description: a range of radially-wired ptc disc thermistors with black silicone resin coating. features: designed for general purpose over-current, over- voltage and direct over-temperature protection operation up to 265v rms wide range of operating current levels excellent stability fail-safe operation solid state high performance barium titanate ceramic suitable for automatic pcb insertion options: non-standard resistances and tolerances resistance matching non-standard wire lengths other wire configurations packaging: all types in the ym120 range are available loose- packed, as shown in the drawing. devices are also available on bandolier (tape & reel): types with diameter a <14.5mm comply with iec 286-2. to identify the packaging required, replace x in the product codes shown in table as follows: bandoliered ......................................................r loose-packed ...................................................n pack quantities: loose-packed .........................................500/box bandoliered a<14.5mm ........................1000/reel (0.5" pitch) a 3 14.5mm ............................500/reel (1" pitch) dimensions: crown industrial estate, priorswood road 808 us highway 1 967 windfall road taunton, somerset ta2 8qy uk edison, new jersey 08817-4695 usa st. marys, pennsylvania 15857-3397 usa tel +44 (0) 1823 335200 tel +1 (732) 287 2870 tel +1 (814) 834 9140 fax +44 (0) 1823 332637 fax +1 (732) 287 8847 fax +1 (814) 781 7969 data: maximum operating voltage .............. 265v rms switch temperature ....................120 c nominal tolerance on r 25 ..................................... 20% ambient temperature range: at maximum voltage ........................0 to +55? at zero voltage ...........................-25 to +155? lead wire material .............solder-coated copper body coating .................................silicone resin ptc thermistors: type ym120 over-current protection g
crown industrial estate, priorswood road 808 us highway 1 967 windfall road taunton, somerset ta2 8qy uk edison, new jersey 08817-4695 usa st. marys, pennsylvania 15857-3397 usa tel +44 (0) 1823 335200 tel +1 (732) 287 2870 tel +1 (814) 834 9140 fax +44 (0) 1823 332637 fax +1 (732) 287 8847 fax +1 (814) 781 7969 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 r 25 resistance at 25? i nt maximum current without tripping (25? ambient) i t minimum trip current (25? ambient) i mo maximum overload current i r residual current (25? ambient) d e f g h i j bth 450 bth 330 bth 250 bth 200 bth 150 bth 100 bth 060 4.0 4.0 4.0 4.0 4.0 4.5 6.0 7.0 7.5 8.5 9.5 11.5 14.5 17.5 5 6 6 7 7 8 8 9 9 10 11 12 16 25 0.1 0.1 0.2 0.2 0.2 0.4 0.6 0.7 0.9 1.1 1.3 1.7 2.7 3.9 0.023 0.028 0.040 0.055 0.080 0.098 0.131 0.155 0.181 0.228 0.265 0.330 0.444 0.575 0.016 0.020 0.028 0.039 0.057 0.070 0.093 0.110 0.128 0.161 0.192 0.234 0.314 0.407 1800 1200 600 300 150 100 60 45 33 25 20 15 10 6 ym120c15x182 ym120c20x122 ym120c30x601 ym120c45x301 ym120c60x151 ym120c80x101 ym120d105x600 ym120d125x450 ym120d150x330 ym120d170x250 ym120d200x200 ym120d260x150 ym120d370x100 ym120d480x060 brand code a mm i r ma i mo a i t a i nt a r 25 code ptc thermistors: type ym120 over-current protection b mm g
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