OAR3R015FLF Datasheet, PDF (3/4 Pages) List of Unclassifed Manufacturers – Open Air Resistor Metal Element Current Sense

OAR
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OAR & OAR-TP Series
Make Possible
Power Derating
The typical power derating curves are based on conservative design concepts that extend from film
based products. The OAR is a solid metal alloy construction that can withstand comparably greater
operating power levels than conservative design models permit. Typically the resistive alloys can
withstand temperatures in excess of 300°C. Therefore, system thermal design considerations are a more
significant design parameter due to the heat limitations of solder joints and/or circuit board substrate
materials.
Pulse/Surge Chart @ 50 msec duration
700
1400
1400
600
1200
1200
500
1000
1000
400
800
800
300
600
600
200
400
400
100
0
0 10 20 30 40 50 60 70 80 90 100
Resistance (milli-ohms)
200
0
0 10 20 30 40 50 60 70 80 90 100
Resistance (milli-ohms)
200
0
0 5 10 15 20 25 30 35 40 45 50
Resistance (milli-ohms)
OAR-1(TP)
OAR-3(TP)
OAR-5(TP)
The Surge current charts are approximations of the capabilities of the OAR product and should not be
used to the exclusion of actual testing. The relative high surge currents depicted in the charts are as a
result of the robust all metal welded construction and the heat carrying capability of metal. Additionally
the OAR resistive wire provides large relative cross section for current flow as compared to other resistor
technologies, such as thin film, thick film, or metal strip.
Ordering Data
Sample Part No.
IRC Style
OAR
Power Rating in Watts
1 = 1W, 3 = 3W, 5 = 5W
Resistance Range
‘R’ indicates decimal point location
Tolerance
F = ±1%, G = ±2%, J = ±5%
RoHS Indicator
LF indicates RoHS compliance
Blank indicates Sn/Pb terminal
tinning; available on special request
OAR 1 R100 F LF
Wire and Film Technologies Division • 4222 South Staples Street • Corpus Christi Texas 78411 USA
Telephone: [phone] • Facsimile: 361 992 3377 • Website: www.irctt.com
OAR Series Issue June 2011 Sheet 3 of 3
General Note
TT Electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.
© TT Electronics plc
www.ttelectronicsresistors.com
07.14