   The 20 Series axial lead resis- S P E C I F I C A T I O N S tors are both durable and Material 20 Series economical. They have all the Coating: Conformal electrical attributes of the more lead free vitreous enamel. Vitreous Enamel Conformal expensive 90 Series resistors, Core: Ceramic. including an all-welded con- Terminals: Solder-coated axial Axial Lead Wirewound Resistors struction. lead. They offer the durability of 5% Tolerance Standard Derating a lead free conformal vitreous Linearly from enamel coating and are ideal 100% @ +25°C to 1.5 / 38.1 L D for computer, communications 0% @ +350°C. and industrial applications in Electrical which cost, quality and reliabil- Tolerance: ±5% standard. ity are key considerations. Other tolerances available. Power rating: Based on 25°C F E A T U R E S free air rating (other wattages • Rugged vitreous enamel coating available). Dimensions (in. / mm) withstands high humidity and Overload: Series Wattage Ohms Length* Diam.* Voltage Lead ga. temperature cycling. Under 7 watts: 5 times rated 21 1 0 0..1 1- -3 3..2 2K K 0 0..4 40 06 6 / / 1 10 0..3 3 0 0..1 15 56 6 / / 4 4..0 0 7 75 5 24 • Durable construction, recom- wattage for 5 seconds. 22 2 0.1-4.4K 0.406 / 10.3 0.219 / 5.6 65 20 mended for industrial applica- 7 watts and over: 10 times rated tions where reliability is para- wattage for 5 seconds. 2 23 3 3 3 0 0..1 1- -1 10 0K K 0 0..5 50 00 0 / / 1 12 2..7 7 0 0..2 22 20 0 / / 5 5..6 6 1 13 35 5 2 20 0 mount. Temperature coefficient: 25 5 0.1-28K 1.000 / 25.4 0.276 / 7.0 330 20 • All-welded construction. 1 to 9.99 ohms: ±50 ppm/°C 27 7 0 0..1 1- -6 62 2K K 1 1..2 25 50 0 / / 3 31 1..8 8 0 0..3 39 94 4 / / 1 10 0..0 0 4 45 50 0 2 20 0 • Flame resistant lead free vitre- 10 ohms and over: ±30 ppm/°C 20 10 0.1-100K 1.844 / 46.8 0.394 / 10.0 720 20 ous enamel coating. 12.5 watt size available on special order • RoHS compliant product avail- able Jan. 2006 Add “E” suffix to *For units below 1Ω, add 15% to body diameter, 10% to body length. part number to specify. S T O C K P A R T N U M B E R S F O R S T A N D A R D R E S I S T A N C E V A L U E S Wattage Wattage Wattage Part No. Part No. Part No. Prefix  Prefix  Prefix  Suffix Suffix Suffix 0.10 ––– R10    62 –––62R       1,800 –––1K8       0.13 ––– R13    68 –––68R       2,000 –––2K0       0.15 ––– R15    75 –––75R       2,200 –––2K2       0.20 ––– R20    82 –––82R       2,500 –––2K5       0.25 ––– R25    100 –––100       2,700 –––2K7       0.30 ––– R30    120 –––120       3,000 –––3K0       0.33 ––– R33    125 –––125       3,300 –––3K3     0.50 ––– R50    150 –––150       3,500 –––3K5     0.75 ––– R75    180 –––180       3,900 –––3K9     1 ––– 1R0       200 –––200       4,000 –––4K0     1.5 –––1R5       220 –––220       4,500 –––4K5     2 –––2R0       225 –––225       4,700 –––4K7     2.2 –––2R2       250 –––250       5,000 –––5K0     3 –––3R0       270 –––270       6,000 –––6K0     4 –––4R0       300 –––300       6,800 –––6K8     5 –––5R0       330 –––330       7,000 –––7K0     7.5 –––7R5       350 –––350       7,500 –––7K5     10 –––10R       390 –––390       8,000 –––8K0     12 –––12R       400 –––400       9,000 –––9K0     15 –––15R       450 –––450       10,000 –––10K     18 –––18R       470 –––470       12,000 –––12K    20 –––20R       500 –––500       13,000 –––13K   22 –––22R       560 –––560       15,000 –––15K    25 –––25R       600 –––600       17,000 –––17K   27 –––27R       680 –––680       20,000 –––20K    30 –––30R       750 –––750       22,000 –––22K    33 –––33R       800 –––800       25,000 –––25K    35 –––35R       820 –––820       30,000 –––30K  39 –––39R       900 –––900       33,000 –––33K  40 –––40R       1,000 –––1K0       35,000 –––35K  47 –––47R       1,100 –––1K1       40,000 –––40K  50 –––50R       1,200 –––1K2       50,000 –––50K  56 –––56R       1,500 –––1K5        = Most popular stock values S S Sh h ha a ad d de e ed d d v v va a alllu u ue e es s s iiin n nv v vo o olllv v ve e e v v ve e er r ry y y f f fiiin n ne e e r r re e es s siiis s st t ta a an n nc c ce e e w w wiiir r re e e a a an n nd d d  = Stock values s s s sh h h ho o o ou u u ulllld d d d n n n no o o ot t t t b b b be e e e u u u us s s se e e ed d d d iiiin n n n c c c cr r r riiiit t t tiiiic c c ca a a allll a a a ap p p pp p p plllliiiic c c ca a a at t t tiiiio o o on n n ns s s s w w w wiiiit t t th h h ho o o ou u u ut t t t b b b bu u u ur r r rn n n n- - - - iin n a an nd d/ /o or r t th he er rm ma all c cy yc clliin ng g..  = Non-stock values subject to minimum handling charge per item Ohmite Mfg. Co. Ohmite Mfg. Co. 1600 Golf Rd., Suite 850, Rolling Meadows, IL 60008 • Tel. 1-866-9-OHMITE • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 17 Ohmic value 21J––– 1 22J––– 2 23J––– 3 25J––– 5 27J––– 7 20J––– 10 Ohmic value 21J––– 1 22J––– 2 23J––– 3 25J––– 5 27J––– 7 20J––– 10 Ohmic value 21J––– 1 22J––– 2 23J––– 3 25J––– 5 27J––– 7 20J––– 10