specification for approval document : srl40000nh revision : a0 page : 1 of 7 1/2w, 0805 low resistance chip resistor (lead / hal ogen free) 1. scope this specification applies to 1.2mm x 2.0mm size 1/ 2w, fixed metal film chip resistors rectangular typ e for use in electronic equipment. 2. type designation rlw2012 4 (1) (2) (3) (4) where (1) series no. (2) power rating 4 = 1/2w (3) resistance value: for example r005 = 0.005 w (4) resistance tolerance: f= 1% g= 2% j= 5% 3. construction and physical dimensions figure 1. structure (no mark) code letter dimensions (mm) l 1.3 0.20 w 2.0 0.20 t 0.50 0.20 a 0.35 0.15 b 0.35 0.15 note: resistive element ( under protection film ) electrode protection film substrate
specification for approval document : srl40000nh revision : a0 page : 2 of 7 4. ratings 4-1 specification power rating* 1/2 w resistance range 0.005 w ~0.030 w resistance tolerance 1% , 2% , 5% temperature coefficient of resistance 0~200ppm/ note*: power rating is based on continuous full load opera tion at rated ambient temperature of 70 . for resistors operated at ambient temperature in ex cess of 70 , the maximum load shall be derated in accordance with the following curve. figure 2 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 operating and storage temperature range -55 to +125 -55 0 70 125 100 50 % percentage of the rated dissipation ambient temperature
specification for approval document : srl40000nh revision : a0 page : 3 of 7 5. characteristics test item condition of test requirements short time overload 5 * rated power for 5 seconds 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 : (1.0%+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 : 2 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
specification for approval document : srl40000nh revision : a0 page : 4 of 7 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 40 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 : (1.0%+0.0005 w ) without mech anical damage such as break
specification for approval document : srl40000nh revision : a0 page : 5 of 7 6. recommended solder pad dimensions note : we recommend there is no circuit design bet ween pads to avoid circuit short
specification for approval document : srl40000nh revision : a0 page : 6 of 7 7. packaging 7-1 dimensions 7-1-1 tape packaging dimensions pre-emptied holes : 150 holes (or 30cm) or more. code letter a b unit : mm dimension 1.45 0.10 2.25 0.10 7-1-2 reel dimensions (plastic reel : correspond with eia j rrv08b) label 105 x 50 13 0.2 28 0.8 9 0.3 13 1.4 50 180 +0 -3 r 1 2 105 unit : mm 60 +1 -0 1.5 + 0 .1 - 0 .0 carrier cavity sprocket hole chip 1.75 0.1 8.0 0.3 3.5 0.05 2.0 0.05 4.0 0.1 pull direction 4.0 0.1 b a 0.6 0.10 0.65 0.10
specification for approval document : srl40000nh revision : a0 page : 7 of 7 7-2 peel force of top cover tape the peel speed shall be about 300 mm / min. the peel force of top cover tape shall be between 0 .1 to 0.7 n. 7-3 numbers of taping 5,000 pieces / reel 7-4 making 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 0.1~0.7 n
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