MF, MFS, RK general purpose metal film leaded resistor EU s r features o t s • Semi-precision metal film resistors si e • Meets requirements of MIL-R-22684 r • Suitable for automatic machine insertion • MFS two times the power rating of the standard body type • Products with lead-free terminations meet EU RoHS and China RoHS requirements • AEC-Q200 Qualified: MF1/4, MFS1/4, MFS1/2 dimensions and construction Dimensions inches (mm) Type L (ref.) C (max.) D d (nom.) l* L l D Trimming Line Ceramic Core .066 +.007 MFS1/4 .126±.008 .133 -.004 .018 d (3.2±0.2) (3.4) (1.7 +0.2) (0.45) -0.1 .248±.02 .280 .091±.012 .024 MF1/4 (6.3±0.5) (7.1) (2.3±0.3) (0.6) Marking Resistive End Lead .248±.02 .280 .091±.012 .024 1.10±.118 Film Cap Wire MFS1/2 (6.3±0.5) (7.1) (2.3±0.3) (0.6) (28.0±3.0) Insulation Coating C MF1/2C .354±.04 .437 .138±.016 .024 MF1/2D (9.0±1.0) (11.1) (3.5±0.4) (0.6) Derating Curve Surface Temperature Rise MF1/2L .354±.04 .437 .138±.016 .024/.031 (9.0±1.0) (11.1) (3.5±0.4) (0.6)/(0.8) 100 70 MFS1/2 .610±.02 .721 .217±.02 .031 1.50±.118 MF1 % Rated Power486000 mperature Rise (°C)5432600000 MMMMFFFF11S1// 124/ 4 RRKK11//24 (..(1326574.3.485±±±±00...005.542)) (..(1427838.1.370)) ..10((2539..8135±±±±..0000..3511))62 ..((000022..8644)) ((023.489..040 ±mm3ii.nn0..)) 20 Te10 (9.5±1.0) (11.1) (3.5±0.4) (0.6) 0 0 .610±.04 .720 .217±.02 .031 1.50±.118 -60 -40 -20 0 20 40 60 80 100 120 140 160 0 25 50 75 100 RK1 -55 70 155 (15.5±1.0) (18.3) (5.5±0.5) (0.8) (38.0±3.0) Ambient Temperature % Rated Power (°C) * Lead length changes depending on taping and forming. ordering information MF 1/4 L C T52 8 R R20 J Power Termination Taping and Lead Nominal Type T.C.R. Packaging Tolerance Rating Material Forming Diameter Resistance MF 1/4: 0.25W E:±25 C:SnCu 1/4:T26, T52, VT, MF1/2L: T52 A: Ammo +2%: 2 significant B:±0.1% MFS 1/2: 0.50W C:±50 VTP, VTE, MT, & Bulk Only: R: Reel figures + 1 multiplier C:±0.25% RK 1: 1W D:±100 M, U, M10, 6: 0.6mm +0.5%,+1%: D:±0.5% M12.5 3 significant figures L: ±200 8: 0.8mm F: ±1% 1/2: T26, T52, + 1 multiplier Fpaocr kfuargtihnegr, ipnlfeoarmsea trieofne ro tno GB::±±235500 VMT1P2,. 5V, TME1, 5 Bo&tl hapenarkcs:k Asaiglzliensg “dRe”c iimndailc aotne sv alue GJ:: ±±25%% Appendix C. 1: T521 <100Ω applications and ratings Minimum Absolute Absolute Power Resistance Range (Ω) Operating Part Dielectric T.C.R. Maximum Maximum Rating Temperature Designation Withstanding (ppm/°C) (B±0.1%) (C±0.25%) (D±0.5%) (F±1.0%) (G±2.0%) (J±5.0%) Working Overload @ 70°C Range Voltage E-96 E-96 E-24 E-192 E-24 E-96 E-24 E-24 Voltage Voltage MFS1/4C C: ±50 -55°C 0.25W 300V — — 49.9 - 10 - 1M — — 250V 500V to MFS1/4D D: ±100 562k +155°C Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 8/08/18 169 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

