Isabellenhütte A-H2 Series

Product Features

Current sense resistor
4-terminal through-hole design
Resistance range from 0.001Ω to 100Ω
Tolerance of ±0.1% or ±1%
TCR of <±30 ppm/°C
Power rating of 10W on a suitable heat sink
Temperature range from -55°C to +140°C

Datasheet

Resistance Value

Tolerance

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Custom resistance value (Ω) *
Custom AT Range (AT) *
Custom Capacity (lbs) *
Custom Pressure (Bar/PSI) *
Custom Resistance Value Element 1 (Ω) *
Custom Resistance Value Element 2 (Ω) *
Custom lead length (mm) *
Custom lead length (inches) *

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The A-H2 current sensing precision resistor series from Isabellenhütte offers 4-terminal through-hole connection technology for current sensing applications. Designed for easy heat sink mounting, the Kelvin connections on this resistor allow high precision measurements even with a low resistance value range from 1mΩ to 100Ω available. The A-H2 series from Isabellenhütte has low inductance and has high pulse power handling capabilities.

4-terminal current sensing resistor
Through-hole
Resistance range from 0.001Ω to 100Ω
Tolerance options available of ±0.1% and ±1%
TCR of <±30 ppm/K (between +20°C and +60°C)
Temperature range from -55°C to +140°C
Power rating of 10W on a suitable heat sink
Power rating of 3W in free air
Inductance of <10nH
Maximum constant current of 81A
Designed for easy heat sink mounting
Low self-heating

Typical applications for the A-H2 current sensing precision resistor series include:

Measurement equipment
Reference resistors in laboratories
Current sources
Laboratory power supplies

Isabellenhütte A-H Series Specification Table

Attributes	Value
Resistance value *	1mΩ to 100Ω
Tolerance	±0.1% / ±1%
TCR	<±30 ppm/°C (20-60°C)
Temperature range	-55°C to +140°C
Power rating	3W (free air) / 10W (on a suitable heatsink)
Thermal resistance to ambient	<15°C/W (Rth)
Thermal resistance to aluminium substrate	<3°C/W (Rthi)
Dielectric withstanding voltage	500V AC/DC
Inductance	<10nH
Stability (deviation after 2000hrs)	<0.1% (Tᴋ = 80°C with heatsink) / <0.2% (Tᴋ = 95°C with heatsink) Tᴋ = Terminal Temperature

* Please visit the Ordering Info tab or contact us for further details

Isabellenhütte is one of the world’s leading suppliers of high-quality precision and power resistors. They produce these low-resistance resistors for a variety of applications such as the ones above. Isabellenhütte & Rhopoint Components are your ideal partners when it comes to achieving the best possible measurement results in the smallest spaces. Please visit www.isabellenhuette.de for more information.

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Specifications

Dimensions	25.5 x 5 x 38mm
Product Type	4-Terminal Current Sensing Resistor
Package / Size	Through-hole
Resistance Value	0.001Ω, 0.002Ω, 0.005Ω, 0.01Ω, 0.02Ω, 0.05Ω, 0.1Ω, 0.2Ω, 0.5Ω, 1Ω, 2Ω, 5Ω, 10Ω, 20Ω, 100Ω
Minimum Resistance	0.001Ω
Maximum Resistance	100Ω
Tolerance	±0.1%, ±1%
Temperature Coefficient	±30 ppm/°C
Current Rating	81A
Power Rating	3W, 10W
Series / Model	A-H2
Temperature Range (°C)	-55 to +140°C

Series / Model (A-H2)

A-H2: A-H2

Resistance Value (XXXX)

Resistance value, in ohms, is expressed by a series of 4 characters, 3 of which represent significant digits. R (ohms) designates the location of the decimal point.

Termination / Connection ()

Tolerance (X.X)

0.1: ±0.1%
1.0: ±1%