Pulse

Value ohms

E (J)

4.7

10

22

27

33

39

47

ULW3

5.3

4.3

3.2

3.9

5.3

2.8

4.9

ULW2

1.7

3.6

1

1.3

1.7

1.75

1.8

ULW5

9.73

10.42

11.35

9.51

8.89

10.3

12.66

0

2

4

6

8

10

12

14

0

10

20

30

40

50

60

70

80

90

100

Value (ohms)

Pulse Energy Limit

(single or low repetition rate, ΔR<5%)

ULW5

ULW3 & 4

ULW2

Pulse

Value ohms

E (J)

4.7

10

22

27

33

39

47

ULW3

5.3

4.3

3.2

3.9

5.3

2.8

4.9

ULW2

1.7

3.6

1

1.3

1.7

1.75

1.8

ULW5

9.73

10.42

11.35

9.51

8.89

10.3

12.66

0

2

4

6

8

10

12

14

0

10

20

30

40

50

60

70

80

90

100

Value (ohms)

Pulse Energy Limit

(single or low repetition rate, ΔR<5%)

ULW5

ULW3 & 4

ULW2

Pulse Performance

Fusing Performance

ULW5

Value (ohms)

1.2/50μs Peak Voltage Limit

(10 pulses at 10s intervals, ΔR <5%)

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 impedence.

ULW2

ULW3 & 4

0

10

20

30

40

50

60

70

80

90

100

5

4

3

2

1

0

ULW2 Fusing Characteristic

40

30

35

45

50

55

60

60

50

40

30

20

10

0

Initial Power (W)

UL Recognised

Wirewound Resistors

ULW Series

Make Possible

07.14

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.

© TT Electronics plc

www.ttelectronicsresistors.com