Ultra Precision Wire-Wound Resistors

Type UPW Series

Literature No. 1773299

Issued: 04-05

Dimensions are shown for

reference purposes only.

Dimensions are in millimetres

unless otherwise specified.

Specifications subject to

change.

www.tycoelectronics.com

passives.tycoelectronics.com

Performance Characteristics

The evaluation of the performance characteristics is carried out with reference to

IEC specifications QC 400 000 and QC 400 100.

How to Order

Orders for these components should include the following information:-

Type, tolerance code letter and value e.g. UPW30 L 1K15

TEST REF

Long Term Tests ±(0.25% + 0.05 ohm)

4.23

Climatic sequence

4.24

Damp heat, steady state

4.25.1

Endurance at 70 °C

4.25.3

Endurance at 145 °C

TEST REF

Short Term Tests ±(0.1% + 0.01 ohm)

4.13

Overload

4.16

Robustness of terminations

4.18

Resistance to soldering heat

4.19

Rapid change of temperature

4.22

Vibration

All resistance values are measured at a distance of 9.53mm (0.375 inch) from

the end cap.

Marking

The resistors are marked with the following information:- Manufacturer's name, type number, value and tolerance,

four figure date code.

Packaging

UPW Series resistors are packed loose in boxes.