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Product Specification Part no : 37-256-31 Description : F/ROD 9.525X203.2/F14 Issue No : 01 Issue Date : 12.02.03 UoM : Each Electrical specification: S.No PARAMETERS TEST CONDITION SPECIFICATION

1 Permeability F=1MHz STD±10% 2 Q F=1MHz STD +30%/-10%

Mechanical specification:

ID PARAMETER SPECIFICATION A Diameter 9.23-9.80 mm B Length 197.10-209.30 mm

1.- Bow gauge 11.30mmØ, full rod length.

B

A

Relative Loss Factor vs. Frequency

Initial Permeability vs. Temperature

Complex Permeability vs. Frequency

Dynamic Magnetisation: Typical B-H Loops

Data is derived from measurements on a ring core of 30mm outside diameter.

Parameter Symbol Standard Conditions Unit F14of test

Initial Permeability B<0.1mT - 220

(nominal) 10kHz 25°C ±20%

Saturation Flux H=796 A/m = 10 OeDensity (typical) 25°C mT 350

Remanent Flux H➞ 0 (from near Saturation)Density (typical) 10kHz 25°C mT 217

Coercivity B➞ 0 (from near Saturation)(typical) 10kHz 25°C A/m 172

Loss Factor B<0.10mT 500kHz 40

(maximum) 1MHz 10-6 42

25°c 2MHz 50

Curie Temperature(minimum) B<0.10mT 10kHz °C 270

Temperature Factor +25°C to +55°C 12 to

B<0.10mT 10kHz °C 30

Resistivity 1 V/cm ohm-(typical) 25°C cm 105

Bsat

Br

-

Hc

ΘC

Material Specification

ρ

F14Material Type: Nickel-Zinc Ferrite

Properties: *Low loss factors at mediumfrequencies

*High suppression impedanceat high frequencies

Frequency range: Up to 3MHz (Low losses)

Over 100MHz (Suppression)

Typical Applications: RF Suppression, baluntransformers, aerial rods,medium frequency tuned circuits.

Available core shapes: Rods, Chokes. ∆µµi

2.∆T

tan δ(r+e)

µi