Māhele 1 Nā ʻano IDENTIFICATION maʻamau o nā ʻāpana polar SMT

Pono e uku nui ʻia i nā mea polarity i loko o ke kaʻina hana PCBA, no ka mea, hiki i nā hewa ʻāpana kuhikuhi ke alakaʻi i nā ulia pōpilikia a me ka hemahema o ka papa PCBA holoʻokoʻa.No laila, he mea koʻikoʻi loa ia no ka ʻenehana a me nā limahana hana e hoʻomaopopo i nā mea polarity SMT.

I. Ka wehewehe o ka polarity
ʻO ka polarity e pili ana i nā pou maikaʻi a me nā pou ʻino a i ʻole nā ​​pine mua o nā ʻāpana i ka ʻaoʻao like me nā PCB (papa kaapuni paʻi).Inā ʻaʻole i kūlike ke kuhikuhi o nā ʻāpana a me ka PCB, ua kapa ʻia ʻo ia he ʻino ʻino.

II.ʻano ʻike polarity
1. ʻAʻole polarity ka pale o ke ʻano chip

2. Kahiko

2.1 ʻAʻole polar nā capacitors seramika

2.2 He polar nā capacitors Tantalum.ʻO ka papa PCB a me ka mea hoʻohana e hoʻopaʻa inoa: 1) Lepili lipine;2) E kaha “+”;3) Hoailona bevel.

2.3 Aluminum electrolytic capacitor i polarity.ʻO ka hōʻailona ʻāpana: hōʻike ka pūʻulu kala i ka maikaʻi ʻole;ʻO ka hōʻailona PCB: ʻO ka lipine a i ʻole "+" e hōʻike ana i ka pou maikaʻi.

3. Inductor

3.1 ʻAʻohe koi polarity no nā pūʻolo hopena ʻelua e like me ka chip coil.

3.2 Loaʻa i nā inductors multi-pin nā koi polarity.Māka ʻāpana: kiko/” 1 “kū no ke kiko polarity;E kaha ma PCB: Dot/circle/” * “hōʻike i ka polarity.

4. Māmā Emitting Diode

4.1 He polarity ka LED papaʻaina SMT.Māhele maikaʻi ʻole: ʻaʻohe ʻōmaʻomaʻo;PCB hōʻailona maikaʻi ʻole: 1) pā kū pololei, 2) lipine, 3) pale kilika ʻoi ʻoi Angle;4) ʻO ka paʻi kiʻi ʻana he ʻelele pahu "ʻokoʻa".

5. Diode (9W)
5.1 He polarity ka diode me ka pā pākaukau SMT.Māhele hōʻailona maikaʻi ʻole :1) lipine, 2) ʻāwīwī, 3) māka kala (vitreous);ʻO ka lumi hoʻololi hou ʻana o PCB: 1) ka pahu kūpaʻa, 2) lipine, 3) kiwi paʻi pale, 4) pahu "Modernizing".

Hāʻawi ʻo NeoDen i nā ʻōnaehana laina SMT holoʻokoʻa, me ka umu SMT reflow, ka mīkini hoʻoheheʻe nalu, ka mīkini ʻohi a me ka waiho ʻana, ka mīkini paʻi solder, Reflow umu, PCB loader, PCB unloader, chip mounter, SMT AOI mīkini, SMT SPI mīkini, SMT X- ʻO ka mīkini Ray, nā lako laina hui SMT, nā lako hana PCB SMT ʻāpana, a me nā ʻano mīkini SMT āu e pono ai, e ʻoluʻolu e kelepona mai iā mākou no ka ʻike hou aku:

ʻO Hangzhou NeoDen Technology Co., Ltd

Pūnaewele:www.smtneoden.com

leka uila:info@neodentech.com