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| MF, MFS, RK general purpose metal film leaded resistor EU features * Semi-precision metal film resistors * The discharge path resistor is recognized by UL 1676 and c-UL (CAS-C22.2 No.1-M94). (File No. E159326) (RK only) * Meets requirements of MIL-R-22684 * Suitable for automatic machine insertion * MFS two times the power rating of the standard body type * Marking: Blue-gray body color with color-coded bands * Products with lead-free terminations meet EU RoHS and China RoHS requirements dimensions and construction L D Trimming Line Ceramic Core d l Type MFS1/4 L (ref.) .126.008 (3.20.2) .248.02 (6.30.5) .248.02 (6.30.5) .374.04 (9.51.0) .610.02 (15.50.5) .248.02 (6.30.5) .374.04 (9.51.0) .610.04 (15.51.0) Dimensions inches (mm) C (max.) D d (nom.) .133 (3.4) .280 (7.1) .280 (7.1) .437 (11.1) .721 (18.3) .280 (7.1) .437 (11.1) .720 (18.3) .066 +.007 -.004 (1.7 +0.2) -0.1 .091.012 (2.30.3) .091.012 (2.30.3) .138.016 (3.50.4) .217.02 (5.50.5) .091.012 (2.30.3) .138.016 (3.50.4) .217.02 (5.50.5) .018 (0.45) .024 (0.6) .024 (0.6) .024 (0.6) .031 (0.8) .024 (0.6) .031 (0.8) .031 (0.8) l Marking Resistive Film End Cap Lead Wire MF1/4 MFS1/2 Insulation Coating C 1.18.118 (30.03.0) Derating Curve 100 80 % Rated Power 60 40 20 0 -60 -40 -20 -55 Surface Temperature Rise 70 Temperature Rise (C) 60 50 40 30 20 10 0 0 25 50 75 100 MF1/2 MFS1/2,MF1/4, MF1/2 (+2%&+5%) MF1/4 MF1 MFS1/4 MF1/2 MF1 RK1/4 RK1/2 RK1 1.50.118 (38.03.0) 0.94 min. (24.0 min.) 1.50.118 (38.03.0) 0 20 40 60 80 100 120 140 70 Ambient Temperature (C) 160 155 % Rated Power ordering information New Part # MF Type MF MFS RK 1/4 Power Rating 1/4: 0.25W 1/2: 0.50W 1: 1W L T.C.R. E: 25 C: 50 D: 100 L: 200 G: 250 B: 350 C Termination Material C: SnCu T52 Taping and Forming 1/4: T26, T52, VT, VTP, VTE, MT, M, U, M10, M25 1/2: T26, T52, VTP, VTE, M12.5, M15 1: T521 R Packaging A: Ammo R: Reel R20 Nominal Resistance +2%: 2 significant figures + 1 multiplier +0.5%,+1%: 3 significant figures + 1 multiplier "R" indicates decimal on value <100 J Tolerance B: 0.1% C: 0.25% D: 0.5% F: 1% G: 2% J: 5% For further information on packaging, please refer to Appendix C. applications and ratings Minimum Absolute Absolute Resistance Range () Power Operating Part Dielectric T.C.R. Maximum Maximum Rating Temperature Designation Withstanding (ppm/C) (B0.1%) (C0.25%) (D0.5%) (F1.0%) (G2.0%) (J5.0%) Working Overload @ 70C Range Voltage Voltage Voltage E-24 E-96 E-96 E-24 E-96 E-24 E-96 E-24 MFS1/4C MFS1/4D MFS1/4L 0.25W 300V C: 50 D: 100 L: 200 -- -- 49.9 - 562k 10 - 1M -- 2.2 - 2.2M -- 250V 300V -55C to +155C 1/13/09 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 99 resistors MF, MFS, RK resistors general purpose metal film leaded resistor applications and ratings Minimum Absolute Absolute Resistance Range () Power Operating Part Dielectric T.C.R. Maximum Maximum Rating Temperature Designation Withstanding (ppm/C) (B0.1%) (C0.25%) (D0.5%) (F1.0%) (G2.0%) (J5.0%) Working Overload @ 70C Range Voltage Voltage Voltage E-24 E-96 E-96 E-24 E-96 E-24 