Jumper Resistors
Welwyn Components
WL4
•
Insulated body allows WL4 to be
passed over tracks without short
circuiting
•
Can be tape mounted for auto-insertion
machines
•
Removes the need for double sided PC
boards in some cases
Electrical Data
Electrical Data
Resistance A
Res stance A
Resi
i
stance B
Resistance B
Current carrying capacity
I
C
ol
rr
tion
car
l
ryi
ge
capacity
s
u
a
ent
vo ta
ng
s
s
lat on ol
si t
e
I
I
n
o
ula
i
tion
v
re
ta
s
g
ance
Ins
t
l
g
i n r
of
Vol
u
a
at
e
o
pro
esistance
ohms
ohms
ohms
ohms
amps
am
l
p
s
vo t
s
vo ts
vol
l
ts
ohms
ohms
WL4
W
m
0.007
L4
ax.
0 007 max
0.
.
012 max.
.
0.012 max.
5 max.
5
5
m
0
x.
0
a
500
350
> 1G
> 1G
Notes
Notes
Measured @ 6mm from body
M
asured c
6m
fu l en t
o
of
Me
easured
a
@
ross
m
l
fr
l
om
g
b
h
dy
body termination
engt
Measured across full l
wires
h of
body termination wires
dc or ac peak
dc or ac peak
dc or ac peak
Physical Data
Dimensions (mm)
PCB
mounting
Type
WL4
L Max
6.2
D Max
2.3
f min
21.0
d nom
0.6
centres
10.2
Min.
bend
radius
0.6
d
D
L
f
Construction
Termination wires are welded to a very low resistance body.
The body is then protected by a moisture resistance high
dielectric strength coating applied so that the terminations
remain completely clear. This permits a well defined body
length (clean lead to clean lead dimension L).
Marking
Resistors are marked with two yellow bands placed centrally
on the body.
Solvent Resistance
The body protection and marking are resistant to all normal
industrial cleaning solvents suitable for printed circuits.
Materials
Material
Strength
Solder-coated copper wire.
The materials meet the requirements of IEC
68.2.21
Solderability
The terminations meet the requirements of
IEC 115-1, Clause 4.17.3.2
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
01.07
Issue C
·
·
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
159
WELWYN [ WELWYN COMPONENTS LIMITED ]
