PCB keyboard (Portable electronic keyboard circuit)
PCB keyboard (Portable electronic keyboard circuit)
PCB membrane hloov
PCB membrane hloov txhais tau hais tias tus qauv thiab Circuit Court ntawm qhov hloov pauv yog ua los ntawm cov khoom siv hluav taws xob sib txuas tooj liab clad board.
Cov yam ntxwv ntawm PCB membrane hloov yog tias cov khoom siv tau yooj yim siv, cov txheej txheem ruaj khov, tsis muaj zog, thiab qee cov khoom hauv Circuit Court tuaj yeem ncaj qha welded rau sab nraum qab ntawm PCB.Nyob rau hauv rooj plaub ntawm ib cheeb tsam me me, cov txheej txheej tawv tawv tuaj yeem raug tshem tawm.PCB tuaj yeem ua nrog lub thickness ntawm 0.5mm-3.0mm.
PCB membrane keyboards feem ntau siv hlau qhia raws li kev sib cuag labyrinth, yog li lawv muaj kev xav zoo dua.Qhov tsis zoo yog tias nws tsis yooj yim npaum li qhov hloov pauv hloov pauv mus rau qhov hloov pauv thiab txuas hauv tag nrho lub tshuab, thiab feem ntau nws yog qhov tsim nyog rau vuam cov txuas thiab ua cov hlau lead hauv lub tiaj tus.Ntxiv nrog rau cov teeb liab buzzer thiab LED qhov taw qhia, cov ntaub ntawv tawm tswv yim ntawm cov tawv nqaij hloov pauv feem ntau tuaj yeem siv hlau tuav shrapnel.
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LGF luminous membrane hloov, LED membrane keyboard, keyboard kab hloov, waterproof keyboard, membrane keyboard, ultra-nyias mus khawm.Controller membrane hloov
Yam Tsis Muaj
| Membrane hloov parameters | ||
| Cov khoom siv hluav taws xob | Ua haujlwm voltage: ≤50V (DC) | Ua haujlwm tam sim no: ≤100mA |
| Tiv tauj tsis kam: 0.5 ~ 10Ω | Rwb thaiv tsev: ≥100MΩ (100V / DC) | |
| Substrate siab tsis kam: 2kV (DC) | Lub sij hawm rov qab: ≤6ms | |
| Lub voj tsis kam: 50 Ω, 150 Ω, 350 Ω, lossis txiav txim siab raws li tus neeg siv xav tau. | Rwb thaiv tsev number case withstand voltage: 100V / DC | |
| mechanical zog | Kev ntseeg tau lub neej:> Ib lab zaug | Kaw tshem tawm: 0.1 ~ 0.4mm (tactile type) 0.4 ~ 1.0mm (tactile type) |
| Ua hauj lwm quab yuam: 15 ~ 750g | Migration ntawm conductive silver paste: ntawm 55 ℃, kub 90%, tom qab 56 teev, nws yog 10m Ω / 50VDC ntawm ob lub xov hlau | |
| Tsis muaj oxidation thiab impurity ntawm cov nyiaj paste kab | Cov kab dav ntawm cov nyiaj paste yog ntau dua lossis sib npaug li 0.3 hli, qhov tsawg kawg nkaus lub caij nyoog yog 0.3 hli, cov kab ntxhib ntawm kab yog tsawg dua 1/3, thiab kab sib txawv yog tsawg dua 1/4. | |
| Tus pin spacing standard 2.54 2.50 1.27 1.25mm | Qhov khoov tsis kam ntawm cov kab tawm yog 80 zaug nrog d = 10 hli steel pas nrig. | |
| Ib puag ncig parameter | Ua haujlwm kub: -20 ℃ ~ + 70 ℃ | Cia kub: -40 ℃ ~ + 85 ℃, 95% ± 5% |
| Atmospheric siab: 86 ~ 106KPa | ||
| Kev luam ntawv index | Cov luam ntawv loj sib txawv yog ± 0.10 hli, cov kab ntawv sab nraud tsis meej, thiab qhov yuam kev yog ± 0.1 hli | Qhov sib txawv ntawm chromatic yog ± 0.11mm / 100mm, thiab cov nyiaj paste kab yog tag nrho los ntawm insulating number case. |
| Tsis muaj tus cwj mem tawg, tsis muaj ntawv sau tsis tiav | Qhov sib txawv xim tsis yog ntau tshaj ob theem | |
| Yuav tsum tsis muaj crease lossis xim tev | Lub qhov rais pob tshab yuav tsum yog pob tshab thiab huv si, nrog cov xim sib xws, tsis muaj khawb, pinholes thiab impurities. | |
Khoom Qhia
