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| VHP100 Vishay Foil Resistors Ultra-High Precision Hermetically Sealed Bulk Metal(R) Foil Technology Resistor with Zero TCR and 0.005 % Tolerance FEATURES * Essentially Zero TCR: almost zero resistance/ Pb-free temperature effect Available * Absolute Resistance Change (window): RoHS* VHP100 < 60 ppm (- 55 C to + 125 C) COMPLIANT VHP101 < 10 ppm (+ 15 C to + 45 C) * Tolerance: to 0.005 % * No Humidity Effect: Hermetically Sealed1) against Moisture * Load Life Stability2): 20 ppm typical for 2000 hours, 70 C at 0.3 Watts * Shelf Life Stability: 2 ppm after at least 10 years * Resistance Range: 100 to 150 k (other values available on request) * * * * * * * * * Electrostatic Discharge (ESD) above 25 000 Volts Non Inductive, Non Capacitive Design Current Noise: < - 40 dB Thermal EMF: 0.05 V/C Voltage Coefficient: < 0.1 ppm/V Inductance: < 0.08 H Non Hot Spot Design Hermeticity: 10-7 atmospheric cc/seconds max Terminal Finishes available: Lead (Pb)-free Tin/Lead Alloy Any value available within resistance range Vishay has achieved an essentially zero temperature coefficient resistor in the VHP100 family. This oil filled hermetically sealed device makes unique use of foil on ceramic in such a way that self cancelling responses to temperature are produced by combining equal and opposite effects. This product is sold only in hermetic packages because applications requiring this level of temperature stability require humidity stability as well. The value of the hermetic enclosure over the molded part is in the long term performance. The hermetic sealing prevents the ingress of moisture and oxygen, while the oil acts as a thermal conductor. WINDOW DEFINITION The TCR of the VHP100 is so small that an additional definition - window, has been introduced. The window definition requires that the absolute resistance remain within the stated window over the temperature range specified. The resistance of the VHP100 resistor stays within a 60 ppm window over the entire military temperature range of - 55 C to + 125 C (Figures 1 and 3). A window of 10 ppm is available for the laboratory instrument range (+ 15 C to + 45 C); see Figure 4 - type VHP101. Notes 1. Oil filled as standard. Air filled available upon request. 2. Load-life stability can be considerably improved through in-house oriented tests. FIGURE 1 - A TYPICAL VHP100 RESISTANCE TEMPERATURE CURVE Deviation ppm 60 ppm Window - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 TRACKING Tracking of the VHP100 resistor is also vastly superior to conventional precision resistors. Typical 5 ppm/C precision resistors have a worst-case tracking of 10 ppm/C (wirewounds) or a difference between resistors of 1000 ppm (10 ppm/C x 100 C) when temperature changes from + 25 C to + 125 C. For a 3 ppm/C tracking (Vishay S102C) the difference will be 300 ppm (3 ppm/C x 100 C) for the same temperature range. The VHP100 resistors will track to 60 ppm from - 55 C to + 125 C, a five-fold improvement over the S102C resistor. Temperature (C) FIGURE 2 - POWER DERATING CURVE Percent of Rated Power - 55 C + 100 % + 75 % + 50 % + 25 % 0 - 75 + 70 C Rated Power - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 + 200 Ambient Temperature (C) * Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 63003 Revision: 18-Jun-07 For any questions, contact: foil@vishay.com www.vishay.com 1 VHP100 Vishay Foil Resistors Ultra-High Precision Hermetically Sealed Bulk Metal(R) Foil Technology Resistor with Zero TCR and 0.005 % Tolerance