H Series (Z-Foil) Vishay Foil Resistors Hermetically sealed 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 % FEATURES * Temperature Coefficient of Resistance (TCR): 0.05 ppm/C (0 C to 60 C) P R O D U C T * Power Coefficient "R due to self heating": 5 ppm at rated power * Tolerance: to 0.001 % Any value available within resistance range * Load Life Stability: 0.005 % (70 C for 2000 hours at rated power) * Electrostatic Discharge (ESD) > 25 000 Volts INTRODUCTION The Z-Foil based oil filled, hermetically sealed H-series resistors represent 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 elements of unsealed resistors, while at the same time allowing the device to accept short periods of overload without degradation. 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 H-series resistors become the most precise and stable resistors available. N E W With accuracies of 0.001 % and a resistance range from 5 to 1.1 M and long term shelf life of less than 2 ppm, these devices are virtually secondary standards that can be carried in sets for daily or periodic calibration of factory measurement equipment. * Resistance Range: 5 to 1.1 M (higher or lower values of resistance available) * Power Rating: 0.3 to 2.5 Watts at + 25 C (depending on model - see Table 2) * 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 V/C typical * Voltage Coefficient: < 0.1 ppm/V * Non Inductive: < 0.08 H * Terminal Finishes available: Lead (Pb)-free Tin/Lead Alloy * Impervious to harmful environments - oil filled * For better performances, please contact us FIGURE 1 - TRIMMING TO VALUES (Conceptual Illustration) TABLE 1 - TOLERANCE AND TCR VERSUS RESISTANCE VALUE RESISTANCE VALUE () TYPICAL TCR AND MAX. SPREAD (MIL RANGE) (ppm/C)* 100 to < 1M1 0.2 2 50 to < 100 0.2 3 5 to < 50 0.2 4 Interloop Capacitance Reduction in Series Mutual Inductance Reduction due to Change in Current Direction Current Path Before Trimming Current Path After Trimming Trimming Process Removes this Material from Shorting Strip Area Changing Current Path and Increasing Resistance Note * For lower TCR and for selected TCR tracking, please contact us NOTE: Foil shown in black, etched spaces in white SALES * ASIA/JAPAN: foilsales.asia@vishay.com * UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com * AMERICAS: foilsales.usa@vishay.com * GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com * FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com * ISRAEL: foilsales.israel@vishay.com www.vishay.com 1 For technical questions, contact: foil@vishay.com Document Number: 63120 Revision: 27-Nov-06 H Series (Z-Foil) Hermetically sealed Ultra High Precision Z-Foil Vishay Foil Resistors Technology Resistors with TCR of 0.05 ppm/C, Tolerance of 0.001 % and Load Life Stability of 0.005 % TABLE 2 - MODEL SELECTION STANDARD RESISTANCE MAXIMUM POWER AVERAGE TOLERANCE CONSTRUCTION WORKING RATING WEIGHT IN BRIEF TIGHTEST LOOSEST VOLTAGE2) at + 25 C GRAMS () (%) RESISTANCE RANGE () VHP202Z 10 to 66k 66K to 100K VHA412Z 10 to 66K 66K to 100K VHA414Z 5 to 120K > 120K to 200K VHA512Z* 5 to 180K 180K to 300K VHA516-4Z* VHA516-5Z* VHA516-6Z* 300 0.3 W 0.2 W 1.4 Oil-filled, tinned copper leads, nickel shell, kovar and glass header DIMENSIONS3) INCHES mm W: 0.185 0.020 L: 0.435 0.020 H: 0.430 0.020** LL: 1.000 0.125 LS: 0.150 0.0104) ST: 0.095 Max 4.70 0.51 11.05 0.51 10.92 0.51 25.4 3.18 3.81 0.25 2.41 Max P R O D U C T MODEL NUMBER 1K to 1) 0.001 0.1 500 to < 1K 0.0025 0.1 50 to < 500 0.005 0.1 0.01 0.1 30 to < 50 5 to 240K 0.02 0.1 20 to < 30 > 240K to 400K 10 to < 20 0.05 0.1 5 to 300K 0.1 0.1 5 to < 10 > 300K to 500K 5 to 360K > 360K to 600K VHA518-7Z* 0.3 W 0.2 W 4.6 L: 0.625 0.031 D: 0.375 0.031 LL: 1.000 Min 15.88 0.79 9.53 0.79 25.4 Min 350 0.5 W 0.3 W 7.3 L: 1.000 0.031 D: 0.375 0.031 LL: 1.000 Min 25.4 0.79 9.53 0.79 25.4 Min 350 0.75 W 0.4 W 6.3 L: 0.625 0.031 D: 0.500 0.031 LL: 1.000 Min 15.88 0.79 12.7 0.79 25.4 Min 500 1.0 W 0.5 W 1.25 W 0.6 W 1.5 W 0.7 W 9.2 L: 1.000 0.031 Oil-filled, D: 0.500 0.031 tinned copper LL: 1.000 Min leads, tinned brass shell, kovar