Metal (Oxide) Film Resistors Metal (Oxide) Film Re sis tors Type: (Small size) ERG(X)S (0.5 W, 1 W, 2 W, 3 W, 5 W) (Anti-heat conducting for PCB) ERG(X)F (1 W, 2 W, 3 W, 5 W) Features Miniaturized 50 % smaller compared to existing models Non- ammable High Reliability Automatic Insertion Reference Standards IEC 60115-2, IEC 60115-4, JIS C 5201-4, EIAJ RC-2138 Explanation of Part Numbers Ex.1 : ERX type 1 2 3 4 5 6 7 8 9 10 11 12 E R X 2 SZ J W 1 R 0E Power Rating at 70 C Resistance Product Code Style Specification Resistance Value Tolerance 12 0.5 W Metal Film Small size The first two digits are significant figures ERX S J 5% Resistors 1 1W 0.5Wto5W of resistance and the third one denotes G 2% 2 2W Small size Anti-heat number of zeros following. 3 3W conducting type Decimal point is expressed by F 5 5W (Fe lead wire) (Ex.) 1R0 : 1.0 1Wto5W Z is added according to resistance. The matrix of forming and packaging is as shown in the table below. Forming & Taping matrix Resistance Resistance Value Range ( ) Type Code Forming / Packaging Tolerance ERX SZ ERX S 12S 1S 2S 3S 5S 1F 2F 3F 5F 5% 0.10 to 0.18 0.20 to 9.1 Straight lead wire type ERX12S 2% 0.10 to 0.91 1.0 to 9.1 P Cut & Forming type ERX1S 5% 0.10 to 0.18 0.20 to 9.1 V Axial taping type (Straight lead) ERX1F 2% 0.10 to 0.91 1.0 to 9.1 UV Axial taping type (Stand off) ERX2S 5% 0.10 to 0.20 0.22 to 9.1 E Radial taping type (E type) ERX2F 2% 0.10 to 0.91 1.0 to 9.1 WE Radial taping type (WE type) ERX3S 5% 0.10 to 0.20 0.22 to 9.1 H Cut & Forming type ERX3F 2% 0.10 to 0.91 1.0 to 9.1 SE Radial taping type (SE type) ERX5S 5% 0.33 to 9.1 ERX5F 2% 1.0 to 9.1 The above example 1 shows a small metal lm resistor, 2 W power rating, resistance value of 1.0 , tolerance 5 %, and package of radial taping. Ex.2 : ERG type 1 2 3 4 5 6 7 8 9 10 11 12 E R G 2SWJ 1 0 3E Resistance Value Product Code Power Rating at 70 C Style Specification Resistance Tolerance The first two digits are significant figures Metal Oxide 12 0.5 W Small size S ERG J 5% of resistance and the third one denotes Film Resistors 1 1W 0.5Wto5W G 2% number of zeros following. 2 2W Small size Anti-heat Decimal point is expressed by 3 3W conducting type F (Ex.) 103 : 10 k 5 5W (Fe lead wire) 1Wto5W The matrix of forming and packaging is as shown in the table below. Forming & Taping matrix Code Forming / Packaging 12S 1S 2S 3S 5S 1F 2F 3F 5F Straight lead wire type P Cut & Forming type V Axial taping type(Straight lead) UV Axial taping type(Stand off) E Radial taping type(E type) WE Radial taping type(WE type) H Cut & Forming type SE Radial taping type(SE type) The above example 2 shows a small metal oxide lm resistor, 2 W power rating, resistance value of 10 k , tolerance 5 %, and package of radial 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. 2008Metal (Oxide) Film Resistors Construction Dimensions in mm (not to scale) Lead wire k L k D S type : Cu wire High reliable metal oxide lm (ERG) ( ) F type : Fe wire d High reliable metal plating lm (ERX) Ceramic core Mass Dimensions (mm) (High ther mal conduc tiv i ty) Type (Weight) L D k d g/pc. Spira l ling +0.65 +0.5 3.0 0.05 ERG(X)12S 6.35 0.35 2.3 0.3 30.0 0.65 0.26 turns Marking 0.05 ERG(X)1S 0.65 +1.50 0.5 3.0 9.00 2.8 30.0 1.00 0.33 0.05 ERG(X)1F 0.80 ERG(X)2S +1.50 1.0 3.0 0.05 12.00 4.0 30.0 0.80 0.66 1.00 ERG(X)2F Flame and solvent retardant ERG(X)3S 1.50 1.0 3.0 0.05 15.00 5.5 38.0 0.80 1.47 ERG(X)3F ERG(X)5S 1.50 1.0 3.0 0.05 End cap 24.00 8.0 38.0 0.80 3.54 ERG(X)5F Ratings Limiting Maximum Dielectric Power Element Maximum Resistance Intermittent With- Res. T.C.R. Standard (5) Rating Voltage Overload Range ( ) 6 Type (2) Overload stand ing Tol. 10 /C Resistance at 70 C (Maximum Voltage (3) (4) (1) Voltage Voltage (%) (ppm/C) Value (W) RCWV) (V) (6) (V) (VAC) min. max. (V) G (2) 1 22 k ERG(X)12S 0.5 300 600 600 350 350 E24 J (5) 0.2 47 k ERG(X)1S G (2) 1 68 k 1 350 600 600 350 350 E24 ERG(X)1F J (5) 0.2 100 k G (2) 1 100 k ERG(X)2S 2 350 700 1000 600 350 E24 ERG(X)2F J (5) 0.22 100 k G (2) 1 100 k ERG(X)3S 3 350 700 1000 1000 300 E24 ERG(X)3F J (5) 0.22 100 k ERG(X)5S G (2) 1 100 k 5 500 1000 1500 1000 200 E24 ERG(X)5F J (5) 0.33 100 k (1) Rated Continuous Working Voltage (RCWV) shall be determined (4) Resistance tolerance is of use besides range listed, please inquire. from RCWV= Power Rating Resistance Value or Limiting Element (5) Resistance Range Type ERG : >10 Voltage (max. RCWV) listed above whichever less. Type ERX : <9.1 (2) Overload (Short-time Overload) Test Voltage (SOTV) shall be de- (6) As for the low resistance value range, is given to the part termined from SOTV=2.5 Power Rating or max. Overload Voltage number. (Refer to the explanation of part numbers.) listed above whichever less. (3) Intermittent Overload Test Voltage (IOTV) shall be determined from Z type is non standard resistance values. IOTV=4.0 Power Rating or max. Intermittent Overload Voltage listed above whichever less. Code Type Res.Tol. Res. Value Range Code Type Res.Tol. Res. Value Range 2 % 0.1 to 0.91 2 % 0.1 to 0.91 2S 12S 2F 5 % 0.1 to 0.18 5 % 0.1 to 0.2 Z Z 2 % 0.1 to 0.91 2 % 0.1 to 0.91 1S 3S 1F 3F 5 % 0.1 to 0.18 5 % 0.1 to 0.2 Power Derating Curve 120 55 C 70 C For resistors operated in ambient temperatures above 100 70 C, power rating shall be derated in accordance 80 ERG(X)1S, 1F with the gure on the right. ERG(X)2S, 2F 60 ERG(X)12S ERG(X)3S, 3F 40 ERG(X)5S, 5F 20 235 C 130 C 0 60 40 20 0 20 40 60 80 100 120 140 160 180 200 220 240 Ambient Temperature (C) 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 Rated Load (%)