radial metal film leaded resistors EU features * Lead frame construction * High density assembly and excellent self-standing strength * Marking: Blue body color with color dot marking for resistance and tolerance values * Products with lead-free terminations meet EU RoHS requirements. EU RoHS regulation is not intended for Pb-glass contained in electrode, resistor element and glass. dimensions and construction L Trimming Line D Ceramic Core L (max.) Type .197 (5.0) LF1/8 h LF1/4 t Resistive Electrode Film Cap Insulation Coating Lead Terminal .02 (0.5) .098 (2.5) .200.008 (5.080.2) .300.012 (7.620.3) .378 (9.6) LF1/2 H .100.008 .236.039 (2.540.2) (6.01.0) .295 (7.5) LF1/4L Marking Dimensions inches (mm) D (max.) P H LFF1/4 P RK26B2E t .200 (5.08) .010 (0.25) .217 (5.5) .012 (0.3) .118.020 (3.00.5) .217.020 (5.50.5) .200.012 .197.039 (5.080.3) (5.01.0) .100 (2.54) .285 (7.25) h (max.) ordering information - LF, LFF New Part # LF 1/4 C T Product Code LF LFF Power Rating 1/8: 0.125W 1/4: 0.25W 1/4L: 0.25W 1/2: 0.5W T.C.R. (ppm/C) C: 50 D: 100 L: 200 Termination Surface Material T: Sn T A Taping Packaging T: Taping (1/8W, 1/4W only) Blank: Bulk Ammo (1/8, 1/4 only) For 1/4L, only bulk type is available. 1000 D Nominal Resistance 2%, 5%: 2 significant figures + 1 multiplier "R" indicates decimal on value <10 0.5%, 1%: 3 significant figures + 1 multiplier "R" indicates decimal on value <100 Resistance Tolerance D: 0.5% F: 1% G: 2% J: 5% ordering information - RK26 New Part # RK26 B 2E T Product Code RK26 T.C.R. (ppm/C) B: 350 Power Rating 2E: 0.25W Termination Material T: Sn T A Taping Packaging T: Taping Blank: Bulk Ammo F 1003 Nominal Resistance 2%, 5%: 2 significant figures + 1 multiplier "R" indicates decimal on value <10 0.5%, 1%: 3 significant figures + 1 multiplier "R" indicates decimal on value <100 Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. Tolerance F: 1% G: 2% J: 5% 1/30/11 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com 109 resistors LF, LFF, RK26 resistors LF, LFF, RK26 radial metal film leaded resistors applications and ratings Part Designation T.C.R. (ppm/C) Max. Power Rating D0.5% F1% E-96 E-24,E-96 G2% E-24 J5% E-24 Absolute Maximum Working Voltage 45.3 - 562k 4.7 - 1M 1 - 1M 1 - 1M 200V 400V 10 - 1M 10 - 1M 1 - 1M 1 - 1M 250V 500V Resistance Range () Absolute Maximum Overload Voltage Operating Rated Temperature Ambient Range Temperature C: 50 LF1/8 D: 100 0.125W L: 200 C: 50 LF1/4 LF1/4L 0.25W D: 100 L: 200 +70C C: 50 LF1/2 D: 100 0.5W -55C to +150C 10 - 1M 10 - 1M 1 - 1M 1 - 1M 350V 700V -- 10 - 100k 10 - 100k -- 250V 500V -- 100K - 22M 100K - 33M 100K - 33M 500V 700V L: 200 LFF1/4 0.25W RK26B2E 0.25W C: 50 D: 100 B: 350 -55C to +155C environmental applications Derating Curve 100 % Rated Power 80 60 LFF, RK26 40 LF 20 0 -60 -40 -20 -55 0 80 100 120 140 160 70 150 155 Ambient Temperature (C) 20 40 60 Performance Characteristics Parameter Resistance T.C.R. Overload (Short Time) Resistance to Solder Heat Rapid Change of Temperature Moisture Resistance Endurance @ 70C Requirement R (% + 0.05) Within specified tolerance Within specified T.C.R. LF, LFF: 0.5%, RK26: 1% LF: 0.25%, LFF: 0.5%, RK26: 1% LF, LFF: 0.5% RK26: 1% LF: 1%, LFF: 2%, RK26: 5% LF: 1%, LFF: 2%, RK26: 5% Test Method 25C Room temperature +100C Rated voltage x 2.5 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 LF: -55C (30 minutes)/+25C (10 minutes), +150C (30 minutes)/+25C (10 minutes), 5 cycles; LFF, RK26: -55C (30 minutes)/+25C (10 minutes), +155C (30 minutes)/+25C (10 minutes), 5 cycles 40C 2C, 90-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle 70C 3C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. 110 12/29/10 KOA Speer Electronics, Inc. * 199 Bolivar Drive * Bradford, PA 16701 * USA * 814-362-5536 * Fax: 814-362-8883 * www.koaspeer.com