WA80Z Datasheet, PDF (1/3 Pages) Welwyn Components Limited – Cement Coated Surface Mount Wirewound Resistors

Cement Coated Surface
Mount Wirewound Resistors Welwyn Components
WA80Z Series
• All welded construction
• Suitable for automatic pick and place
• Excellent pulse handling capability
• Fuses safely under fault conditions
• Competitive cost
• Performance equivalent to 2, 3 & 5W
axial resistors
Electrical Data
Power rating at 25˚C
Resistance range
Limiting element voltage
Isolation voltage
TCR
Resistance tolerance
Standard values
Ambient temperature range
Physical Data
watts
ohms
volts
volts
ppm/°C
%
°C
WA83Z
2
0R05 to 900R
50
250
WA84Z
3
0R01 to 2K2
100
350
≤1R0:350 >1R0:200
<20R: 5, 10 ≥20R: 1, 2, 5, 10
E24 series preferred
-55 to 155
WA85Z
5
0R015 to 6K8
150
500
Dimensions (mm)
Type
L
WA83Z 13.4±0.2
W
3.6 max
H
6.25 max
l
9.0 max
w
4.5±0.6
d
0.8 nom
WA84Z 18.7±0.2 5.2 max 6.9 max 14.5 max 6.5±0.6 0.8 nom
WA85Z 18.7±0.2 7.0 max 7.9 max 16.5 max 6.5±0.6 0.8 nom
I
H
L
d
W
w
Recommended Pad Sizes
Dimensions (mm)
Type
A
WA83Z
5.5
WA84Z
7.5 min
WA85Z
7.5 min
B
2.5 min
2.5 min
2.5 min
C
10 max
15 max
15 max
D
15 min
20 min
20 min
B
C
A
D
Construction
A high purity ceramic substrate is assembled with interference
fit end caps to which are welded the terminations. The
resistive element is wound on the substrate and welded to
the caps. Flameproof silicone cement coating is applied
prior to marking with indelible ink and lead forming.
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.
© Welwyn Components Limited · Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
A subsidiary of
TT electronics plc
Issue G · 03.06