VH Hermetic
Vishay Foil Resistors
Bulk Metal® Foil Technology
Hermetically Sealed Resistors, Aerospace
TABLE 2 - “H” SERIES SPECIFICATIONS5
TEMPERATURE COEFFICIENT OF RESISTANCE
VH102K
Nominal TCR6
– 0.3ppm/°C (0°C to + 25°C)
+ 0.3ppm/°C (+ 25° to + 60°C)
– 1.0ppm/°C (– 55°C to + 25°C)
+ 1.0ppm/°C (+ 25°C to + 125°C)
(See Fig. 7 and 8 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Maximum TCR
± 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)
(See Fig. 7 and 8 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Selected9 TCR Tracking10
(Closest Spread)
0.5ppm/°C
VHS102
Nominal TCR6
+ 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)
(See Fig. 1 and 2 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Standard TCR Spread from Nominal7
(See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
± 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)
Maximum TCR Spread from Nominal14
(See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Selected9 TCR Tracking10
± 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
VHS555
Nominal TCR6
+ 0.6ppm/°C (0°C to + 25°C)
– 0.6ppm/°C (+ 25° to + 60°C)
+ 2.2ppm/°C (– 55°C to + 25°C)
– 1.8ppm/°C (+ 25° to + 125°C)
(See Fig. 1 and 2 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Standard TCR Spread from Nominal7
(See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
Maximum TCR Spread from Nominal8
± 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)
(See Fig. 5 and 6 in datasheet “7 Technical Reasons to Specify
Vishay Bulk Metal® Foil Resistive Components.”)
± 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)
Selected8 TCR Tracking10
Stability14
0.5ppm/°C
VH102K
± 0.025%
± 0.005%
VHS102
± 0.025%
± 0.005%
VHS555
± 0.015%
± 0.0025%
Load Life at 2,000 hours.
@ 0.3W/+ 125°C
@ 0.1W/+ 60°C
Load Life at 10,000 hours.
± 0.02%
± 0.02%
± 0.01%
@ 0.05W/+ 125°C
Shelf Life Stability
± 5ppm
± 10ppm
(0.0005%)
(0.001%)
Maximum ∆R after 1 year
Maximum ∆R after 3 years
Current Noise
< 0.010µV (RMS)/Volt of applied voltage (– 40dB)
High Frequency Operation
Rise/Decay Time
1.0 ns at 1KΩ
0.1µH maximum; 0.08µH typical
1.0pF maximum; 0.5pF typical
Inductance (L)11
Capacitance (C)
< 0.1ppm/V12
Voltage Coefficient
Thermal EMF13
Hermeticity
0.1µV/°C Maximum; 0.05µV/°C Typical 1µV/watt
10–7 Atmospheric cc/sec Maximum
SALES
• ISRAEL: foilsales.israel@vishay.com
• FRANCE/SWITZERLAND/SOUTHERN EUROPE: foilsales.eusouth@vishay.com
• 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
www.vishay.com
78
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
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