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For technical questions in the Americas, contact foilsupport1@vishay.com For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com www.vishay.com VH Hermetic Vishay Foil Resistors Document Number: 63004 Revision 02-Mar-05 THROUGH HOLE SALES Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace

FEATURES

  • VH102K Series Nominal Temperature Coefficient of Resistance: – 0.3ppm/°C (0°C to + 25°C); + 0.3ppm/°C (+ 25°C to + 60°C); – 1.0ppm/°C (– 55°C to + 25°C); + 1.0ppm/°C (+ 25°C to + 125°C)
  • VHS102 Series Nominal Temperature Coefficient of Resistance: + 0.6ppm/°C (0°C to + 25°C); – 0.6ppm/°C (+ 25°C to + 60°C); + 2.2ppm/°C (– 55°C to + 25°C); – 1.8ppm/°C (+ 25°C to + 125°C)
  • VHS555 Temperature Coefficient of Resistance: ± 5ppm/°C (– 55°C to + 125°C);
  • Selected TCR Tracking: to 0.5ppm/ °C (matched sets)
  • Load-Life Stability: ± 0.0025% maximum ∆R at 0.1 watt, + 60°C, 2,000 hours (VHS555)
  • Power Rating: 0.6 Watts at + 70 °C; 0.3 Watts at + 125°C
  • Resistance Tolerance (Initial Resistance Accuracy): ± 0.005% tightest to ± 1.0% loosest
  • Resistance Range: 1 Ω to 150KΩ The "VH" series of resistors is the hermetic version of sev- eral molded "S" series devices. Hermetic sealing eliminates the ingress of both oxygen, which degrades resistors over long periods, and moisture which degrades resistors more quickly. These parts are made with glass to metal seal enclosures employing Kovar eyelets which allow the copper leads to pass through the enclosure to minimize the thermal EMF from the lead junctions. Rubber fill between the metal housing and resistance element acts both as a mechanical damper and thermal transfer path. VHS102 and VH102K are the hermetically-sealed counter- part of the S102C and S102K high-performance molded re- sistors. VHS555 is the hermetically-sealed version of the S555, MIL style RNC90Y. MODEL RESISTANCE STANDARD RESISTANCE MAXIMUM AMBIENT AVERAGE DIMENSIONS NUMBER RANGE TOLERANCE 1 % WORKING POWER RATING 3 †† WEIGHT (Ω) TIGHTEST LOOSEST VOLTAGE 2 @ + 70°C @ + 125 °C (GRAMS) INCHES mm VH102K* 30.1 to 150K ± 0.005 ± 1.0 20 to < 30.1 ± 0.01 ± 1.0 VHS102 10 to < 20 ± 0.05 ± 1.0 5 to < 10 ± 0.10 ± 1.0 VHS555† 30.1 to 150K ± 0.005 ± 1.0 1 to < 4.99 ± 0.25 ± 1.0 LS Model Number VISHA Y XXXX VHS555 ST H L Date Code W Front View Rear View Lead Material #22 AWG Round Solder Coated Copper Resistance Value Code Tolerance Serial No. (Optional Marking) 100R01 0.01% XXXX Week Year LL TABLE 1 - MODEL SELECTION FIGURE 1 - STANDARD IMPRINTING AND DIMENSIONS *Available from 1 ohm to 100K only. † Contains RNC90Y inside (4.99 ohms to 121 K). †† Above 100Kohms VHS102 power is derated to 0.4 W @ + 70 °C and 0.2 W @ + 125 °C **0.375H available. See the third page in this datasheet for numbered footnotes. Product may not be to scale W L H LL LS ST

