page 1 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 3/4w, 2010 low resistance chip resistor 1. scope this specification applies to 2.5mm x 5.0mm size 3/ 4w, fixed metal film chip resistors rectangular type for use in electronic equipment. 2. type designation rl2550 l - ???? ? (1) (2) (3) (4) where (1) series no. (2) l = l type (3) resistance value : for example - - r005 = 5m w r050 = 50m w (4) resistance tolerance f = 1% g = 2% j = 5% 3. outline designation and marking 3-1 outline designation (1) substrate alumina 96% (2) resistor ni alloy (3) terminals sn (on cu ) (4) protection coat heat resistive epoxy resin (5) marking epoxy resin dimensions (mm) code letter rl2550 l 5.0 0.20 w 2.5 0.20 a 1.00 0.15 t ( 3m w ) 0.80 0.15 (3m w ) 0.95 0.15 figure 1. construction and dimensions (1) (2) (3) (4) l a a r005 w t (bottom view) (5)
page 2 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 3-2 marking resistance value is marked on the top surface. ex.) 5m w ? r005 47m w ? r047 4. ratings 4-1 specification power ratings* 3/4w resistance value 4 ~ 50m w temperature coefficient of resistance ( 10m w ) 100ppm/ (>10m w ) 50ppm/ resistance tolerance 1% , 2% , 5% insulation resistance over 100m w maximum working voltage (v) ( p*r) 1/2 note * : power ratings is based on continuous full load oper ation at rated ambient temperature of 70 . for resistors operated at ambient temperature in excess of 70 , the maximum load shall be derated in accordance with the follow ing curve. figure 2. ? power temperature derating curve 4-2 rated voltage the rated voltage shall be determined by the follow ing expression. r p v = where v ? rated voltage (v) r ? nominal resistance value ( w ) p ? rated dissipation (w) 4-3 operation and storage temperature range -55 to +125 0 70 100 125 -55 ambient temperature( ) rated load(%)
page 3 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 5. schematic diagram. measurement point measurement point schtemtic diagram i v v current terminal voltage terminal i r047 i v
page 4 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 6. characteristics test item condition of test requirements short time overload 2.5 * rated voltage for 5 secon ds refer to jis c 5201-1 4.13 d r : (0.5%+0.0005 w ) without significant damage by flashover ( spark, arching ), burning or breakdown etc. insulation resistance the resistor shall be cramped in the metal block and tested , as shown below. test voltage : 100 15v dc for 1 minute refer to jis c 5201-1 4.6 mounting condition g. between electrode and protection film 100m w or over between electrode and substrate 1,000m w or over voltage proof the voltage : 100v ac (rms.) for 1 minute refer to jis c 5201-1 4.7 d r : (0.5%+0.0005 w ) without damage by flashover, fire or breakdown, as shown below. thermal shock -55 ~125 5 cycles, 15 min at each extreme condition refer to jis c 5201-1 4.19 d r : (1.0%+0.0005 w ) without distinct damage in appearance low temperature storage kept at -55 , 1,000 hours refer to jis c 5201-1 4.23.4 d r : (1.0%+0.0005 w ) without distinct damage in appearance high temperature exposure kept at 125 for 1,000 hours refer to jis c 5201-1 4.23.2 d r : (1.0%+0.0005 w ) without distinct damage in appearance solderability temperature of solder : 245 5 immersion duration : 3 0.5 second refer to jis c 5201-1 4.17 uniform coating of solder cover minimum of 95% surface being immersed resistance to soldering heat dipped into solder at 270 5 for 10 1 seconds refer to jis c 5201-1 4.18 d r : (0.5%+0.0005 w ) without distinct deformation in appearance
page 5 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor test item condition of test requirements load life rated voltage for 1.5 hours followed by a pause 0.5 hour at 70 2 . cycle repeated 1000 hours refer to jis c 5201-1 4.25 d r : (1.0%+0.0005 w ) without distinct damage in appearance damp heat with load 60 2 with relative humidity 90% to 95%. d.c. rated voltage for 1.5 hours on and 30 minutes off. cycle repeated 1,000 hours refer to jis c 5201-1 4.24 d r : (1.0%+0.0005 w ) without distinct damage in appearance mechanical shock 100 gs for 6milliseconds. 5 pulse s refer to jis c 5201-1 4.21 d r : (0.5%+0.0005 w ) without mech anical damage such as break bending test glass-epoxy board thickness : 1.6mm bending width : 2mm between the fulcrums : 90mm refer to jis c 5201-1 4.33 d r : (0.5%+0.0005 w ) without mech anical damage such as break
page 6 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor c d b a b' voltage sense line current line solder resist area land pattern 0.50mm 7. recommend land pattern a b b c d 3.1 2.75 1.4 7.0 3.05 unit : mm
page 7 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 8. packaging 8-1 dimensions 8-1-1 tape packaging dimensions 2.80 0.10 1.050.10 0.230.10 5.35 0.10 4.0 0.10 4.0 0.10 2.0 0.05 pulling direction 12.0 0.30 1.75 0.10 5.50 0.05 unit : mm 1.55 0.05 1.500.1 8-1-2 reel dimensions 13.00.5 178.02.0 60.20.5 13.21.5 2.00.5 + 0 . 5 - 0 4 . 0 0 16.00.2 unit : mm
page 8 of 8 title : document no. sr550000n page rev. a 2 unless otherwise specified tolerances on x = x.x = x.xx = angles hole dia. scale x unit x approved by drawn by connie 4/3/13 designed by checked by this drawings and specifications are the property o f delta electronics, inc. and shall not be reproduced or used as the basis fo r the manufacture or sale of apparatus or devices without permission ?_?I??? ?_?I??? ?_?I??? ?_?I??? delta electronics, inc . the engineering spec. for 3/4w 2 010 low resistance chip resistor 8-2 peel strength of top cover tape the peel speed shall be about 300mm/minute the peel force of top cover tape shall between 0.1 to 0.7n 8-3 number of taping 2,000 pieces / reel 8-4 label marking the following items shall be marked on the reel. (1) type designation (2) quantity (3) manufacturing date code (4) manufacturers name (5) the country of origin 165 ~ 180 top cover tape carrier tape 0.1 ~ 0.7n
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