OD/OF Series Little Demon® Carbon Composition Molded 5% & 10% Tolerance FeatureS Ohmite’s Little Demons are small, reliable carbon • Molded insulation for high dielectric strength composition resistors with exceptional strength. They are made tough by a molding process that • Rugged construction combines the terminals, insulation and resistive ele- • High surge capabilities ment into an integrated unit. Along with their small • Comparable to “Mil” RC07, RC20, and RC32 types size, Little Demons perform with low noise, dissipate heat rapidly and offer high temperature stability. • OD/OF Series available in E24 values; E12 values Color codes are readable even after prolonged use above 100KΩ thanks to a very durable coating that resists abra- sions and chipping normally associated with auto- matic insertion equipment. SerieS SpeciFicatiOnS Series Mil-R-11 Type Wattage Ohms Tolerance Max. Voltage Dielectric VAC OD RC07 0.25 2.2Ω - <100K ±5% 250 500 100K - 5.6M ±10% OF RC20 0.50 2.2Ω - <100K ±5% 350 700 100K - 20M ±10% characteriSticS Terminals Solder-coated copper terminal. 100,000 Body Molded Phenolic Single Pulse Power Capability 10,000 Tolerance ±5% (<100KΩ); W) OF ±10% (>100KΩ) er ( 1,000 w OD o P Derating Linearly from 100% @ +70°C to 0% @ 130°C se 100 ul P 10 1 10-7 10-6 10-5 10-4 10-3 10-2 10-1 1 Pulse width (s) DimenSiOnS Series Length max. Diam. max. Lead Dia. 1.135" ±0.12 L D 28.83mm ±3 OD 0.276 / 7.0 0.098 / 2.5 0.024/0.60 OF 0.406 /10.3 0.150 / 3.8 0.028/0.70 (continued) 92 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

OD/OF Series Little Demon® Carbon Composition Molded 5% & 10% Tolerance packaging All resistors are packaged in sealed poly bags with desiccant Storage: Ohmite recommends storing carbon composition to maintain a consistent humidity during storage. If parts are resistors in a controlled environment at a temperature of 5° to removed from the protective plastic bag they should be used 35°C and relative humidity of less than 60%. Inventory should as soon as possible or resealed in the plastic bag. always be used on a first-in-first-out basis. Tape/Reel OD OF QQRettyye..l// crseaiezrtle o n(m m) 45020,600000 0 23420,600000 0 0.5mm max. 52.4mm+-11..46 6mm ±.5 28(r0emf.)m260mm Gross carton wt. (kg) 12 13 ±5 Carton size (m3) 0.04 0.04 5.08mm ±.38 455mm ±5 Ammo Box OD OF Tape width (mm) 52 52 1mm max. QQGttryyo..s//bcsao crxta ornto n wt. (kg) 32001,00000 0 32001,00600 0 6605mmmm ±±55 ((OODF)) 14.5mm ±.5 Carton size (m3) 0.03 0.05 75 L1 L2 3.2mm min. mm 3mm L1 – L2 = 1mm max. 75mm ±5 5± 60.4mm±1 60.4mm ±1 reSiStOr uSe guiDelineS Carbon composition resistors are manufactured by extruding moisture and, therefore, storage recommendations should be a blend of carbon and organic binders inside a phenolic outer adhered to. Generally, any moisture absorbed during storage body. The extrusion is cut to length, leads inserted, cured, will be "baked out" during the soldering operation. If the prod- and marked to form a finished resistor. The carbon and binder uct is stored properly the resistance shift during the soldering mixture is adjusted to produce different resistance values. The operation will be minimal, less than 2% or 3%. resistors are sorted for 5%, 10%, and 20% tolerance values. Carbon composition resistors are highly hygroscopic and Carbon composition resistors are able to withstand larger changes in resistance value can occur if too much moisture is short-term pulses and higher voltages than film resistors and absorbed. For this reason, it is recommended not to use water are virtually impervious to ESD events (Electro-static dis- or water-soluble solvents to clean these components. Alcohol charge). Carbon composition resistors are also sensitive to or hydrocarbon solvents are recommended for rinsing. bake prOceDure anD cautiOnS A. Heat Treatment C. Solder heat test after treatment D. Cautions 110°C ±10°C Solder Dip Solderability: may be affected due to oxidization of lead wire 15 hours Type Temp. Time Evaluation Resistance value: some units may not completely recover to B. Frequency of OD 300°C 3 sec within ±3% original value. heat treatment OF 350°C 3 sec within ±3% Soldering heat: some treated product may have substantial 1 time only *Depth of Immersion: 4mm from the resistor resistance change during soldering operation. It is recom- body mended that parts be tested to evaluate soldering heat effects. Solder should not come in contact within 4mm of resistor body as this may cause a significant shift in resis- tance value due to high heat exposure. OrDering inFOrmatiOn • OD/OF Series available in E24 values RoHS compliant O D 6 8 3 J E-TR Series Ohms Tolerance Packaging OD 68G= 6.8 <100KΩ : J = 5% None = cut reel, 100/bag (std.) OF 680 = 68 >100KΩ : K = 10% -TR = taped and reeled 681= 680 -A = ammo pack 682= 6,800 -B = bulk (loose) 683= 68,000 684=680,000 rev 11/18-1 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 93

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: O hmite: OF124J OA104K OD222J OD220J OD22GJ OD224J OD103J OF150J OF151J OF154J OF153J OF131J OD561J OD471J OD473J OF122J OD122J OF392J OF270J OF273J OF272J OF390J OF274J OF394J OA151K OA150K OA152K OA103K OA105K OA102K OA101K OF474J OF470J OF472J OF471J OF22GJ OF203J OF473J OF47GJ OF393J OF271J OF27GJ OF391J OF152J OD152J OA122K OD221J OA393K OA391K OA390K OF331J OF33GJ OF333J OF221J OF220J OF222J OF224J OD180J OD104J OA471K OA474K OA470K OA473K OD470J OD474J OD472J OD47GJ OD394J OD27GJ OD392J OD272J OD270J OD274J OD391J OD393J OD273J OD390J OD271J OD332J OD330J OF330J OF332J OF334J OD105J OD102J OD101J OD33GJ OD333J OD331J OD153J OD150J OD154J OD151J OD181J OD203J OA184K OA333K OA22GK OA224K OA220K