23J900

20 Series Vitreous Enamel Conformal Axial Terminal Wirewound, 5% Tolerance Std. F e at u r e s • Rugged vitreous enamel coating withstands high humidity and temperature cycling. • Durable construction, recommended for industrial applications where reliability is paramount. • All-welded construction. • Flame resistant lead free vitreous enamel coating. • RoHS compliant; Add “E” suffix to part number to specify. The 20 Series axial terminal resistors are both durable and economical. They have all the electrical attributes of the more expensive 90 Series resistors, including all-welded construction. They offer the durability of a lead free conformal vitreous enamel coating and are ideal for computer, communications and industrial applications in which cost, quality, and reliability are key considerations. S e r i e s s p e c i f i c at i o n s Series 21 22 23 25 27 20 Wattage 1 2 3 5 7 10 Ohms 1.0-3.0K 1.0-3.0K 0.1-10K 0.1-28K 0.1-25K 0.1-100K 12.5 watt size available on special order Max. Voltage* 75 65 135 330 450 720 *Maximum Voltage is based on Ohm’s Law [V=√(P*R)] as limited by the resistance value of specified product C h a r a c t e r i s t i cs Coating Conformal lead free vitreous enamel Core Ceramic. Terminals Solder-coated axial. RoHS solder composition is 96% Sn, 3.5% Ag, 0.5% Cu Derating Linearly from 100% @ +25°C to 0% @ +350°C Tolerance ±5% standard; other tolerances available Power rating Based on 25°C free air rating (other wattages available) Overload Under 7 watts: 5 times rated wattage for 5 seconds; 7 watts and over: 10 times rated wattage for 5 seconds Temperature coefficient 1 to 9.99 ohms: ±50 ppm/°C; 10 ohms and over: ±30 ppm/°C Dimensions (in./mm max.) 1.5 in. / 38.1mm min. Series Wattage L D Length* (max.) Diam.* (max.) Lead ga. 21 1 0.421 / 10.7 0.156 / 4.0 24 23 3 0.515 / 13.1 0.220 / 5.6 20 22 25 27 20 2 5 7 10 0.421 / 10.7 1.015 / 25.8 1.265 / 32.1 1.859 / 47.2 0.219 / 5.6 0.276 / 7.0 0.394 / 10.0 0.394 / 10.0 20 20 20 20 *For units below 1Ω, add 15% to body diameter, 10% to body length. (continued) 80 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 20 Series Vitreous Enamel Conformal Axial Terminal Wirewound, 5% Tolerance Std. OR D ERIN G IN F ORMATION                                                                                                    Ohmic value 20J––– 10 27J––– 7 25J––– 5 23J––– 3 22J––– 2                                                                   1,800 2,000 2,200 2,500 2,700 3,000 3,300 3,500 3,900 4,000 4,500 4,700 5,000 6,000 6,800 7,000 7,500 8,000 9,000 10,000 12,000 13,000 15,000 17,000 20,000 22,000 25,000 30,000 33,000 35,000 40,000 50,000                                                                                                                     Shaded values involve very fine resistance wire and should not be used in critical applications without burn-in and/or thermal cycling.  = Standard values  = Non-standard values subject to minimum handling charge per item RoHS Compliant 21JR10E 20 Series Vitreous Enamel Axial Lead Wirewound –––1K8 –––2K0 –––2K2 –––2K5 –––2K7 –––3K0 –––3K3 –––3K5 –––3K9 –––4K0 –––4K5 –––4K7 –––5K0 –––6K0 –––6K8 –––7K0 –––7K5 –––8K0 –––9K0 –––10K –––12K –––13K –––15K –––17K –––20K –––22K –––25K –––30K –––33K –––35K –––40K –––50K 20J––– 10                                  27J––– 7 –––62R –––68R –––75R –––82R –––100 –––120 –––125 –––150 –––180 –––200 –––220 –––225 –––250 –––270 –––300 –––330 –––350 –––390 –––400 –––450 –––470 –––500 –––560 –––600 –––680 –––750 –––800 –––820 –––900 –––1K0 –––1K1 –––1K2 –––1K5 25J––– 5 62 68 75 82 100 120 125 150 180 200 220 225 250 270 300 330 350 390 400 450 470 500 560 600 680 750 800 820 900 1,000 1,100 1,200 1,500 21J––– 1 Ohmic value 23J––– 3                                  22J––– 2                         Part No. Prefix  Suffix 21J––– 1                                  20J––– 10                                  27J––– 7                         25J––– 5 23J––– 3 21J––– 1                         22J––– 2 0.10 ––– R10 0.13 ––– R13 0.15 ––– R15 0.20 ––– R20 0.25 ––– R25 0.30 ––– R30 0.33 ––– R33 0.50 ––– R50 0.75 ––– R75 1 ––– 1R0 1.5 –––1R5 2 –––2R0 2.2 –––2R2 3 –––3R0 4 –––4R0 5 –––5R0 7.5 –––7R5 10 –––10R 12 –––12R 15 –––15R 18 –––18R 20 –––20R 22 –––22R 25 –––25R 27 –––27R 30 –––30R 33 –––33R 35 –––35R 39 –––39R 40 –––40R 47 –––47R 50 –––50R 56 –––56R Part No. Prefix  Suffix Wattage  Part No. Prefix  Suffix Wattage  Wattage  Ohmic value Standard part numbers Wattage Tolerance Resistance Value R10 = 0.10Ω 1 = 1W J = 5% 1R0 = 1.0Ω 2 10R = 10.0Ω 3 250 = 250Ω 5 1K0 = 1,000Ω 7 4K5 = 4,500Ω 0 = 10W 50K = 50,000Ω rev 6/20-1 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 81