14AFR004E Datasheet, PDF (1/1 Pages) Ohmite Mfg. Co. – Alumina Body Current Sense

14AFR Current Sense resis-
tors feature a high tem-
perature ceramic body which
affords the user higher power
densities than similar products
which utilize silicone based
epoxy molding compounds.
The internal construction
involves a straight, low induc-
tance, 3-piece welded metal
element at 1% tolerance. This
series is stocked in 9 popular
resistance values for easy
accessibility.  
Features
• Ideal for current sensing applica-
tions
• 1% Tolerance standard
• Fixed resistance measuring
point
• Low inductance
• RoHS compliant
S p e c i f i ca t i ons
Material
Terminals: Solder-plated copper
terminals or copper clad steel
depending on ohmic value.
Encapsulation: Ceramic cased
body
Derating: Linearly from
4W@70°C to 0W@250°C
Electrical
Max.Voltage: √(PxR) RMS
Climatic Category: 55/200/56
TCR: Varies from +150 to
+1100ppm/°C based on resis-
tance value. TCR increases as
resistance value reduces from
51 to 4milliohms. TCR is tested
as per IEC Specification 115-1
Clause 4.8.4.2
Tolerance: ±1% standard.
Others available.
Power rating: 4W@70°C
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.
Performance Characteristics
Test
Endurance at
Rated Power
Condition
1000hrs Test
Maximum ∆R
∆R <5%
Terminal Strength
Pull Strength of 50N for 10sec, IEC115-1,
Clause 4.16 Test Ua1
Solderability
95% Coverage as per MIL STD 202F, Test 208
Resistance to
Solder Heat
-260°C for 10sec as per IEC115-1, Clause 4.18
∆R <0.5%
Long Term
Damp Heat
-90-95% RH @40°C for 56 Days, IEC115-1,
Clause 4.24
∆R <5%
Climatic Sequence
Overload
As per IEC 115-1, Clause 4.23
5 times rated wattage for 5 seconds
∆R <5%
36mm ±4
14A Series
Alumina Body
Current Sense
18mm ±1
6.40mm ±.5
0.80mm ±.05
40mm
Measuring Length
Dimensions (in. / mm)
Series Wattage Ohms Length Diam.
“M”
Lead
14A
4 0.004-0.051 0.709 / 18 0.252 / 6.40 1.575 / 40 0.031/0.80
ordering information
Wattage
A = Alumina
Molded Body _{RoHS Compliant}
14AFR051E
10 Series Tolerance Ohm Value
F = 1% Example:
R050= 0.05Ω
Check product availability at www.ohmite.com
StD. part numbers
Ohmic Part
value Number
0.004
0.005
0.008
0.010
0.015
14AFR004E
14AFR005E
14AFR008E
14AFR010E
14AFR015E
0.022
0.033
0.047
0.051
14AFR022E
14AFR033E
14AFR047E
14AFR051E