FN Datasheet, PDF (2/2 Pages) Welwyn Components Limited – Fusible Nickel Film Resistors

Fusible Nickel
Film Resistors
FN Series
Performance Data
Load: 1000 hours at 70°C
Shelf life: 12 months at room temperature
Derating from rated power at 70°C
Long term damp heat
Resistance to solder heat
Fusing characteristics
∆R%
∆R%
∆R%
∆R%
Welwyn Components
Maximum
1
0.5
zero at 155°C
1
0.5
See Figure 2
Packaging
All FN resistors are supplied tape packed ready for loading on
to automatic sequencing and insertion machines.
Fusing
After fusing the final resistance value will be ≥10 times the
initial value.
Component wires will not protrude beyond the outside edge
of the tapes.
Alternative packaging available by request.
Standard Quantities Per Package
Type
Large ammo pack
FN4
5000
A detailed Packaging Data Sheet is available upon request.
Lead Formed resistors can also be supplied. Standard options
of Lancet, Radial and Goalpost forming are shown in Lead
Form Information section
5
f₁
6
52
f₂
6
Body location f₁ – f₂ ≤ 1.4 mm
© Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Issue B · 03.02
169