MF, MFS, RK general purpose metal film leaded resistor r e sis applications and ratings (continued) t o Minimum Absolute Absolute r Power Resistance Range (Ω) Operating s Part Dielectric T.C.R. Maximum Maximum Rating Temperature Designation Withstanding (ppm/°C) (B±0.1%) (C±0.25%) (D±0.5%) (F±1.0%) (G±2.0%) (J±5.0%) Working Overload @ 70°C Range Voltage E-96 E-96 E-24 E-192 E-24 E-96 E-24 E-24 Voltage Voltage MF1/4C C: ±50 — — 10- 2.21M 10 - 2.21M — MF1/4D 0.25W 500V D: ±100 — — — 250V 500V MF1/4L L: ±200 — — — 1.0 - 10 0.51 - 10 MFS1/2C C: ±50 0.50W 500V — — 10 - 1M 10 - 2.21M 10 - 2.2M — 350V 700V MFS1/2D D: ±100 MF1/2C C: ±50 — — 10 - 4.99M 10 - 5.05M — MF1/2D 0.50W 700V D: ±100 — — 10 - 5.11M — 350V 700V MF1/2L L: ±200 — — — 1.0 - 10 0.51 - 10Ω -55°C MF1C C: ±50 47.5 - 1.0M 47.5 - 2.49M to 10 - 5.11M 1.0 - 6.81M — — +155°C MF1D 1W 700V D: ±100 — — 350V 700V MF1E E: ±25 47.5 - 1.0M 47.5 - 2.49M 47.5 - 4.64M 47.5 - 5.11M — — RK1/4D D: ±100 — — — 3.09M - 25M — — RK1/4L 0.25W 500V L: ±200 — — — — 3.3M - 33M 3.3M - 33M 500V 700V RK1/4B B: ±350 — — — 100k - 25M 100k - 33M 100k - 33M RK1/2D D: ±100 — — — 5.11M - 33M — — RK1/2L 0.50W 700V L: ±200 — — — — 6.2M - 33M 6.2M - 33M 700V 1000V RK1/2B B: ±350 — — — 100k - 35M 100k - 51M 100k - 51M RK1BC 1W 1000V B: ±350 — — — 100k - 51M 100k - 100M 100k - 100M 1000V 1500V RK1/2G* 0.50W 700V G: ±250 — — — — — 1M - 12M 350V 700V * Discharge path resistor environmental applications Performance Characteristics Requirement ∆R ±(% + 0.05Ω) Parameter Limit Typical Test Method Within specified Resistance — 25°C tolerance Within specified T.C.R. — Room temperature, +100°C, RK: +25°C/+125°C T.C.R. RK: ±1%, RK1/2G: ±2.5% RK: ±0.6%, RK1/2G: ±1% Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less; Overload (Short Time) MF: ±0.5% MF: ±0.3% MFS1/2: Rated voltage x 2 or max. overload voltage for 5 seconds, whichever is less RK: ±1%; RK1/2G: ±5%; RK: ±0.5%; RK1/2G: ±1% 260°C ± 5°C, 10 seconds ± 1 second or Resistance to Solder Heat MFS: ±0.75%; MF1/4, MFS1/4: ±0.4%; MF1/4, MFS1/2, MF1/2: ±0.5%, MFS1/2, MF1/2: ±0.25% 350°C ± 10°C, 3.5 seconds ± 0.5 second Dielectric Withstanding Voltage No breakdown — 1 minute Insulation Resistance Not less than 10,000MΩ — 100V, 1 minute RK,MF: ±1%; MF: ±0.3%; RK: ±0.5%, Rapid Change of Temperature -55°C (30 