What is this circuit component?

[Arthur-Canada]

Anyone know what is this component labeled 8838?

[rickb]

Is that a ceramic package with a glass window? Could be a crystal resonator. A better straight on photo, perpendicular to the window would be nice. 8838 looks like a date code, 38th week of 1988. Need a better view of the second line. Anything on the back?

Rick

[Carl-NC]

Looks like a tuning fork crystal. The glass window allows it to be laser trimmed.

[Polymer]

This has sparked my curiosity. I agree that it's most probably a tuning fork resonator. 220.0 kHz perhaps?



To leave nothing out, there is a remote possibility it may be a resistance temperature sensor.



It looks like a 22 MegaOhm resistor partially hiding beneath the mystery component.
I'm mentioning it, because I've never seen such a high resistor value on a "normal" PCB, just in high voltage circuits.

Link: http://www.directindustry.com/prod/s...70-499111.html

[Carl-NC]

It looks like a 22 MegaOhm resistor partially hiding beneath the mystery component.
I'm mentioning it, because I've never seen such a high resistor value on a "normal" PCB, just in high voltage circuits.

Also could be the feedback R in a Pierce oscillator. However, I don't see any shunt caps.

[kt315]

glass capacitor. use GOOGLE.

[Phiphi]

Could it be a 220 uF capacitor ?

[kt315]

no no. desolder it and measure on C range.

[Skippy]

It's a tuning fork crystal, 100%. I would assume 220 kHz, it's a package I've come across before, CC1V, I think, though that may be with a metal lid, rather than the glass? top.
Edit: See here.
http://www.directindustry.com/indust...or-100861.html

[moodz]

Tuning fork crystal by STATEK. 220 KHZ ... similiar to these ( 32.768 Khz ).

http://www.ebay.com.au/itm/QTY-100-C...sAAOxymcdRidGB

your picture shows an older version ( round leads )

[Skippy]

I assumed his example was a standard SMD one, with wires hand-soldered onto it, so it could be used on the through-hole board.

[moodz]

You can tell from the date code its not likely to be smd.

[kt315]

skippy... did you see THAT in SMD... in 70-th?? i see you so young and thinking there was SMD )))))
you are new generation people are not able to grasp lamps era... simple glass oldier cap is something of quartz or 'tuning fork crystal' for you )))))
you even absoliutely do not know THE fact that there were glass capacitors using everywhere )))

[Skippy]

I've been working with SMD as a hobbyist since 1980, and professionally since 1984.
Regarding this specific package/part, that was in 1988, when a 3.6 MHz crystal in this SMD package was used as part of a synchronous motor driver. It was a troublesome part, the oscillator frequently didn't start, and we ended up substituting it with a 3.5795...MHz ( NTSC TV) crystal in a small leaded cylindrical package, fixed in place with glue, and with the leads bent all over to reach the board pads. Ugly, but it worked.

It's hard to estimate how old the equipment shown in the original post is, but late 1980's / 90's seems likely, so SMD parts would definitely have been available. I'm curious about the original leaded part the circuit was designed, I suspect it was probably a ceramic resonator, like those made by Toko (CRL,CRK series) and Murata. They were quite commonly used at 455 KHz for radio circuits, but I have seen them down to 100 KHz.

[moodz]

Looks like the OP is reverse engineering the cct ..possibly removing some sort of potting / epoxy .. note also the chip iss have been scratched off. If the OP could post a picture of the back of the component then we could refine our opinions. Dont think its a glass cap though ☺