design and speci? cations are each subject to change without notice. ask factory for the current technical speci? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. metal film (thin film) chip resistors, high reliability type ? 15 ? e 1 r 2 a 3 3 4 a 5 e 6 b 7 1 8 0 9 2 10 v 11 metal film chip resistors product code size, power rating type: inch power rating 0.063 w 0.1 w 0.125 w 0.25 w temperature coefficient code r p e h k 10 10 ? / c 15 10 ? / c 25 10 ? / c 50 10 ? / c 100 10 ? / c resistance tolerance code w b d tolerance 0.05 % 0.1 % 0.5 % resistance value consist of three figures for e24 series resistance value. the first two digits are significant figures of resistance and the third one denotes number of zeros following. (example) 10 2:1k packaging methods code x v packaging type t.c.r. 2a : 0402 3a : 0603 6a : 0805 8a : 1206 punched carrier taping 2m mp itch, 10,000 pcs. punched carriertaping 4m mp itch, 5,000 pcs. era2a era3a era6a era8a e 1 r 2 a 3 3 4 a 5 e 6 b 7 1 8 0 9 1 11 v 12 metal film chip resistors product code size, power rating type: inch power rating 0.063 w 0.1 w 0.125 w 0.25 w temperature coefficient code r p e h k 10 10 ? / c 15 10 ? / c 25 10 ? / c 50 10 ? / c 100 10 ? / c resistance tolerance code w b d tolerance 0.05 % 0.1 % 0.5 % resistance value consist of four figures for e96 series resistance value. the first three digits are significant figures of resistance and the fourth one denotes number of zeros following. (example) 1051 : 1.05 k packaging methods code x v packaging type t.c.r. 2a : 0402 3a : 0603 6a : 0805 8a : 1206 punched carrier taping 2m mp itch, 10,000 pcs. punched carriertaping 4m mp itch, 5,000 pcs. era2a era3a era6a era8a 5 10 metal film (thin film) chip resistors, high reliab ility type 0402, 06 03, 0805, 1206 type: era 2a, 3a, 6a, 8a features hi gh reliability ............... stable at hi gh temperature and humidity (85 c 85 %rh rated load, category temperature range : 55 to +155 c) hi gh accuracy .............. smal l resistance tolerance and temperature coef cient of resistance hi gh performance ......... low current noise, excellent linearity reference standard ...... iec 60115-8, jis c 5201-8, eiaj rc-2133b rohs compliant explanation of part numbers e24 series packaging methods please see pages 40 to 43 recommended soldering conditions please see page 46 recommended land pattern please see pages 44 to 45 safety precautions please see page 47 e96 series mar. 2011 01
metal film (thin film) chip resistors, high reliability type design and speci? cations are each subject to change without notice. ask factory for the current technical speci? cations before purchase and/or use. should a safety concern arise regarding this product, please be sure to contact us immediately. ? 16 ? ?0 ?0 0 20 40 60 80 100 120 140 160 0 180 ?0 85 c ?5 c 20 40 60 80 100 rated load (%) ambient temperature ( c) 155 c a b t w l (1) rated co ntinuous working voltag e (rcwv) shall be de ter mined from rcwv= rated power re sis tance values , or limiting element voltage list ed above, wh icheve r less. (2) overload (short-tim e overload) test voltage (sotv) shall be de termined from sotv=2.5 power rating or max. over load volt age list ed above which ev er less. (3) e192 series resist ance values are also available. please contact us for details. ratings power derati ng curve for resistors operated in ambient temperatures above 85 c, powe r rating shall be derated in ac cor dance with the gure on the right. type (inch size) power rating at 85 c (w) limiting element voltage (1) (v) maximum overload voltage (2) (v) type (detail) resistance tolerance (%) t.c.r. ( 10 ? / c) resistance range (3) ( ) category temp erature range (?) era2a (0402) 0.063 25 50 era2akd ?.5 ?00 10 to 46.4 (e24, e96) ?5 to +155 era2aed ?.5 ?5 47 to 100 k (e24, e96) era2aeb ?.1 era3a (0603) 0.1 75 150 era3ahd ?.5 ?0 10 to 46.4 (e24, e96) era3aed ?.5 ?5 47 to 330 k (e24, e96) era3aeb ?.1 era3apb ?.1 ?5 470 to 100 k (e24, e96) era3arb ?.1 ?0 1 k to 100 k (e24, e96) era3arw ?.05 era6a (0805) 0.125 100 200 era6ahd ?.5 ?0 10 to 46.4 (e24, e96) era6aed ?.5 ?5 47 to 1 m (e24, e96) era6aeb ?.1 era6apb ?.1 ?5 470 to 100 k (e24, e96) era6arb ?.1 ?0 1 k to 100 k (e24, e96) era6arw ?.05 era8a (1206) 0.25 150 300 era8ahd ?.5 ?0 10 to 46.4 (e24, e96) era8aed ?.5 ?5 47 to 1 m (e24, e96) era8aeb ?.1 era8apb ?.1 ?5 470 to 100 k (e24, e96) era8arb ?.1 ?0 1 k to 100 k (e24, e96) era8arw ?.05 dimensions in mm (not to scale) construction protective coating alumina substrate electrode (inner) electrode (between) high reliability metal film electrode (outer) type (inch size) dimensions (mm) mass (weight) [g/1000 pcs.] lwa b t era2a (0402) 1.00 ?.10 0.50 +0.10 0.15 ?.10 0.25 ?.10 0.35 ?.05 0.6 era3a (0603) 1.60 ?.20 0.80 ?.20 0.30 ?.20 0.30 ?.20 0.45 ?.10 2 era6a (0805) 2.00 ?.20 1.25 ?.10 0.40 ?.25 0.40 ?.25 0.50 ?.10 4 era8a (1206) 3.20 ?.20 1.60 +0.05 0.50 ?.25 0.50 ?.25 0.60 ?.10 8 ?.05 ?.15 mar. 2011 02
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