Hydz Mini 9mm Square Smd Hom HYG9019A
Cov yam ntxwv hluav taws xob
| Yam khoom | HYG9019A |
| Rated Voltage | 3 V-p |
| Kev khiav hauj lwm voltage | Max 20Vp-p
|
| Kev siv tam sim no | Max 1mA ntawm 3.0Vp-p / Square Wave / 4KHz
|
| Suab Siab Qib | Min 65dB ntawm 10cm / 3.0Vp-p / Square Wave / 4KHz
|
| Electrostatic Peev Xwm | 12000 ± 30% pF ntawm 1 KHz / 1V
|
| Ua haujlwm kub (℃) | -20 ~ +70
|
| Cia kub (℃) | -30 ~ +80
|
| Khoom siv tsev | LCP (Dub) |
| Dimension | L9.0 × W 9.0 × H 1.9 hli
|
PS: Vp-p ＝1/2duty, square wave
Dimensions thiab Khoom siv
Ua kom zoo dua ntawm cov khoom siv hluav taws xob thiab cov tshuab tsim hluav taws xob thiab kev ua haujlwm siab ceramics, SMD piezoelectric sounders haum rau nyias, high-density tsim ntawm cov khoom siv hluav taws xob.
Daim ntawv thov
1. Ntau yam khoom siv hauv chaw ua haujlwm xws li PPCs tshuab luam ntawv thiab cov keyboards
2. Cov khoom siv hauv tsev xws li microwave qhov cub, mov cookers thiab lwm yam.
3. Kev lees paub lub suab ntawm ntau yam khoom siv suab
Daim ntawv ceeb toom (Soldering thiab Mounting)
1. Mounting
Thaum mounting tus pin davhlau ya nyob twg hom ntawm cov khoom mus rau lub Circuit Court board, thov ntxig tus pin davhlau ya nyob twg raws lub qhov ntawm lub rooj tsavxwm.Yog tias cov khoom raug nias kom lub davhlau ya nyob twg tsis nyob hauv lub qhov, tus pin davhlau ya nyob twg yuav raug thawb mus rau sab hauv ntawm cov khoom thiab lub suab yuav tsis ruaj khov.
2. Ob tog dhau ntawm lub qhov Board Thov tsis txhob siv lub rooj tsavxwm ob sab ntawm lub qhov.Yog hais tias lub melted solder kov lub hauv paus ntawm tus pin davhlau ya nyob twg, ib feem ntawm cov ntaub ntawv yas yuav yaj thiab lub suab yuav tsis ruaj khov.
3. Cov yam ntxwv ntawm soldering
(1) Flow soldering tej yam kev mob rau tus pin davhlau ya nyob twg hom
Kub: nyob rau hauv 260 ° C ± 5 ° C
· Sijhawm: hauv 10 ± 1 sec.
· Soldering ib feem yog cov hlau lead terminals tsis suav nrog 1.5mm ntawm lub cev khoom.
(2) Thov tsis txhob khaws cov khoom ncaj qha rau hauv pem teb yam tsis muaj dab tsi hauv qab lawv kom tsis txhob muaj qhov chaw ntub dej thiab / lossis qhov chaw muaj plua plav.
(3) Thov tsis txhob muab cov khoom tso rau hauv qhov chaw xws li hauv qhov chaw ntub dej lossis ib qho chaw raug tshav ntuj ncaj qha lossis kev co ntau dhau.
(4) Thov siv cov khoom tam sim ntawd tom qab lub pob qhib, vim hais tias cov yam ntxwv yuav raug txo kom zoo, thiab / los yog degraded nyob rau hauv solderability vim khaws cia nyob rau hauv tsis zoo tej yam kev mob.
(5) Thov nco ntsoov sab laj nrog peb tus neeg muag khoom lossis tus kws tshaj lij thaum twg cov khoom yuav tsum tau siv rau hauv cov xwm txheej tsis tau teev saum toj no.
4. Kev ua haujlwm ib puag ncig
Cov khoom no yog tsim los rau daim ntawv thov nyob rau hauv ib qho chaw zoo tib yam (ib txwm chav tsev kub, av noo thiab atmospheric siab).
Tsis txhob siv cov khoom nyob rau hauv ib qho chaw tshuaj xws li chlorine gas, acid los yog sulfide gas.
