low resistance value chip resistors 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. & 1 3 2 + 3 . 4 5 8 6 4 7 ' 8 9 . 10 11 6 12 product code size, power rating type: inch m1w : 2512 1 w power r. code s t type general type wide terminal type resistance tolerance code f j tolerance 1 % 5 % shown by 3 digits or letters. decimal point is expressed by m as 3 m ?=3m0, 10 m ?=10m resistance value packaging methods code u packaging embossed carrier taping 4 mm pitch, 3,000 pcs. thick film chip resistors & 1 3 2 + 3 . 4 5 6 / 7 ' 8 9 10 . 11 7 12 product code size, power rating type: inch m03 : 0603 0.25 w power r. code n type general type resistance tolerance code f j tolerance 1 % 5 % packaging methods code v packaging punched carrier taping 4 mm pitch, 5,000 pcs. thick film chip resistors shown by 3 digits or letters. decimal point is expressed by m as 10 m ?=10m resistance value explanation of part numbers features low resistance values and high precision(1 m to 20 m ) stable resistance not in? uenced by measurement position high heat emission low pro? le, strong body inductance less than 1.0 nh for the metal plate structure rohs compliant low resistance value chip resistors(current sensing resistors) 0603, 2512 type: erjm03 erjm1w & 3 + . 8 & 3 + . packaging methods, land pattern, soldering conditions and safety precautions please see data files aug. 2012 01 1 4
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. low resistance value chip resistors terminal; plated metal resistive body; alloy plate protective coating; resin l w t a 120 100 80 60 40 20 0 C55 C40 0 40 80 70 c 120 160 170 c 200 ambient temperature (c) rated load (%) erjm03 erjm1w 155 c resistive body; alloy plate protective coating; resin terminal; plated metal l w t a b type type (inch size) dimensions (mm) lwt a mass (weight) [g/1000 pcs.] s type erjm1ws (2512) 6.40 0.25 3.20 0.25 0.80 0.30 1.00 0.25 70 t type erjm1wt (2512) 6.40 0.40 2.10 0.30 90 type (inch size) power rating at 70 c (w) standard resistance (m ) resistance tolerance (%) t.c.r. ( 10 -6 /c) category te mperature range (c) circuit board of use erjm03n (0603) 0.25 10 f: 1, j: 5 10 0 C 55 to +155 C erjm1ws (2512) 1 3, 4 350 C 55 to +170 you should use the aluminum substrate when the added watt age exceeds 0.5 w. 5, 6, 10, 15, 20 100 erjm1wt (2512) 1, 1.5 350100 2, 3, 4 10050 power derating curve for resistors operated in ambient temperatures above 70 c, power rating shall be derated in accordance with the ? gure on the right. ratings ? please contact the factory for other values and the range dimensions in mm (not to scale) construction type (inch size) dimensions (mm) mass (weight) [g/1000 pcs.] lwt a b erjm03n (0603) 1.60 0.15 0.8 0.15 0.35 0.10 0.45 0.15 0.65 0.15 1.7 & 3 + . 8 & 3 + . & 3 + . 8 & 3 + . aug. 2012 01 1 5
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