Tubular Vitreous Enamelled

Wirewound Resistors

1600/1900 Series

Tubular Vitreous Enamelled

Wirewound Resistors

1600/1900 Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

123

09.09

Welwyn Components

A

B

C

D

E

F

G

H

J

K

Type

max

max

max

nom

max

max

nom

±.25

max

1601

33.0

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

59

1905

56.1

14.5

6.55

4.5

5.0

17.5

10

3.0

M3

-

1600

61.5

14.5

6.55

4.5

5.0

17.5

10

3.0

M3

-

1602

51.0

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

77

1906

64.3

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

90

1603

74.5

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

101

1604

102

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

128

1605

89.5

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

122

1908

102

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

134

1607

102

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

134

1606

166

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

198

1608

152

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

184

1609

216

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

248

Terminations

Styles B, 4B, AP and AW are available in all 13 tube sizes.

Styles C, CB and CP are available in sizes 1601 to 1609

inclusive, 1906 and 1908

Lugs (Figure 2): Pb free solder coated nickel iron. Denoted

by prefix B to size reference, thus B1602

Pigtails (Figure 3): 14/.193 mm copper, 150 mm minimum

length. Denoted by prefix AP, thus AP1602

Rigid wires (Figure 4): 1.2 mm diameter tinned copper, 32

mm minimum length.

Denoted by prefix AW, thus: AW1602

Lugs with screws, nuts and washers (Figure 5): Nickel

plated brass screws and nuts. Denoted by prefix 4B,

thus: 4B1602.

Ferrule, electrically isolated (Figure 6) Connection to

resistor via Pb free solder coated nickle iron lugs. Denoted

by prefix CB, thus: CB1602.

Ferrule, electrically live (Figure 7) Nickel plated brass.

Denoted by prefix C, thus: C1602.

Ferrule, electrically isolated (Figure 8): Connection to

resistor via pigtails of 14/.193 mm copper, 150mm

minimum length. Denoted by prefix CP thus: CP1602

Marking The resistors are legend marked with type

reference, resistance value, tolerance and manufacturing

date code. Value marking conforms to IEC 62.

Solvent resistance: The vitreous coating and marking are

resistant to all accepted industrial cleaning fluids.

Physical Data

Table 2 Dimensions in millimetres. See fig 2-8 for styles

Tubular Vitreous Enamelled

Wirewound Resistors

1600/1900 Series

Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com

123

09.09

Welwyn Components

A

B

C

D

E

F

G

H

J

K

Type

max

max

max

nom

max

max

nom

±.25

max

1601

33.0

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

59

1905

56.1

14.5

6.55

4.5

5.0

17.5

10

3.0

M3

-

1600

61.5

14.5

6.55

4.5

5.0

17.5

10

3.0

M3

-

1602

51.0

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

77

1906

64.3

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

90

1603

74.5

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

101

1604

102

17.5

8.2

4.5

5.0

19.5

15

3.0

M3

128

1605

89.5

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

122

1908

102

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

134

1607

102

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

134

1606

166

24.0

13.2

5.7

6.8

26.5

17

4.0

M4

198

1608

152

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

184

1609

216

32.0

19.2

7.0

9.8

32.0

22

6.4

M6

248

Terminations

Styles B, 4B, AP and AW are available in all 13 tube sizes.

Styles C, CB and CP are available in sizes 1601 to 1609

inclusive, 1906 and 1908

Lugs (Figure 2): Pb free solder coated nickel iron. Denoted

by prefix B to size reference, thus B1602

Pigtails (Figure 3): 14/.193 mm copper, 150 mm minimum

length. Denoted by prefix AP, thus AP1602

Rigid wires (Figure 4): 1.2 mm diameter tinned copper, 32

mm minimum length.

Denoted by prefix AW, thus: AW1602

Lugs with screws, nuts and washers (Figure 5): Nickel

plated brass screws and nuts. Denoted by prefix 4B,

thus: 4B1602.

Ferrule, electrically isolated (Figure 6) Connection to

resistor via Pb free solder coated nickle iron lugs. Denoted

by prefix CB, thus: CB1602.

Ferrule, electrically live (Figure 7) Nickel plated brass.

Denoted by prefix C, thus: C1602.

Ferrule, electrically isolated (Figure 8): Connection to

resistor via pigtails of 14/.193 mm copper, 150mm

minimum length. Denoted by prefix CP thus: CP1602

Marking The resistors are legend marked with type

reference, resistance value, tolerance and manufacturing

date code. Value marking conforms to IEC 62.

Solvent resistance: The vitreous coating and marking are

resistant to all accepted industrial cleaning fluids.

Physical Data

Table 2 Dimensions in millimetres. See fig 2-8 for styles

07.16

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

BI Technologies IRC Welwyn