LF NOT RECOMMENDED FOR NEW DESIGN radial metal film leaded resistors EU features Lead frame construction High density assembly and excellent self-standing strength 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 D Dimensions inches (mm) Trimming Line Ceramic Core Type L (max.) D (max.) PH h (max.) t .197 .100.008 .236.039 .200 .010 LF1/8 (5.0) (2.540.2) (6.01.0) (5.08) (0.25) h .118.020 LF1/4 (3.00.5) .295 .098 .200.008 (7.5) (2.5) (5.080.2) .217 .012 LF1/4L Marking Resistive Electrode (5.5) (0.3) .217.020 Film Cap (5.50.5) .378 .300.012 LF1/2 H t Insulation Lead .02 (9.6) (7.620.3) Coating Terminal (0.5) P ordering information - LF LF 1/4 C T T A 1000 D Product Power T.C.R. Termination Nominal Resistance Taping Packaging Code Rating (ppm/C) Surface Material Resistance Tolerance LF 1/8: 0.125W C: 50 T: Sn T: Taping Ammo 2%, 5%: D: 0.5% (1/8W, (1/8, 1/4 2 significant figures 1/4: 0.25W D: 100 F: 1% 1/4W only) only) + 1 multiplier 1/4L: 0.25W L: 200 G:2% R indicates decimal Blank: Bulk 1/2: 0.5W J: 5% on value <10 0.5%, 1%: 3 significant figures + 1 multiplier For 1/4L, only bulk type is available. 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. 12/20/17 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com 171 resistorsresistors LF NOT RECOMMENDED FOR NEW DESIGN radial metal film leaded resistors applications and ratings Absolute Absolute T.C.R. Resistance Range () Rated Operating Part Power Maximum Maximum (ppm/C) Ambient Temperature Designation Rating D0.5% F1% G2% J5% Working Overload Max. Temperature Range E-96 E-24,E-96 E-24 E-24 Voltage Voltage C: 50 LF1/8 0.125W D: 100 45.3 - 562k 4.7 - 1M 1 - 1M 1 - 1M 200V 400V L: 200 C: 50 -55C LF1/4 +70C 0.25W D: 100 10 - 1M 10 - 1M 1 - 1M 1 - 1M 250V 500V to LF1/4L +150C L: 200 C: 50 LF1/2 0.5W D: 100 10 - 1M 10 - 1M 1 - 1M 1 - 1M 350V 700V L: 200 environmental applications Derating Curve 100 80 60 40 20 0 -60 -40 -20 0 20 40 60 80 100 120 140 160 -55 70 150 Ambient Temperature (C) Performance Characteristics Parameter Test Method Requirement R (% + 0.05) Resistance Within specified tolerance 25C T.C.R. Within specified T.C.R. +25C/+125C Overload (Short Time) 0.5% Rated voltage x 2.5 or max. overload voltage for 5 seconds, whichever is less Resistance to Solder Heat 0.25% 260C 5C, 10 seconds 1 second or 350C 10C, 3.5 seconds 0.5 second -55C (30 minutes)/+25C (10 minutes), +150C (30 minutes)/+25C Rapid Change of Temperature 0.5% (10 minutes), 5 cycles Moisture Resistance 1% 40C 2C, 90-95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle Endurance 70C 1% 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. 12/20/17 172 KOA Speer Electronics, Inc. 199 Bolivar Drive Bradford, PA 16701 USA 814-362-5536 Fax: 814-362-8883 www.koaspeer.com % Rated Power