ULW2-47RJA25 TT Electronics/Welwyn, ULW2-47RJA25 Datasheet
ULW2-47RJA25
Specifications of ULW2-47RJA25
Related parts for ULW2-47RJA25
ULW2-47RJA25 Summary of contents
Page 1
... Marking ULW2 & ULW3 resistors are marked with five colour bands. The first four indicate value and tolerance in conformance with IEC62. The fifth yellow band denotes defined fusibility. ULW4 and ULW5 resistors are legend marked with type, value and tolerance. ...
Page 2
... Telephone: +44 (0)1670 822181 · Facsimile: +44 (0)1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com Maximum* ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 ΔR% 5 Body Temperature Rise 300 250 200 ULW2 150 100 50 0 200 250 300 0 Welwyn Components Typical 55/200/ ULW3 ULW4 ULW5 ...
Page 3
... Note the voltage shown is the nett voltage across the resistor. The generator open circuit voltage will be higher due to the generator's internal impedance. 6 ULW5 5 4 ULW3 & ULW2 100 ULW2 Fusing Characteristic Initial Power (W) Welwyn Components ULW5 ULW3 & 4 ULW2 100 Value (ohms) ...
Page 4
... Application Notes Application Notes 1. If the resistors are to dissipate full rated power recommended that the terminations should not be soldered closer than 4mm from the body. 2. Due to operating temperature limits imposed by some PCB materials, derating may be necessary. An estimate of the temperature rise to be expected can be calculated using the thermal impedance figures given under Electrical Data ...
Page 5
... 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 ...