Hermetically sealed Ultra High Precision Z-Foil Technology Resistors w

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Hermetically sealed Ultra High Precision Z-Foil Technology Resistors w

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Series (Z-Foil)
Hermetically sealed Ultra High Precision Z-Foil Technology Resistors with 0.05 ppm/°C, Tolerance 0.001 Load Life Stability 0.005
Temperature Coefficient Resistance (TCR):
0.05 ppm/°C
value available within resistance range
INTRODUCTION
Z-Foil based filled, hermetically sealed H-series resistors represent industry breakthrough. hermetic sealing eliminates ingress moisture oxygen, while acts thermal conductor, thus eliminating long term degradation elements unsealed resistors, while same time allowing device accept short periods overload without degradation. Z-Foil technology provides significant reduction resistive components sensitivity ambient temperature variations (TCR) applied power changes (PCR). When combined with hermetic sealing filling, H-series resistors become most precise stable resistors available. With accuracies 0.001 resistance range from long term shelf life less than ppm, these devices virtually secondary standards that carried sets daily periodic calibration factory measurement equipment.
RESISTANCE VALUE
TABLE TOLERANCE VERSUS RESISTANCE VALUE
TYPICAL MAX. SPREAD (MIL RANGE) (ppm/°C)*
Mutual Inductance Reduction Change Current Direction Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path Increasing Resistance Current Path Before Trimming
Note lower selected tracking, please contact
NOTE: Foil shown black, etched spaces white
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technical questions, contact: foil@vishay.com
Tolerance: 0.001 Electrostatic Discharge (ESD) Volts Shelf Life Stability: least years Inductive, Capacitive design spot design Rise Time: without ringing Current Noise: Thermal EMF: 0.05 µV/°C typical Voltage Coefficient: ppm/V Inductive: 0.08 Terminal Finishes available: Lead (Pb)-free Tin/Lead Alloy Impervious harmful environments filled better performances, please contact
Power Coefficient self heating": rated power
Load Life Stability: 0.005 2000 hours rated power) Resistance Range: (higher lower values resistance available) Power Rating: Watts (depending model Table
FIGURE TRIMMING VALUES (Conceptual Illustration)
Interloop Capacitance Reduction Series
Document Number: 63120 Revision: 27-Nov-06
Series (Z-Foil)
Hermetically sealed Ultra High Precision Z-Foil Vishay Foil Resistors Technology Resistors with 0.05 ppm/°C, Tolerance 0.001 Load Life Stability 0.005
TABLE MODEL SELECTION
MODEL NUMBER VHP202Z RESISTANCE RANGE 100K STANDARD RESISTANCE MAXIMUM POWER AVERAGE TOLERANCE CONSTRUCTION WORKING RATING WEIGHT BRIEF TIGHTEST LOOSEST VOLTAGE2) GRAMS Oil-filled, tinned copper leads, nickel shell, kovar glass header DIMENSIONS3) INCHES 0.185 0.020 0.435 0.020 0.430 0.020** 1.000 0.125 0.150 0.0104) 0.095 0.625 0.031 0.375 0.031 1.000 4.70 0.51 11.05 0.51 10.92 0.51 25.4 3.18 3.81 0.25 2.41 15.88 0.79 9.53 0.79 25.4
VHA412Z
100K 120K 120K 200K 180K 180K 300K
VHA414Z
VHA512Z*
VHA516-4Z* VHA516-5Z* VHA516-6Z* VHA518-7Z*
0.001 0.0025 0.005 0.01 240K 0.02 240K 400K 0.05 300K 300K 500K 360K 360K 600K
420K 420K 700K VHA518-8Z* 480K 480K 800K VHA518-9Z* 540K 540K 900K VHA518-10Z* 600K 600K 1.0M VHA518-11Z* 660K 660K 1.1M Notes Available 4-lead terminal 0.375 available next page numbered footnotes
FIGURE TYPICAL CURVE Z-FOIL
Percent Rated Power
(ppm)
0.05 ppm/°C
ppm/°C
ppm/°C 0.14 ppm/°C ppm/°C
0.16 ppm/°C
Ambient Temperature (°C)
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Document Number: 63120 Revision: 27-Nov-06
1.000 0.031 0.375 0.031 1.000 0.625 0.031 0.500 0.031 1.000 0.75 1.25 1.75 2.25 1.000 0.031 Oil-filled, 0.500 0.031 tinned copper 1.000 leads, tinned brass shell, kovar glass bells 1.500 0.031 0.500 0.031 1.000 13.5
25.4 0.79 9.53 0.79 25.4 15.88 0.79 12.7 0.79 25.4 25.4 0.79 12.7 0.79 25.4
38.1 0.79 12.7 0.79 25.4
FIGURE POWER DERATING CURVE
Ambient Temperature (°C)
technical questions, contact: foil@vishay.com
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Series (Z-Foil)
Hermetically sealed Ultra High Precision Z-Foil Technology Resistors with 0.05 ppm/°C, Tolerance 0.001 Load Life Stability 0.005
TABLE SERIES SPECIFICATIONS
Stability8) Load Life 2000 hrs. Shelf Life Current Noise High Frequency Operation Rise/Decay Time Inductance (L)5) 0.002 maximum Watt chip (0.0002 after least years 0.010 (RMS)/Volt applied voltage
Capacitance Voltage Coefficient Thermal EMF7) Hermeticity
TABLE ORDERING INFORMATION
MODEL RESISTANCE 100R01 100.01 VHP202Z 15K231 15.231 1M1000 Example: VHP202Z 120K50 Model: VHP202Z Value: 120.5 Termination: Lead (Pb)-free Tolerance: 0.005 Packaging: Bulk Pack LETTER DESIGNATOR
Notes
Upper resistance range varies with model selected (i.e. VHP202; range VHA518-10, range Table exceed power rating resistor
Insulating sleeve special case insulating plastic sleeve available models specify letter suffix model number (i.e. VHA412P) 0.200" (5.08 lead spacing available specify VH202J Inductance mainly leads
resolution limit existing test equipment (within measurement capability equipment, "essentially zero") µV/° relates lead temperature difference µV/watt power applied resistor Load life max. reduced through burn-in procedure
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technical questions, contact: foil@vishay.com
maximum; 0.08 typical maximum; typical ppm/V6) µV/°C maximum; 0.05 µV/°C typical; µV/Watt maximum 10-7 Atmospheric cc/sec maximum RESISTANCE VALUE MULTIPLIER FACTOR PLATING TERMINATIONS ABSOLUTE TOLERANCE PACKAGING Lead (Pb)-free None Tin/Lead 0.005 0.01 0.02 0.05 0.25 Bulk Pack Document Number: 63120 Revision: 27-Nov-06
Legal Disclaimer Notice
Vishay
Notice
Specifications products displayed herein subject change without notice. Vishay Intertechnology, Inc., anyone behalf, assumes responsibility liability errors inaccuracies. Information contained herein intended provide product description only. license, express implied, estoppel otherwise, intellectual property rights granted this document. Except provided Vishay's terms conditions sale such products, Vishay assumes liability whatsoever, disclaims express implied warranty, relating sale and/or Vishay products including liability warranties relating fitness particular purpose, merchantability, infringement patent, copyright, other intellectual property right. products shown herein designed medical, life-saving, life-sustaining applications. Customers using selling these products such applications their risk agree fully indemnify Vishay damages resulting from such improper sale.
Document Number: 91000 Revision: 08-Apr-05
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Hermetically sealed Ultra High Precision Z-Foil Technology Resistors w

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