W209001FA Datasheet, PDF (2/3 Pages) IRC - a TT electronics Company. – Vitreous Enamelled Wirewound Resistors

IRC Wire and Film Technologies Division
Environmental Performance
Test
Load at commercial rating: 1000 Hours at room temperature
Dry heat: 1000 hours at 200°C
Shelf life: 12 months at room temperature
Short term overload
Climatic
Long term damp heat
Temperature rapid change
Resistance to solder heat
Vibration and bump
Noise (in a decade of frequency)
Insulation resistance
Dielectric withstanding voltage
Operating temperature range
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
µV/V
Ω
V
°C
Maximum
5
2
0.03
1.0
0.5
0.05
0.5
0.25
0.25
zero
>0.1GΩ
500 min.
-55 to +200
Typical
4
1
0.02
0.2
0.2
0.02
0.2
0.03
0.05
zero
>0.1GΩ
500 min.
Construction
A high purity ceramic substrate is assembled with
interference-fit end caps, to which are welded the
termination wires. The resistive element is wound
on the substrate and welded to the caps, and the
vitreous enamel protective coating is then applied.
Terminations
Copper-clad steel wire, nickel-plated and
solder-coated.
Marking
The resistors are legend-marked with type
reference, resistance value and tolerance.
Solvent resistance
The body protection and marking are resistant to
all normal industrial cleaning solvents suitable for
printed circuits.
Temperature Rise Curve
p
400
W21 W215 W22
W23
W24
300
200
100
0
5
10
15
20
Dissipation (watts)
General Note
IRC reserves the right to make changes in product specification without notice or liability.
All information is subject to IRC’s own data and is considered accurate at time of printing.
© IRC Wire and Film Technologies Division • 736 Greenway Road Boone, North Carolina 28607-1860
Telephone: [phone] • Facsimile: 828 264 8866 • Website: www.irctt.com
A subsidiary of
TT electronics plc
W20 Series Issue November 2006