Cov yam ntxwv yuav degrade los ntawm cov tshuaj tiv thaiv nrog cov khoom siv hauv cov khoom.
(2) Soldering mob los ntawm soldering hlau rau tus pin davhlau ya nyob twg hom
· Kub: hauv 350 ± 5 ° C
· Sijhawm: hauv 3.0 ± 0.5 sec.
· Soldering ib feem yog cov hlau lead terminals tsis suav nrog 1.5mm ntawm lub cev khoom
(3) Reflow soldering mob rau nto mounting hom
· Kub profile: Fig. 1
· Tus naj npawb ntawm cov sij hawm: Tsis pub dhau 2 qhov siab tshaj plaws
4. Ntxuav
Thov tsis txhob ntxuav, vim cov khoom no tsis yog cov qauv kaw.
5. Tom qab Mounting cov khoom
(1) Yog tias cov khoom yog ntab los ntawm lub rooj tsav xwm luam tawm, thov tsis txhob thawb nws.Thaum nias, tus pin davhlau ya nyob twg raug thawb rau hauv cov khoom thiab lub suab yuav tsis ruaj khov.
(2) Thov tsis txhob siv quab yuam (shock) rau cov khoom.Yog tias siv zog, rooj plaub yuav tawm.
(3) Yog tias qhov teeb meem tshwm sim, thov tsis txhob rov ua dua.Txawm hais tias nws zoo li tau rov qab mus rau qhov qub, lub suab yuav tsis ruaj khov.
(4) Thov tsis txhob tshuab cua rau cov khoom ncaj qha.
Cov cua tshuab siv lub zog rau lub piezoelectric diaphragm los ntawm lub suab emission qhov;Cov kab nrib pleb tuaj yeem tshwm sim thiab tom qab ntawd cov suab yuav tsis ruaj khov.Tsis tas li ntawd, muaj qhov ua tau tias rooj plaub tuaj yeem tawm.
Daim Ntawv Ceeb Toom (Handing)
1. Piezoelectric ceramic yog siv rau hauv cov khoom no.Thov siv kev saib xyuas hauv kev tuav, vim tias ceramic tawg thaum siv zog ntau dhau.
2. Thov tsis txhob siv quab yuam rau lub piezoelectric diaphragm los ntawm lub suab emission qhov.Yog tias siv quab yuam, cov kab nrib pleb tshwm sim thiab lub suab yuav tsis ruaj khov.
3. Thov tsis txhob tso cov khoom lag luam lossis siv qhov kev poob siab lossis kev hloov kub rau nws.Yog tias muaj, LSI tej zaum yuav raug puas tsuaj los ntawm tus nqi (surge voltage) generated.qhia ib qho piv txwv tsav tsheb siv zener diode.
Daim Ntawv Ceeb Toom (Kev Tsav Tsheb)
1. Ag migration tej zaum yuav tshwm sim yog hais tias DC voltage yog siv rau cov khoom nyob rau hauv ib tug high humidity ib puag ncig.Thov tsis txhob siv nws nyob rau hauv high humidity thiab tsim lub Circuit Court tsis siv DC voltage.
2. Thaum tsav tsheb cov khoom los ntawm IC, thov ntxig qhov tsis kam ntawm 1 mus rau 2kΩ hauv series.Lub hom phiaj yog los tiv thaiv IC thiab kom tau txais lub suab ruaj khov.(Thov saib daim duab 2a).
Ntxig ib lub diode nyob rau hauv parallel rau cov khoom muaj cov nyhuv tib yam.(Thov saib daim duab 3b)
3. Flux lossis Coating Agent, thiab lwm yam, ntau yam Solvents
Nws yog ib qho ua tau rau cov kuab tshuaj kom nkag mus rau hauv cov khoom, vim tias cov khoom no tsis yog cov qauv kaw.Yog tias cov kua nkag mus rau hauv thiab txuas nrog piezoelectric diaphragm, nws qhov kev vibration tuaj yeem cuam tshuam.Yog tias txuas rau qhov txuas hluav taws xob, kev sib txuas hluav taws xob yuav ua tsis tiav.
Txhawm rau tiv thaiv lub suab tsis ruaj khov, thov tsis txhob cia cov kua nkag mus rau hauv cov khoom.
