12FR010E

RES-10 OHMITE

Document overview

• PDF pages: 2

Technical content

Page 1

10 Series

Axial Wire Element Current Sense

Two Terminal Axial

F e a t 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

Solder-plated copper terminals or copper clad steel depending Terminals 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 1000 VRMS for 3 and 5 watt; 500 VRMS for 2 watt

Dielectric withstanding voltage Insulation resistance Not less than 1000MΩ Thermal EMF Less than ±2µV/°C Temperature range -55°C to 275°C

D i m e n s i o n s

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

Milliohms

O R D E R I N G I N F O R M AT I O N

Standard part numbers

Wattage RoHS Compliant

Ohmic value 2 watt 3 watt 5 watt 0.005 12FR005E 13FR005E 15FR005E 0.010 12FR010E 13FR010E 15FR010E

10 Series Tolerance Ohm Value

0.015 12FR015E 13FR015E 15FR015E

F = 1% Example: D= 0.5% R050= 0.05

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

(continued)

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com

Page 2

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.

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

D +.015 /

B ±.010 /

L +.015 /

A (min.)

+0.4

±0.03

+0.4

0.032 ±.002 0.81±.05 (20 AWG)

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

O R D E R I N G I N F O R M AT I O N

Terminals Blank = 2 terminals

Wattage

RoHS Compliant

P = 4 terminals

2 4 G Q S 1 6 1 F

10 Series Tolerance Ohm Value F = 1% Example: D= 0.5% R050= 0.05¾

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

1-866-9-OHMITE • Int’l 1-847-258-0300 • Fax 1-847-574-7522 • www.ohmite.com • info@ohmite.com