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Technical content
148 KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 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.11/20/08 circuit protection L T73 linear positive tempco thermistor
features
- Anti-leaching nickel barrier terminations
- Twenty-five specifiable temperature characteristics
- SMD thin film resistor with thermo-perceptivity
- Marking: Black four-digit on bronze body color
- Products with lead-free terminations meet EU RoHS and China RoHS requirements TD: 7" paper taping (5,000 pieces/reel) TE: 7" embossed plastic (4,000 pieces/reel)
ordering information
2A: 0805 2B: 1206 T: Sn (Other termination styles available, contact factory for options) G:±2% J: ±5% LT73 2B 1000T Size CodeType Resistance Value Tolerance T.C.R.Termination Material Packaging New Part # TD 101 J For further information on packaging, please refer to Appendix A. dimensions and construction Protective Coating L c W t d Inner Electrode Solder Plating Ni Plating Resistive Film Ceramic Substrate c Type L .079±.008 (2.0±0.2) .012+.008 -.004 (0.3+0.2)-0.1 .016+.008 -.004 (0.4+0.2)-0.1 .02±.004 (0.5±0.1) .024±.004 (0.6±0.1) .016±.008 (0.4±0.2) .02±.008 (0.5±0.3) .063±.008 (1.6±0.2) .049±.008 (1.25±0.2) .126±.008 (3.2±0.2) (0805) (1206) (Inch Size Code) Wc d t Dimensions inches(mm) EU
1733 Reader's Spreads pg1-203:document 1/27/09 4:11 PM Page 146
linear positive tempco thermistor Absolute Maximum Working Voltage Absolute Maximum Overload Voltage Operating Temp. Range applications and ratings Part Designation Resistance Tolerance T.C.R. (ppm/°C)** T.C.R. Tolerance Power Rating @ 70°C 2KΩ - 24KΩ 1KΩ - 20KΩ 1KΩ - 13KΩ 510Ω- 4.7KΩ 510Ω- 4.7KΩ 510Ω- 3.0KΩ 510Ω- 3.0KΩ 510Ω- 3.0KΩ 100Ω- 1KΩ 51Ω- 510Ω 2KΩ - 51KΩ G: ±2% 150, 250, 350, 450, 500±100ppm/°C ±150ppm/°C ±15% ±10% 600, 700, 800, 900 1000, 1200, 1400 1600, 1800 2000, 2200, 2400 2600, 2800 3000, 3300, 3600 3900 4200 4500 J: ±5% LT732A 100mW 125mW 75V 50V 100V 150VLT732B 1KΩ - 43KΩ 1KΩ - 27KΩ 1KΩ - 10KΩ 510Ω- 9.1KΩ 510Ω- 6.2KΩ 510Ω- 6.2KΩ 510Ω- 6.2KΩ 100Ω- 2KΩ 51Ω- 510Ω Resistance Range E-24* LT732BLT732A -40°C to +125°C Performance Characteristics Derating Curve environmental applications% Rated Power 100 -20 0 2 04 06 08 01 001 201 40 12570 Ambient Temperature (°C) 0-40 Examples of Temperature Characteristics of Resistance -25 0 2 55 07 5 100 125 Ambient Temperature (°C) -30-50 4500ppm/°C -10 -20 3300ppm/°C 2400ppm/°C 1600ppm/°C Resistance Changing Rate (∆R) * See Appendix D for available decade values. ** T.C.R. is factory tested from 25°C to 75°C. PMS 300 neg. Black neg. Approximate Expression for Resistance-Temperature Characteristics C1 C2 3000 3300 3600 3900 4200 4500 0.934 0.00258 2.77 x 10 3.17 x 10-6 3.58 x 10-6 4.00 x 10-6 4.44 x 10-6 4.89 x 10-60.00377 0.927 0.921 0.915 0.909 0.903 T.C.R. (x10-6/K) 0.00282 0.00306 0.00330 0.00353 149KOA Speer Electronics, Inc.• 199 Bolivar Drive • Bradford, P A 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.12/31/08 circuit protection Parameter Requirement ∆ R ±(% + 0.05Ω) Limit Typical Test Method Resistance T.C.R. 25°C +25°C/+75°C Within specified tolerance Within specified T.C.R. Overload (Short time) Rated voltage x 2.5 or maximum overload volume for 5 seconds, whichever is lower±1.0% ±0.23% Resistance to Solder Heat 260°C ± 5°C, 10 seconds ± 1 second±1.0% ±0.1% Rapid Change of Temperature -40°C (30 minutes)/ +125°C (30 minutes), 5 cycles±1.0% ±0.1% Moisture Resistance 40°C ± 2°C, 90 - 95% RH, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±3.0% ±0.54% Endurance at 70°C 70°C ± 2°C, 1000 hours, 1.5 hr ON, 0.5 hr OFF cycle±3.0% ±0.62% Low Temperature Exposure -40°C, 45 minutes— ±0.05% (Ref) +125°C, 1000 hours— ±0.6% (Ref)High Temperature Exposure