Ohmite 14A Series Data Sheet

14A Series

Alumina Body Current Sense

F E A T U R E S

• Idealforcurrentsensingapplications

• 1%Tolerancestandard

• Fixedresistancemeasuringpoint

• Lowinductance

• RoHScompliant

SERIES SPECIFICATIONS

Series Wattage Ohms

14A 4 0.004-0.051

Terminals

Encapsulation

Derating

Max.Voltage

Climatic Category

Tolerance

Power rating

Dielectric withstanding

voltage

Insulation resistance

Thermal EMF

Temperature range

Solder-plated copper terminals or copper clad steel depending on ohmic value.

Ceramic cased body

Linearly from 4W@70°C to 0W@250°C

√(PxR) RMS

55/200/56

Varies from +150 to +1100ppm/°C based on resistance value. TCR increases

TCR

as resistance value reduces from 51 to 4milliohms. TCR is tested as per IEC

Specification 115-1 Clause 4.8.4.2

±1% standard. Others available.

4W@70°C

1000 VRMS for 3 and 5 watt; 500 VRMS for 2 watt.

Not less than 1000MΩ.

Less than ±2µV/°C.

-55°C to 275°C.

14AFR Current Sense resistors feature a high tem­perature 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 inductance,
3-piece welded metal element at 1% tolerance. This
series is stocked in 9 popular resistance values for
easy accessibility.

CHARACTERISTICS

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14 AF R0 51 E

Ohm Value

Example:
R050= 0.05Ω

Tolerance

F= 1%

10 Series

Wattage

A = Alumina

Molded Body

RoHS Compliant

14A Series

18mm ±1

6.40mm ±.5

36mm ±4

0.80mm ±.05

40mm

Measuring Length

Alumina Body Current Sense

DIMENSIONS

Series Wattage Length Diam. “M” Lead

14A 4 0.709 / 18 0.252 / 6.40 1.575 / 40 0.031/0.80

PERFORMANCE CHARACTERISTICS

Test Condition Maximum ∆R

Endurance at Rated Power

Terminal Strength

Solderability

Resistance to Solder Heat

Long Term Damp Heat

Climatic Sequence

Overload

1000hrs Test ∆R <5%

Pull Strength of 50N for 10sec, IEC115-1, Clause 4.16 Test Ua1

95% Coverage as per MIL STD 202F, Test 208

260°C for 10sec as per IEC115-1, Clause 4.18 ∆R <0.5%

90-95% RH @40°C for 56 Days, IEC115-1, Clause 4.24 ∆R <5%

As per IEC 115-1, Clause 4.23 ∆R <5%

5 times rated wattage for 5 seconds

ORDERING INFORMATION

Standard part numbers

Ohmic Part
value Number

0.004 14AFR004E

0.005 14AFR005E

0.008 14AFR008E

0.010 14AFR010E

0.015 14AFR015E

0.022 14AFR022E

0.033 14AFR033E

0.047 14AFR047E

0.051 14AFR051E

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