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

126

Issue E · 10.05

Welwyn Components

Bracket

Type

A

B

C

D

E

ref.

nom

nom

nom

nom

nom

MD40

1600

78

92

10

20

4.2

1905

73

87

1601

50

64

1602

68

82

MD41

1603

91

105

13

20

4.2

1604

119

133

1906

81

95

MD42

1605

106

120

1606

183

197

20

25

5.2

1908

119

133

1607

121

143

MD43

1608

171

193

28

30

5.2

1609

235

257

Ordering Procedure

Mounting brackets should be ordered in

units and the type reference specified.

Ordering Procedure

Mounting clips (and auxiliary locking

springs when required) should be ordered

in units and the type reference specified.

Ordering Procedure

Mounting plugs are denoted by the prefix

‘F’ added to the size reference;

e.g. BF1602 and APF1602.

Clip Type

A

B

C

D

E

F

G

H

J

K

Auxiliary

ref.

type nom. max nom. max max max ±0.2

dia

dia

nom

locking

spring ref

1601

52

68

1602

70

86

MD1 1603

90

106

29

19

17.5 14.5 4.8

4.0

3.9

7.2

MD16

MD4 1604 121 137

1605 108 128

1906

83

99

1607 125 146

MD3 1608 176 197

49

33

32.0 19.0 6.4

4.0

6.3

9.5

MD18

MD6 1609 240 261

These mounting clips are suitable for termination styles C, CB and CP.

MD4, 5 and 6 have an ear formed in the bottom surface of the bracket to

prevent rotation of the mounting plate. The auxiliary locking springs

ensure positive retention of the tube under severe mechanical shock

conditions. See Figure 11.

These brackets are suitable for termination styles B, 4B, AP & AW

F type bushes are suitable for termination styles B, 4B AP and AW

Type

A

B

C

Min.

Max.

1601

1602

1603

1.6

3.7

5.3

M4

1604

1906

1605

1606

1.6

3.7

5.3

M5

1908

1607

1608

3.2

5.2

6.8

M6

1609