PD Caps

Semirigid, encapsulant-lined

heat-shrinkable end caps

Heat-shrinkable, dual wall PD Caps

inexpensively encapsulate crimped

electrical connections, including

those on motor coils. They remain

tightly in place for the life of the

motor. PD Caps are manufactured

from radiation-crosslinked polyolefin.

With brief heating, the outer jacket

of the PD Cap shrinks while the inner

wall flows into voids in the crimp,

creating an encapsulated and

electrically insulated connection.

PD Caps are not intended for use

where immersion in fluids is required.

An operator can insulate connections

at approximately twice the speed of

conventional methods, which require

tape-wrapping, or slip-on tubing.

PD Caps can be installed in seconds

using standard hot-air or infrared

heating tools. No special operator

training is required.

Temperature rating

Full recovery temperature:

135°C

Continuous operating temperature:

–55°C to 110°C

Specifications*

Type

Raychem

UL

CSA

PD Caps

PD Caps SCD

E85381

LR31929

*When ordering, always specify latest issue.

Dimensions (millimeters/inches)

PD Cap as supplied

PD Cap after unrestricted recovery

Size

A nom.

B min.

C min.

D max.

W total**

PD Cap 1/8

22.0

0.87

12.7

0.50

3.2

0.125

0.58

0.023

1.22 ± 0.15

0.048 ± 0.006

PD Cap 3/16

25.4

1.00

15.2

0.60

4.7

0.187

1.52

0.060

1.57 ± 0.20

0.062 ± 0.008

PD Cap 1/4

28.4

1.12

15.2

0.60

6.4

0.250

2.03

0.080

1.98 ± 0.20

0.078 ± 0.008

PD Cap 3/8

31.8

1.25

18.3

0.72

9.5

0.375

2.29

0.090

2.08 ± 0.25

0.082 ± 0.010

PD Cap 1/2

38.1

1.50

21.6

0.85

12.7

0.500

2.29

0.090

2.54 ± 0.25

0.100 ± 0.010

**Wall thickness will be less if recovery is restricted during shrinkage.

Ordering information

Color

Black

Size selection

Always order the largest size that will shrink snugly over the component being covered.

Standard packaging

In pieces

Ordering description

Specify product name, size, and color; for example, PD Cap 1/4-0 (0=Black).



®

Outer Jacket

Heat-shrinkable, semirigid polyolefin

Inner Wall

Meltable polyolefin

W

D

C

A

B