Filters Common Mode Ckoke

[JHCDIS]

Hi We around 1000 filters That we we do not know the part number or the measurments, can any on e help, In identifying , have attached a picture with a few markins on, Thanks in advance .. John LQ0044 & D30010 Both in the same bag

 

[Bluejets]

Get a component tester, $20.

 

[Delta Prime]

Welcome to Maker Pro. You’re going to need an inductance meter along with a capacitance meter. Measure the inductance and capacitance and plug them in to the formula provided below that will give you your cut off frequency for you’re soon to be known value of common mode choke.
It looks like a three pole pie high pass LC RF filter

L= Zo / 4 X π X fc Henries
C= 1/ 4 Zo π fc Farads
Fc = 1 / 4 π Square Root L X C
Where
Z0 = characteristic impedance in ohms
C = Capacitance in Farads
L = Inductance in Henries
fc = Cut off frequency in Hertz

 

[Bluejets]

The above $20 device will do the lot.
Then show values on oled screen.
Easy peasy.

 

[ramussons]

The thickness of the wires indicate a EMI power filter of sorts....