Author Topic: to SMD or not SMD... (Read 7024 times)

insomartin · « **on:** August 11, 2009, 10:11:51 PM »

hehe ngayon pa lang ako nagstart mag SMD soldering. and got hooked!

kasi ambilis compared to TH with all the "mil perfect" drilling. sana may smd sampler sa e-gizmo. something like yung usual values nang capacitor, resistor, diodes and transistors. it's also CHEAPER costing only .25 cents sa e-gizmo ang resistors. it's a LOT difficult to solder than th and sensitive enough to get component failure more often since it's smaller. and almost non-visible yung solder cracks.

but why students and hobbyist don't go SMD? is it availability or prototyping?

(btw: you can't breadboard on smd )

Philippine Electronics Forum · « **on:** August 11, 2009, 10:11:51 PM »

mArKhAo · « **Reply #1 on:** August 11, 2009, 10:15:47 PM »

my SMD converter na ata sa e-gizmo... hehe, ung smd gagawin mong DIP ang arangement ng paa... mas mganda smd para sakin na tamad hehe

Philippine Electronics Forum · « **Reply #1 on:** August 11, 2009, 10:15:47 PM »

insomartin · « **Reply #2 on:** August 11, 2009, 10:18:10 PM »

instructions on smd soldering. martin style...

1. lagay stensil sa pcb.
2. squeegee solder paste.
3. kunwari nag lalagay nang candy sprinkles. (parts)
4. lagay toaster, nuood tv, wait.
5. TING!

smile na lang.

Philippine Electronics Forum · « **Reply #2 on:** August 11, 2009, 10:18:10 PM »

Mayalin22 · « **Reply #3 on:** August 11, 2009, 10:24:20 PM »

Quote from: Martin Mystère on August 11, 2009, 10:18:10 PM

2. squeegee solder paste.

sister san ka nakakabili ng solder paste?

Philippine Electronics Forum · « **Reply #3 on:** August 11, 2009, 10:24:20 PM »

insomartin · « **Reply #4 on:** August 11, 2009, 10:33:10 PM »

yung mall sa tabi nang quiapo church. baba nang jollybee. may cellphone repairshop po dun. 50 grams @ 90 pesos, the cheapest china brand. no clean too. water soluble.

Philippine Electronics Forum · « **Reply #4 on:** August 11, 2009, 10:33:10 PM »

Mayalin22 · « **Reply #5 on:** August 11, 2009, 10:39:52 PM »

thanks! noted! don ko binili Bench PSU ko

insomartin · « **Reply #6 on:** August 11, 2009, 10:44:37 PM »

buy the white ones. nasa sealed plastic na maliit na lalagyan. green yung label (natuklap na kasi yung akin din na mabasa.) wag yung nasa lata. keep refrigerated... water soluble kaya saglit lang nag eevaporate na yung flux.

marcelino · « **Reply #7 on:** August 11, 2009, 10:49:17 PM »

Quote from: Martin Mystère on August 11, 2009, 10:11:51 PM

but why students and hobbyist don't go SMD? is it availability or prototyping? (btw: you can't breadboard on smd )

exactly... tulad kong nasa probinsya... wala nyan dito saamin.

di pa nga masyado gamit ang presentisized pcb dito... oh... wala pala kasing mabibilihan! buti nalang ang e-gizmo, nagsiship!

marcelino · « **Reply #8 on:** August 11, 2009, 10:51:30 PM »

but... ok saakin ang SMD. walang problem.

