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Tel (718) 956-8900 • Fax (718) 956-9040

(800) 221-5510 • kec@keyelco.com

www.keyelco.com

31-07 20th Road – Astoria, NY 11105-2017

RoHS COMPLIANT ~ ISO 9001 CERTIFIED

®

SOCKETS FOR TO-3 CASE

Socket and transistor are assembled to chassis at same time, using the minimum

amount of hardware. Top molded boss ensure the transistor leads will be isolated from

the

chassis.

Various

boss

heights

available

to

accommodate

different

chassis thicknesses.

Socket is installed onto chassis using eyelets or screws. Transistor is installed af-

terwards. Assembly and repairs are simplified since socket will stay in place with-

out transistor mounted. Top molded boss or added bushing ensure the

transistor leads will be isolated from the chassis. Various boss heights available to

accommodate standard chassis thicknesses. Use Cat. No. 4606 and nylon bush-

ings for special chassis thicknesses.

CAT. NO.

A DIM.

4603

.030 (.76)

4602

.045 (1.14)

4601

.090 (2.29)

VARIOUS MOLDED BOSS HEIGHTS

CAT. NO.

A DIM.

4606

NONE

4607

.030 (.76)

4608

.045 (1.14)

4609

.060 (1.52)

4618

.125 (3.2)

.204

[5.2]

DIA.

1.530 [38.9]

.460

[11.7]

REF.

.430

[10.9]

.730

[18.6]

1.188 [30.2]

.665 [16.9]

FORMED THREAD

FOR #6-20 SCREW

(TYPE B) (2) PLS

.064 [1.63] DIA.

(2) PLS

A

.460

[11.7]

REF.

1.188 [30.2]

.521 [13.3]

.430 [11.0]

.695

[17.7]

1.000

[25.4]

.180

[4.6]

1.090 [27.7]

1.350 [34.3]

.144 [3.7]

DIA. (2) PLS

FORMED THREAD

FOR #6-20 SCREW

(TYPE B) (2) PLS

A

.220

[5.6]

DIA.

MATERIAL:

Base: Phenolic, Grade PBE, Type XP

Contacts: Brass, Tin Plate

Top Plate: Nylon, ASTM-D4066

Phenolic, Grade PBE, Type XP

(Cat. No. 4606 only)

Collector Plate: Steel, Tin Plate

FULLY MOLDED TO-3 SOCKET

CAT. NO. 4620

MATERIAL:

Base: Molded Nylon 6/6

Contacts: Brass, Tin Plate

Collector Plate: Steel, Tin Plate

Pre-assembling the socket to the chassis by eyelets or rivets permits

the installation of the semiconductor at a later stage in the assembly.

The molded top boss eliminates hardware.

.261 [6.7] DIA.

.640 [16.3]

.515 [13.1]

.344 [8.8]

.140 [3.6]

.050 [1.3]

.136 [3.5]

DIA. (4) PLS

FORMED THREAD

FOR #6-20 SCREW

(TYPE B) (2) PLS

.221 [5.6]

.430 [10.9]

1.226 [31.2]

.931

[23.7]

.521 [13.3]

1.188 [30.2]

1.250

[31.8]

1.500 [38.1]

.430 [10.9]

HEAVY DUTY SOCKET FOR TO-3 CASE

Features an all-in-one mounting plate and solder tabs, providing

complete electrical isolation of the solder tab connections.

Rated 5 Amps DC continuous and 15 Amps DC Intermittent

With transistor lead-in in-

sulating shoulders

CAT. NO.

WITH TAB

4513

“A” ONLY

4514

“A” & “B”

CAT. NO.

WITH TAB

4515

“A” ONLY

4516

“A” & “B”

Less transistor lead-in in-

sulating shoulders

CHOICE OF SINGLE OR DUAL COLLECTOR SOLDER TABS

MATERIAL:

Base: Glass Filled Polyester, UL Rated 94V-0

Contacts: Brass, Tin Plate

Collector Plate: Brass, Tin Plate

TAB 'A'

TAB 'B'

(2) INSULATING

SHOULDERS

.060 [1.52]

.210

[5.4]

DIA.

.028

[0.71]

.218 [5.6] DIA.

6-32 THREAD

(2) PLS

.700 [17.8]

MAX.

.125 [3.2] DIA. x .250 [6.4] C'BORE

.045 [1.14] DEEP

.730 [18.6]

REF.

.665 [16.9]

.450 [11.5]

1.187 [30.2]

1.600 [40.7] MAX.

.325 [8.3]

TO-3 CASE MOUNTING KITS

CAT. NO. 4733 Complete Mounting Kit

ITEM

CAT. NO. DESCRIPTION QUANTITY

A

4706

6-20 screws

2

B

4651

Mica Insulator

1

C

4608

Square Socket

1

CAT. NO. 4732 Complete Mounting Kit

ITEM CAT. NO. DESCRIPTION

QUANTITY

A

4706

6-20 screws

2

B

4651

Mica Insulator

1

C

4602

Socket

1

CAT. NO. 4734 Complete Mounting Kit

ITEM

CAT. NO. DESCRIPTION QUANTITY

A

4706

6-20 screws

2

B

4651

Mica Insulator

1

C

4684

Nylon Bushing

4

D

4606

Square Socket

1

These socket kits provide everything

needed to mount a transistor onto

a chassis in one kit. Nylon bushings

or boss will insulate transistor

leads from chassis. Mica insulator

isolates transistor from chassis. Two

6-20 screws included to mount

transistor. (Transistor not included)

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