FIGURE 3 - TYPICAL CURVES WITHIN THE 60 ppm WINDOW, VHP100 TCR FOR MIL RANGE FIGURE 5 - STANDARD PRINTING Front View L VISHAY XXXX VHP100 Rear View W 100R01 0.01 % XXXX Resistance Value Code Tolerance Serial No. ST H Deviation ppm (- 55 C to + 125 C): Typical TCR = 0.6 ppm/C, Ref. + 25 C 60 ppm Window - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 Model Number E LL Date Code 01 10 Year Week LS Lead Material #22 AWG (0.025 Dia) Solder Coated Copper Temperature (C) TOLERANCE 1.0 % 0.1 % 0.01 % 0.005 % RESISTANCE SPECIFIED IN SIGNIFICANT DIGITS 3 4 5 6 FIGURE 4 - TYPICAL CURVES WITHIN 10 ppm WINDOW, VHP101 LABORATORY INSTRUMENT RANGE Note The number of significant digits of resistance accuracy to be printed on the resistor should be in accordance with the specified tolerance TABLE 1 - VHP100 SERIES DIMENSIONS Deviation ppm (+ 15 C to + 45 C): Typical TCR = 0.3 ppm/C, Ref. + 25 C VHP100 10 ppm Window VHP101 + 15 + 20 + 25 + 30 + 35 + 40 + 45 + 50 Temperature (C) W L H LL LS1) ST E INCHES 0.185 0.020 0.435 0.020 0.430 0.020 1.000 0.125 0.150 0.010 0.100 Maximum 0.070 Maximum mm 4.70 0.51 11.05 0.51 10.92 0.51 25.4 3.18 3.81 0.25 2.54 Maximum 1.78 Maximum Note 1. For 0.200 lead spacing, specify VHP102 (60 ppm) or VHP103 (10 ppm). TABLE 2 - VHP100 SPECIFICATIONS Resistance Range Tolerance at + 25 C Power Load Life Stability1) (for 2000 hours) Shelf-Life Stability Thermal EMF Due to temperature difference between leads Due to self-heating at 0.1 W High Frequency Operation Rise/Decay Time Inductance (L) Capacitance (C) Maximum Working Voltage Voltage Coefficient Current Noise Hermeticity 100 to 150 k 0.005 % to 1.0 % 0.3 W at + 70 C (see figure 2) 0.3 W at + 70 C; 0.015 % (150 ppm) Maximum R 0.15 W at + 125 C; 0.015 % (150 ppm) Maximum R 0.0002 % (2 ppm) after 10 years 0.05 V/C 0 to 1 V 1.0 ns for 1 k without ringing 0.1 H Maximum; 0.08 H typical 1.0 pF Maximum; 0.5 pF typical 300 V < 0.1 ppm/V < 0.010 V (rms)/V (- 40 dB) 10-7 atmospheric cc/seconds maximum Note 1. Load/life stability is considerably improved by reducing the temperature, power, or through in-house oriented tests www.vishay.com 2 For any questions, contact: foil@vishay.com Document Number: 63003 Revision: 18-Jun-07 VHP100 Ultra-High Precision Hermetically Sealed Bulk Metal(R) Foil Vishay Foil Resistors Technology Resistor with Zero TCR and 0.005 % Tolerance TABLE 3 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y007880K2500A9L (preferred part number format) DENOTES PRECISION Y VALUE R= K = k AER* 0 = Standard 9 = Lead (Pb)-free 1 - 999 = Custom Y 0 0 7 8 8 0 K 2 5 0 0 A 9 L PRODUCT CODE 0078 = VHP100 4078 = VHP101 5078 = VHP102 6078 = VHP103 RESISTANCE 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 L = Bulk FOR EXAMPLE: ABOVE GLOBAL ORDER Y0078 80K2500 A 9 L: TYPE: VHP100 VALUE: 80.25 k ABSOLUTE TOLERANCE: 0.05 % TERMINATION: Lead (Pb)-free PACKAGING: Bulk HISTORICAL PART NUMBER: VHP100T 80K250 A B (will continue to be used) VHP100 MODEL VHP100 VHP101 VHP102 VHP103 T TERMINATION T = Lead (Pb)-free None = Tin/Lead alloy 80K250 RESISTANCE VALUE 80.25 k A 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 % B PACKAGING B = Bulk Note * For non-standard requests, please contact Application Engineering. Document Number: 63003 Revision: 18-Jun-07 For any questions, contact: foil@vishay.com www.vishay.com 3 Legal Disclaimer Notice Vishay Disclaimer All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners. Document Number: 91000 Revision: 18-Jul-08 www.vishay.com 1 |
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