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Low Ohmic Resistors

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Technology

Metal Foil

Metal Foil

Metal Foil

Metal Foil

Metal Foil

Metal Foil

Power

up to 0.6W

up to 6W

up to 25W

up to 10W

up to 50W

up to 50W

Resistance

0.1 Ω to 100 Ω

0.4 Ω to 100 Ω

0.5 Ω to 100 Ω

0.5 Ω to 80 Ω

0.02 Ω to 500 Ω

0.1 Ω to 500 Ω

Tolerance

to�  0.01%

to � 0.01%

to � 0.01%

to � 0.01%

to�  0.01%

to � 0.01%

TCR

to 1ppm/�C

to 1ppm/�C

to 1ppm/�C

to 1ppm/�C

to 1ppm/�C

to 1ppm/�C

Part Number

USR 4-1410

USR 4-5028

USR 4-1414

USR 4-T220

USR 4-3425

USR 4-4020

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Technology

Manganin Foil

Manganin Foil

Manganin Foil

Metal Foil

Metal Foil

Manganin Foil

Power

up to 2W

up to 2W

up to 30W

up to 15W

up to 5W

up to 25W

Resistance

0.01 Ω to 100 Ω

0.0005 Ω to 100 Ω

0.002 Ω to 50 Ω

0.01 Ω to 50 Ω

0.005 Ω to 1 Ω

0.01 Ω to 1 Ω

Tolerance

to � 0.1%

to � 0.1%

to � 0.1%

to � 0.1%

to � 0.1%

to � 0.1%

TCR

to 10ppm/�C
(between 20 & 40
�C)

to 15ppm/�C

to 10ppm/�C
(between 20 & 40�C)

to 15ppm/�C

to 10ppm/�C
(between 20 & 40�C)

to 10ppm/�C
(between 20 & 40�C)

Part Number

FPR 2-1617

FPR 4-2321

FPR 2-T218

FPR 2-T220

FHR 4-5028

FPR 4-1414

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Technology

Manganin Foil

Manganin Foil

Manganin Foil

Metal Foil

Metal Foil

Metal Element Molded

Power

up to 50W

up to 80W

up to 250W

up to 2000W

up to 50W / 1000A

1W to 10W

Resistance

0.01 Ω to 100 Ω

0.001 Ω to 100 Ω

0.001 Ω to 100 Ω

0.001 Ω to 500 Ω

 0.00005 Ω

0.003 Ω to 0.30 Ω

Tolerance

to � 0.25%

to � 0.1%

to � 0.1%

to � 0.1%

to � 1%

to � 1%

TCR

to � 10ppm/�C
(between 20 & 40
�C)

to � 15ppm/�C

to � 15ppm/�C

to � 15ppm/�C

to � 15ppm/�C

to � 120ppm/�C

Part Number

FHR 2-3025

FHR 2-T238

FHR 2-6760

FHR 4-8065

FHR 2-10020

MT

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Technology

Metal Element Bare

 

 

 

 

 

Power

1W to 5W

 

 

 

 

 

Resistance

0.005 Ω to 0.10 Ω

 

 

 

 

 

Tolerance

to � 1%

 

 

 

 

 

TCR

to 120ppm/�C

 

 

 

 

 

Part Number

MS

 

 

 

 

 

Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, UK

Tel: +44 (0) 1342 717102, Fax: +44 (0) 1342 717014, Email: sales@willow.co.uk