E-96 E-24 MF1/4C MF1/4D MF1/4E MF1/4L MFS1/2C MFS1/2D MFS1/2L MF1/2C MF1/2D MF1/2E MF1/2L MF1C MF1D MF1E RK1/4D RK1/4L RK1/4B RK1/2D RK1/2L RK1/2B RK1BC RK1/2G* 1W 0.50W 0.50W 500V 700V 1000V 700V 0.25W 500V 1W 700V 0.50W 700V 0.50W 500V 0.25W 500V C: 50 D: 100 E: 25 L: 200 C: 50 D: 100 L: 200 C: 50 D: 100 E: 25 L: 200 C: 50 D: 100 E: 25 D: 100 L: 200 B: 350 D: 100 L: 200 B: 350 B: 350 G: 250 47.5- 1.0M 47.5 - 1.5M 10 - 5.05M 10 - 4.99M 10 - 5.11M 47.5 - 2.0M 47.5 - 2.0M 1.0 - 10 1.0 - 6.81M 0.51 - 10 0.33 - 5.6M 30.1 - 750K 24.3- 750K 30.1 - 750K 30.1 - 1.0M 24.3 - 1.0M 30.1 - 1.0M 10- 2.21M 30.1 - 1.0M 10 - 2.21M 1.0 - 3.01M 30.1 - 1.0M 1.0 - 10 0.51 - 10 10 - 2.2M 0.20 - 2.2M -- -- 250V 500V -- -- -- -- -- 10 - 1M 10 - 2.21M 2.2 - 2.2M -- 350V 700V -- 47.5- 1.0M -- 47.5 - 1.5M -- -- 350V 700V -- -- 47.5 - 2.0M -- -- 7.5 - 2.49M -- 10 - 5.11M -55C to +155C 47.5 - 1.0M 47.5 - 2.49M -- -- -- 3.3M - 33M 100k - 33M -- -- -- 3.3M - 33M 100k - 33M 350V 700V 47.5 - 4.64M 47.5 - 5.11M -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 3.09M - 25M -- 100k - 25M 5.11M - 33M 500V 700V -- 6.2M - 33M 100k - 51M -- 6.2M - 33M 100k - 51M -- 100k - 35M 100k - 51M 700V 1000V 100k - 100M 100k - 100M 1000V 350V 1500V 700V -- -- 1M - 12M * Discharge path resistor environmental applications Performance Characteristics Parameter Resistance T.C.R. Overload (Short Time) Resistance to Solder Heat Dielectric Withstanding Voltage Insulation Resistance Rapid Change of Temperature Moisture Resistance Endurance at 70C Resistance to Solvent Impulse Requirement R (% + 0.05) Limit Typical Within specified -- tolerance Within specified -- T.C.R. Test Method 25C Room temperature, +100C Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less; MFS1/2: Rated voltage x 2 or max. overload voltage for 5 seconds, whichever is less 260C 5C, 10 seconds 1 second or 350C 10C, 3.5 seconds 0.5 second 1 minute 100V, 1 minute -55C (30 minutes), +155C (30 minutes), 5 cycles 40C 2C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 2C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle The resistor shall be immersed for 5 seconds in IPA Discharge from 1000pF capacitor 50 pulses. Internal 2.5 seconds. Charge voltage: 1.25kV (RK1/4), 2.5kV (RK1/2) and 6kV (RK1) 1/09/09 RK: 1%, RK1/2G: 2.5% RK: 0.6%, RK1/2G: 2.5% MF: 0.5% MF: 0.3% RK: 1%; RK1/2G: 5%; RK: 0.5%; RK1/2G: 1% MFS: 0.75%; MF1/4, MFS1/4: 0.4%; MF1/4, MFS1/2, MF1/2: 0.5%, MFS1/2, MF1/2: 0.25% No breakdown Not less than 10,000M -- -- RK,MF: 1%; RK1/2G: 5% MF: 0.3%; RK: 0.5%, RK1/2G: 1% RK: 5%; RK1/2G: 10%; MFS1/4: 1.5%; MF1/4, MFS1/2, MF1/2: 1% RK: 5%; RK1/2G: 10%; MFS1/4: 1.5%; MF1/4, MFS1/2, MF1/2: 1% No abnormality in appearance. Marking shall be easily legible No such abnormalities as short-circuit, burnout, breakdown, etc. RK: 2%; RK1/2G: 5%; MFS1/4: 1%; MF1/4, MFS1/2, MF1/2: 0.75% RK: 2%; RK1/2G: 5%; MFS1/4: 1%; MF1/4, MFS1/2, MF1/2: 0.75% -- -- Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 100 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com |
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