MF, MFS, RK general purpose metal film leaded resistor EU features • Semi-precision metal film resistors • Meets requirements of MIL-R-22684 • 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 s dor et ds dimensions and construction Type L (ref.) C (mDaimx.e)nsionsD inches d(m (mno)m.) l* leaesi r .126 +.02 .066 +.016 D Trimming Line L Ceramic Core l MFS1/4 (3.2 +-0.0.50)8 .(133.43) (1.7 +-0.0.40)4 (.00.1458) -0.2 -0.1 d .248±.02 .280 .091±.012 .024 1.10±.118 MF1/4 (6.3±0.5) (7.1) (2.3±0.3) (0.6) (28.0±3.0) .248±.02 .280 .091±.012 .024 MFS1/2 Marking Resistive End Lead (6.3±0.5) (7.1) (2.3±0.3) (0.6) Film Cap Wire Insulation Coating MF1/2C .354±.04 .437 .138 +-.0.0126 .024 1.10 +-..001126 C MF1/2D (9.0±1.0) (11.1) (3.5 +0.4) (0.6) (28.0 +3.0) -0.5 -4.0 .354±.04 .437 .138±.016 .024/.031 1.10±.118 Derating Curve Surface Temperature Rise MF1/2L (9.0±1.0) (11.1) (3.5±0.4) (0.6)/(0.8) (28.0±3.0) 100 70 MFS1/2 .610±.02 .721 .217±.02 .031 1.50 +-..001126 % Rated Power486000 mperature Rise (°C)5432600000 MMMMFFFF11S1// 124/ 4 RMKF11/4 (..(1326574.3.485±±±±00...005.542)) (..(1427838.1.370)) ..10((2539..8135±±±±..0000..3511))62 ..((000022..8644)) (0(23.498..040 mm-+53.ii0.nn0)..) 20 Te10 RK1/2 (9.5±1.0) (11.1) (3.5±0.4) (0.6) 0 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 0 25 50 75 100 .610±.04 .720 .217±.02 .031 1.50±.118 -55 70 155 RK1 Ambient Temperature % Rated Power (15.5±1.0) (18.3) (5.5±0.5) (0.8) (38.0±3.0) (°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. 11/27/18 163 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 applications and ratings (continued) 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 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 resle MF1/2C C: ±50 — — 10 - 5.05M 10 - 4.99M — isad MF1/2D 0.50W 700V D: ±100 — — 10 - 5.11M — 350V 700V toed MF1/2L L: ±200 — — — 1.0 - 10 0.51 - 10Ω r -55°C s 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. 2/20/17 164 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