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FEATURES
•HighStability:±0.5%∆R
•Highpowertosizeratio
•Metalhousingallowschassismountingandpro-
videsheatsinkcapability
89 Series
Metal-Mite® Aluminum Housed
Axial Terminal Wirewound, 1% Tolerance
Series Wattage Ohms Voltage
805 5 0.10-25K 210
810 10 0.10-50K 320
825 25 0.010-75K 520
850 50 0.005-100K 1170
Non-Inductive versions available. Insert “N” before tolerance code.
Example: 850NF560
The89Seriesisahigh-performanceaxialtype
resistor.Thesemolded-constructionmetal-housed
resistorsareavailableinhigherpowerratingsthan
standardaxialresistorsandarebettersuitedtowith-
standingvibration,shockandharshenvironmental
conditions.
The89SeriesMetal-Mite®resistorsarealuminum
housedtomaintainhighstabilityduringoperation
andtopermitsecuremountingtochassissurfaces.
Themetalhousingalsoprovidesheat-sinking
capabilities.
Housing Metal, anodized aluminum
Internal Coating Silicone
Core Ceramic
Terminals Solder-coated axial
Derating Linearly from 100% @ +25°C to 0% @ +275°C.
Tolerance ±1% and ±5% (other tolerances available).
Power rating Rating is based on chassis mounting area and temperature stability. Proper heat sink as follows: 5W and
10W units, 4” x 6” x 2” x .040” Aluminum chassis; 25W units, 5” x 7” x 2” x .040” Aluminum chassis;
50W units, 12” x 12” x .059” Aluminum panel.
Maximum ohmic values See chart.
Overload 5 times rated wattage for 5 seconds.
Temperature coefficient Under 1Ω: ±90 ppm/°C; 1 to 9.99Ω: ±50 ppm/°C; 10Ω and over: ±20 ppm/°C.
Dielectric withstanding voltage 5W and 10W rating,1000 VAC; 25 and 50W ratings, 2250 VAC.
CHARACTERISTICS
SERIES SPECIFICATIONS
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