210 Series Dividohm® Vitreous Enamel Adjustable Power F e at u r e s • Terminals suitable for soldering or bolt connection. • Adjustable lug supplied • High wattage applications • All-welded construction • Rugged lead free vitreous enamel coating. • Flame resistant coating • Additional adjustable lugs available • RoHS compliant product available. Add “E” suffix to part number to specify Choose Ohmite’s 210 Type adjustable resistors for applications requiring settings at different resistance values. These wirewound resistors are equipped with an adjustable lug, making them ideal for adjusting circuits, obtaining odd resistance values and setting equip ment to meet various line voltages. 210 Type resistors feature a hollow core to permit secure fastening with spring-type clips or thru bolts with washers. They also offer the durability of lead free vitreous enamel coating and all-welded construction. Mounting brackets not included with resistors. S ERIE S S P ECI F ICATI O N S Series D12 D25 D50 D75 D100 D175 D225 D500 D1000 Wattage 12 25 50 75 100 175 225 500 1000 Ohms 1.0-10K 1.0-25K 1.0-100K 1.0-100K 1.0-100K 1.0-100K 1.0-100K 1.5-15K 3.0-27.7K Core Code D K K K M P P S S Voltage 565 625 1625 2625 2845 3595 4595 4970 8900 Standard Terminal 57 40 40 40 40 46 46 45 45 Other sizes available; contact Ohmite. Also available in low cost Centohm or Silicone coating; contact Ohmite. characteristics Adjustability 10% to 90% of full value. Wattage is proportional to this adjusted resistance value. Coating Lead free vitreous enamel. Large models (500 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 Adjustable Nickel plated steel. (Screwdriver type adjustable lug supplied terminal standard. Other types, including silver contact units, available.) Derating Linearly from 100% @ +25°C to 0% @ +350°C. Tolerance ±10% (K) Power rating Based on 25°C free air rating. The stated wattage rating applies only when the entire resistance is in the circuit. Setting the lug at an intermediate point reduces the wattage rating by approximately the same proportion. Example: If the lug is set at half resistance, the wattage is reduced by approx. one-half. Overload 10 times rated wattage for 5 seconds. Power limitations for high resistance values: When resistance exceeds the resistance values listed below, derate the Power Rating by 25% to improve reliability: Power Resistance No power rating value derating necessary for ratings 12W 4,500Ω higher than 25W 9,000Ω 100W. 50W 20,000Ω 75W 100W Temperature ±260 ppm/°C coefficient Dielectric 1000 VAC: 12 to 100 watt rating. 3000 VAC: 175 and 225 watt ratwithstanding ing (measured from terminal to mounting bracket) voltage Max. amps To calculate, use the formula √P/R. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] 109 35,000Ω 50,000Ω 210 Series Dividohm® Vitreous Enamel Adjustable Power d i m e ns i ons (in. / mm) Series Wattage L D C Core Code Standard Terminal D12 12 1.75 / 44.4 0.313 / 7.94 0.188 / 4.76 D 57 D50 50 4.0 / 101.6 0.562 / 14.3 0.313 / 7.94 K 40 D25 D C 25 D75 D100 L D175 D225 D500 D1000 2.0 / 50.8 75 0.562 / 14.3 6.0 / 152.4 100 0.562 / 14.3 6.5 / 165.1 175 0.750 / 19.1 8.5 / 215.9 225 500 1.125 / 28.6 10.5 / 266.7 1.125 / 28.6 20.0 / 508.0 2.50 / 63.5 12.0 / 304.8 1000 2.50 / 63.5 0.313 / 7.94 K 0.313 / 7.94 40 K 0.50 / 12.7 40 M 0.75 / 19.1 40 P 0.75 / 19.1 1.75 / 44.5 46 P 46 S 45 S 1.75 / 44.5 45 o r d e r i n g i nfo r m a t i on Made-to-order Parts Coating Blank = Vitreous C = Centohm S = Silicone RoHS Compliant Series Wattage Tolerance J = 5% K = 10% Core Diameter See “Core and Terminal Selection” Ohms 1R0 = 1Ω 250 = 250Ω 1K0 = 1,000Ω 25K = 25,000Ω 25K5 = 25,500Ω Terminal Type See “Resistor Terminals for Tubular Cores” Wattage Coating 210 = Vitreous 410 = Silicone Ceramic 610 = Centohm RoHS Compliant See 270 series custom core and terminal info Tolerance J = 5% K = 10% Ohms R500 = 0.500Ω 1R00 = 1Ω 250R = 250Ω 1K00 = 1,000Ω 25K0 = 25,000Ω 25K5 = 25,500Ω = Standard values; check availability at www.ohmite.com 110 –––150E –––200E –––250E –––300E –––400E –––500E –––750E –––800E –––1K0E –––1K25E –––1K5E –––2K0E –––2K5E 3,000 4,000 5,000 6,000 7,000 7,500 10,000 12,000 15,000 20,000 25,000 50,000 100,000 50KΩ and 100KΩ resistance values involve very fine resistance wire and should not be used in critical applications without burn-in and/or thermal cycling. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • [email protected] D225K––– 225 D175K––– 175 D100K––– 100 D75K––– 75 D25K––– 25 D50K––– 50 Part No. Prefix Suffix –––3K0E –––4K0E –––5K0E –––6K0E –––7K0E –––7K5E –––10KE –––12KE –––15KE –––20KE –––25KE –––50KE –––100KE D12K––– 12 Ohmic value D1000K–––1000 D500K––– 500 D225K––– 225 D100K––– 100 D175K––– 175 D75K––– 75 D50K––– 50 D25K––– 25 150 200 250 300 400 500 750 800 1,000 1,250 1,500 2,000 2,500 D12K––– 12 Ohmic value D500K––– 500 D225K––– 225 D175K––– 175 D100K––– 100 75 D75K––– 50 25 D25K––– D50K––– 12 D12K––– Part No. Prefix Suffix Wattage Part No. Prefix Suffix 1.0 –––1R0E 2 –––2R0E 3 –––3R0E 4 –––4R0E 5 –––5R0E 7.5 –––7R5E 10 –––10RE 15 –––15RE 20 –––20RE 25 –––25RE 50 –––50RE 75 –––75RE 100 –––100E Wattage Ohmic value Wattage D1000K–––1000 Standard Values