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| KOA SPEER ELECTRONICS, INC. SS-250 R4 AHA 5/01/08 Thick Film Linear Positive Tempco Thermistor LA73 Type CERTIFIED CERTIFIED 1. Features I Anti-leaching nickel barrier terminations I Marking: Black three-digit on orange body color I Twenty-five specifiable temperature characteristics I Products with lead-free terminations meet EU-RoHS requirements. Pb located in glass material, electrode and resistor element is exempt per Annex 1, exemption 5 of EU directive 2005/95/EC 2. Dimensions c W t L c Table 1 Part 1J (0603) Solder Plating Ni Plating L 0.0630.008 (1.60.2) 0.0790.008 (2.00.2) 0.1260.008 (3.20.2) Dimensions - inches (mm) W c 0.0310.004 (0.80.1) 0.0490.004 (1.250.1) 0.0630.008 (1.60.2) 0.0120.004 (0.30.1) 0.0160.008 (0.40.2) 0.020.008 (0.50.3) d t 0.020.004 (0.50.1) 0.020.004 (0.50.1) 0.0240.004 (0.60.1) 0.0120.004 (0.30.1) +0.008 0.012... .. -0.004 +0.2 (0.3 -0.1 ) +0.008 0.016... .. -0.004 +0.2 (0.4 -0.1 ) d Protective Coating Resistive Inner Film Electrode 2A (0805) 2B (1206) Ceramic Substrate 3. Type Designation The type designation shall be in the following form: LA73 Type 1J Size Code 1J: 0603 2A: 0805 2B: 1206 T Termination Material T: Sn (Other termination styles available, contact factory for options) TD Packaging TP: 7" Embossed Plastic 2mm pitch TD: 7" paper (5,000 pieces/reel) 101 Resistance Value 2 significant figures + 1 multiplier J Tolerance J: 5% 3300 T.C.R. PAGE 1 OF 4 Bolivar Drive I P.O. Box 547 I Bradford, PA 16701 I USA I 814-362-5536 I Fax 814-362-8883 I 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-250 R4 4. Standard Applications Table 1 Part Designation LA731J LA732A LA732B Thermal Dissipation Constant (mW/C) 7.6 8.2 9.0 +70C -55C to +125C Rated Ambient Temp. Operating Temp. Range Table 2 Resistance Range E-12 LA731J 1K - 10K 680 - 6.8K 470 - 4.7K 470 - 3.9K 330 - 2.7K 330 - 2.7K 220 - 1.8K 100 - 1.2K 100 - 1.2K 100 - 390 68 - 220 33 - 120 22 - 82 LA732A 1K - 10K 680 - 6.8K 470 - 4.7K 470 - 3.9K 330 - 2.7K 330 - 2.7K 220 - 1.8K 100 - 1.2K 100 - 1.2K 100 - 390 68 - 220 33 - 120 22 - 82 LA732B 1K - 10K 680 - 6.8K 470 - 4.7K 470 - 3.9K 330 - 2.7K 330 - 2.7K 220 - 1.8K 100 - 1.2K 100 - 1.2K 100 - 390 68 - 220 33 - 120 22 - 82 Resistance Tolerance T.C.R. (ppm/C) Max. 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3300 3600 T.C.R. Tolerance 100ppm/C J: 5% 5% PAGE 2 OF 4 Bolivar Drive I P.O. Box 547 I Bradford, PA 16701 I USA I 814-362-5536 I Fax 814-362-8883 I 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-250 R4 6. Environmental Applications 6.1 Derating Curve 100 80 % Rated Power 60 Resistance Changing Rate (R) 40 30 20 10 0 6.2 Temperature Characteristics 3600ppm/C 3000ppm/C 2000ppm/C 1000ppm/C 40 20 0 -60 -40 -55 -10 -20 -30 -40 -75 -50 -25 0 Ambient Temperature (C) 25 50 75 100 125 -20 0 70 Ambient Temperature (C) 20 40 60 80 100 120 140 125 7. Approximate Expression for Resistance-Temperature Characteristics T.C.R. (x10-6/K) 3000 3300 3600 C0 0.926 0.918 0.910 C1 0.00294 0.00325 0.00359 C2 1.1 x 10-7 4.1 x 10-7 1.7 x 10-7 (Values are not guaranteed but typical) RT=R25 (C0+C1T+C2T2) RT: Resistance value at TC R25: Resistance value at 25C T: Ambient temperature (C) C0, C1, C2: Constants 8. Characteristics Parameter Resistance T.C.R. Short Time Overload Resistance to Solder Heat Solderability Bending Test Temperature Cycling Moisture Resistance Load Life Requirement R Within regulated tolerance Within specified T.C.R. (1.0% + 0.1): 1J, 2A, 2B 95% coverage minimum (1.0% + 0.1): 1J, 2A, 2B (3.0% + 0.1): 1J, 2A, 2B Test Method 25C +25C/+75C Rated voltage x 2.5 or max. working voltage x 2 for 5 seconds, whichever is less 260C 5C, 10 seconds 1 second 235C 5C, 2 seconds 0.5 seconds Width of holding point 90mm, bending 3mm, 1 time -55C (30 minutes), +125C (30 minutes), 100 cycles 40C 2C, 90 - 95% RH, 1000 hours, rated voltage load 70C 3C, 1000 hours, rated voltage load PAGE 3 OF 4 Bolivar Drive I P.O. Box 547 I Bradford, PA 16701 I USA I 814-362-5536 I Fax 814-362-8883 I 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-250 R4 9. Packaging Specifications (Notes) Dotted lines are applicable to only "TP." Dimensions - inches (mm) Style 2A 2B 1J A 0.750.004 (1.90.1) 0.940.008 (2.40.2) 0.450.004 (1.150.1) B 0.0430.004 (1.10.1) 0.0650.008 (1.650.2) 0.0260.004 (0.650.1) 0.310.008 (8.00.2) W P1 0.160.004 (4.00.1) 0.780.002 (2.00.05) T1 0.024+0.008/-0 (0.6+0.2/-0) 0.03+0.008/-0 (0.75+0.2/-0) 0.018+0.004/-0 (0.45+0.1/-0) (Notes) Reel holes, shapes and design are examples Dimensions - inches (mm) Style 2A 2B 1J Tape Punched Carrier TD oa 7.078 (1782) B 2.36.078 (602) D 0.35.059 (91.5) od .83 (21) PAGE 4 OF 4 Bolivar Drive I P.O. Box 547 I Bradford, PA 16701 I USA I 814-362-5536 I Fax 814-362-8883 I 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. |
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