KOA SPEER ELECTRONICS, INC. SS-254 R5 AHA 6/01/06 Negative Tempco Thermistor Type NT73 CERTIFIED CERTIFIED 1. Features ■ Anti-leaching nickel barrier terminations ■ Twelve standard resistance values ■ Suitable for reflow and wave soldering ■ Marking: Black three-digit on pink body color 2. Dimensions Table 1 L c c Solder Plating Ni Plating t d Protective Coating L Type W Resistive Inner Film Electrode Ceramic Substrate Dimensions - inches (mm) W c d t .063±.008 1J (0603) (1.6±0.2) .031±.004 (0.8±0.1) .012±.004 (0.3±0.1) .012±.004 (0.3±0.1) .02±.004 (0.5±0.1) .079±.008 2A (0805) (2.0±0.2) .049±.004 (1.25±0.1) .016±.008 (0.4±0.2) .012 +.008 -.004 (0.3 +0.2 -0.1 ) .02 +.008 -.004 (0.5 +0.2 -0.1 ) .126±.008 2B (1206) (3.2±0.2) .063±.008 (1.6±0.2) .02±.008 (0.5±0.3) .016 +.008 -.004 (0.4 +0.2 -0.1 ) .024±.004 (0.6±0.1) 3. Type Designation Type designation shall be as the following form. NT73 Type 2A T TD 103 K 3800 J Size Code Termination Material Packaging Nominal Resistance Resistance Tolerance B Constant Nominal B Constant Tolerance 1J: 0603 2A: 0805 2B: 1206 T: Sn (Other termination styles available, contact factory for options) TD: 7" Paper Tape (5,000 pieces/reel) 2 Significant figures + 1 multiplier J: ±5% K: ±10% L: ±15% 3200 3500 3700 3800 3950 4100 H: ±3% J: ±5% K: ±10% PAGE 1 OF 4 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 ■ www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA SPEER ELECTRONICS, INC. SS-254 R5 4. Applications and Ratings Part Designation Resistance @ 25°C Resistance Tolerance 6.8kΩ 10kΩ 15kΩ 10kΩ 20kΩ 22kΩ 30kΩ 33kΩ 47kΩ 68kΩ 100kΩ 47kΩ 1kΩ 2kΩ 2.2kΩ 2.4kΩ 3.3kΩ 4.7kΩ 5kΩ 6.8kΩ 10kΩ 15kΩ 10kΩ 20kΩ 22kΩ 30kΩ 33kΩ 47kΩ 68kΩ 100kΩ 150kΩ 50kΩ 10kΩ 15kΩ 22kΩ 30kΩ 33kΩ 47kΩ 68kΩ 100kΩ 150kΩ 1kΩ 2.2kΩ 3.3kΩ 4.7kΩ 6.8kΩ 10kΩ 22kΩ 33kΩ 47kΩ 68kΩ 100kΩ NEW NT731J NT732A NT732B B Constant @ 25°C/75°C B Constant Tolerance Operating Temperature Range 2 5 -55°C to +125°C 2.8 5 ±5% 3800K 3700K K: ±10% L: ±15% Power Rating (mW) ±10% 3500K J: ±5% K: ±10% Thermal Dissipation Constant (mW/°C) ±3% 3800K ±5% 4100K 3200K ±3% 3500K ±10% 3800K 3500K ±5% 3800K J: ±5% K: ±10% L: ±15% -55°C to +125°C 3950K ±3% 4100K 3200K K: ±10% L: ±15% 3500K J: ±5% K: ±10% L: ±15% 3800K ±10% 3 5 ±5% 5. Environmental Applications 5.1 Temperature Characteristics 5.2 RT/R25 Ratio vs. B Constant RT/R25 Ratio vs. B Constant 10,000,000 Resistance Resistance (Ω) 100kΩ 100,000 -55 -50 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 10kΩ 10,000 3800k 1kΩ 1,000 3800k 100 3200k 10 -50 -25 0 1k Ω 5k Ω 10k Ω 100k Ω 10kΩ Resistance 1k Ω 5k Ω 10k Ω 100k Ω 10kΩ B Constant 3200K 3500K 3700K 3800K 4100K B Constant 3200K 3500K 3700K 3800K 4100K kΩ kΩ kΩ kΩ Ω kΩ kΩ Ω kΩ kΩ Temp. (°C) Temp. (°C) 1,000,000 25 50 75 Temperature (°C) 100 125 38770 28840 21706 16517 12698 9857.0 7721.2 6100.5 4858.7 3899.0 3151.3 2564.2 2099.9 1730.0 1433.5 1194.2 1000.0 841.48 711.39 273.24 197.67 144.85 107.43 80.577 61.077 46.759 36.137 28.173 22.147 17.546 14.004 11.256 9.1063 7.4135 6.0712 5.0000 4.1398 3.4451 638.23 465.81 343.25 255.22 191.37 144.64 110.13 83.710 64.190 49.640 38.680 30.370 23.970 19.070 15.270 12.320 10.000 8.1700 6.7100 7692.5 5414.6 3864.5 2794.3 2045.2 1514.1 1133.0 856.49 653.63 503.31 390.86 305.97 241.34 