89 series Metal-Mite® Aluminum Housed Axial Terminal Wirewound, 1% Tolerance The 89 Series is a high-performance axial type resistor. These molded-construction metal-housed resistors are available in higher power ratings than standard axial resistors and are better suited to with- standing vibration, shock and harsh environmental conditions. Features The 89 Series Metal-Mite® resistors are aluminum • High Stability: ±0.5% ∆R housed to maintain high stability during operation • High power to size ratio and to permit secure mounting to chassis surfaces. The metal housing also provides heat-sinking • Metal housing allows chassis mounting and pro- capabilities. vides heat sink capability series speCiFiCations 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 CharaCteristiCs 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. (continued) 128 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

89 series Metal-Mite® Aluminum Housed Axial Terminal Wirewound, 1% Tolerance 805 810, 825, 850 Dimensions B (in./mm) E Ø 1.27 L J ±.13 Ø 2.0 ±.25 D A GA 2.1 16AWG ±.1 L min. F Dimensions have changed J F E as of August 2015 B G D K } C C H H K 2.16 min. A B C D E F G H J K L max. max. max. max. max. ±.3mm ±.3mm max. max. max. ±.25mm 805 0.65" / 16.5 1.18" / 30.0 0.35" / 8.8 0.33" / 8.5 0.63" / 15.9 0.44" / 11.3 0.49" / 12.4 0.18" / 4.5 0.09" / 2.4 0.07" / 1.8 0.09" / 2.4 810 0.83" / 21.0 1.44" / 36.5 0.43" / 11.0 0.44" / 11.2 0.78" / 19.9 0.56" / 14.3 0.63" / 15.9 0.22" / 5.5 0.11" / 2.8 0.07" / 1.8 0.09" / 2.4 825 1.10" / 28.0 2.01" / 51.0 0.58" / 14.8 0.56" / 14.2 1.07" / 27.3 0.72" / 18.3 0.78" / 19.8 0.30" / 7.7 0.20" / 5.2 0.10" / 2.6 0.13" / 3.2 850 1.10" / 28.0 2.85" / 72.5 0.58" / 14.8 0.56" / 14.2 1.93" / 49.1 1.56" / 39.7 0.84" / 21.4 0.33" / 8.4 0.20" / 5.2 0.10" / 2.6 0.13" / 3.2 orDerinG inFormation Wattage Wattage Wattage Ohmic value PPSaruerffftii xxN o. 805F ––– 5 810F ––– 10 825F ––– 25 850F ––– 50 Ohmic value PPSaruerffftii xxN o. 805F ––– 5 810F ––– 10 825F ––– 25 850F ––– 50 Ohmic value PPSaruerffftii xxN o. 805F ––– 5 810F ––– 10 825F ––– 25 850F ––– 50 8NOopnt0io-Inna5dl u(bcNltaivnek WF= sintdd5.i nwgiRnding0) RCEooHmSpliant 0.005 –––R005   20 –––20R   1,500 –––1K5     Series Tolerance Ohms 0.010 –––R010   25 –––25R     2,000 –––2K0     805 = 5 Watt F = 1% R005=0.005Ω 0.025 –––R025   30 –––30R   2,500 –––2K5   810 = 10 watt J = 5% R10 =0.1Ω 825 = 25 watt 1R0 =1.0Ω 0.1 –––R10   40 –––40R   3,000 –––3K0     850 = 50 watt 250 = 250Ω 0.3 –––R30   50 –––50R     3,500 –––3K5   1K0 = 1,000Ω 1K5 = 1,500Ω 0.5 –––R50   75 –––75R     4,000 –––4K0   25K =25,000Ω 0.7 –––R70   100 –––100     4,500 –––4K5    = Standard values 1.0 –––1R0     150 –––150     5,000 –––5K0      = Non-standard values subject to minimum 1.5 –––1R5   200 –––200     6,000 –––6K0   handling charge per item 2.0 –––2R0     250 –––250     10,000 –––10K     Shaded values involve very fine resistance wire and should not be used in critical applications 3.0 –––3R0     300 –––300   15,000 –––15K     without burn-in and/or thermal cycling. 4.0 –––4R0   400 –––400   20,000 –––20K   5.0 –––5R0     500 –––500     25,000 –––25K     10.0 –––10R     750 –––750     50,000 –––50K  15.0 –––15R     1,000 –––1K0     75,000 –––75K  100,000 –––100K  As of September 2006, the 89 Series is no longer offered as Mil. Spec. 1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 129