0.185 Maximum

0.435 Maximum

0.430 Maximum**

1 ± 0.125 0.150 ± 0.0104

0.095 Maximum

4.70 Maximum

11.05 Maximum

10.92 Maximum

25.4 ± 3.18 3.81 ± 0.25

2.41 Maximum

For technical questions in the Americas, contact foilsupport1@vishay.com For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com Document Number: 63004 Revision 02-Mar-05 www.vishay.com VH Hermetic Vishay Foil Resistors THROUGH HOLE SALES TEMPERATURE COEFFICIENT OF RESISTANCE VH102K Nominal TCR6 (See Fig. 7 and 8 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal ® Foil Resistive Components.”) Maximum TCR (See Fig. 7 and 8 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal ® Foil Resistive Components.”) Selected9 TCR Tracking10 (Closest Spread) VHS102 Nominal TCR (See Fig. 1 and 2 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal ® Foil Resistive Components.”) Standard TCR Spread from Nominal 7 (See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal® Foil Resistive Components.”) Maximum TCR Spread from Nominal 14 (See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal® Foil Resistive Components.”) Selected9 TCR Tracking10 VHS555 Nominal TCR (See Fig. 1 and 2 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal ® Foil Resistive Components.”) Standard TCR Spread from Nominal 7 (See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal® Foil Resistive Components.”) Maximum TCR Spread from Nominal 8 (See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal® Foil Resistive Components.”) Selected8 TCR Tracking10 Stability14 Load Life at 2,000 hours. Load Life at 10,000 hours. Shelf Life Stability Current Noise High Frequency Operation Rise/Decay Time Inductance (L) Capacitance (C) Voltage Coefficient Thermal EMF Hermeticity – 0.3ppm/°C (0°C to + 25°C) – 1.0ppm/°C (– 55°C to + 25°C) + 1.0ppm/°C (+ 25°C to + 125°C) ± 2.5ppm/°C (0°C to + 25°C and + 25°C to + 60°C) ± 2.5ppm/°C (– 55°C to + 25°C and + 25°C to + 125°C) 0.5ppm/°C + 0.6ppm/°C( 0 °C to + 25°C) – 0.6ppm/°C (+ 25 °C to + 60°C) + 2.2ppm/°C (– 55 °C to + 25°C) – 1.8ppm/°C (+ 25 °C to + 125°C) ± 1.5ppm/°C( 0 °C to + 25°C and + 25°C to + 60°C) ± 2.0ppm/°C (– 55 °C to + 25°C and + 25°C to + 125°C) ± 2.5ppm/°C( 0 °C to + 25°C and + 25°C to + 60°C) ± 2.3ppm/°C (– 55 °C to + 25°C and + 25°C to + 125°C) 0.5ppm/°C + 0.6ppm/°C( 0 °C to + 25°C) + 2.2ppm/°C (– 55 °C to + 25°C) ± 1.5ppm/°C( 0 °C to + 25°C and + 25°C to + 60°C) ± 2.0ppm/°C (– 55 °C to + 25°C and + 25°C to + 125°C) ± 2.5ppm/°C( 0 °C to + 25°C and + 25°C to + 60°C) ± 2.3ppm/°C (– 55 °C to + 25°C and + 25°C to + 125°C) 0.5ppm/°C VH102K VHS102 VHS555 ± 5ppm (0.0005%) Maximum ∆R after 1 year ± 10ppm (0.001%) Maximum ∆R after 3 years < 0.010µV (RMS)/Volt of applied voltage (– 40dB) 1.0 ns at 1KΩ 0.1µH maximum; 0.08µH typical 1.0pF maximum; 0.5pF typical < 0.1ppm/V12 0.1µV/°C Maximum; 0.05µV/°C Typical 1µV/watt 10–7 Atmospheric cc/sec Maximum Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace TABLE 2 - “H” SERIES SPECIFICATIONS5

