Thick Film Low Resistance

Kelvin Flip Chip

LRK Series

General Note

Welwyn Components reserves the right to make changes in product specification without notice or liability.

All information is subject to Welwyn’s own data and is considered accurate at time of going to print.

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

Electrical Data

Physical Data

Issue B · 03.02

A subsidiary of

TT electronics plc

Welwyn Components

31

LRK

Resistance range

ohms

R003-R100

Tolerance

%

to ±1

Operating temperature range

°C

-55 to +150

TCR

ppm/°C

±100 (down to 0.010)

Power dissipation (at 70°C)

watts

2.00

Temperature rise at 2 watts

°C

70

Dimensions (mm)

A

B

SC

DE

6.500±0.380

3.250±0.250

1.778

0.740±0.100

0.508±0.127

0.787±0.178

A

C

B

D

Dimensions (mm)

AB

C

D

2.54

2.413

1.778

1.27

1

34

2

R

Schematic Layout

Recommended Solder Pad Layout

The LRK low range flip chip resistor series offers very low

resistance four terminal (Kelvin) layout for applications

requiring low cost and precision current measurement. The LRK

flip chip utilises patented, non-noble copper based inks which

demonstrate high performance, precision and reliability.

SIDE

A

C

B

D

E

S

12

4

3

BOTTOM