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44
10 Series
Axial Wire Element Current Sense
Two Terminal Axial
L max. D ±.010" /
±0.3mm
d ±.002" /
±0.05mm
M
1.562" ±0.062 /
39.7mm ±1.6
Series Wattage Ohms
12 2 0.005-0.10
13 3 0.005-0.20
15 5 0.005-0.25
Series Wattage Length “L” Diam. “D” “M” “d” (lead ga.)
12 2 0.416 / 10.6 0.094 / 2.4 1.156 / 29.4 20
13 3 0.570 / 14.5 0.205 / 5.2 1.310 / 33.3 20
15 5 0.935 / 23.8 0.330 / 8.4 1.675 / 42.5 18
FEATURES
•Idealforcurrentsensingapplications
•1%Tolerancestandard,othersavailable
•Fixedresistancemeasuringpoint“M”
•Lowinductance(non-inductivebelow0.25Ω)
•RoHScompliantproductavailable;add“E”suffixto
partnumbertospecify
0
500
400
300
200
100
Milliohms
10 20 4030 50
600
700
0
ppm/ °C
2 watt
3 watt
5 watt
Temperature
Coefficient of
Resistance
Terminals Solder-plated copper terminals or copper clad steel depending
on ohmic value. RoHS solder is 96% Sn, 3.5% Ag, 0.5% Cu
Encapsulation Silicone molding compound
Derating Linearly from 100% @ +25°C to 0% @ +275°C
Tolerance ±1% standard; Others available
Power rating Based on 25°C free air rating
Overload 5 times rated wattage for 5 seconds
Dielectric withstanding voltage 1000 VRMS for 3 and 5 watt; 500 VRMS for 2 watt
Insulation resistance Not less than 1000MΩ
Thermal EMF Less than ±2µV/°C
Temperature range -55°C to 275°C
CHARACTERISTICS
SERIES SPECIFICATIONS
DIMENSIONS ORDERING INFORMATION
Standard part numbers
Ohmic
value 2 watt 3 watt 5 watt
0.005 12FR005E 13FR005E 15FR005E
0.010 12FR010E 13FR010E 15FR010E
0.015 12FR015E 13FR015E 15FR015E
0.020 12FR020E 13FR020E 15FR020E
0.025 12FR025E 13FR025E 15FR025E
0.030 12FR030E 13FR030E 15FR030E
0.040 12FR040E 13FR040E 15FR040E
0.050 12FR050E 13FR050E 15FR050E
0.060 12FR060E 13FR060E 15FR060E
0.070 12FR070E 13FR070E 15FR070E
0.080 12FR080E 13FR080E 15FR080E
0.090 12FR090E 13FR090E 15FR090E
0.100 12FR100E 13FR100E 15FR100E
0.150 13FR150E 15FR150E
0.200 13FR200E 15FR200E
0.250 15FR250E
Ohm Value
Example:
R050= 0.05
Tolerance
F=1%
D= 0.5%
10 Series
Wattage RoHS Compliant
(continued)
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com 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
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Authorized Distributor
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Ohmite:
13FR100 12FR005 12FR040 12FR025 12FR080 12FR015 12FR020 12FR070 12FR030 12FR050 12FR060
12FR010 12FR090 15FR200 13FR015 13FR010 15FR150 13FR090 13FR030 13FR025 13FR080 13FR060
13FR050 13FR020 13FR040 13FR005 13FR070 13FR150 15FR070 15FR010 15FR050 15FR015 15FR090
15FR250 15FR100 12FR100 15FR030 15FR020 15FR025 15FR060 15FR080 13FR200 15FR005 15FR040
15FR100E 13FR100E 12FR100E 13FR150E 15FR150E 13FPR075E 17FPR075E 14FPR075E 14FPR070E
13FPR070E 17FPR070E 13FPR090E 14FPR090E 17FPR090E 13FPR010E 17FPR010E 17FPR015E
14FPR010E 13FPR015E 14FPR015E 17FPR050E 13FPR050E 14FPR050E 14FPR100E 17FPR100E
13FPR100E 13FPR060E 17FPR060E 14FPR060E 17FPR020E 13FPR020E 14FPR020E 17FPR025E
13FPR025E 14FPR025E 14FPR040E 17FPR040E 13FPR040E 14FPR005E 17FPR005E 13FPR005E
14FPR080E 17FPR080E 13FPR080E 13FR200E 15FR200E 13FR050E 15FR050E 12FR050E 13FR010E
15FR010E 12FR010E 12FR015E 15FR015E 13FR015E 12FR090E