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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’sFour-terminalCurrent-senseResistorsare
specificallydesignedforlow-resistanceapplications
requiringthehighestaccuracyandtemperature
stability.Thisfour-terminalversionofOhmite’s10
Seriesresistorisspeciallydesignedforuseina
Kelvinconfiguration,inwhichacurrentisapplied
throughtwooppositeterminalsandsensingvoltage
ismeasuredacrosstheothertwoterminals.
TheKelvinconfigurationenablestheresistance
andtemperaturecoefficientoftheterminalstobe
effectivelyeliminated.Thefourterminaldesign
alsoresultsinalowertemperaturecoefficientof
resistanceandlowerself-heatingdriftwhichmaybe
experiencedontwo-terminalresistors.Therequire-
menttoconnecttotheterminalsatprecisetest
pointsiseliminated,allowingfortightertolerancing
ontheendapplication.
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