Featured Products Low Ohmic High Power Chip Resistors (Wide Terminal Type) LTR Series The LTR series utilizes a wide electrode configuration and proprietary thermal design for increased reliability and power handling capability. As a result, heat dissipation and solder joint strength are improved, making them ideal for current detection circuits in a wide range of applications, including automotive systems exposed to thermal stress (i.e. temperature cycling). 4x smaller than our MCR series High Rated Power High junction strength Optimized for large current detection Proprietary thermal design improves rated power Functions Size (mm[inch]) MCR Series (Conventional Type) 3216 [1206] 6432 [2512] 0.25W Applications 4x the rated power 1W 1.0W 1/4th*the size Current detection in automotive systems, power supplies, and more 2W *At the same rated power Wide terminal configuration utilized for greater reliability The electrodes were configured at the wider sides, reducing mechanical stress at the joints. The result is improved joint reliability against temperature changes. LTR Series (Wide Terminal Type) Wide terminal design provides superior strength against temperature cycling Distance between electrodes MCR Series (Conventional Type) LTR Series (Wide Electrode Type) Long Short Significant Effects from board expansion/contraction mechanical stress at the joint Joint reliability Motor control circuits Battery protection circuits LED lighting Audio Reduced mechanical stress at the joint Industrial equipment ż Low Ohmic Series Part No. Size Code Rated Power (70°C) Resistance Tolerance LTR10 2012 1/2W (0.5W) J (±5%) F (±1%) J (±5%) LTR18 3216 1W F (±1%) J (±5%) LTR100 6432 2W F (±1%) Temperature Coefficient of Resistance (ppm/°C) Resistance Range ±150 PȍWRȍ(6HULHV 0-300 0-200 0-150 ±100 0-300 0-200 ±200 0-300 0-200 0-150 PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV PȍWRPȍ(6HULHV Operating Temperature Range (°C) -55 to +155 : Under development 6WDQGDUG6HULHVȍa Part No. LTR10 LTR18 LTR50 LTR100 Size Code 2012 3216 5025 6432 Rated Power (70°C) Max. Element Voltage (V) 1/4W (0.25W) 150 0.75W 200 1W 2W 200 200 Resistance Tolerance Temperature Coefficient of Resistance (ppm/°C) J (±5%) F (±1%) D (±0.5%) J (±5%) F (±1%) D (±0.5%) J (±5%) F (±1%) D (±0.5%) J (±5%) F (±1%) D (±0.5%) ±200 ±100 ±100 ±200 ±100 ±100 ±200 ±100 ±100 ±200 ±100 ±100 Resistance Range Operating Temperature Range (°C) ȍWR0ȍ(6HULHV ȍWR0ȍ(6HULHV ȍWR0ȍ( Series) ȍWR0ȍ(6HULHV ȍWR0ȍ(6HULHV ȍWR0ȍ(6HULHV ȍWR0ȍ(6HULHV ȍWR0ȍ(6HULHV -55 to +155 ROHM Low Resistance Development Map 5 PSR Series 4 Ultra Metal High Low Resistance Plate Power Under Development 3656HULHV5HFRPPHQGHG$SSOLFDWLRQV GMR Series 3 to 5W PїWRPї Rated Power : Low Metal High Resistance Plate Power Automotive (36EDWWHU\PRQLWRULQJXQLWHWF 2 to 5W PїWRPї Energy-related sets 3RZHUFRQGLWLRQHUV ※3W product is under development. 3 Large appliances $&UHIULJHUDWRUV 2 Ultra Metal Wide Low Resistance Plate Electrode Ultra Metal Low Resistance Plate PML Series Low Thick Wide Resistance Film Electrode LTR Series PMR Series 1 Low Thick Reverse Resistance Film Mount UCR Series Low Thick Resistance Film MCR Series 0.1m 1m 10m 100m 1 10 Resistanceї ROHM Low Ohmic Resistor Lineup Rated Power (W) 5 2 1.5 UCR LTR MCR Thick Film 5HVLVWDQFHї 0.1m 0.2m 4 3 Metal Strip PSR GMR PMR PML 3DUW1RPP>LQFK@ 1m PSR500 / 15×7.75 [5931] 0.3m 0.2m 10m 2m PSR400 / 10×5.2 [3921] 1 GMR320 / 7142 [2817] 200m 220m 10m GMR100 / 6432 [2512] 220m GMR50 / 5025 [2010] 220m 10 3m 3m PSR100 / 6432 [2512] PMR100 / 6432 [2512] 1m PML100 / 6432 [2512] 1m 0.5m 100m 10m 10m 10m 10m 2.2m LTR100 / 6432 [2512] 91m 100m LTR100 / 6432 [2512] 910m PML50 / 5025 [2010]2.2m 1m PMR18 / 3216 [1206] PMR25 / 3225 [1210] 1m 1 10m 10m LTR18 / 3216 [1206] 1 5m 1m PMR50 / 5025 [2010] 10m 47m MCR100 / 6432 [2512] 9.1 47m LTR10 / 2012 [0805] 9.1 47m MCR25 / 3225 [1210] 9.1 47m MCR50 / 5025 [2010] 9.1 0.5m PML18 / 3216 [1206] 2.5m 0.66 PML10 / 2012 [0805] 1m 2.5m 2m PMR10 / 2012 [0805] 10m UCR18 / 3216 [1206] 11m 1/2 1/3 1/4 1/5 20m 100m UCR03 / 1608 [0603] 200m 47m MCR10 / 2012 [0805] 9.1 47m MCR18 / 3216 [1206] 9.1 PMR01 / 1005[0402] 10m 1/8 1/10 UCR10 / 2012 [0805] 11m PMR03 / 1608[0603] 10m 100m 220m UCR03 / 1608 [0603] 910m 68m PMR006 / 0603[0201] 10m UCR01 / 1005 [0402] 100m UCR006 / 0603 [0201] 910m 910m MCR03 / 1608 [0603] 1 9.1 1/16 MCR01 / 1005 [0402] 1 9.1 1/20 MCR006 / 0603 [0201] 1 9.1 Under Development: Please note that for models under development, specifications are subject to change without notice. Contact us for more information. The contents specified in this document are correct as of October 1st, 2014. [O_016] Catalog No.56O6728E-B 10.2014 ROHM © PDF