RIEDON UPN2-0808

USN UPN 2-0808
Precision Foil Resistors
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Resistances from 100Ohm to 20kOhms
Power Rating to 0.2Watt
Resistance Tolerances to ±0.005%
TCR to ±0.5ppm/K
Load Stability to 0.001%
Twin Resistor Construction
SPECIFICATIONS
Type
USN 2-0808
Resistance Range
UPN 2-0808
100 Ohms to 20 kOhms
Variations
Double-resistor with middle-pin (R1-R2)
Power rating (70°C)
0.2W (R1+R2)
TolerancIes
Absolut
Ratio
from 0.005%
from 0.005%
from 0.02%
from 0.02%
Stability (Ratio)
0.001%
Shelf Life Stability
25ppm / ∆R after 1 year
50ppm / ∆R after 3 year
Temperature Coefficient
Absolut
Tracking
upon request
typ. ±3ppm/K
< 1.0ppm/K
< 0.5ppm/K
Insolation Resistance
typ. ±5ppm/K
< 2.0ppm/K
< 1.5ppm/K
> 10GOhm
Thermal EMF
< 0.1µV/K
Operating Temperature Range
-55 to 155°C
Resistor Material
NiCr-Foil
Substrate
Al2O3
Housing
Capsule / Epoxy
Connector Material
Cu tinned
Terminals
3
Ordering Information
Part Number - Resistance - Tolerance
USN 2-0808 2kOhms-4kOhms 0.01%
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com
Page 114
rev. 03/2006A
USN UPN 2-0808
Precision Foil Resistors
SPECIFICATIONS (continued)
Derating
Power (% from
nominal power)
120
100
80
60
40
20
0
25
40
55
70
85 100 115 130 145 155
Am bient Tem perature (°C)
Dimensions
Dimension
mm
tol.
(±mm)
inches
tol.
(±inches)
A
27.20
2.0
1.07
0.079
B
7.49
0.2
0.29
0.008
C
8.13
0.2
0.32
0.008
D
2.00
0.1
0.08
0.004
E
2.54
0.1
0.10
0.004
F
2.54
0.1
0.10
0.004
G
Ø0.64
0.1
Ø0.025
0.004
H
Riedon Inc.
300 Cypress Avenue
Marking of the position of the low ohmic resistor
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
www.riedon.com
Page 115
rev. 03/2006A