RES-90 OHMITE | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 2
Technical content
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 89 Coating Molded lead free vitreous enamel Core Ceramic Terminals Solder-coated copper clad 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% (other tolerances available) Power rating Based on 25°C free air rating (other wattages available*) Maximum ohmic values See chart Overload Under 11 watts: 5 times rated wattage for 5 seconds. 11 watts: 10 times rated wattage for 5 seconds Temperature coefficient 1 to 9.99Ω: ±100 ppm/°C; 10Ω and over: ±30 ppm/°C Dielectric withstanding voltage 500 VAC: 1W rating; 1000 VAC: 2, 3, 5 and 11W
90 Series
Lead Free Vitreous Enamel Molded Axial Term. Wirewound, 5% Tolerance Standard Series Wattage* Ohms Voltage 91 1.5 0.1Ω-3.6K 150 92 2.25 0.1Ω-3.5K 85 93 3.25 0.1Ω-10.5K 200 95 5.0 0.1Ω-25K 495 96 6.5 0.1Ω-50K 625 90 11.0 0.1Ω-91K 1080 * 2x power ratings by using heat-sink mounting clips shown on following page. Note: Due to space restrictions, parts are stamped with wattage ratings reduced to the nearest whole number. The actual wattage ratings are as published in this catalog. Series Wattage Length Diameter Lead gauge LD1.5 in. / 38.1mm When you need the highest quality wirewound axial terminal resistors available, choose Ohmite’s 90 Series resistors. They are manufactured by a unique process that molds the vitreous enamel over the resistive ele- ment, helping to ensure consistent dimensions. This uniformity permits 90 Series resistors to be mounted in clips, creating a heat-sinking benefit (see next page). The durable vitreous enamel coating, which is totally lead free, permits the 90 Series resistors to maintain a hard coating while operating at high temperatures. Mechanical integrity is enhanced by the all-welded construction.
FeatureS
- Molded Construction provides consistent shape and size (Permits mounting in clips which extends power rating).
- Meets MIL-R-26 requirements for insulated resis- tors.
- All-welded construction.
- Flame resistant lead free vitreous enamel coating.
- Higher ratings in smaller sizes.
- Heat sink mounting clips available.
- RoHS compliant; add “E” suffix to part number to specify. CharaCteriStiCS SerieS SpeCiFiCationS DimenSionS (in./mm max.) (continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com90 Standard part numbers for mounting clip
- Prevents severe vibration or mechanical shock to resistor
- Increases resistor wattage up to 100% when mounted on metal surface (1.5
- Holes in clip base permit fastening to chassis surface with machine screws, eyelets or rivets
- Sold in bags of ten (10) mounting Clip Resistor Clip Clip Clip Hole Hole rating length width height No. of centers diameter = Most popular standard values = Standard values = Non-standard values subject to minimum handling charge per item Standard part numbers for 90 series 27,000 –––27K 30,000 –––30K 33,000 –––33K 35,000 –––35K 36,000 –––36K 39,000 –––39K 40,000 –––40K 43,000 –––43K 45,000 –––45K 47,000 –––47K 50,000 –––50K 51,000 –––51K = Standard values = Non-standard values subject to minimum handling charge per item Shaded values involve very fine resistance wire and should not be used in critical applications without burn- in and/or thermal cycling. Ohmic value 95J––– 5 90J––– 11 Wattage Part No. Prefix Suffix Ohmic value 93J––– 3.25 95J––– 5 90J––– 11 Wattage Part No. Prefix Suffix Ohmic value 91J––– 1.5 92J––– 2.25 93J––– 3.25 95J––– 5 90J––– 11 Wattage Part No. Prefix Suffix Ohmic value 91J––– 1.5 92J––– 2.25 93J––– 3.25 95J––– 5 90J––– 11 Wattage Part No. Prefix Suffix Ohmic value 91J––– 1.5 92J––– 2.25 93J––– 3.25 95J––– 5 90J––– 11 Wattage Part No. Prefix Suffix
91 N JR10E
Axial Term. Wirewound Resistance Value 1R0 = 1.0Ω 10R =10.0Ω 250= 250Ω 1K0 = 1,000Ω 4K5 = 4,500Ω 51K =5 1,000Ω Tolerance J= 5% Wattage 1= 1.5W 2= 2.25W 3= 3.25W 5 =5 W 0= 11W Non-Inductive Winding Optional (blank = std. winding) RoHS Compliant
orDering inFormation
Lead Free Vitreous Enamel Molded Axial Term. Wirewound, 5% Tolerance Standard