WA84Z1K5J Datasheet, PDF (3/3 Pages) Welwyn Components Limited – Mount Wirewound Resistors Mount Wirewound Resistors

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Welwyn Components
Pulse Handling
The graph below shows the energy handling capability of
WA80Z resistors for single short pulses (<100mS). For longer
pulses of duration up to 5 Seconds, up to 5 times the rated
power may be applied. Note that forced-air cooling and
heatsinking by PCB tracks have no effect on energy ratings.
If higher energy ratings than those shown are needed, it is
normally possible to design a pulse withstand variant.
Graph 2
100
WA80Z Energy Capability Graph
10
1
0.1
0.01
0.1
1
10
Value (Ohms)
WA83Z
WA84Z
100
WA85Z
1000
10000
Packaging
WA80Z products are supply on standard carrier tape and
330mm diameter reels suitable for automatic pick and place
machines. Carrier tape dimensions and standard reels
quantities are given below.
Dimensions (mm)
Type
Ao Bo Ko W
WA83Z 5.3 13.9 6.3 24
WA84Z 7.3 19.2 7.1 32
WA85Z 7.4 19.2 8.2 32
Ao
P
Bo
Ko
W
P
T
12 0.4
12 0.4
12 0.4
Quantity
Per reel
750
750
650
ø 13mm
ø 330mm
Ordering Procedure
Specify type reference, value and tolerance as shown in this
example of WA84Z at 1.5KOhms 5%:
Type
WA84Z
1K5
J
Value (use IEC 62 code)
Tolerance (use IEC 62 code)
F 1%
G 2%
J 5%
K 10%
All other dimensions as
per EIA481 standard
24mm / 32mm
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Issue G · 03.06
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