Chip Resistor
Arrays
Welwyn Components
WNCR Series
Performance Data
Typical Performance
Short term overload
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
∆R%
2.5
2.0
2.0
3.0
3.0
3.0
3.0
3.0
Resistance to solder heat
Temperature cycling
Moisture load life: 1000 hrs at 40°C
Load life: 1000 hrs at 70°C
Low temperature exposure: 1000 hrs at -55°C
High temperature exposure: 1000 hrs at 125°C
Humidity exposure: 1000 hrs at 40°C
Power Rating
For ambient temperature above 70°C, the power shall be derated as follows:
Percent of
Rated Wattage
(%)
Ambient Temperature (oC)
1/16 watt / resistor at 70oC
Packaging
Taping Characteristics (mm)
+ 0 . 1
- 0
2 . 0 ± 0 . 0 5
4 . 0 ± 0 . 1
Ø 1 . 5
1 . 7 5 ± 0 . 1
3 . 5 ± 0 . 0 5
B
2 . 7 5
A
t
4 . 0 ± 0 . 1
2 . 0 ± 0 . 0 5
A
t
B
WNCR
2.0 +0.1
-0.15
0.8
3.75 +0.1
-0.15
0.2
Packaging
Resistor arrays are supplied tape and reel.
Quantity 5,000 pcs per reel.
© 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
Issue B · 03.02
81
TTELEC [ TT Electronics ]
