Understanding Plastron's Catalog Format
Plastron's catalog provides a quick method of locating the parts you need to fulfill product applications. With some exception *(see below), the catalog format is designed to reference common core sizes rather than different bobbin types. Therefore, you can now find bobbins of similar core size in the same section of the catalog. For example, if you are looking for the following parts you will find all of these in the section titled "EI 21". (click on the part number link to view the drawing)
Bobbin Type
Core Size
Plastron Part No.
     
Vertical, 2 flange, no terminals
EI 21 x 1/2
0015 -01-10NY
Vertical, 3 flange, no terminals
EI 21 x 5/8
0270 -04-10NY
Vertical, 2 flange, 8 P/C terminals on .250 ctrs., no standoffs
EI 21 X 1/2
0363R-32-10NY
Horizontal, 2 flange, 12 square pins, with standoffs
EI 21 x 1/2
0726A-32-80GF
Horizontal, 3 flange, 8 P/C terminals on .250 ctrs., no standoffs
EI 21 x 5/8
0963A-31-90GF
* As noted above, the following bobbin types are in a separate catalog section:
E Core
Header
PQ Core
UI
IF & Relay
VDE Style
Pot Core
Round
RM Core
NOTE: Dimensions are for reference only and may vary depending on material type used.

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