OT: may bilihan ba dito saatin ng breakout board for TQFP, 100pins?

insomartin · « **Reply #9 on:** August 11, 2009, 10:52:56 PM »

qualitek
Sales Office Manila Philippines
2651 Rockefeller St., Brgy. San Isidro, Makati City, Manila, Philippines 1200
Tel:(632) 845-4028 • sales@qualitek-philippines.com

rdpzycho · « **Reply #10 on:** August 11, 2009, 10:57:22 PM »

ako 'di gumagamit ng paste. mano-mano lahat.

mostly 0603 sa resistors at capacitors. ang pinakanahihirapan ako 'yung walang exposed pads sa gilid, pero with proper technique, mapapagapang 'yung lead papasok sa pads.

siguro dahil hindi ganung kadali mag-prototype ng SMD. kapag may patches sa PCB ang daming kakaskasin at puputulin.

sa Alexan naaalala ko meron nung common values na SMD, resistors and capacitors.

Quote from: Martin Mystère on August 11, 2009, 10:52:56 PM

qualitek
Sales Office Manila Philippines
2651 Rockefeller St., Brgy. San Isidro, Makati City, Manila, Philippines 1200
Tel:(632) 845-4028 • sales@qualitek-philippines.com

'di ba mahal sa qualitek?

tiktak · « **Reply #11 on:** August 11, 2009, 11:02:07 PM »

ok din sa akin SMD though di ko pa na try gumawa ng project na SMD pati resistors yung mga SMD lang na MCU, ang cute pa tignan ng mga circuits compared to thru hole

insomartin · « **Reply #12 on:** August 11, 2009, 11:27:34 PM »

ma

Quote from: rdpzycho on August 11, 2009, 10:57:22 PM

'di ba mahal sa qualitek?

mahal pero mas mahal sa manscorp $44 + shipping yung half kilo.

insomartin · « **Reply #13 on:** August 11, 2009, 11:30:48 PM »

Quote from: marcelino on August 11, 2009, 10:51:30 PM

but... ok saakin ang SMD. walang problem.
OT: may bilihan ba dito saatin ng breakout board for TQFP, 100pins?

meron po. pero check ko po availability, send ko na lang po yung pcb layout para pag salpak nung breakout swak sa pcb nyo. (i smell something fishy na)

marcelino · « **Reply #14 on:** August 11, 2009, 11:34:42 PM »

Quote from: Martin Mystère on August 11, 2009, 11:30:48 PM

meron po. pero check ko po availability, send ko na lang po yung pcb layout para pag salpak nung breakout swak sa pcb nyo. (i smell something fishy na)

you manufacture??? wow!!!

may USB PIC kasi ako... gusto kong aralin... 2 100pins na tqfp at isang 64pins.

nothing fishy!!! just want to learn! hehehe

rdpzycho · « **Reply #15 on:** August 11, 2009, 11:36:38 PM »

Quote from: Martin Mystère on August 11, 2009, 11:27:34 PM

ma
mahal pero mas mahal sa manscorp $44 + shipping yung half kilo.

may free solder paste ako galing qualitek. hehehe. hiningi lang kasama ng lead free solder wires.

'yung mga RF guys dito malamang puro SMD na ang gamit. mas predictable kasi ang parasitics ng PCB lang kaysa kasama pa 'yung leads ng components.

insomartin · « **Reply #16 on:** August 12, 2009, 12:55:35 AM »

Quote from: marcelino on August 11, 2009, 11:34:42 PM

you manufacture??? wow!!!
may USB PIC kasi ako... gusto kong aralin... 2 100pins na tqfp at isang 64pins.
nothing fishy!!! just want to learn! hehehe

hehe nakakaamoy lang ako nang new monkey business. haha. anyways.

here's the sample breakout.
gamit ko yung 20 pin header male/female.

insomartin · « **Reply #17 on:** August 12, 2009, 01:16:01 AM »

40 pin pla yan... gulp.

marcelino · « **Reply #18 on:** August 12, 2009, 02:00:51 AM »

i was thinking of something like this:

and this:

hehehe...

insomartin · « **Reply #19 on:** August 12, 2009, 02:16:38 AM »

ah okie okie! gets ko na

Philippine Electronics Forum · « **Reply #19 on:** August 12, 2009, 02:16:38 AM »

Author Topic: to SMD or not SMD... (Read 7024 times)

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