Datasheet

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45
L +.015 /
+0.4
D +.015 /
+0.4
A (min.)
B ±.010 /
±
0.03
0.032 ±.002
0.81 ± .05
(20 AWG)
Series Wattage Ohms
13 3 0.005-0.1
14 4.5 0.005-0.1
17 7 0.005-0.1
Series Wattage Length Diam. A B
13 3 0.625/15.9 0.200/5.08 1.25/31.8 0.125/3.18
14 4.5 1.060/26.9 0.335/8.51 1.50/38.1 0.200/5.08
17 7 1.500/38.1 0.375/9.53 1.50/38.1 0.200/5.08
Terminals
Tinned Copper Leads
Encapsulation
Silicone Molding Compound
Derating
Linearly from 100% at +25˚C to 0% at
+200˚C
Resistance Range
0.005Ω to 0.100Ω standard
Standard Tolerance
±1%; others available
Operating Temp. Range
-55˚C to +200˚C
Temperature Coefficient
of Resistance
(0˚C to 85˚C) ≥0.015Ω: ±50 PPM/˚C;
<0.015Ω: ±100 PPM/˚C
Environmental
Performance
Exceeds the requirements of MIL-
PRF-49465
Power rating
Based on 25˚C free air rating.
Overload
5 times rated wattage for 5 seconds
Max. Current
22 amps
Dialectric withstanding
voltage
1500 VAC for 4.5 and 7 watt; 1000
VAC for 3 watt
Insulation resistance
Not less than 1000 MΩ
Thermal EMF
Less than ±2µV/˚C
Ohmite’sFour-terminalCurrent-senseResistorsare
specificallydesignedforlow-resistanceapplications
requiringthehighestaccuracyandtemperature
stability.Thisfour-terminalversionofOhmite’s10
Seriesresistorisspeciallydesignedforuseina
Kelvinconfiguration,inwhichacurrentisapplied
throughtwooppositeterminalsandsensingvoltage
ismeasuredacrosstheothertwoterminals.
TheKelvinconfigurationenablestheresistance
andtemperaturecoefficientoftheterminalstobe
effectivelyeliminated.Thefourterminaldesign
alsoresultsinalowertemperaturecoefficientof
resistanceandlowerself-heatingdriftwhichmaybe
experiencedontwo-terminalresistors.Therequire-
menttoconnecttotheterminalsatprecisetest
pointsiseliminated,allowingfortightertolerancing
ontheendapplication.
CHARACTERISTICS
SERIES SPECIFICATIONS
DIMENSIONS
10 Series
Axial Wire Element Current Sense
Four Terminal Axial
FEATURES
• Ideal for current sensing applications
• 1% Tolerance standard, others available
• Low Inductance (non-inductive below 0.25Ω)
• Tinned Copper Leads
• RoHS Compliant
ORDERING INFORMATION
 
Ohm Value
Example:
R050= 0.05�
Tolerance
F=1%
D= 0.5%
10 Series
Wattage
Terminals
Blank =2 terminals
P=4 terminals
RoHS Compliant
Standard part numbers
Ohmic
value 3 watt 4.5 watt 7 watt
 0.005 13FPR005E 14FPR005E 17FPR005E
 0.010 13FPR010E 14FPR010E 17FPR010E
 0.015 13FPR015E 14FPR015E 17FPR015E
 0.020 13FPR020E 14FPR020E 17FPR020E
 0.025 13FPR025E 14FPR025E 17FPR025E
 0.030 13FPR030E 14FPR030E 17FPR030E
 0.040 13FPR040E 14FPR040E 17FPR040E
 0.050 13FPR050E 14FPR050E 17FPR050E
 0.060 13FPR060E 14FPR060E 17FPR060E
 0.070 13FPR070E 14FPR070E 17FPR070E
 0.075 13FPR075E 14FPR075E 17FPR075E
 0.080 13FPR080E 14FPR080E 17FPR080E
 0.090 13FPR090E 14FPR090E 17FPR090E
 0.100 13FPR100E 14FPR100E 17FPR100E