Help identifying 4-terminal ceramic component "J 10.7B"

Thread Starter

jbriddle

Joined Jan 20, 2020
6
Hello. I'm so pleased to find a forum for component identification!

I'm trying to track down the part in the picture below. It's a 4-terminal ceramic component. It's labeled "J 10.7B" and "Cm L". The PCB label is "F101" but I doubt it's a fuse.

The component is used in a Sennheiser mikroport Diversity Receiver EM 2003-90H HiDyn wireless mic receiver and amplifier. The receiver looks pretty ancient (it says it was made in "West Germany"!).

Thank you for your help!
Jeremy

20200119_045959 copy.jpg
 

bertus

Joined Apr 5, 2008
20,319
Hello,

There is a difference in bandwidth between the A and B version.
Also the color dot is telling you more about the center frequency.
See that attached datasheet for more info.

Bertus
 

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Thread Starter

jbriddle

Joined Jan 20, 2020
6
Hello,

There is a difference in bandwidth between the A and B version.
Also the color dot is telling you more about the center frequency.
See that attached datasheet for more info.

Bertus
Thank you for the additional info, Bertus. But I'm still a little confused. Please excuse my ignorance!

Looking at your datasheet, I see that under "Center Frequency" there is a reference to both "Red" and "B" but they don't refer to one another. But what you're saying is that the red dot on my IF filter refers to the center frequency (i.e. 10.70MHz +/- 30kHz) and the "B" refers to bandwidth. I don't see a "B" option anywhere else except for the "SFJ10.7MB5". Is that what you mean? Does the "B" mean that I have a component equivalent to SFJ10.7MB5?

Thanks again,
Jeremy

Screen Shot 2020-01-20 at 11.50.14 AM.png
 

bertus

Joined Apr 5, 2008
20,319
Hello,

The B stands for the lower lines on the right.
The filter is 180 kHz +/- 40 kHz.
The red shows a center frequency of 10.70 MHz +/- 30 kHz.

Bertus
 
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