minutes), +155°C (30 minutes), 5 cycles RK1/2G: ±5% RK1/2G: ±1% RK: ±5%; RK1/2G: ±10%; RK: ±2%; RK1/2G: ±5%; Moisture Resistance MFS1/4: ±1.5%; MF1/4, MFS1/4: ±1%; MF1/4, 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle MFS1/2, MF1/2: ±1% MFS1/2, MF1/2: ±0.75% RK: ±5%; RK1/2G: ±10%; RK: ±2%; RK1/2G: ±5%; Endurance at 70°C MFS1/4: ±1.5%; MF1/4, MFS1/4: ±1%; MF1/4, 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle MFS1/2, MF1/2: ±1% MFS1/2, MF1/2: ±0.75% No abnormality in Resistance to Solvent appearance. Marking — The resistor shall be immersed for 5 seconds in IPA shall be easily legible No such abnormalities Discharge from 1000pF capacitor 50 pulses. Internal 2.5 seconds. Impulse as short-circuit, burnout, — breakdown, etc. Charge voltage: 1.25kV (RK1/4), 2.5kV (RK1/2) and 6kV (RK1) Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 2/20/17 170 KOA Speer Electronics, Inc. • 199 Bolivar Drive • Bradford, PA 16701 • USA • 814-362-5536 • Fax: 814-362-8883 • www.koaspeer.com

Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: K OA Speer: MFS1/4DLT52R1004F MF1/4CLT52R4992F MF1/2DLT52R2213F MF1/2DLT52R2212F MF1/2CLT52R2201F MF1/4DL3324F MF1/4CLT52R4990F MF1/4DL33R2F MF1/4CL33R2F MF1/4DL3163F MF1/4CL3322F MF1/4DLT52R1152F MF1/4CL3321F MF1/4DL3322F MF1/4DL3162F MF1/4DL3161F MF1/4DLT52R1151F MF1/2DL3162F MF1/2CL3162F MF1/2DL3321F MF1/2DL33R2F MF1/2DL3322F MF1/2CL3321F MF1/2CL33R2F MF1/4CL3162F MF1/2CL3322F MF1/2CLT52R1473F MF1/2DLT52R2493F MF1/2DL2801F MF1/4DLT52R4750F MF1/4DLT52R4752F MF1/4DLT52R4751F MF1/2DL2210F MF1/2CL2210F MF1/4DLT52R4754F MF1/4CL2210F MF1/4CL2801F MF1/2CLT52R5101F MF1/4DL2R20F MF1/4DL2210F MF1/2CLT52R6982F MFS1/4DLT52R1001F MF1/4CL2214F MF1/2CL2214F MF1/4DL2801F MFS1/4DLT52R1002F MF1/4DCT52R3011F MF1/2DL2214F MF1/4DL2214F MF1/4DLT52R4753F MF1/2CLT52R6980F MF1/2CLT52R6981F MF1/4DLT26A4642F MFS1/4DLT52R1003F MF1/4DLT52R1R00F MF1/2CL2801F MF1/2DLT52R2491F MF1/4CLT52R1022F MF1/4DL2213F MF1/4DCT52R3013F MF1/2DLT52R2492F MF1/2DL2212F MF1/2CL2212F MF1/2DL2803F MF1/4DL5603F MF1/2CL2803F MF1/2CLT52R4532F MF1/4CL2213F MF1/2CL2213F MF1DLT521R27R4F MF1/2DL2213F MF1/4CLT52R10R0F MF1/4CLT52R1023F MF1/4DL2212F MF1/4DL2R21F MF1/4DL2211F MF1/2DLT52R2490F MF1/4CL2802F MF1/4CL2212F MF1/4DL2802F MF1/2CLT52R2001F MF1/4DLT26A3652F MF1/4CL2803F MF1/2DL2802F MF1/2DL2211F MF1/2CL2802F MF1/2CL2211F MF1/4CL2211F MF1/4DL2803F MF1/2CLT52R1471F MF1/4DLT52R3603F MF1/4DLT52R1R82F MF1/4CL51R1F MF1/4DL51R1F MF1/4DCT52R1243F MF1/2DLT52R2371F MF1/2CLT52R68R1F MF1/2DLT52R2370F MF1/4DLT52R2874F MF1/2CLT52R1433F