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VHP203JTP120K50FB Datasheet(PDF) 1 Page - Vishay Siliconix |
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VHP203JTP120K50FB Datasheet(HTML) 1 Page - Vishay Siliconix |
1 / 5 page Document Number: 63146 For any questions, contact: foil@vishay.com www.vishay.com Revision: 06-May-08 1 VHP203 (Z-Foil) Vishay Foil Resistors Hermetically Sealed Miniature Ultra High Precision Z-Foil Technology Resistors with TCR of 0.05 ppm/°C, Tolerance of ± 0.001 % and Load Life Stability of ± 0.005 %, Unaffected by Humidity Any value available within resistance range INTRODUCTION The Z-foil based oil filled, hermetically sealed VHP203 resistor represents an industry breakthrough. The hermetic sealing eliminates the ingress of moisture and oxygen, while the oil acts as a thermal conductor, thus eliminating long term degradation of elements of unsealed resistors, while at the same time allowing the device to accept short periods of overload without degradation. The VHP203 is also available with laboratory and metrology level precision and long term stability with additional inhouse oriented process such as: special TCR plotting, chip stabilitzation inhouse thermal shock and bake prior to sealing, combined thermal shock and power conditioning on finished product, thermal and power conditioning, CLT. The Z-foil technology provides a significant reduction of the resistive components sensitivity to ambient temperature variations (TCR) and applied power changes (PCR). When combined with the hermetic sealing and oil filling, the VHP203 resistor become the most precise and stable resistor available. The value of the hermetic enclosure over the molded part is in long term performance. With accuracy of ± 0.001 % (10 ppm) and a resistance range from 10 Ω to 150 kΩ and long term shelf life of less than 2 ppm, this device is virtually a secondary standard that can be carried in sets for daily or periodic calibration of factory measurement equipment. Note 1. For lower TCR and for selected TCR tracking, please contact us FEATURES • Temperature coefficient of resistance (TCR): ± 0.05 ppm/°C (0 °C to 60 °C) • Power coefficient “ΔR due to self heating”: 5 ppm at rated power • Tolerance: to ± 0.001 % (10 ppm) • Load life stability: ± 0.002 % maximum ΔR (60 °C for 2000 h at 0.1 W per chip) • Electrostatic discharge (ESD) > 25 000 V • Resistance range: 10 Ω to 150 kΩ (higher or lower values of resistance available) • Power rating: 0.3 W at + 25 °C • Shelf life stability: 2 ppm for at least 10 years • Non inductive, non capacitive design • Non hot spot design • Rise time: 1.0 ns without ringing • Current noise: < - 40 dB • Thermal EMF: 0.05 µV/°C typical • Voltage coefficient: < 0.1 ppm/V • Non inductive: < 0.08 µH • Terminal finishes available: lead (Pb)-free tin/lead alloy • Impervious to harmful environments - oil filled • For better performances, please contact us • Prototype samples available from 24 h. For more information, please contact foil@vishay.com APPLICATIONS • Metrology • Laboratory • Industrial • Measurement * Pb containing terminations are not RoHS compliant, exemptions may apply TABLE 1 - TCR VS. RESISTANCE VALUE RESISTANCE VALUE ( Ω) TYPICAL TCR AND MAX. SPREAD (- 55 °C to + 125 °C, + 25 °C ref.) (ppm/°C)1) 100 to < 150K ± 0.2 ± 2 50 to < 100 ± 0.2 ± 3 10 to < 50 ± 0.2 ± 4 FIGURE 1 - TRIMMING TO VALUES (Conceptual Illustration) Available Pb-free RoHS* COMPLIANT Mutual Inductance Reduction due to Opposing Current in Adjacent Lines 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 |
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