Resistors Low Value Current Sense Thin Film Chip Resistors LCS Series Thin fi lm technology Low values down to R10 (100m) Precision to 0.5% & 50 p pm/C Accurate current sensing in electronic systems Anti-sulfur construction AllAll Pb-Pb-frfreeee partsparts ccomplyomply withwith EUEU DirDirectivectivee 2011/65/EU2011/65/EU amended amended b yb y(EU) (EU) 2015/863 2015/863 (R (RoHS3)oHS3) Electrical Data LCS0603 LCS0805 LCS1206 LCS2010 LCS2512 Power rating at 70C watts 0.1 0.125 0.25 0.5 1.0 Resistance range ohms R20-1R0 R10-1R0 Limiting element voltage volts 50 100 150 TCR ppm/C <R30: 100 R30: 50 Resistance tolerance % 0.5, 1, 5 Standard values E24 or E96 preferred Ambient temperature range C -55 to +155 Physical Data Dimensions in mm & weight in g Type L W T max A C Wt. nom LCS0603 1.60 0.2 0.80 0.2 0.55 0.30 0.2 0.006 0.30 0.2 LCS0805 2.00 0.2 1.25 0.2 0.40 0.25 0.009 LCS1206 3.05 0.15 1.55 0.15 0.35 0.25 0.42 0.2 0.020 0.65 LCS2010 4.9 0.2 2.4 0.2 0.036 0.50 0.25 0.60 0.3 LCS2512 6.3 0.2 3.1 0.2 0.055 Construction A thin-film material is selectively deposited on a 96% alumina substrate together with metallic contacts at each end of the resistor. The unadjusted resistors are heat treated to give the required TCR and stability, then a precisely controlle d laser trim process adjusts the resistance value. Protection is applied and wrap-around terminations are added and plated with nickel then tin. Each resistor is measured immediately before packing into tape. Terminations Standard is 100% Sn maett plated wrap-around terminations suitable for soldering. SnPb 60/40 plated terminations are also available. Marking 0603 & 0805 sizes are unmarked. Larger sizes are marked with up to four characters, e. g. 1 is marked 1R0 and 680m is marked R68. General Note BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors TT Electronics plc 06.18 Low Value Current Sense Thin Film Chip Resistors Low Value Current Sense Thin Film Chip Resistors LCS Series LCS Series Performance Data Maximum (+0.05) Performance Data Load at rated power (1000hrs cyclic load at 70 C) 1 R% Maximum (+0.005) De-rating from rated power at 70 C See Graph Load at rated power (1000hrs cyclic load at 70C) R% 1 Short term overload (6.25 x rated power for 5s) 1 R% De-rating from rated power at 70C See Graph Short term overload (6.25 x rated power for 5s) R% 1 Temperature rapid change (-55 / +150C, 100 cycles) R% 0.5 Temperature rapid change (-55 / +150C, 100 cycles) R% 0.5 Damp heat steady state 0.5 R% Damp heat steady state R% 0.5 Resistance to solder heat (260C for 10s) R% 0.5 Resistance to solder heat (260C for 10s) R% 0.5 High temperature operation R% 0.5 High temperature operation 0.5 R% Insulation resistance M >1000 Insulation resistance M >1000 Packaging Packaging Temperature Derating Temperature Derating The stand ard packin g for LCS parts is on 8mm wide plastic carrier tape for The standard packing for LCS parts is on 8mm wide plastic carrier 0603 to 1206 sizes and 12mm wide pla stic carrier tape for 2010 and 2512 tape for 0603 to 1206 sizes and 12mm wide plastic carrier tape for sizes. All sizes are wound on 7 (178mm) reels as per IEC 286-3. 100% 2010 and 2512 sizes. All sizes are wound on 7 (178mm) reels as per 100% IEC 286-3. 80% 80% 60% 60% 40% 40% 20% 20% 0% 0% 0 50 100 150 0 50 100 150 Ambient Temperature (C) Ambient Temperature (C) Ordering Procedure Ordering Procedure Example: LCS0603-R20DT5 (LCS0603, 200m 0.5%, Pb-free, tape packed 5000/reel) Example: LCS0603-R20DT5 (LCS0603, 200m 0.5%, Pb-free, tape packed 5000/reel) L C S 0 6 0 3 - R 2 0 D T 5 1 2 3 4 5 1 2 3 4 5 Series Size Value Tolerance Termination & Packing LCS 0603 D=0.5% T5 0603 Pb-free, 5000/reel R=ohms 0805 F=1% T3 0805, 1206, 2010 Pb-free, 3000/reel Standard 1206 J=5% T18 2512 Pb-free, 1800/reel 2010 PB SnPb terminations (pack quantities are as for Pb-free) 2512 General Note BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. www.ttelectronicsresistors.com All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors TT Electronics plc 06.18 Proportion of Pr Proportion of Pr