Precision Resistors

Typ / type A-H

RHOPOINT COMPONENTS LTD

Holland Road, Hurst Green, Oxted, Surrey, RH8 9AX, ENGLAND

Tel: +44/01883 717988, Fax: +44/01883 712938, Email: sales@rhopointcomponents.com Website: www.rhopointcomponents.com

Ausgabe / Issue : 31/10/2000

A-H 1 / 2

Technische Änderungen vorbehalten - technical modifications reserved

Temperaturabhängigkeit des elektrischen Widerstandes von

MANGANIN-Widerständen

temperature dependence of the electrical resistance of

MANGANIN-resistors

The Resistor type A-H with its isolated current and voltage

connections configured as a four-terminal resistor ( i.e.,

Kelvin connection ) is ideally suited for precise current

measurement, current limitation or regulation in power

units, current sources, and electronic loads. It is also

applied for current measurements in pulse width modulated

( PWM ) control circuits for inductive users such as servo

and stepper motors and solenoid driver circuits.

Designinfoiltechniqueandapplicationofprecisionresistance

alloy MANGANIN warrants for a long-term stability. By

optimization of the shape, a high load capacity was obtained

while maintaining accuracy and low inductance. The low

thermal resistance to the aluminum base plate of < 3 K/W

permits loading up to 10 W with only little self-heating.

Remarks:

- please note that the above standard values are available

- Tolerance 0.1% for values from 5 mOhm

-40

-20

20

40

60

80

100

120

-1

-0.5

0.5

1

∆R/R

0

20

40

60

80

100

120

T

0.25

0.5

0.75

1

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power derating curve

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