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USR 2-0808
Precision Foil Resistors
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Resistances from 1Ohm to 300kOhms
Power Rating to 0.6 Watts
Resistance Tolerances to ±0.005%
TCR to ±1ppm/°C
Load Stability to 0.01%
SPECIFICATIONS
Type
Resistance Range
Power rating (70°C)
Tolerances
from 1.0 Ohms
from 5.0 Ohms
from 12.0 Ohms
from 25.0 Ohms
from 100.0 Ohms
Stability
Shelf Life Stability
Temperature Coefficient
Insolation Resistance
Thermal EMF
Operating Temperature Range
Resistor Material
Substrate
Housing
Connector Material
Terminals
USR 2-0808
1.0 to 300 kOhms
0.6W (<100 kOhms)
0.4W (>100 kOhms)
0.5% / 1%
0.05% / 0.1% / 0.25% / 0.5% / 1%
0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.005% / 0.01% / 0.02% / 0.05% / 0.1% / 0.25% / 0.5% / 1%
0.01%
25ppm / ?R after 1 year
50ppm / ?R after 3 year
max. ±5ppm/°C (-55 to 155°C)
typ. ±3ppm/°C (-55 to 125°C)
upon request ±1ppm/°C (0 to 60°C)
and ±1ppm/°C (-55 to 125°C)
> 10GOhm
< 0.1μV/°C
-55 to 155°C
NiCr-Foil
Al 2 O 3
PBTP / Epoxy
Cu tinned
2
Ordering Information
Part Description: Part Type - Resistance - Grid Type -
Tolerance - TCR
Example: USR 2-0808 478 kOhms D 0.1% 5ppm
Grid D = 3.81mm (0.15inches) Lead Spacing
Grid J = 5.08mm (0.2inches) Lead Spacing
If none specified, Grid D is default
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
6/13
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