TX Series Thick Film Chip Thermistor fea TureS High mechanical strength and reliability are available due to therm- istor film and glass-coated structure on alumina substrate Thickness does not change on any resistance value High solder ability and heat resistance are available due to triple structure electrodes AEC -Q200 is available UL1434 can be available in some parts Some parts can resist in operating temperature range up to 150C SerieS Specifica TionS Thermal Time Rated Power Dissipation Factor* Constant in Air Series Size in Air 1.5mW/C 5.0 sec. (25C) TX08 0805 1.3 mW/C 2.5 sec. 130mW TX06 0603 1.2 mW/C 2.0 sec. 120mW TX04 0402 1.1 mW/C 1.5 sec. 110mW *Dissipation factor values depend on measurement procedure and materials used. characTeriSTicS Resistance Temperature Characteristics Resistance 1%, 2%, 3%, 5%, Tolerance 10% Resistance (25C) 1K 1K 1K 10K 10K 10K 10K 100K 100K 100K B-Value Determined by zero- T emp. B-value (25C/85C) power resistance at 25C C 2750K 3000K 3200K 3450K 3700K 3900K 4100K 4300K 4500K 4700K and 85C -40 11,290 14,270 17,200 217,300 274,600 331,000 399,100 4,039,000 4,870,000 5,871,000 B-value 1%, 2%, 3%, 5% -35 9,012 11,130 13,180 162,800 201,100 238,200 282,000 2,878,000 3,408,000 4,036,000 -30 7,248 8,761 10,200 123,200 149,000 173,400 201,800 2,073,000 2,413,000 2,808,000 Tolerance -25 5,872 6,953 7,959 94,240 111,600 127,700 146,200 1,508,000 1,727,000 1,976,000 Operating Temp. -40 ~ +125 -20 4,791 5,561 6,265 72,720 84,410 95,100 107,100 1,108,000 1,248,000 1,407,000 Range -15 3,935 4,481 4,971 56,620 64,470 71,530 79,370 821,600 911,600 1,011,000 5mW Max. Permissible -10 3,253 3,636 3,975 44,450 49,690 54,330 59,400 614,500 671,900 734,600 -5 2,705 2,971 3,202 35,170 38,630 41,640 44,890 463,500 499,700 538,600 Power 0 2,262 2,443 2,597 28,040 30,280 32,200 34,240 352,500 374,800 398,500 5 1,902 2,020 2,120 22,520 23,920 25,100 26,340 270,100 283,400 297,40 Standard Resistance Range 25C 10 1,608 1,681 1,741 18,210 19,040 19,730 20,440 208,500 216,000 223,900 15 1,366 1,406 1,439 14,820 15,260 15,620 15,990 162,100 165,900 169,800 B-value 20 1,166 1,183 1,196 12,130 12,310 12,450 12,600 126,900 128,400 129,800 (25C/85C) TX08 TX06 TX04 25 1,000 1,000 1,000 10,000 10,000 10,000 10,000 100,000 100,000 100,000 4510~4800K 25K~500K 50K~2M 75K~1M 30 861.3 849.5 840.1 8,286 8,172 8,082 7,993 79,300 78,430 77,570 4410~4500K 15K~400K 20K~1M 45K~500K 35 745.0 725.0 709.4 6,903 6,718 6,573 6,432 63,280 61,920 60,580 4210~4400K 10K~100K 15K~200K 30K~100K 40 647.0 621.5 601.8 5,782 5,554 5,378 5,208 50,790 49,190 47,630 4010~4200K 3K~100K 5K~200K 8K~100K 45 564.1 535.1 513.0 4,867 4,617 4,426 4,243 41,010 39,310 37,690 3810~4000K 1K~50K 2K~100K 4K~50K 50 493.6 462.6 439.2 4,116 3,858 3,663 3,477 33,290 31,610 30,010 3610~3800K 500~30K 1K~50K 1.5K~30K 55 433.5 401.5 377.7 3,498 3,240 3,047 2,866 27,170 25,560 24,040 3410~3600K 500~30K 1K~50K 1.5K~30K 60 382.1 349.9 326.1 2,986 2,734 2,548 2,375 22,300 20,780 19,360 3210~3400K 500~30K 1K~50K 1.5K~30K 65 337.9 306.0 282.6 2,560 2,318 2,141 1,978 18,390 16,980 15,690 3010~3200K 400~10K 650~20K 1.2K~10K 70 299.8 268.6 246.0 2,203 1,974 1,808 1,656 15,240 13,960 12,780 2810~3000K 250~5K 400~10K 750~5K 75 266.8 236.5 214.8 1,904 1,688 1,533 1,392 12,690 11,530 10,470 2610~2800K 80~2K 100~5K 270~2K 80 238.2 209.0 188.3 1,652 1,450 1,306 1,177 10,620 9,566 8,617 2410~2600K 50~1K 80~2K 150~1K 85 213.3 185.3 165.6 1,439 1,251 1,118 998.8 8,927 7,978 7,130 90 191.5 164.8 146.2 1,258 1,083 960.2 851.5 7,537 6,684 5,928 95 172.4 147.0 129.4 1,103 940.9 828.2 729.0 6,392 5,626 4,953 12 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.comTX Series Thick Film Chip Thermistor Soldering Solder: Pb-free solder Sn-3.0Ag-0.5Cu Flow Reflow Temp. (C) Temp. (C) Peak: 265C / 10 sec. Peak: 260C / 20 ~ 40 sec. 217 200 200 150 150 Pre-heating Pre-heating Reflow 60s ~ 180s 60s ~ 180s 60s ~ 150s Number of reflow cycles allowed: 3 times Number of reflow cycles allowed: 3 times Time (sec.) Time (sec.) dimenSionS (mm) L Insulation Glass Type Inch size L W t b Qty/reel TX08 0805 2.00 0.20 1.25 0.20 0.55 0.10 0.40 0.20 5,000 W Outer TX06 0603 1.60 0.15 0.80 0.15 0.50 0.10 0.30 0.20 5,000 Plating TX04 0402 1.00 0.05 0.50 0.05 0.35 0.05 0.25 +0.05/-0.10 10,000 Inner T Plating Electrode Thermistor Alumina b Substrate 1-866-9-OHMITE Intl 1-847-258-0300 Fax 1-847-574-7522 www.ohmite.com info ohmite.com 13