Metal Film Resistors Metal Film Resistors Type: (0.25 W) EROS2 (0.25 W) ERO25 Features ...... Performance, Reliability Low T.C.R. and noise, high reliability ............. Automatic insertion Taping style for automatic inserting machine ............................... Marking 5 color code marking ......... Reference Standards IEC 60115-2, JIS C 5201-2 Explanation of Part Numbers 1 2 3 4 5 6 7 8 9 10 11 12 E R O S 2 C H F 1 0 0 2 Resistance Value Product Power Rating Special Feature and Temperature Resistance Code at 70 C Amb. Cut & Formed Style Coefficient Tolerance The first three digits are 6 significant figures of resistance 10 /C(ppm/C) Metal Film S2 0.25 W C Standard D 0.5 % and the 4th digit denote number Resistors 50 25 0.25 W Taped & Box H F 1% of zeros following. P (52 mm) Decimal point is expressed Taped & Box (26 mm) T by R as 97.6 = 97R6. Construction Dimensions in mm (not to scale) HL H fD Lead wire Metal lm fd 1st significant figure Ceramic core, high thermal conductivity Insulative coating 2nd significant figure Resistance tolerance 3rd significant figure Multiplier Standard Quantity : 2000 pcs. Spiraling Mass Dimensions (mm) Marking Type (Weight) L fD fdH mg/pc. 0.20 +0.20 0.05 3 EROS2C 3.20 1.70 0.45 30 0.10 107 End cap 0.50 0.50 0.05 3 ERO25C 6.30 2.30 0.60 30 228 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. Feb. 2006Marking Metal Film Resistors Ratings Resistance Power Limiting Element Maximum Dielectric T.C.R. Resistance Resis- Range Rating Voltage Overload Withstanding 6 Type (1) (2) 10 /C Tolerance tance ( ) at 70 C (Maximum RCWV) Voltage Voltage (ppm/C) (%) Value (W) (V) (V) (VAC) min. max. F(1) E24 EROS2 0.25 250 500 300 50 10 1 M D(0.5) E96 F(1) E24 ERO25 0.25 250 500 500 50 10 1 M D(0.5) E96 (1) Rated Continuous Working Voltage (RCWV) shall be deter mined from RCWV= = Power Rating Resistance Value, or Limiting Element Voltage (maxi mum RCWV) list ed above, whichever less. (2) Overload (Short-time Overload) Test Voltage (SOTV) shall be determined from SOTV=2.5 Power Rating or max. Overload Voltage listed above which ev er less. 120 Power Derating Curve 55 C 70 C For resistors operated in ambient temperatures above 100 70 C, power rating shall be derated in ac cor dance 80 with the gure on the right. 60 40 20 150 C 0 60 40 20 0 20 40 60 80 100 120 140 160 180 Ambient Temperature (C) Shape and Packaging Axial taping type 61 3.2 min. L 0.5 max. L fD P f 0 Shape d WW max. max. 0.3 0.5 max. +1 3.4 1.9 0.45 5.0 26 41.5max. 1 0 2 3.4 1.9 0.45 5.0 521 64.50.5 +1 3 6.5 2.5 0.6 5.0 260 41.5max. 6.5 2.5 0.6 5.0 521 64.50.5 4 0 L L 1 2 L1L2 <1.0 0.8 max. W Cumulative 2502 mm by 50 pitch W 0 Size of box Std. Qty. Flat box Packaging Shape Type Part Numbers (pcs./box) a b c (mm) 26 mm Axial 1 Metal Film R EROS2THO 5000 52 85 255 taping b 52 mm Axial 2 Metal Film R EROS2PHO 5000 78 85 255 taping 26 mm c Axial Metal Film R ERO25THO 4000 52 95 255 3 taping 52 mm a Axial Metal Film R ERO25PHO 2000 78 58 255 4 taping 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. Feb. 2006 fd fD 1 max. P P Rated Load (%)