VHZ

VHZ Hermetic Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace FEATURES • VH102Z Series Nominal Temperature Coefficient of Resistance: ± 0.2ppm/°C MIL Range (see table 2) • VHZ555 Temperature Coefficient of Resistance: ± 2ppm/°C (– 55°C to + 125°C); • Selected TCR Tracking: to 0.5ppm/°C (matched sets) The "VHZ" series of resistors is the hermetic version of the molded "Z" 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. VH102Z is the hermetically-sealed counterpart of the Z201 high-performance molded resistors. VHZ555 is the hermetically-sealed version of the Z555, MIL style RNC90Z. • Load-Life Stability: ± 0.0025% maximum ∆R at 0.1 watt, + 60°C, 2,000 hours (VHZ555) • 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: VH102Z: 100R to 100K VHZ555: 4R99 to 121K Product may not be to scale THROUGH HOLE TABLE 1 - MODEL SELECTION MODEL NUMBER VH102Z RESISTANCE RANGE (Ω) 100R to 100K STANDARD RESISTANCE MAXIMUM AMBIENT TOLERANCE1 % WORKING POWER RATING3 †† TIGHTEST LOOSEST VOLTAGE2 at + 70°C at + 125°C ± 0.005 ± 1.0 ± 1.0 ± 1.0 ± 1.0 ± 1.0 ± 1.0 AVERAGE WEIGHT (GRAMS) W L H LL DIMENSIONS INCHES 0.185 Maximum 0.435 Maximum 0.430 Maximum** 1 ± 0.125 mm 4.70 Maximum 11.05 Maximum 10.92 Maximum 25.4 ± 3.18 3.81 ± 0.25 2.41 Maximum 300 0.6 W 0.3 W 1.4 VHZ555 30.1 to 121K 20 to < 30.1 4.99 to < 20 ± 0.005 ± 0.01 ± 0.05 LS 0.150 ± 0.0104 ST 0.095 Maximum **0.375H available. FIGURE 1 - STANDARD IMPRINTING AND DIMENSIONS Front View L VISHAY XXXX VH102Z Rear View W 100R01 0.01% XXXX ST Date Code 01 10 Year Week LS Lead Material #22 AWG Round Solder Coated Copper LL Resistance Value Code Tolerance Serial No. (Optional Marking) H Model Number SALES • AMERICAS: foilsales.usa@vishay.com • ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@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: 63063 Revision 12-Dec-05 For technical questions, contact: foil@vishay.com www.vishay.com 77 VHZ Hermetic Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace TABLE 2 - “HZ” SERIES SPECIFICATIONS5 TEMPERATURE COEFFICIENT OF RESISTANCE Nominal TCR6 (- 55°C to + 125°C) +100 +50 R 0 R (PPM) -50 -100 -50 -55 -25 0 +25 +50 0.2ppm/°C 0.2PPM/°C +75 +100 +125 THROUGH HOLE The TCR is obtained by the process capability and does not rely on a selection process. It does not vary from lot to lot nor by ohmic values. VH102Z Maximum TCR (- 55°C to + 125°C, + 25°C - ref) VHZ555 Maximum TCR (- 55°C to + 125°C, + 25°C - ref) ± 0.8ppm/°C ± 3ppm/°C for values 4R99 to 25R ± 2.5ppm/°C for values 25R to 80R ± 2ppm/°C for values > 80R 0.5ppm/°C VH102Z ± 0.025% ± 0.005% ± 0.02% ± 5ppm ±10ppm (0.0005%) (0.001%) VHZ555 ± 0.015% ± 0.0025 ± 0.01% Selected7 TCR Tracking8 (closest spread) Stability9 Load Life at 2,000 hours. Load Life at 10,000 hours. Shelf Life Stability at 0.3W/+ 125°C at 0.1W/+ 80°C at 0.05W/+ 125°C Maximum ∆R after 1 year Maximum ∆R after 3 years Current Noise High Frequency Operation Rise/Decay Time Inductance (L)10 Capacitance (C) Voltage Coefficient Thermal EMF12 Hermeticity < 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/V11 0.1µV/°C Maximum; 0.05µV/°C Typical 1µV/watt 10–7 Atmospheric cc/sec Maximum SALES • AMERICAS: foilsales.usa@vishay.com • ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@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 78 For technical questions, contact: foil@vishay.com Document Number: 63063 Revision 12-Dec-05 VHZ Hermetic Bulk Metal® Foil Technology Vishay Foil Resistors Hermetically Sealed Resistors, Aerospace NOTES: 1. Standard Resistance Tolerance: ± 0.005%; ± 0.01%; ± 0.02%; ± 0.05%; ± 0.1%; ± 0.25%; ± 0.5%; ± 1.0%. 