SW38-2G datasheet(106/116 Pages) AAVID

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106

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Insulating Covers

Insulating covers are designed to provide protection from accidental shock

during field service or repair.

Pan head screws not provided–MS 51957-30 or equivalent recommended–secure the cover

to the TO-3. At the typical mounting screw torque of 0.68–0.90 Nm (6-8 inch pounds), the

TO-3 cover material cold-flows around the screw head to securely fasten the cover.

Included are No.6 split washers as inserts to provide electrical connection of mounting screws

to the TO-3 collector and an insulating snap-in cover for the screw heads. A test probe hole is

provided in the top of the cover.

The 8903VB is made from thermoplastic polyester that meets the requirements of UL Bulletin

94 V-O. In addition to its excellent flammability rating, thermoplastic polyester offers resistance

to most chemical environments, heat deflection temperature to 215.6°C (420°F) and UL contin-

uous use temperature of 130°C (266°F).

41.91

(1.650)

30.23

(1.190)

28.45

(1.120)

1.19

(0.047)

THRU

6.22

(0.245)

THRU TYP (2)

22.61

(0.890)

39.88

(1.570)

9.91

(0.390)

4.57

(0.180)

DIA

5.54

(0.218)

"A"

1.47

(0.058)

3.58

(0.141)

9.52

(0.375)

"T"

"O.D."

"I.D."

TO-3 Insulating Covers

Teflon-filled Acetal Insulators for TO-3

Teflon-filled Acetal Bushings for TO-3

Part number

Material

Color

Flammability standards

8903NWG

Nylon

White

Self-extinguishing UL 94 V-2

8903VBG

Thermoplastic polyester

Black

Self-extinguishing UL 94 V-0 UL 492 Type 1

Part number

Fits notch

“A” Dim

103G

4.83 (0.190)

4.90 (0.193)

109G

6.35 (0.250)

Part number

“I.D.”

“O.D.”

“T”

110G

5.03/5.21(0.198/0.205)

6.81/6.98 (0.268/0.275)

1.57/1.40 (0.062/0.055)

113G

6.43/6.60 (0.253/0.260)

7.82/8.00 (0.308/0.315)

1.57/1.40 (0.062/0.055)

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SW38-2G Datasheet(PDF) 106 Page - Aavid, Thermal Division of Boyd Corporation

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