OAR3R100FLF TT Electronics/IRC, OAR3R100FLF Datasheet - Page 3

• Manufacturer Part Number: OAR3R100FLF
• Description: RES METAL .100 OHM 3W 1% RADIAL
• Manufacturer: TT Electronics/IRC
• Series: OARr

Specifications of OAR3R100FLF

• Resistance (ohms): 0.1
• Number Of Terminations: 2
• Package / Case: Radial
• Power (watts): 3W
• Composition: Metal Element
• Features: Current Sense, Flame Proof
• Temperature Coefficient: ±20ppm/°C
• Tolerance: ±1%
• Size / Dimension: 0.600" L x 0.065" W (15.24mm x 1.65mm)
• Height: 0.920" (23.37mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 989-1094; OAR-3-R100-F-LF

Power Derating
The typical power derating curves are based on conservative design concepts that extend from fi lm
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
signifi cant design parameter due to the heat limitations of solder joints and/or circuit board substrate
materials.
Pulse/Surge Chart @ 50 msec duration
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 fl ow as compared to other resistor
technologies, such as thin fi lm, thick fi lm, or metal strip.
Ordering Data
Wire and Film Technologies Division
Telephone: [phone] • Facsimile: 361 992 3377 • Website: www.irctt.com
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
Open Air Resistor
Metal Element Current Sense
700
600
500
400
300
200
100
0
0
10
20
Resistance (milli-ohms)
30
OAR-1
40
50
60
70
• 4222 South Staples Street • Corpus Christi Texas 78411 USA
80
90
100
OAR
1400
1200
1000
800
600
400
200
0
0
1
10
R100
20
Resistance (milli-ohms)
30
F
OAR-3
40
LF
50
60
70
80
90
100
1400
1200
1000
800
600
400
200
0
0
5
10
Resistance (milli-ohms)
15
OAR-5
OAR Series Issue July 2010 Sheet 3 of 3
20
25
30
35
40
45
50