4640 Keystone Electronics, 4640 Datasheet
4640
Manufacturer Part Number
4640
Description
INSULATOR MICA 1.300X.810"D PLAS
Manufacturer
Keystone Electronics
Specifications of 4640
Accessory Type
Insulator
For Use With/related Products
TO-3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
4640K
These precision stamped mica insulators provide good thermal
conductivity (.009 watts per square inch per degree celsius per inch in
thickness). Excellent thermal resistance 1100°F. Dielectric constant of 7
at 1000 Kilohertz.
FOR TO-3 CASES
FOR TO-36 CASES
FOR TRANSISTOR CASES
THREADED STUD
CAT. NO. 4637
•
RAPID HEAT DISSIPATION
.003 THICK MICA
31-07 20th Road
.003 THICK MICA
.003 THICK MICA
.003 THICK MICA
4678
4679
4680
4681
4682
4683
CAT.NO.
CAT.NO.
CAT.NO.
CAT.
NO.
4651
4652
4653
4636
4644
4655
4656
4657
4659
Inside Dia. Outside Dia.
TRANSISTOR MICA INSULATORS
1.625 1.093
1.560 1.050
1.655 1.063
1.655 1.063
1.655 1.063
1.125
1.250
1.062
1.187
.120
.140
.171
.187
.265
.328
ID
A
A
A
.130
.140
.187
.187
B
B
B
•
Astoria, New York 11105-2017
.375
.375
.500
.625
.750
.875
OD
.093
.203
.166
.052
.270
.187
.156
.187
.187
C
C
C
For Screw
CAT. NO. 4640
Size
5/16
.166
.171
.166
.166
.166
.203
.203
.187
.250
1/4
10
4
6
8
D
D
D
•
HIGH DIELECTRIC STRENGTH
e-mail: kec@keyelco.com
CAT. NO. 4662
CAT. NO. 4661
CAT. NO. 4664
CAT. NO. 4663
INSULATORS FOR VARIOUS TO-66 CASES
INSULATORS FOR VARIOUS TO-3 CASES
•
(718) 956-8900
PLASTIC CASE MICA INSULATORS
CAT. NO. 4669
ORDERING INFORMATION: Minimum quantity 100 pieces of an item.
MATERIAL SPECIFICATIONS:
Modifications:
insulators on this page. Tolerance for thickness is plus or minus .001.
order. Prompt quotations will be rendered.
•
WebSite: keyelco.com
•
•
FAX (718) 956-9040
NON-TOXIC
CAT. NO. 4667
CAT. NO. 4658
CAT. NO. 4665
CAT. NO. 4671
Special thickness and other materials available on special
.003 thick mica is used for all the
•
LOW COST
CAT. NO. 4668
CAT. NO. 4674
CAT. NO. 4660
CAT. NO. 4666
CAT. NO. 4672
CAT. NO. 4673
•
FROM STOCK
.141
.115
91
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