and glass end bells 25.4 0.79 12.7 0.79 25.4 Min 600 1.75 W 0.8 W 2.0 W 0.9 W 2.25 W 1.0 W 2.5 W 1.1 W 2.5 W 1.2 W 13.5 L: 1.500 0.031 D: 0.500 0.031 LL: 1.000 Min 38.1 0.79 12.7 0.79 25.4 Min N E W 5 to 420K > 420K to 700K VHA518-8Z* 5 to 480K > 480K to 800K VHA518-9Z* 5 to 540K > 540K to 900K VHA518-10Z* 5 to 600K > 600K to 1.0M VHA518-11Z* 5 to 660K > 660K to 1.1M Notes * Available in a 4-lead terminal ** 0.375 H available See next page for numbered footnotes 250 FIGURE 2 - TYPICAL TCR CURVE Z-FOIL FIGURE 3 - POWER DERATING CURVE + 300 + 200 + 100 R 0 R (ppm) - 100 0.05 ppm/C - 200 - 0.1 ppm/C - 300 0.1 ppm/C 0.14 ppm/C - 400 0.2 ppm/C - 0.16 ppm/C - 500 - 55 - 25 0 + 25 + 60 + 75 + 100 + 125 Percent of Rated Power + 500 + 400 + 100 - 55 C + 75 + 50 + 25 0 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 Ambient Temperature (C) Ambient Temperature (C) SALES * ASIA/JAPAN: foilsales.asia@vishay.com * UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com * AMERICAS: foilsales.usa@vishay.com * GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com * FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com * ISRAEL: foilsales.israel@vishay.com Document Number: 63120 Revision: 27-Nov-06 For technical questions, contact: foil@vishay.com www.vishay.com 2 H Series (Z-Foil) Vishay Foil Resistors Hermetically sealed 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 % TABLE 3 - "H" SERIES SPECIFICATIONS Stability8) Load Life at 2000 hrs. 0.002 % maximum R at 0.1 Watt per chip and at + 60 C Shelf Life 2 ppm (0.0002 %) after at least 10 years Current Noise < 0.010 V (RMS)/Volt of applied voltage (- 40 dB) Rise/Decay Time Inductance P R O D U C T High Frequency Operation 1.0 ns at 1 k (L)5) 0.1 H maximum; 0.08 H typical Capacitance (C) 1.0 pF maximum; 0.5 pF typical < 0.1 ppm/V6) Voltage Coefficient Thermal EMF7) 0.1 V/C maximum; 0.05 V/C typical; 1 V/Watt maximum 10-7 Atmospheric cc/sec maximum Hermeticity TABLE 4 - ORDERING INFORMATION RESISTANCE VALUE MODEL RESISTANCE LETTER DESIGNATOR MULTIPLIER FACTOR R x 1.0 K x 103 M x 106 5 to < 1 k 100R01 = 100.01 VHP202Z 1 k to < 1 M 15K231 = 15.231 1 M to < 1.1 M 1M1000 = 1.1 M T = Lead (Pb)-free None = Tin/Lead ABSOLUTE TOLERANCE V = 0.005 % T = 0.01 % Q = 0.02 % A = 0.05 % B = 0.1 % C = 0.25 % D = 0.5 % F = 1.0 % PACKAGING B = Bulk Pack N E W Example: VHP202Z 120K50 TVB Model: VHP202Z Value: 120.5 k Termination: Lead (Pb)-free Tolerance: 0.005 % Packaging: Bulk Pack PLATING OF TERMINATIONS Notes 1. Upper end of resistance range varies with model selected (i.e. VHP202; the range is to 150 k; VHA518-10, the range is to 1.0 M) per Table 2 2. Not to exceed power rating of resistor 3. Insulating sleeve - a special case insulating plastic sleeve is available on VHA models - specify letter "P" as a suffix to model number (i.e. VHA412P) 4. 0.200" (5.08 mm) lead spacing available - specify VH202J 5. Inductance (L) due mainly to the leads 6. The resolution limit of existing test equipment (within measurement capability of the equipment, or "essentially zero") 7. V/ relates to EMF due to lead temperature difference and V/watt due to power applied to the resistor 8. Load life R max. can be reduced through burn-in procedure SALES * ASIA/JAPAN: foilsales.asia@vishay.com * UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@vishay.com * AMERICAS: foilsales.usa@vishay.com * GERMANY/CZECH REPUBLIC/AUSTRIA: foilsales.eucentral@vishay.com * FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com * ISRAEL: foilsales.israel@vishay.com www.vishay.com 3 For technical questions, contact: foil@vishay.com Document Number: 63120 Revision: 27-Nov-06 Legal Disclaimer Notice Vishay Notice Specifications of the products displayed herein are subject to change without notice. Vishay Intertechnology, Inc., or anyone on its behalf, assumes no responsibility or liability for any errors or inaccuracies. Information contained herein is intended to provide a product description only. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document. 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