specification for approval document : sm6c0000nh revision : a1 page : 1 of 7 1w, 2512, sc type low resistance chip resistor (lea d / halogen free) 1. scope this specification applies to 3.2mm x 6.4mm size 1w , fixed metal foil with ceramic carrier current sensing resistors used in electronic equipment. 2. type designation rl32646c C C (1) (2) (3) where (1) series no. (2) resistance value : for example : r003 = 3m w r050 = 50m w (3) tolerance : f= 1% g= 2% j= 5% 3. type designation figure 1. construction and dimensions dimensions (mm) code letter 3264 l 6.35 0.25 w 3.20 0.20 a 0.90 0.25 t 3m w ~ 5m w ,7m w 6m w ,r 8m w 1.05 0.15 0.80 0.15 t a a l r010 w
specification for approval document : sm6c0000nh revision : a1 page : 2 of 7 4. specification characteristics feature power rating* 1w resistance value 3 ~ 100m w temperature coefficient of resistance 100ppm/ operation temperature range -55 ~ +170 resistance tolerance 1% , 2% , 5% insulation resistance over 100m w maximum working voltage (v) ( p*r) 1/2 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. - 55 100 70 0 1 70 rated load(%) ambient temperature( ) figure 2 . power temperature derating cur v e
specification for approval document : sm6c0000nh revision : a1 page : 3 of 7 5. reliability performance test item condition of test requirements short time overload 2.5 x 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. thermal shock -55 ~150 1,000 cycles, 15 min at each extreme condition refer to jis c 5201-1 4.19 d r (0.5% + 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 (0.5% + 0.0005 w ) without distinct damage in appearance resistance to soldering heat dipped into solder at 270 5 for 20 1 seconds refer to jis c 5201-1 4.18 d r (0.5% + 0.0005 w ) without distinct damage in appearance load life rated voltage for 1.5hours followed by a pause 0.5hour at 70 3 cycle repeated 1,000 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 30 minutes off. cycle repeated 1,000 hours refer to jis c 520 1 - 1 4.24 d r (1.0% + 0.0005 w ) without distinct damage in appearance high temperature exposure kept at 170 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
specification for approval document : sm6c0000nh revision : a1 page : 4 of 7 test item condition of test requirements 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 mechanical damage such as break substrate bending glass-epoxy board thickness : 1.6 mm bending width : 2mm between the fulcrums : 90mm refer to jis c 5201-1 4.33 d r (0.5% + 0.0005 w ) without mechanical damage such as break
specification for approval document : sm6c0000nh revision : a1 page : 5 of 7 6. recommended solder pad dimensions w l d 3264 4.00 8.00 2.00 unit : mm note : we recommend there is no circuit design betw een pads to avoid circuit short cu trace w l d sensing trace
specification for approval document : sm6c0000nh revision : a1 page : 6 of 7 7. packaging 7-1 dimensions 7-1-1 tape packaging dimensions 7-1-2 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 2.0 0.05 cavity 4.0 0.1 0.3 max. 1.5 max. b a a = 3.60 0.20 b = 6.80 0.20 1.5 0.1 +0.1 -0.0 1.5 1.75 0.10 pulling direction 4.0 0.1 12.0 0.3 unit : mm 5.50 0.05 feed forward hole
specification for approval document : sm6c0000nh revision : a1 page : 7 of 7 7-2 peel strength of top cover tape the peel speed shall be about 300mm/min. the peel force of top cover tape shall between 0.1 to 0.7n 7-3 number of taping 2,000 pieces / reel 7-4 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 1 6 5 ~ 1 8 0 carrier tape 0.1 ~ 0.7n top cover tape
|