2. Not to exceed power rating of resistor. 3. See Figure 2 below. 4. 0.200" (5.08 mm) lead spacing available for VH102Z, specify VH102ZL. 5. Maximum is 1.0% A.Q.L. standard for all specifications except TCR. (For TCR information see notes 6 -8.) 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. 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. 8 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 a s t h e d i f f e r e n c e i n t h e 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. 9. Load life ∆ R Maximum can be reduced through inhouse procedures. 10. Inductance (L) due mainly to the leads. 11. The resolution limit of existing test equipment (within the measurement capability of the equipment, or “essentially zero.”) 12. µV/°C relates to EMF due to lead temperature difference and µV/watt due to power applied to the resistor. THROUGH HOLE FIGURE 2 - POWER DERATING CURVE –55°C +200 +70°C Double Rated Power Percent of Rated Power @ +125°C +175 +150 +125 Rated Power +100 +75 +50 +25 0 – 75 –50 –25 0 +25 +50 +75 +100 +125 +150 +175 +200 Ambient Temperature (°C) SALES • AMERICAS: foilsales.usa@vishay.com • ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@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: 63063 Revision 12-Dec-05 For technical questions, contact: foil@vishay.com www.vishay.com 79 VHZ Hermetic Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Resistors, Aerospace TABLE 3 - ENVIRONMENTAL PERFORMANCE COMPARISON MIL-PRF-55182/9 CHARACTERISTIC Y MAXIMUM ∆R Test Group I Thermal Shock Overload Test Group II Resistance Temp Char. Temp Storage Low Temp Operation Terminal Strength Test Group III DWV Insulation Resistance Resistance to Solder Heat Moisture Resistance Test Group IV Shock Vibration Test Group V Life Test @ 0.3 W/+ 125°C 2,000 Hours 10,000 Hours Test Group Va + 70°C Power Rating Test Group VI High Temp Exposure Test Group VII Voltage Coefficient VH102Z TYPICAL5 ∆R VHZ555 TYPICAL5 ∆R ± 0.05% ± 0.05% ± 0.002% ± 0.003% ± 0.002% ± 0.003% THROUGH HOLE ± 5ppm/°C ± 0.05% ± 0.05% ± 0.02% See Table 2 ± 0.005% ± 0.005% ± 0.002% See Table 2 ± 0.0025 ± 0.005% ± 0.002% ± 0.02% 104MΩ ± 0.02% ± 0.05% ± 0.005% 40 x 105MΩ ± 0.002% ± 0.005% ± 0.002% 40 x 105MΩ ± 0.002% ± 0.005% ± 0.01% ± 0.02% ± 0.002% ± 0.002% ± 0.002% ± 0.002% ± 0.05% ± 0.5% ± 0.03% ± 0.05% ± 0.01% ± 0.02% ± 0.05% ± 0.02% ± 0.02% ± 0.05% ± 0.05% ± 0.04% 0.0005%/V < 0.00001%/V < 0.00001%/V See previous page for numbered footnotes. TABLE 4 - ORDERING INFORMATION Please specify Vishay VH102Z and VHZ555 resistors as follows: (See Imprinting Illustration and Table 1, 1st page in this data sheet, for further details). Example: VH102Z MODEL NO. 100R01 RESISTANCE VALUE 0.01% 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 RANGE** LETTER DESIGNATOR MULTIPLIER FACTOR x1 x 103 EXAMPLE 100R01 = 100.01Ω 15K231 = 15.231Ω 100Ω to < 1KΩ R 1KΩ to < 100KΩ K **Resistance Range limit for VHZ555: 4R99 to 121K. SALES • AMERICAS: foilsales.usa@vishay.com • ASIA/JAPAN: foilsales.asia@vishay.com • UK/HOLLAND/SCANDINAVIA: foilsales.eunorth@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 80 For technical questions, contact: foil@vishay.com Document Number: 63063 Revision 12-Dec-05 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