191.73 153.36 123.46 100.00 81.470 66.739 1203.1 820.76 568.09 398.57 283.20 203.64 148.07 108.37 80.182 59.943 45.252 34.478 26.473 20.506 16.016 12.608 10.000 7.9880 6.4242 40 45 50 55 60 65 70 75 80 85 90 95 100 105 110 115 120 125 604.07 515.10 441.00 379.00 326.90 282.95 245.72 214.08 187.08 163.96 144.11 127.00 112.21 99.377 88.224 78.501 70.004 62.558 2.8809 2.4202 2.0421 1.7302 1.4718 1.2568 1.0771 0.92637 0.79937 0.69199 0.60087 0.52329 0.45701 0.40016 0.35129 0.30915 0.27272 0.24114 5.5500 4.6100 3.8500 3.2300 2.7200 2.3100 1.9700 1.6800 1.4500 1.2500 1.0800 0.94000 0.82000 0.72000 0.63000 0.56000 0.49000 0.44000 54.959 45.484 37.823 31.594 26.506 22.330 18.886 16.035 13.663 11.682 10.022 8.6257 7.4466 6.4466 5.5968 4.8721 4.2523 3.7207 5.1999 4.2349 3.4692 2.8585 2.3682 1.9721 1.6504 1.3877 1.1724 0.99491 0.84926 0.72802 0.62662 0.54156 0.46982 0.40906 0.35741 0.31332 Note: RT/R25 ratio is the resistance at temperature (T) divided by the nominal resistance at 25°C. The RT/R25 ratio value is multiplied by the thermistor’s nominal 25°C value to determine the nominal resistance value at a given temperature in the chart above. PAGE 2 OF 4 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 ■ www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA SPEER ELECTRONICS, INC. SS-254 R5 6. Performance Characteristics Parameter Maximum ∆ R Test Method ±3.0% ±1.0% ±1.0% ±3.0% ±3.0% ±3.0% 1000 hours @ 80°C MIL-R-55342 π 4.7.7, 260°C for 10 seconds 2mm min. deflection in either direction for 10 seconds MIL-STD-202, Method 103, 40°C, 90 - 95% RH, 1000 hours 80°C, DC 5mm, 1000 hours 30 minutes @ -55°C, 15 minutes @ +25°C, 30 minutes @ +125°C, 15 minutes @ +25°C, 50 cycles High Temperature Exposure Resistance to Solder Heat Terminal Strength-Bend Moisture Resistance Life Temperature Cycling Dielectric Withstanding Voltage 2A 2B Insulation Resistance 400V 400V 10,000 MΩ Minimum 1 minute minimum MIL-STD-202, Method 301 — Note: RT/R25 ratio is the resistance at temperature (T) divided by the nominal resistance at 25°C. The RT/R25 ratio value is multiplied by the thermistor’s nominal 25°C value to determine the nominal resistance value at a given temperature in the chart above. 7. Packaging Information 1.5 +0.1 -0 1.75±0.1 Central hole A øa W B P1 (TP) 2.0 4.0±0.1 P1 T1 T1 Component Size (mm) 1J 2A 2B ø21 2 T1 Direction of feed L W T Carrier Tape 14.6 2 3.2 0.8 1.25 1.6 0.45 0.5 0.6 TD TD TD Type NT73 ø13 Quantity/ Reel (Pieces) 5000 5000 5000 Taping (mm) Reel Size A B W 1.9±0.1 1.1±0.1 8.0±0.2 2.4±0.2 1.65±0.2 8.0±0.2 3.5±0.2 2±0.2 8.0±0.2 P1 T1 4.0±0.1 4.0±0.1 4.0±0.1 0.6+0.2/-0 0.75+0.2/-0 0.75+0.2/-0 178 178 178 PAGE 3 OF 4 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 ■ www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use. KOA SPEER ELECTRONICS, INC. SS-254 R5 8. Pad Dimensions B D A C Soldering Pad Chip Component NT73 1J 2A 2B Size 1.6 x 0.8 2.0 x 1.25 3.2 x 1.6 A 0.8 1.2 2.2 B 2.6 3.0 4.2 C 0.8 1.2 1.5 D 0.9 0.9 1.0 PAGE 4 OF 4 Bolivar Drive ■ P.O. Box 547 ■ Bradford, PA 16701 ■ USA ■ 814-362-5536 ■ Fax 814-362-8883 ■ www.koaspeer.com Specifications given herein may be changed at any time without prior notice. Please confirm technical specifications before you order and/or use.