9077025002 - FAIR-RITE PRODUCTS

U Cores (9077025002)

Part Number: 9077025002

77 U CORE

Explanation of Part Numbers: Digits 1&2 = product class, 3&4 = material grade.

The U core offers an economical core design with a nearly uniform cross- sectional area. In a power ferrite material they are

frequently used in output chokes, power input filters and transformers for switched- mode power supplies and HF fluorescent

ballasts.

For any U core requirement not listed in the catalog, please contact our customer service group for availability and pricing.

Catalog Drawing

3D Model

Weight indicated is per pair or set.

Weight: 17.5 (g)

Chart Legend

•An I core, 9377024002, is available for these U cores. See I Core Section of our catalog.

Σl/ A : Core Constant, le : Effective Path Length, Ae : Effective Cross- Sectional Area, Ve :

Effective Core Volume

AL : Inductance Factor

Electrical Properties

AL(nH) 790 Min

Ae(cm2) 0.4

Σl/ A(cm-1) 20.7

le(cm) 8.4

Ve(cm3) 3.36

AL value is measured at 1kHz, < 10 gauss.

These U cores have the same minimum cross- sectional area as the listed effective cross- sectional area.

Dim mm mm tol nominal inch inch misc.

A 25.4 ±0.75 1 _

B 15.75 +0.25 0.625 _

C 6.35 ±0.25 0.25 _

D 9.4 Min 0.37 Min

E 12.45 Min 0.49 Min