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| Metal Oxide Power Resistors FEATURES * Temperature Range: -55C ~ +235C (derated over 70C) * 5% tolerance * Excellent flame retardant coating * Stable performance in diverse environments * High purity ceramic core * Other values may be available on request DERATING CURVE -55C 100 Percent Rated Loaded 80 60 40 20 155C 0 -50 0 50 60 80 100 120 140 160 180 200 220 240 70C MO Series Ambient Temperature (C) PART NUMBERING SYSTEM 2 8 Series 1 - 1 0 Value K / R E E L Suffix Suffix Code: (blank) REEL Package: Bulk Tape and Reel SERIES, SIZE, WATTAGE, RANGE OF VALUES, VOLTAGE, AND DIMENSIONS d H Series 281 282 283 286 261 262 Case Size Small Small Small Small Standard Standard Watts (W) 1 2 3 5 1 2 Standard Range of Values 0.1 ~ 1.0M 0.1 ~ 1.0M 0.1 ~ 1.0M 0.22 ~ 560K 0.1 ~ 1.0M 0.1 ~ 1.0M L H D Dimensions (mm) D (max.) H 3 4 28 5 28 5.5 28 8 28 5 28 5.5 28 Voltage (V) (max.) @ 70C Working Overload Withstanding 350 600 350 350 600 350 350 600 350 500 800 500 350 600 350 350 600 350 L (max.) 10 12 16 25 12 16 d +.02, -.05 0.7 0.7 0.8 0.8 0.7 0.8 STANDARD STOCKED VALUES () 0.47 0.5 0.51 0.56 0.62 0.68 0.75 0.82 0.91 1.0 1.1 1.2 1.3 1.5 1.6 1.8 2.0 2.2 2.4 2.7 3.0 3.3 3.6 3.9 4.3 4.7 5.1 5.6 6.2 6.8 7.5 8.2 9.1 10 11 12 13 15 16 18 20 22 24 27 30 33 36 39 43 47 51 56 62 68 75 82 91 100 110 120 130 150 160 180 200 220 240 270 300 330 360 390 430 470 510 560 620 680 750 820 910 1.0K 1.1K 1.2K 1.3K 1.5K 1.6K 1.8K 2.0K 2.2K 2.4K 2.7K 3.0K 3.3K 3.6K 3.9K 4.3K 4.7K 5.1K 5.6K 6.2K 6.8K 7.5K 8.2K 9.1K 10K 11K 12K 13K 15K 16K 18K 20K 22K 24K 27K 30K 33K 36K 39K 43K 47K 51K 56K 62K 68K 75K 82K 91K 100K 110K 120K 130K 150K 160K 180K 200K 220K 240K 270K 300K 330K 360K 390K 430K 470K 510K 560K 620K 680K 750K 820K 910K 1.0M XICON PASSIVE COMPONENTS * (800) 628-0544 XC-600043 Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation. Date Revised: 9/28/05 Metal Oxide Power Resistors CONSTRUCTION MO Series No. 1 2 3 4 5 6 7 Name Basic Resistance Film End Cap Lead Wire Joint Coating Color Code Material BodyRod Type Ceramics Metal Oxide Film Steel (Tin plated iron surface) Annealed copper wire (Electrosolder plated surface) Pb Free By welding Insulated & Non-Flame Paint (Color : Sea-Blue ) Non-Flame epoxy resin 6 23 4 1 5 CHARACTERISTICS Characteristics DC. Resistance Limits Must be within the specified tolerance. Test Methods ( JIS C 5201-1 ) 5.1 The limit of error of measuring apparatus shall not exceed allowable range or 5% of resistance tolerance 5.2 Natural resistance change per temp. degree centigrade. R2-R1 x106 (PPM/C) R1(t2-t1) R1: Resistance value at room temperature (t1) R2: Resistance value at room temp.plus 100C (t2) 5.5 Permanent resistance change after the application of a potential of 2.5 times RCWV or the max overload voltage respectively specified in the above list, whichever less for 5 seconds. 5.7 Resistors shall be clamped in the trough of a 90 metallic V-block and shall be tested at AC potential respectively specified in the table 1 for 60 + 10/-0 seconds. 5.8 Resistance change afther 10,000 cycles (1 second "on", 25 seconds "off") at 4 times RCWV or the max. pulse overload voltage 6.1 Direct load Resistance to a 2.5 kgs direct load for 10 secs. in the direction of the longitudinal axis of the terminal leads. Twist test : Terminal leads shall be bent through 90 at a point of about 6mm from the body of the resistor and shall be rotated through 360 about the original axis of the bent terminal in alternating direction for a total of 3 rotations. 6.4 Permanent resistance change when leads immersed to 3.2 to 4.8 mm from the body in 350 C 10C solder for 3 0.5 seconds 6.5 The area covered with a new , smooth clean , shiny and continuous surface free from concentrated pinholes. Test temp. of solder : 245C 3C Dwell time in solder : 2 ~ 3 seconds Temperature coefficient Within the temperature coefficient specified below 350 PPM / C Short time overload Resistance change rate is (2 % + 0.05) Max. with no evidence of mechanical damage Dielectric withstanding voltage No evidence of flashover mechanical damage,arcing or insulation break down. Pulse overload Resistance change rate is (5% +0.05) Max. with no evidence of mechanical damage Terminal strength With no evidence of mechanical damage. Resistance to soldering heat Resistance change rate is (1% + 0.05) Max. with no evidence of mechanical damage. Solderability 95 % coverage Min. XICON PASSIVE COMPONENTS * (800) 628-0544 XC-600043 Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation. Date Revised: 9/28/05 Metal Oxide Power Resistors CHARACTERISTICS (Cont.) Characteristics Resistance to solvent Limits No deterioration of protective coatings and markings. Test Methods ( JIS C 5201-1 ) MO Series 6.9 Specimens shall be immersed in a bath of trichroethane completely for 3 minutes with ultrasonic. 7.4 Resistance change after continuous 5 cycles for duty shown below: StepTemperature Time 1 -55C 3C 2 Room temp. 3 +155C 2C 4 Room temp. 7.9 Resistance change after 1,000 hours operating at RCWV with duty cycle of (1.5 hours "on", 0.5 hour "off") in a humidity test chamber controlled at 40C 2C and 90 to 95 % relative humidity 7.10 Permanent resistance change after 1,000 hours operating at RCWV with duty cycle of ( 1.5 hours "on", 0.5 hour "off" ) at 70C 2C ambient 7.12 Resistors shall resist flaming or arcing when overloaded up to 16 times RCWV Temperature cycling Resistance change rate is (2% + 0.05) Max. with no evidence of mechanical damage. 30 mins 10~15 mins 30 mins 10~15 mins Resistance value Load life in humidity < than 100K >100K R/R 5% 10 % Resistance value Load life < than 100K > 100K Non-Flame R/R 5% 10 % No evidence of flaming or arcing XICON PASSIVE COMPONENTS * (800) 628-0544 XC-600043 Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation. Date Revised: 9/28/05 |
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