High Current Jumper Chip
Welwyn Components
LRZ Series
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High current zero-Ohm link
Thick film copper technology
Current rating to 35A
Typical resistance 1.5mΩ
Inductance below 0.2nH
Electrical Data
Size
Current rating @ 70 °C
2 second overload current @ 25ºC
Resistance
Ambient temperature range
Dielectric withstand voltage
Temperature rise at rated current
Pad & trace area for rated current
Amps
Amps
Ohms
°C
Volts
ºC
mm
2
0805
15
30
1206
20
40
0.003 max.
-55 to +150
200
2010
30
60
2512
35
70
Notes
DC or AC rms
0.0015 typ.
30
40
40
50
80
100
90
300
See Application Notes
Physical Data
Dimensions (mm) & Weight (g)
L
0805
1206
2010
2512
2.0 ± 0.3
3.20 ± 0.31
6.5 ± 0.38
W
1.25 ± 0.2
1.63 ± 0.2
3.25 ± 0.25
T
0.61 ± 0.1
0.61 ± 0.1
0.74 ± 0.1
0.74 ± 0.1
A
0.3 ± 0.15
C
0.3 ± 0.1
Wt
0.009
0.020
0.036
0.055
A
L
A
W
C
T
0.48 ± 0.25 0.48 ± 0.25
0.48 ± 0.25 0.48 ± 0.25
0.48 ± 0.25 0.48 ± 0.25
5.23 ± 0.38 2.64 ± 0.25
Wrap-around terminations
(3 faces)
Construction
A thick film copper conductive element and organic
protection are screen printed on a 96% alumina substrate.
withstand immersion in solder at 260˚C for 30 seconds and
are suitable for reflow or wave soldering processes.
Terminations
The wrap-around copper terminations have an electroplated
nickel barrier and solderable coating, which ensures excellent
‘leach’ resistance properties and solderability. Chips can
Marking
The body protection is resistant to all normal cleaning solvents
suitable for printed circuits. Chips are marked R000 except for
0805 size which are not marked.
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.
A subsidiary of
TT electronics plc
Issue B · 02.05
© Welwyn Components Limited
· Bedlington, Northumberland NE22 7AA, UK
Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com
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WELWYN [ WELWYN COMPONENTS LIMITED ]
