Smd Led Backlight

smd coj backlight

Nqe lus piav qhia:

- 100pcs 3030 teeb hlaws LED LCD TV backlighting teeb hlaws 3030 1W 3V 6V 9V txias dawb
- Emitting xim: txias dawb.
- Qhov hluav taws xob: 3V 6V 9V
- Mini loj: 3 hli x 3 hli me me LED chips.
- Ntim: 100pcs (1 strip).

Specification:

- Lub zog: 5 W.
- Xim rendering Performance index: 90.
- Luminous flux: 1 (lm)
- Tawm voltage: 3 (V)
- Rov qab voltage: 3 (V)
Electrostatic breakthrough voltage (ESD): 3 (V)
- Nominal tam sim no: 1 (A).
- Chip loj: 3030.
- Beam kaum sab xis: 6 (degree).
- Luminous efficiency: 32 (lm / W)
- Xim kam rau ua: 255 (SDCM)
- Thermal tsis kam: 51 (degree / W).
- Qhov siab tshaj plaws tso cai sib txuas kub: 5 (degree).
- Voltage kub coefficient: 1 (mV / degree)
- Xim kub ntau yam: 5 (K).
- Correlates xim kub: 3 V, 6 V, 9 V (K).

Ntau cov duab ntawm smd coj backlight:

Thov nyeem cov ntawv hauv qab no ua ntej siv cov khoom:

1. Tshaj-tam sim no-pov thawj

Cov neeg siv khoom yuav tsum siv cov resistors rau kev tiv thaiv, txwv tsis pub me ntsis voltage hloov yuav ua rau loj tam sim no hloov (Hlawv tawm yuav tshwm sim).

2. Cia

2.1 Tsis txhob qhib lub hnab ntim dej noo ua ntej cov khoom npaj siv.

2.2 Ua ntej qhib lub pob, LEDs yuav tsum khaws cia ntawm 30 degree lossis tsawg dua thiab 90 feem pua ​​RH lossis tsawg dua.

2.3 LEDs yuav tsum tau siv nyob rau hauv ib xyoos.

2.4 Tom qab qhib lub pob, LEDs yuav tsum khaws cia ntawm 30 degree lossis tsawg dua thiab 70 feem pua ​​RH lossis tsawg dua.

2.5 Cov LEDs yuav tsum siv li ntawm 168 teev (7 hnub) tom qab qhib pob.

2.6 Yog hais tias cov khoom adsorbent noo noo (silica gel) tau tshwm sim tam sim ntawd lossis cov LEDs tau dhau lub sijhawm cia, kev kho ci yuav tsum tau ua raws li cov hauv qab no. Ci kev kho mob: 60 ± 5 degree rau 24 teev.

3. Cov yam ntxwv ntawm soldering

3.1 Pb-dawb solder kub profile.

3.2 Reflow soldering yuav tsum tsis txhob ua ntau tshaj ob zaug.

3.3 Thaum soldering, tsis txhob muab kev ntxhov siab rau ntawm LEDs thaum cua sov.

3.4 Tom qab soldering, tsis txhob warp lub Circuit Court board.

4. Cov Hlau Hlau

Txhua lub davhlau ya nyob twg yog mus rau qhov kawg ntawm cov hlau soldering kub tsawg dua 260 degree rau 5 vib nas this hauv ib zaug hauv tsawg dua li qhov muaj peev xwm ntawm 25W. Cia ob vib nas this thiab ntau lub sijhawm, thiab ua soldering ntawm txhua lub davhlau ya nyob twg. Ceev faj vim qhov kev puas tsuaj ntawm cov khoom feem ntau pib thaum lub sij hawm ntawm tes solder.

5. Kev kho

Kev kho yuav tsum tsis txhob ua tom qab cov LEDs tau soldered. Thaum kho tsis tau, yuav tsum siv ob lub taub hau soldering hlau (raws li hauv qab no). Nws yuav tsum tau lees paub ua ntej seb cov yam ntxwv ntawm LEDs yuav los yog yuav tsis puas los ntawm kev kho.

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