H Series
Vishay Foil Resistors
Hermetically Sealed High Precision Bulk Metal® Foil
Technology Resistors with TCR of 2 ppm/°C, Tolerance
of 0.001 % and Load Life Stability of 0.005 %
FIGURE 4 - STANDARD IMPRINTING AND DIMENSIONS
Front View
Rear View
Lead Material #22 AWG
Round Solder Coated Copper
L
W
Resistance
Value Code
VISHAY
XXXX
D
VISHAY
XXXX
VHP202
100R01
0.01%
XXXX
Tolerance
H
Model
Number
Date Code
Serial No.
L
LL
07
10
Year Week
ST
Model No.
Date Code
LL
VHA412
07
06
100R01 0.005%
Year Week
Lead Material
Resistance
Value Code
Tolerance
#22 AWG Round
LS
Solder Coated Copper
TABLE 3 - “H” SERIES SPECIFICATIONS
Stability8)
Load life at 2000 h
Shelf life
0.002 % maximum ΔR at 0.1 W per chip and at + 60 °C
2 ppm (0.0002 %) for at least 10 years
< - 40 dB
Current Noise
High Frequency Oꢁeration
Rise time
1.0 ns without ringing
Inductance (L)5)
Capacitance (C)
Voltage Coefficient
Thermal EMF7)
Hermeticity
0.1 µH maximum; 0.08 µH typical
1.0 pF maximum; 0.5 pF typical
< 0.1 ppm/V6)
0.1 µV/°C maximum; 0.05 µV/°C typical; 1 µV/W maximum
10-7 atmospheric cc/s maximum
Notes
1. Upper end of resistance range varies with model selected (i.e. VHP202; the range is to 150 k
2. Not to exceed power rating of resistor
Ω; VHA518-10, the range is to 1M67 Ω) per table 2
3. Insulating sleeve - a special case insulating plastic sleeve is available on VHA models. See table 4 for instructions on how to specify
4. 0.200 (5.08 mm) lead spacing available - specify VH202J
"
5. Inductance (L) due mainly to the leads
6. The resolution limit of existing test equipment (within measurement capability of the equipment, or “essentially zero”)
7. µV/°C relates to EMF due to lead temperature difference and µV/W due to power applied to the resistor
8. Load life ΔR maximum. Can be reduced through in-house oriented processes
Document Number: 63006
Revision: 14-Nov-07
For any questions, contact: foil@vishay.com
www.vishay.com
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