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L12J47RE Datasheet(PDF) 1 Page - Ohmite Mfg. Co. |
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L12J47RE Datasheet(HTML) 1 Page - Ohmite Mfg. Co. |
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1 / 1 page 34 Ohmite Mfg. Co. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 270 Series Vitreous Enamel Power Dimensions (in. / mm) Core Standard Series Wattage Ohms L D C Code Voltage Terminal L12 12 0.1-51K 1.75 / 44.4 0.313 / 7.94 0.188 / 4.76 D 565 57 L25 25 0.15-100K 2.0 / 50.8 0.562 / 14.3 0.313 / 7.94 K 625 40 L50 50 0.38-260K 4.0 / 101.6 0.562 / 14.3 0.313 / 7.94 K 1625 40 L100 100 0.23-101K 6.5 / 165.1 0.750 / 19.1 0.50 / 12.7 M 2845 40 L175 175 0.13-101K 8.5 / 215.9 1.125 / 28.6 0.75 / 19.1 P 3595 46 L225 225 0.16-129K 10.5 / 266.7 1.125 / 28.6 0.75 / 19.1 P 4595 46 L500 500 0.38-218K 12.0 / 304.8 2.50 / 63.5 1.75 / 44.5 S 4970 45 L1000 1000 0.69-392K 20.0 / 508.0 2.50 / 63.5 1.75 / 44.5 S 8900 45 F E a T ur ES • Terminals suitable for soldering or bolt connection • High wattage applications • Rugged lead free vitreous enam- el coating • Flame resistant coating • All-welded construction • RoHS compliant available • “Fast on” option – see terminal 538, page 37 S PEC i F i C a T i O n S Material Coating: Lead free vitreous enamel. Very large models (750 watts and up) are supplied in Silicone Ceramic. Also available in low-cost Centohm coating; Consult factory. Core: Tubular ceramic. Terminals: Solder coated radial lug. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu Derating: Linearly from 100% @ +25°C to 0% @ +350°C. Electrical Tolerance: ±5% 1 Ω and over (J) ±10% under 1 Ω (K) Power rating: Based on 25°C free air rating. Overload: 10 times rated wattage for 5 seconds. Temperature coefficient: 1 to 20 Ω: ±400 ppm/°C. Above 20 Ω: ±260 ppm/°C Dielectric withstanding voltage: 1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 to 225 watt rat- ing (Measured from terminal to mounting bracket) To calculate max. amps: use the formula √P/R See page 36 for mounting hardware Non-Inductive versions available; Other sizes available; Also available in low cost Centohm or Silicone coating; Consult Ohmite. * Maximum Voltage is based on Ohm’s Law [V= √P*R] as limited by the resistance value of specified product Select 270 Type fixed resistors for applications requiring wattage ratings from 12 to 1000 watts. The 270 Type resistors are equipped with lug terminals suitable for soldering or sturdy bolt con- nection. When secure mounting is required, the hollow core of these resistors permit fastening with spring-type brackets, thru bolts or thru bolts with slotted-steel brackets. Suitable for rugged applications, the 270 Type resistors feature all-welded construction and durable lead free vitreous enamel coating. Mounting brackets not included with resistors. St andard p ar t number S for 270 S erie S = Standard values; check availability using the worldwide inventory search at www.ohmite.com Red outlined values supplied in Silicone-Ceramic coatings instead of vitreous enamel. 0.51 L12JKR51E 1 L12J1R0E 3.3 L12J3R3E 4.7 L12J4R7E 10 L12J10RE 12 L12J12RE 15 L12J15RE 22 L12J22RE 27 L12J27RE 33 L12J33RE 47 L12J47RE 68 L12J68RE 82 L12J82RE 100 L12J100E 150 L12J150E 1 –––1R0E 2 –––2R0E 3 –––3R0E 4 –––4R0E 5 –––5R0E 10 –––10RE 15 –––15RE 25 –––25RE 50 –––50RE 75 –––75RE 100 –––100E 125 –––125E 150 –––150E 200 –––200E 250 –––250E 500 –––500E 750 –––750E 800 –––800E 1,000 –––1K0E 1,500 –––1K5E 2,000 –––2K0E 180 L12J180E 270 L12J270E 330 L12J330E 390 L12J390E 470 L12J470E 560 L12J560E 1000 L12J1K0E 1200 L12J1K2E 1500 L12J1K5E 2200 L12J2K2E 2700 L12J2K7E 4700 L12J4K7E 10000 L12J10KE 18000 L12J18KE 22000 L12J22KE 51000 L12J51KE 2,500 –––2K5E 3,000 –––3K0E 3,500 –––3K5E 4,000 –––4K0E 5,000 –––5K0E 6,000 –––6K0E 7,500 –––7K5E 10,000 –––10KE 12,000 –––12KE 15,000 –––15KE 20,000 –––20KE 25,000 –––25KE 30,000 –––30KE 35,000 –––35KE 40,000 –––40KE 50,000 –––50KE 60,000 –––60KE 75,000 –––75KE 100,000 –––100KE 150,000 –––150KE 200,000 –––200KE 250,000 –––250KE Ohmic value 12 Watt Ohmic value 12 Watt Wattage Part no. Prefix Suffix Wattage Part no. Prefix Suffix ordering inf o m ade-to-order p ar t S � � � � � � � � � � � � � � � � Tolerance J = 5% K = 10% Core Diameter See “Core and Terminal Selection” Ohms R500 = 0.500 Ω 1R00 = 1 Ω 250R = 250 Ω 1K00 = 1,000 Ω 25K0 = 25,000 Ω 25K5 = 25,500 Ω RoHS Compliant Coating 270 = Vitreous 470 = Silicone Ceramic Wattage Terminal Type See “Resistor Terminals for Tubular Cores” Non-inductive Blank = Standard N = Non-inductive L 2 5 J 1 0 0 E Tolerance J = 5% K = 10% Ohms 1R0 = 1 Ω 250 = 250 Ω 1K0 = 1,000 Ω 25K = 25,000 Ω 25K5 = 25,500 Ω RoHS Compliant Wattage Series Coating Blank = Vitreous C = Centohm S = Silicone Non-inductive Blank = Standard N = Non-inductive F = Fast on (optional) Power limitations for high resis- tance values: When resistance exceeds the resistance values listed, derate the Power Rating by 25% to improve reliability: Power Resistance rating value 12W 3,900 Ω 25W 12,000 Ω 50W 35,000 Ω 100W 75,000 Ω No power derating necessary for ratings higher than 100W. See website for custom core and terminal info L D C |
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