RM Cores (6278230121)

Part Number: 6278230121

78 RM CORE SET

RM (Rectangular Modulus) cores allow better shielding than E type geometries while also providing easier winding accessibility and better power dissipation than a pot core configuration. Fair-Rite’s standard RM cores all have a solid center post and standard height, low profile and alternate materials are available upon request.

• RM cores can be supplied with the center post gapped to a mechanical dimension or an AL value.

Catalog Drawing
3D Model

Weight indicated is per pair or set.

Weight: 13 (g)

Dimmmmm tolnominal inchinch misc.
A22.75± 0.450.896_
B8.2± 0.100.323_
C10.8± 0.200.425_
D5.5± 0.150.217_
E17.3± 0.300.681_
F8.4± 0.150.331_
G9.8min0.386min
J19.1± 0.400.752_

Chart Legend
Σl/A  :  Core Constant,    le :  Effective Path Length,    Ae :  Effective Cross-Sectional Area,    Ve :  Effective Core Volume
AL :  Inductance Factor  
Explanation of Part Numbers: Digits 1 & 2 = product class and 3 & 4 = material grade.

Electrical Properties
AL(nH)3000 ±25%
Ae(cm2)0.6
Σl/A(cm-1)6.7
le(cm)4.03
Ve(cm3)2.419
Amin(cm2)0.554

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

Fair-Rite Products Corp.     One Commercial Row, Wallkill, New York 12589-0288
888-324-7748      845-895-2055      Fax: 845-895-2629      ferrites@fair-rite.com      www.fair-rite.com