10 Series
Axial Wire Element Current Sense
Two Terminal Axial
F e at u r e S
• 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
S e r i e S S p e C i F i C at i o n S
Series
12
13
15
Wattage
2
3
5
Ohms
0.005-0.10
0.005-0.20
0.005-0.25
CharaCteriStiCS
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
ppm/
°C
700
600
500
400
300
200
100
0
0
10
20
30
Milliohms
40
50
Temperature
Coefficient of
Resistance
2 watt
3 watt
5 watt
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
DimenSionS
1.562"
±0.062
/
39.7mm
±1.6
L max.
D
±.010"
/
±0.3mm
d
±.002"
/
±0.05mm
Ohmic
value
0.005
0.010
0.015
0.020
0.025
0.030
0.040
0.050
0.060
0.070
0.080
0.090
0.100
0.150
0.200
0.250
o r D e r i n G i n F o r m at i o n
Standard part numbers
2 watt
3 watt
12FR005E 13FR005E
12FR010E 13FR010E
12FR015E 13FR015E
12FR020E 13FR020E
12FR025E 13FR025E
12FR030E 13FR030E
12FR040E 13FR040E
12FR050E 13FR050E
12FR060E 13FR060E
12FR070E 13FR070E
12FR080E 13FR080E
12FR090E 13FR090E
12FR100E 13FR100E
13FR150E
13FR200E
5 watt
15FR005E
15FR010E
15FR015E
15FR020E
15FR025E
15FR030E
15FR040E
15FR050E
15FR060E
15FR070E
15FR080E
15FR090E
15FR100E
15FR150E
15FR200E
15FR250E
Wattage
RoHS Compliant
M
Series Wattage
12
13
15
2
3
5
Length “L”
0.416 / 10.6
0.570 / 14.5
0.935 / 23.8
Diam. “D”
0.094 / 2.4
0.205 / 5.2
0.330 / 8.4
“M”
1.156 / 29.4
1.310 / 33.3
1.675 / 42.5
“d” (lead ga.)
20
20
18
10 Series
Tolerance Ohm Value
F = 1%
Example:
D= 0.5%
R050= 0.05
(continued)
44
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
10 Series
Axial Wire Element Current Sense
Four Terminal Axial
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
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
(0˚C to 85˚C) ≥0.015Ω: ±50 PPM/˚C;
of Resistance
<0.015Ω: ±100 PPM/˚C
Environmental
Exceeds the requirements of MIL-
Performance
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
1500 VAC for 4.5 and 7 watt; 1000
voltage
VAC for 3 watt
Insulation resistance
Not less than 1000 MΩ
Thermal EMF
Less than ±2µV/˚C
Ohmic
value
0.005
0.010
0.015
0.020
0.025
0.030
0.040
0.050
0.060
0.070
0.075
0.080
0.090
0.100
Series
14
13
Wattage
4.5
7
3
Length
1.060/26.9
0.625/15.9
Diam.
0.335/8.51
0.200/5.08
F e at u r e S
• Ideal for current sensing applications
• 1% Tolerance standard, others available
• Low Inductance (non-inductive below 0.25Ω)
• Tinned Copper Leads
• RoHS Compliant
S e r i e S S p e C i F i C at i o n S
Series
13
14
17
Wattage
Ohms
3
0.005-0.1
4.5
0.005-0.1
7
0.005-0.1
DimenSionS
A (min.)
L +.015 /
+0.4
D +.015 /
+0.4
B
±.010
/
±
0.03
0.032
±.002
0.81
±
.05
(20 AWG)
A
1.50/38.1
1.25/31.8
B
0.200/5.08
0.125/3.18
17
1.500/38.1
0.375/9.53
1.50/38.1
0.200/5.08
o r D e r i n G i n F o r m at i o n
Wattage
Terminals
Blank = 2 terminals
P
= 4 terminals
RoHS Compliant
½½½½½½½½½
10 Series
Tolerance Ohm Value
F = 1%
Example:
D= 0.5%
R050= 0.05½
Standard part numbers
3 watt
13FPR005E
13FPR010E
13FPR015E
13FPR020E
13FPR025E
13FPR030E
13FPR040E
13FPR050E
13FPR060E
13FPR070E
13FPR075E
13FPR080E
13FPR090E
13FPR100E
4.5 watt
14FPR005E
14FPR010E
14FPR015E
14FPR020E
14FPR025E
14FPR030E
14FPR040E
14FPR050E
14FPR060E
14FPR070E
14FPR075E
14FPR080E
14FPR090E
14FPR100E
7 watt
17FPR005E
17FPR010E
17FPR015E
17FPR020E
17FPR025E
17FPR030E
17FPR040E
17FPR050E
17FPR060E
17FPR070E
17FPR075E
17FPR080E
17FPR090E
17FPR100E
1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com
45
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