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300144ZTR2TCR0.2TQB Datasheet(PDF) 2 Page - Vishay Siliconix |
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300144ZTR2TCR0.2TQB Datasheet(HTML) 2 Page - Vishay Siliconix |
2 / 5 page 300144Z, 300145Z (Z-Foil) Vishay Foil ResistorsUltra High Precision Z-Foil Voltage Divider Resistors with TCR Tracking to 0.1 ppm/°C, Power Coefficient Tracking of 5 ppm at Rated Power, and Tolerance Match to 0.005 % (50 ppm) www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63115 2 Revision: 21-Nov-07 Note: Power is proportional to the divider ratio Example: In a 300144Z (1K/10K dual), the power rating would be 18 mW on the 1K and 182 mW on the 10K, for a total of 200 mW on R1 + R2. FIGURE 1 - TRIMMING TO VALUES (conceptual illustration) Mutual Inductance Reduction due to Change in Current Direction Current Path Before Trimming Note: Foil shown in black, etched spaces in white Interloop Capacitance Reduction in Series Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Current Path After Trimming FIGURE 2 - STANDARD PRINTING AND DIMENSIONS in inches (millimeters) Model 300144Z and Schematic2) Model 300145Z and Schematic2) 23 R2 1 R1 123 VISHAY 9825 0.295 (7.49) 0.320 (8.13) Date Code Model No. 0.75 1) (19.05) 0.1 (2.54) 300144Z 0.015 ± 0.005 (0.38 ± 0.13) 0.025 ± 0.005 (0.64 ± 0.13) 1 Low Resistance Value Indicator 0.1 (2.54) Match Tolerance 123 0.75 1) (19.05) 0.1 (2.54) 0.015 ± 0.005 (0.38 ± 0.13) 0.025 ± 0.005 (0.64 ± 0.13) 23 R2 1 R1 54 R1 6 R2 0.375 (9.53) 0.375 (9.53) 0.2 (5.08) 654 Match Tolerance Date Code Model No. VISHAY 9825 300145Z Tolerance: ± 0.010" (0.25) 1. Lead wires: #22 AWG solder coated copper, 0.75" minimum length 2. Each resistor contains 1 chip of two resistive elements FIGURE 3 - POWER DERATING CURVE 300144Z, 300145Z 200 % 175 % 150 % 125 % 100 % 75 % 50 % 25 % 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200 Ambient Temperature ( °C) - 55 °C + 70 °C Double Rated Power Rated Power ∆ Safe operation for < 150 ppm R after 2000 hours load-life. ( ) ( ) R1 R2 P1 = P P2 = P R1 + R2 R1 + R2 FIGURE 4 - TYPICAL TCR CURVE Z-FOIL (for more details see table 1) + 500 + 200 + 100 0 - 100 - 200 - 300 - 500 - 55 - 25 + 25 + 60 + 75 + 100 + 125 Ambient Temperature (°C) ΔR R (ppm) 0 0.05 ppm/°C - 0.1 ppm/°C 0.1 ppm/°C 0.14 ppm/°C 0.2 ppm/°C - 0.16 ppm/°C - 400 + 300 + 400 |
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