Timeline for Unknown SMD component - PCB Designation question
Current License: CC BY-SA 4.0
18 events
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| Jul 16 at 1:46 | comment | added | Russell McMahon♦ | @user388256 I'm a moderator. I came here to try and help you after reading your migrated meta post. It would have been very helpful if you had added a ink to the question that you were originally referring to, and to this one once you had posted it. I agree with others that it appear to just be a capacitor, but this is not 103% certain. || I deleted once sentence from your comment starting "Wow ..." . The person who you (mildly) abused was trying to help, their comment was a valid suggestion and it's usually more productive to ignore perceived slights than to insult a helpful user. | |
| Jul 10 at 8:01 | history | edited | Velvet | CC BY-SA 4.0 |
provide source for the first image (see https://electronics.stackexchange.com/help/referencing)
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| Jul 9 at 9:32 | comment | added | Lundin | Now the real question is why anyone would use the designator TG instead of C for a plain old capacitor... | |
| Jul 8 at 20:10 | vote | accept | CommunityBot | ||
| Jul 8 at 19:38 | answer | added | Voltage Spike♦ | timeline score: 1 | |
| Jul 8 at 19:08 | comment | added | user388256 | @VoltageSpike LCRZ measurement: AF10kHz = 1.22nF/1.8 kOhm, MF 100Hz = 1.58nF/1.23MOhm, 120Hz = 1.37nF/~940kOhm, 1kHz = 1.17nF/24 kOhm, MF100kHz = 1.05nF/138 Ohm | |
| Jul 8 at 18:52 | comment | added | Voltage Spike♦ | Can you try it at different frequencies and post those values? Most tweezers will do 10kHz and 100kHz | |
| Jul 8 at 18:38 | comment | added | user388256 | @VoltageSpike I pulled the component off and tried measuring it with a set of LCR tweezers. Depending on the measurement setting, LCRZ is default, I get different readings. I've added photos above for reference. EDIT: It won't let me post the pics as they are apparently too large. It reads either 1.219 nF (LCRZ) or 1.819 kOhm (ESR) | |
| Jul 8 at 18:33 | comment | added | user388256 | @Justme Wow, this device is not a "life saving" medical device. As stated before, the manufacturer won't release the technical data (even to their own technicians) so we have to figure things out on our own. Research can be tight so we sometimes reach out for help. All I'm asking for is help identifying a component. I thank you for the input. Lastly, the reason I'm posting a new question is because the previous one hasn't been answered yet and I'm not allowed to comment on it to get it going again. | |
| Jul 8 at 18:18 | comment | added | Justme | The ID question is fine, but maybe you should not be repairing medical devices, as someone's life may depend on it. Well, OK, maybe if someone's life does depend on you getting it fixed. | |
| Jul 8 at 17:42 | comment | added | Voltage Spike♦ | Pull it off the board and measure it with and LCR meter | |
| Jul 8 at 17:35 | history | edited | user388256 | CC BY-SA 4.0 |
added 164 characters in body
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| Jul 8 at 17:30 | comment | added | user388256 | @Justme The board in question is the user interface for a medical injector. My best guess is that it's part of an anti-bounce circuit but without any documentation I can't be certain, which is why I posed the question. I have added additional pictures for reference. | |
| Jul 8 at 17:20 | comment | added | Justme | It would be helpful to know what the board is and what it does, where do these TG components connect to, etc. Please zoom out the picture and show more general view (if that even is your picture, or did you paste it here from another question here, which asked the same thing here : electronics.stackexchange.com/questions/649814/… ). | |
| Jul 8 at 17:18 | history | edited | user388256 |
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| Jul 8 at 17:14 | history | edited | user388256 |
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| S Jul 8 at 17:08 | review | First questions | |||
| Jul 8 at 19:41 | |||||
| S Jul 8 at 17:08 | history | asked | user388256 | CC BY-SA 4.0 |