Chip Resistor
Arrays
WNCR Series
Welwyn Components
•
•
•
•
Reduced placement cost
Compact size
Zero ohms also available
Design flexibility
Electrical Data
WNCR
Power rating per resistor at 70°C
Resistance range (E24)
TCR -55 to 125°C
Resistance tolerance
Maximum overload voltage
Maximum working overload
Ambient temperature range
watts
ohms
ppm/°C
%
volts
volts
°C
0.063
10 to 1M
±200
±5
100
50
-55 to +125
Physical Data
Dimensions (mm)
Type
WNCR 164
Concave
Terminations
Type
WNCR 168
Convex
Terminations
L
3.20
±0.10
W
1.60
±0.10
a
0.60
±0.15
b
0.40
±0.15
c
0.25
±0.15
d
0.30
±0.20
p
0.8
t
0.50
±0.10
d
a
b
L
t
c
p
d
c
W
t
P
c
W
c
a
d
d
L
L
3.20
±0.15
W
1.60
±0.15
a
0.50
±0.15
b
0.5
c
0.35
±0.15
d
0.40
±0.15
p
0.8
t
0.45
±0.10
b
Schematic
8
5
Solderability
At least 95% of the terminal area shall be covered by
continuous smooth new solder.
Marking
1
4
Normal resistance value is marked on the top of the resistor
with three digits.
The first two digits are significant of the nominal value and
the third digit is the multiplier.
Construction
Substrate
Resistor
Terminations
Alumina
Ruthenium Oxide
Nickel & solder plated
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 · 03.02
© 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
80
WELWYN [ WELWYN COMPONENTS LIMITED ]
