Tubular Vitreous Enamelled
Wirewound Resistors
1600/1900 Series
Table 6 mounting clip dimension (mm)
See Fig. 11
Clip Type A
B
C
D
E
F
G
ref. type nom. max nom. max max max ±0.2
1601
1602
MD1
1603
52
70
90
68
86
106
29
19
17.5 14.5 4.8
4.0
3.9
7.2
MD16
H
dia
J
dia
K
nom
Auxiliary
locking
spring ref
Welwyn Components
MD4
1604
121 137
1605
108 128
1906
83
99
49
33
32.0 19.0 6.4
4.0
6.3
9.5
MD18
1607
125 146
MD3
1608
176 197
MD6
1609
240 261
Ordering Procedure
Mounting clips (and auxiliary locking
springs when required) should be ordered
in units and the type reference specified.
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.
Table 7 Mounting brackets dimensions (mm).
See Fig. 12.
Bracket
ref.
MD40
Type
1600
1905
1601
1602
MD41
1603
1604
1906
MD42
1605
1606
1908
1607
MD43
1608
1609
A
nom
78
73
50
68
91
119
81
106
183
119
121
171
235
B
nom
92
87
64
82
105
133
95
120
197
133
143
193
257
28
30
5.2
20
25
5.2
13
20
4.2
C
nom
10
D
nom
20
E
nom
4.2
Ordering Procedure
Mounting brackets should be ordered in
units and the type reference specified.
These brackets are suitable for termination styles B, 4B, AP & AW
Table 8 Mounting plug dimensions (mm)
See Fig. 13.
Type
1601
1602
1603
1604
1906
1605
1606
1908
1607
1608
1609
3.2
5.2
6.8
M6
1.6
3.7
5.3
M5
1.6
3.7
5.3
M4
A
Min.
B
Max.
C
Ordering Procedure
Mounting plugs are denoted by the prefix
‘F’ added to the size reference;
e.g. BF1602 and APF1602.
F type bushes are suitable for termination styles B, 4B AP and AW
© Welwyn Components Limited
Bedlington, Northumberland NE22 7AA, UK
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 [ WELWYN COMPONENTS LIMITED ]
