VHP100 vishay foil resistors document number: 63003 for any questions, contact: foil@vishay.com www.vishay.com revision: 18-jun-07 1 ultra-high precision hermetically sealed bulk metal ? foil technology resistor with zero tcr and 0.005 % tolerance 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 temp erature 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. 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. features ? essentially zero tcr: al most zero resistance/ temperature effect ? absolute resistance change (window) : VHP100 < 60 ppm (- 55 c to + 125 c) vhp101 < 10 ppm (+ 15 c to + 45 c) ? tolerance: to 0.005 % ? no humidity effect : hermetically sealed 1) against moisture ? load life stability 2) : 20 ppm typical for 2000 hours, 70 c at 0.3 watts ? shelf life stability: 2 pp m 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 notes 1. oil filled as standard. air filled available upon request. 2. load-life stability can be cons iderably improved through in-house oriented tests. * pb containing terminations are not rohs compliant, exemptions may apply figure 1 - a typical VHP100 resistance temperature curve figure 2 - power derating curve a v aila b le p b -free rohs* compliant 60 ppm w indo w deviation ppm - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 temperature (c) + 100 % + 75 % + 50 % + 25 % 0 - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 ambient temperature ( c) percent of rated power - 55 c + 70 c rated po w er + 200
www.vishay.com for any questions, contact: foil@vishay.com document number: 63003 2 revision: 18-jun-07 VHP100 vishay foil resistors ultra-high precision hermet ically sealed bulk metal ? foil technology resistor with zero tcr and 0.005 % tolerance note 1. for 0.200 lead spacing, specify vhp102 (60 ppm) or vhp103 (10 ppm) . note 1. load/life stability is considerably improved by reducing the temperature, pow er, or through in-house oriented tests figure 3 - typical curves within the 60 ppm window, VHP100 tcr for mil range figure 4 - typical curves within 10 ppm window, vhp101 laboratory instrument range 60 ppm window deviation ppm - 55 - 25 0 + 25 + 50 + 75 + 100 + 125 temperature (c) (- 55 c to + 125 c): typical tcr = 0.6 ppm/c, ref. + 25 c deviation ppm + 15 + 20 + 25 + 30 + 35 + 40 + 45 + 50 10 ppm window (+ 15 c to + 45 c): typical tcr = 0.3 ppm/c, ref. + 25 c temperature (c) figure 5 - standard printing tolerance resistance specified in significant digits 1.0 % 3 0.1 % 4 0.01 % 5 0.005 % 6 note the number of significant digi ts of resistance accuracy to be printed on the resistor should be in accordance with the specified tolerance table 1 - VHP100 series dimensions inches mm VHP100 w 0.185 0.020 4.70 0.51 l 0.435 0.020 11.05 0.51 vhp101 h 0.430 0.020 10.92 0.51 ll 1.000 0.125 25.4 3.18 ls 1) 0.150 0.010 3.81 0.25 st 0.100 maximum 2.54 maximum e 0.070 maximum 1.78 maximum ls model number vishay xxxx VHP100 st h l date code w front view rear view lead material #22 awg (0.025 dia) solder coated copper resistance value code tolerance serial no. 100r01 0.01 % xxxx 10 week 01 year ll e table 2 - VHP100 specifications resistance range 100 to 150 k tolerance at + 25 c 0.005 % to 1.0 % power 0.3 w at + 70 c (see figure 2) load life stability 1) (for 2000 hours) 0.3 w at + 70 c; 0.015 % (150 ppm) maximum r 0.15 w at + 125 c; 0.015 % (150 ppm) maximum r shelf-life stability 0.0002 % (2 ppm) after 10 years thermal emf due to temperature difference between leads due to self-heating at 0.1 w 0.05 v/c 0 to 1 v high frequency operation rise/decay time inductance (l) capacitance (c) 1.0 ns for 1 k without ringing 0.1 h maximum; 0.08 h typical 1.0 pf maximum; 0.5 pf typical maximum working voltage 300 v voltage coefficient < 0.1 ppm/v current noise < 0.010 v (rms)/v (- 40 db) hermeticity 10 -7 atmospheric cc/seconds maximum
document number: 63003 for any questions, contact: foil@vishay.com www.vishay.com revision: 18-jun-07 3 VHP100 ultra-high precision hermet ically sealed bulk metal ? foil technology resistor with zero tcr and 0.005 % tolerance vishay foil resistors note * for non-standard requests, please contact application engineering. table 3 - global part number information new global part number: y007880k2500a9l (preferred part number format) denotes precision value aer* yr = k = k 0 = standard 9 = lead (pb)-free 1 - 999 = custom product code resistance tolerance packaging 0078 = VHP100 4078 = vhp101 5078 = vhp102 6078 = vhp103 v = 0.005 % t = 0.01 % q = 0.02 % a = 0.05 % b = 0.1 % c = 0.25 % d = 0.5 % f = 1.0 % 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 t 80k250 a b model termination resistance value tolerance packaging VHP100 vhp101 vhp102 vhp103 t = lead (pb)-free none = tin/lead alloy 80.25 k 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 = bulk 0788 k25 0 y0 a9 0 l 0
document number: 91000 www.vishay.com revision: 18-jul-08 1 disclaimer legal disclaimer notice vishay 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 fo r any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. vishay disclaims any and all li ability arising out of the use or application of any product describ ed herein or of any information provided herein to the maximum extent permit ted by law. the product specifications do not expand or otherwise modify vishay?s terms and conditions of purcha se, 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 medi cal, 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.
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