) 0.811±.020 0.273±.005 (mm) 20.599±.508 6.934±.127 BB (in.) 0.202±.010 0.10±.010 (mm) 5.140±.508 2.54±.127 I Recommended for glue dot application C Package Outline Dimensions C D G 0.133 REF 0.110±.010 0.047 ±0.020 3.378 REF 2.794±.254 1.194 ±0.508 0.156 REF 0.220±.010 0.062 Nom. 3.962 REF 5.588±.254 1.575 Nom. 0.222 REF 0.260±.010 0.062 Nom. 5.639 REF 6.604±.254 1.575 Nom. 0.236 REF 0.260±.010 0.062 Nom. 5.994 REF 6.604±.254 1.575 Nom. 0.268 REF 0.417±.010 0.062 Nom. 6.807 REF 10.592±.254 1.575 Nom. 0.268 REF 0.572±.010 0.093 Nom. 6.807 REF 14.529±.254 2.362 Nom. 0.095 REF 0.079±.010 0.050 Nom. 2.41 REF 2.00±.254 1.280 Nom. I 0.054±.012 1.372±.305 0.078±.012 1.981±.305 0.084±.012 2.134±.305 0.143±.012 3.632±.305 0.143±.012 3.632±.305 0.143±.012 3.632±.305 0.065±.012 1.640±.305 J 0.136±.005 3.454±.127 0.159±.005 4.038±.127 0.222±.005 5.639±.127 0.226±.005 5.740±.127 0.226±.005 5.740±.127 0.273±.005 6.934±.127 0.135±.005 3.420±.127 Note 1: Packages BA and CA are only available with a pedestal base. Packages CB and DA are available in either pedestal or recessed base. Packages DB and EA are only available in a recessed base. Note 2: Test point is .020 above PCB. Note 3: Tape and reel dimensions per EIA 481 A except “EA” size which is 12 mm component pitch versus 16mm pitch. L 0.150 3.81 0.256 6.50 0.276 7.01 0.317 8.05 0.474 12.040 0.611 15.52 0.078 1.98 PC Board Land Pattern M N O P 0.346 0.098 0.126 0.050 8.79 2.49 3.20 1.27 0.524 0.134 0.126 0.060 13.31 3.40 3.20 1.52 0.537 0.131 0.126 0.093 13.64 3.33 3.20 2.36 0.585 0.134 0.155 0.093 14.86 3.40 3.94 2.36 0.742 0.134 0.155 0.093 18.85 3.40 3.94 2.36 1.000 0.195 0.155 0.093 25.4 4.95 3.94 2.36 0.328 0.125 0.126 0.026 8.33 3.18 3.20 0.66 Land pattern dimensions are for reference only Reel Dimensions 0.795* 20.2 min. 0.059* 1.5 min. C 0.512 ±.008 13.0 ±.200 1.973 50 min. A B Full Radius Tape Start Slot 0.098 / 2.5 min. width 0.394 / 10 min. depth Measured at Hub Size A nom. B 12mm 13” 0.488" +0.078, –0.00 12.4mm +2.0, –0.0 16mm 13” 0.646" +0.078, –0.00 16.4mm +2.0, –0.0 24mm 13” 0.961" +0.078, –0.00 24.4mm +2.0, –0.0 32mm 13” 1.276" +0.078, –0.00 32.4mm +2.0, –0.0 C max. 0.724" 18.4mm 0.882" 22.4mm 1.196" 30.4mm 1.52" 38.4mm Quantity 2000 pcs. BA or 2500 pcs. BB 1500 pcs. CA or 1000 pcs. CB 1000 pcs. DA or DB 750 pcs. EA All reels are compatible with major pick-and-place machines and made in accordance with EIA 481 A (except EA size, which is 12mm component pitch versus 16mm pitch). (continued) 34 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] Surface Mount Power o r d e r in g info r m a t ion Component type R = resistor Package B = 12mm C = 16mm D = 24mm E = 32mm Type of Base S = standard R = recessed Package Modifier A, B sequential Tolerance F = 1% G = 2% H = 3% J = 5% K =10% �������������� Component Modifier Wattage C = carbon/ceramic Examples: composition 1S3 = 1.25W F = film 2S0 or 2R0 = 2.0W P = power film 3R5 = 3.5W W = wire N = wirewound, non-inductive T = Tape and Reel (optional) E = RoHS compliant Resistance Value Available Jan. 2006 R = Decimal Examples: K = 1,000 R249 = 0.249 ohms M = 1,000,000 24R9 = 24.9 ohms 2K49 = 2,490 ohms (For example, the part number shown is a wirewound resistor, 3.5 watt, recessed base, 32mm tape size, first case size [A], 1000 ohms 1% tolerance.) Standard Part Numbers for Surface Mount Power Resistors Wirewound Wirewound S S R S R R R S R Package style BA Base: standard or recessed S F F F F F F F F F F F F Ohmic value RC1R0EA––– RW0S6BB––– RW3R5EA––– RW3R0DB––– RW2R0DA––– RW2S0DA––– RW2R0CB––– RW2S0CB––– RW1S5CA––– RW1S0BA––– Ohmic value Suffix Tolerance suffix: F = 1% J = 5% K=10% –––R005– J J F/J –––R010– F/J J J F J J J –––R015– F/J J –––R020– J J F J J –––R025– J –––R027– J –––R030– F J J J –––R033– J –––R036– J –––R050– F/J J J F J J –––R056– J –––R075– J –––R080– J J –––R100– F/J J J F J J J –––R150– J J J –––R200– J J J –––R220– J –––R240– J J –––R300– J J –––R330– J –––R040– J –––R400– J –––R470– J J J –––R500– J J J J –––R750– J –––1R00– F/J J J J J –––2R00– CB DA DA DB EA BB EA S S R S R R R S R 3.30 4.70 5.00 5.60 6.80 7.50 10.00 15.00 20.00 22.00 24.90 33.00 36.00 47.00 50.00 51.00 68.00 82.00 100.00 120.00 180.00 300.00 470.00 1K 4.7K 5K Part No. Prefix Suffix Tolerance suffix: F = 1% J = 5% K=10% –––3R30– K –––4R70– K –––5R00– F –––5R60– J –––6R80– K –––7R50– J F –––10R0– J J J F K –––15R0– J J F K –––20R0– J –––22R0– F K –––24R9– F –––33R0– F K –––36R0– F –––47R0– J J F K –––50R0– J –––51R0– J –––68R0– K –––82R0– J –––100R– J F K –––120R– J –––180R– J –––300R– J –––470R– J –––1K00– J K –––4K70– J –––5K00– J 0.005 0.010 0.015 0.020 0.025 0.027 0.030 0.033 0.036 0.050 0.056 0.075 0.080 0.100 0.150 0.200 0.220 0.240 0.300 0.330 0.400 0.400 0.470 0.500 0.750 1.00 2.00 Prefix CB Wattage 1.0 1.5 2.0 2.0 2.0 2.0 3.0 3.5 0.6 1.0 Wattage 1.0 1.5 2.0 2.0 2.0 2.0 3.0 3.5 0.6 1.0 Part No. CA RC1R0EA––– EA RW0S6BB––– BB RW3R5EA––– EA RW3R0DB––– DB RW2R0DA––– DA RW2S0DA––– DA RW2R0CB––– CB RW2S0CB––– CB RW1S5CA––– CA RW1S0BA––– Package style BA Base: standard or recessed S 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 35