Pcb terminal - Page 1
Forum section: electronics / general

author: Zfrenchy
author_rank: Contributor
timestamp: August 13, 2016, 05:44:39 am
content: Hello eevblogger,Can somebody tel me what terminal it is on a photo, and where I can buy it ?Thank you folks.Hi from dry California.Sent from my HTC6525LVW using Tapatalk

author: ataradov
author_rank: Super Contributor
timestamp: August 13, 2016, 05:58:22 am
content: Search for "Pluggable Terminal Blocks" you will find plenty of sourcing options.

author: DTJ
author_rank: Super Contributor
timestamp: August 13, 2016, 10:39:59 am
content: You'll need to measure the pitch. I think they come in at least 3, 3.81 and 5mm versions.

author: JacobPilsen
author_rank: Regular Contributor
timestamp: August 13, 2016, 07:13:51 pm
content: This screwed blocks is not good idea.Look for something with springs (i.e. Wago).

author: Zfrenchy
author_rank: Contributor
timestamp: August 14, 2016, 03:52:08 pm
content: Thank you all.Sent from my HTC6525LVW using Tapatalk

author: Zfrenchy
author_rank: Contributor
timestamp: August 14, 2016, 03:57:04 pm
content: Quote from: JacobPilsen on August 13, 2016, 07:13:51 pmI am may be old school, but I think screw terminal are better mechanically and electrically .Also the only option for stranded wire (usually used for signal cabling)Sent from my HTC6525LVW using Tapatalk

author: Monkeh
author_rank: Super Contributor
timestamp: August 14, 2016, 04:32:06 pm
content: Quote from: JacobPilsen on August 13, 2016, 07:13:51 pmWhy isn't it a good idea? We've been using screw terminals reliably for a long time. There are upsides to other types, but without knowing the application, you can't say screw terminals are a bad idea..I like the various types of screwless terminals in a variety of applications, but I also like good quality screw terminals like these. Rising clamps are effective for all wire types and suited to most environments.Quote from: Zfrenchy on August 14, 2016, 03:57:04 pmNon-screw terminals are perfectly acceptable for stranded wire. In fact, many types of screw terminal are inappropriate for small stranded wires.

author: Zfrenchy
author_rank: Contributor
timestamp: August 14, 2016, 04:34:22 pm
content: Quote from: Monkeh on August 14, 2016, 04:32:06 pmWill be good to see some experiment about that, mechanically and electrically.Dave, do it !Sent from my HTC6525LVW using Tapatalk

author: Monkeh
author_rank: Super Contributor
timestamp: August 14, 2016, 04:36:06 pm
content: Quote from: Zfrenchy on August 14, 2016, 04:34:22 pmMechanically all joints should be supported. Vibration-wise, if the wires haven't got anywhere to go, screwless is superior. Some types of screw terminal (the ones with the stupid tongue for example, and direct screw types) are terrible for stranded wire, either breaking the strands or failing to have enough bite. The tongues tend to push stranded wires out as you tighten them!Rising clamps like above don't suffer either problem.Electrically..

author: T3sl4co1l
author_rank: Super Contributor
timestamp: August 14, 2016, 05:47:26 pm
content: Spring contacts are notorious under load (illegal in some jurisdictions for household wiring!), but very common for low power connections (e.g., industrial panel wiring), where it's not a big deal.Stranded wire should never be used with screw terminals, because it frays (chance of shorts between positions), and yes, gets pushed out of the crummy kind. You should always use stranded wire with crimp ferrules. In fact, it's a CE requirement!Tim