CR25-27R Netech

If you need to reduce this logo, Cement Power Resistorsonly do so on the page y (RoHS Compliant)ou are CR-RC Series adding it to. This is the original FEATURES and must not change. Temperature Range: -55C ~ +155C 5% tolerance Exceptionally small, sturdy, and reliable Sealed with a special cement Excellent moisture resistance High temperature stability Ceramic flame retardant package Recommended wash method is alcohol HEAT RISE CHART DERATING CURVE 70 155 275 250 100 200 80 150 60 100 40 20 0 0 20 40 60 80 100 -50 0 50 100 150 200 250 300 Rated Load (%) Ambient Temperature (C) PART NUMBERING SYSTEM 2 8 0 C R 5 - 1 0 K - R C Prefix Series Watts Value Suffix (RoHS Compliant) SERIES, WATTAGE, VALUE-RANGE, AND DIMENSIONS d H IIL W Watts Value Ranges ( ) Dimensions (mm) Series Wire Wound Metal Oxide L 1 W 1 H 1 I 5 d 0.05 (W) CR 5 0.1 ~ 47 48 ~ 25K 22 10 9 35 0.75 CR 10 0.1 ~ 910 911 ~ 25K 49 10 9 35 0.75 CR 15 1 ~ 1K - - N/A - - 49 12.5 11.5 35 0.75 CR 25 2 ~ 1.0K - - N/A - - 64 14.5 13.5 35 0.75 STANDARD STOCKED VALUES () 0.1 0.33 0.56 1.0 1.8 3.3 4.7 6.8 11 18 27 43 62 100 160 250 390 560 910 1.5K 2.4K 4.7K 0.15 0.39 0.62 1.1 2.0 3.6 5.0 7.5 12 20 30 47 68 110 180 270 430 620 1.0K 1.6K 2.7K 5.0K 0.2 0.43 0.68 1.2 2.2 3.9 5.1 8.2 13 22 33 50 75 120 200 300 470 680 1.1K 1.8K 3.0K 10K 0.22 0.47 0.75 1.3 2.4 4.0 5.6 9.1 15 24 36 51 82 130 220 330 500 750 1.2K 2.0K 3.3K 20K 0.27 0.5 0.82 1.5 2.7 4.3 6.2 10 16 25 39 56 91 150 240 360 510 820 1.3K 2.2K 3.9K 25K 0.3 0.51 0.91 1.6 3.0 *Other values available by special request XICON PASSIVE COMPONENTS (800) 628-0544 XC-600041 Date Revised: 05/15/17 Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation. 5W 10W 15-25W Heat Rise (C) Percent Rated Load (%)Cement Power Resistors (RoHS Compliant) CR-RC Series CONSTRUCTION No. Subpart Name Material Material Generic Name 1 Body Rod Type Ceramics Al O , SiO 2 3 2 2 5 3 2 End Cap Tin plated iron surface Tin : 5%, Iron : 95% 3 Lead Annealed copper wire Tin-Coated Copper wire (Electrosolder plated surface) Pb Free 4 Ceramic Case Ceramic Al O , SiO 46 1 2 3 2 5 Resistance wire Ni-Cr Alloy Ni-Cr Alloy Cement: Wire wound 6 Filling Materials Quartz mixed sand SiO 2 CHARACTERISTICS Characteristics Limits Test Methods ( JIS C 5201-1 ) 5.2 Natural resistance change per temp. degree centigrade. R2-R1 6 Temperature 350 PPM / C Max. x10 (PPM / C) coefficient <20 400 PPM / C R1(t2-t1) R1: Resistance value at room temperature (t1) R2: Resistance value at room temp. plus 100 C (t2) Dielectric No evidence of flashover, 5.7 Resistors shall be clamped in the trough withstanding mechanical damage, arcing of a 90 metallic V-block and shall be tested at voltage or insulation break down AC potential respectively for 60 +10/ -0 secs. 7.4 Resistance change after continuous 5 cycles for duty shown below: Temperature Resistance change rate is Step Temperature Time cycling (2% + 0.05) Max. with no 1 -55 C 3 C 30 mins evidence of mechanical damage 2 Room temp. 10 ~ 15 mins 3 +155 C 2 C 30 mins 4 Room temp. 10 ~ 15 mins Resistance change rate is 5.5 Permanent resistance change after the Short time (5% + 0.05) Max. with no application of a potential of 2.5 times RCWV overload evidence of mechanical damage for 5 seconds 7.9 Resistance change after 1,000 hours Resistance value R/R operating at RCWV with duty cycle of Load life in Wire-wound 5% (1.5 hourso, 0.5 hourof) in a humidity test humidity chamber controlled at 40 C 2 C and 90 to 95 % relative humidity 7.10 Permanent resistance change after Load life Resistance value R/R 1,000 hours operating at RCWV with duty cycle Wire-wound 5% of (1.5 hours on, 0.5 hour off) at 70 C 2 C 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 Terminal strength No evidence of mechanical Twist test : damage 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 Resistance change rate is 6.4 Permanent resistance change when leads Resistance to (1% + 0.05) Max. with no immersed to 3.2 to 4.8 mm from the body in soldering heat evidence of mechanical damage 350 C 10 C solder for 3 0.5 secs. 6.5 The area covered with a new , smooth clean , shiny and continuous surface free Solderability 95 % coverage Min. from concentrated pinholes. Test temp. of solder : 245 C 3 C Dwell time in solder : 2 ~ 3 seconds XICON PASSIVE COMPONENTS (800) 628-0544 XC-600041 Date Revised: 05/15/17 Specifications are subject to change without notice. No liability or warranty implied by this information. Environmental compliance based on producer documentation.