For technical questions in the Americas, contact foilsupport1@vishay.com For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com www.vishay.com VH Hermetic Vishay Foil Resistors Document Number: 63004 Revision 02-Mar-05 THROUGH HOLE SALES FIGURE 2 - POWER DERATING CURVE NOTES: 1. Standard Resistance Tolerance: ± 0.005%; ± 0.01%; 2. Not to exceed power rating of resistor. 3. See Figure 2 below. 4. 0.200" (5.08 mm) lead spacing available (except VHS555)– specify VH102J (S102C type), VH102L (S102K type). except TCR. (For TCR information see notes 6 -10.) Typical is a designers reference which represents that 85% of the units supplied, over a long period of time, will be at least the figure shown or better. 6. Vishay Nominal TCR is defined as the chord slopes of the relative change of resistance/temperature, expressed in ppm (parts per million), called (RT) curve from 0 °C to + 25°C and + 25°C to + 60°C (“Instrument” Range); and from – 55°C to + 25°C and + 25°C to + 125°C (“Military” Range). These specifications and the definition of Nominal TCR apply to all resistance values including low-value resistors. 7. Vishay Standard TCR Spread is defined as a designers reference which represents that at least 92% of the units, and 82% of the lots, supplied by Vishay will be within the stated band centered on the nominal curve. This definition of the Vishay Standard TCR Spread from Nominal applies to all resistance values. However, as the resistance value decreases below 80 ohms, the Vishay Standard TCR Spread from Nominal specification starts to increase. (See Figure 3 in data sheet “7 Technical Reasons to specify BMF Resistive Components.”) Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace 8. Vishay Maximum TCR Spread is defined as the 3 σ (Sigma) limit of a normal Gaussian distribution (99.73% of a production lot) which is within a band, centered on the nominal curve. This Vishay Maximum TCR Spread is no greater than ± 2.5ppm/°C from nominal throughout the full temperature range. This definition of the Vishay Maximum TCR Spread from Nominal applies to all resistance values. However, as the resistance value decreases below 80 ohms, the Vishay maximum TCR Spread from Nominal specification starts to increase. (See Figure 3 in datasheet “7 Technical Reasons to Specify Vishay Bulk Metal® Foil Resistive Components.”) 9. Selected TCR Tracking is available for specially ordered lots of resistors. The selected TCR tracking can be 3, 2, 1 and as close as 0.5ppm/°C throughout the full temperature range. 10. TCR tracking is a measure of the similarity of resistance value change in two or more resistors which are undergoing the same temperature changes. Tracking could be expressed as the difference in the temperature coefficients of the resistors, expressed in ppm/°C as (∆R1/R1 – ∆R2/R2) x 10-6/∆T°C. When a number of resistors are referenced to a nominal TCR, the spread or envelope around the nominal would be the difference. If the spread is ± 1.5ppm/°C about a nominal, the tracking, as defined above, will be 3ppm/°C. 11 Inductance (L) due mainly to the leads. 12. The resolution limit of existing test equipment (within the measurement capability of the equipment, or “essentially zero.”) 13. µV/°C relates to EMF due to lead temperature difference and µV/watt due to power applied to the resistor. 14. Load life ∆R Maximum can be reduced through burn-in procedure. +100 +75 +50 +25 –75 –50 –25 0 +25 +50 +75 +100 +125 +150 +175 +200 Ambient Temperature ( °C) Percent of Rated Power @ +125 °C –55°C +200 +70°C Double Rated Power Rated Power +175 +150 +125

For technical questions in the Americas, contact foilsupport1@vishay.com For technical questions in Asia/Japan/Europe/Africa/Israel, contact foilsupport2@vishay.com Document Number: 63004 Revision 02-Mar-05 www.vishay.com VH Hermetic Vishay Foil Resistors THROUGH HOLE SALES **Resistance Range limit of 100K Ω for VH102K, 150K Ω for VHS555, 150K Ω for VHS102. TABLE 3 - ENVIRONMENTAL PERFORMANCE COMPARISON See previous page for numbered footnotes. *These figures can be found in data sheet “7 Technical Reasons to Specify Bulk Metal ® Foil Resistive Components.” Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace MIL-PRF-55182/9 VH102K VHS102 VHS555 CHARACTERISTIC Y MAXIMUM ∆R TYPICAL5 ∆R TYPICAL 5 ∆R TYPICAL 5 ∆R Test Group I Thermal Shock ± 0.05% ± 0.002% ± 0.002% ± 0.002% Test Group II Resistance Temp Char. ± 5ppm/°C See Figures 7 & 8* See Figures 1 & 2, and Figures 5 & 6* Temp Storage ± 0.05% ± 0.005% ± 0.005% ± 0.0025 Low Temp Operation ± 0.05% ± 0.005% ± 0.005% ± 0.005% Terminal Strength ± 0.02% ± 0.002% ± 0.002% ± 0.002% Test Group III Insulation Resistance 10 4MΩ 40 x 105MΩ 40 x 105MΩ 40 x 105MΩ Resistance to Solder Heat ± 0.02% ± 0.002% ± 0.002% ± 0.002% Moisture Resistance ± 0.05% ± 0.005% ± 0.005% ± 0.005% Test Group IV Test Group V Life Test @ 0.3 W/+ 125°C Test Group Va Test Group VI High Temp Exposure ± 0.05% ± 0.05% ± 0.05% ± 0.04% Test Group VII Voltage Coefficient 0.0005%/V < 0.00001%/V < 0.00001%/V < 0.00001%/V Please specify Vishay VH102K, VHS102 and VHS555 resistors as follows: (See Imprinting Illustration and Table 1, 1st page in t his datasheet, for further details). Example: VHS555 100R01 0.01% MODEL NO. RESISTANCE VALUE TOLERANCE Resistance Value, in ohms, is expressed by a series of 6 characters, 5 of which represent significant digits while the 6th is a dual purpose letter that designates both the multiplier and the location of the comma or decimal. RESISTANCE LETTER MULTIPLIER RANGE** DESIGNATOR FACTOR EXAMPLE 1Ω to < 1KΩ R x 1 100R01 = 100.01 Ω 1KΩ to < 150KΩ Kx 1 0 3 15K231 = 15,231 Ω TABLE 4 - ORDERING INFORMATION

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 for 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 described 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.