Questions tagged [cables]
Questions about cable types, properties, ratings and construction.
1,030 questions
29 votes
4 answers
2k views
Why are ferrite cores on cables less common in consumer electronics?
I remember in the early 2000s, ferrite cores seemed to be all over. They were on the Playstation conttoller's cable, on USB cables, TVs would come with clip-on ferrite to put on your cables, it seemed ...
- 657
2 votes
2 answers
116 views
Closing switch detection with long cables
I am trying to detect the closing of a switch to GND (N.O. between GND and input) on a long cable of 50m so a total length of 100m including the return (20AWG). The detection is low speed. It works ...
- 21
2 votes
2 answers
274 views
Cable impedance at 50R each wire against 100R cable recommendation
We will be using SN65LVDS1 (driver) and SN65LVDT2 (receiver). We will use a shielded twisted-pair cable between the devices. The chip manufacturer diagram below shows 50R each wire. Our cable supplier ...
- 659
1 vote
1 answer
71 views
Redesigning a compact board-to-board connection: FFC would be a good choice?
I’m working on a redesign of a board that currently uses a 40-pin connector. My idea is to replace it with a new connector and link the two boards using a flexible flat cable (thin and bendable). My ...
- 981
2 votes
2 answers
272 views
Are electrical appliances wires in houses in the US thicker than in EU and why?
I guess because the 120 V in the US compared to the 240 V used in the EU, the electric currents in general will be higher in the US. Nevertheless, I am not so sure if this necessarily translates also ...
- 152
1 vote
1 answer
97 views
How do I disconnect my piano keyboard's circuit board connectors?
Had some issues with my tact switches on my keyboard's panel and decided to replace them. There appears to be two boards, one for the right set of buttons and one for the left. They're connected by ...
- 13
1 vote
2 answers
188 views
Weird TV balun cable
I have a strange cable with a plastic enclosure on one end containing a standard 300Ω to 75Ω balun (a 2:1 autotransformer). There are 3 labels on the encolosure: "75Ω IN", "75Ω OUT"...
- 916
1 vote
0 answers
69 views
Looking for ACES board-to-board connector and extension solution
I'm trying to identify and source the exact board-to-board connector shown in the attached images. The connector is manufactured by ACES and is used to connect a daughterboard to the mainboard in a ...
- 21
1 vote
1 answer
113 views
DMX lighting system: using microphone cable as well as DMX cable
The lighting system of our church is in need of an update, so I'm shopping for parts including cables. At the moment, the lighting system uses a mix of audio cable and DMX cable, sometimes on the same ...
- 257
1 vote
3 answers
122 views
estimate hifi speaker cable diameter/cross section [duplicate]
I have the variables - speaker resistance 8 Ohms, amp power 70 Watts per channel @ 8 Ohms, plus speakers max 8 meters from the amp. Bit confused, but intrigued as to how to roughly calculate cable ...
- 121
6 votes
1 answer
505 views
Best Practices for Cable Shield Termination on Floating Devices
I’m connecting two floating handheld devices, A and B, with a single cable that carries: A 6.78 MHz wireless-power RF link over an internal coax Multiple digital signal twisted pairs (each pair ...
- 71
1 vote
2 answers
99 views
Does USB PD sink requires e-marker somewhere?
I built a device that draws current from a powerbank. The front-end for PD sink is an STUSB4500QTR. It is tuned to negociate 9V/2A. System is connected like this: ...
- 639
-1 votes
1 answer
120 views
2 pin connector type [closed]
Can anyone identify what type of connector this could be?
0 votes
1 answer
167 views
What type of coaxial connector is this?
I am trying to figure out what type of female coaxial connector this is I tested an 50 ohm impedance SMB connector, and it almost fit, but it was not correct. The outer diameter is about 3.5 mm. ...
- 21
0 votes
3 answers
84 views
Dsub cable and VGA cable in non-VGA use [closed]
I'm using a time tagger circuit in which the fast card (Becker & Hickl GmbH SPC-130EMN) and the router (HRT-82) are connected via a Dsub cable (the one with three rows of five pins). Can I use a ...
