UL Recognised
Wirewound Resistors
ULW Series
Packaging
The standard packaging for ULW is taped. The critical dimensions are shown in Figure 1. The component wires will not protrude beyond the outside
edge of the tapes. Taped product is then packed into ammo boxes for ULW2, 3 and 4 or onto reels for ULW5. Alternative packaging is available by
request. Pre-formed resistors are supplied loose packed in plastic bags or boxes. For SMD leadformed option, see the Z-form datasheet.
Dimensions (mm)
Figure 1 F
Type
ULW2
b
52
C
5
C
ULW3
67
10
6
f1
b
f2
6
ULW4
63
10
Body location f1 - f2 <1.4mm
ULW5
Ordering Procedure
Example: ULW2 at 33 ohms and 5% tolerance in ammo pack box of 2500 pieces -
Type
Value (use IEC62 code)
Tolerance (use IEC62 code)
ULW2 – 33R J
A25
J
Packing
5%
A25
A1
T075
Ammo
Tape
ULW2
ULW3, ULW4
ULW5
2500/box
1000/box
750/reel
Standard
General Note
TT electronics reserves the right to make changes in product specification without notice or liability.
All information is subject to TT electronics’ own data and is considered accurate at time of going to print.
www.bitechnologies.com www.irctt.com www.welwyn-tt.com
? TT electronics plc
03.13
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