P-LCC-2 Top View LED Datasheet - Bright Red - 20mA - 120mW - Chinese Version

1. Mchanganuo wa Bidhaa

This document details the specifications of a surface-mount top-view LED in a P-LCC-2 package. The device features a white package body and a colorless transparent window, offering a wide viewing angle, making it highly suitable for indicator applications. Its design is compatible with modern assembly processes, including vapor phase reflow, infrared reflow, and wave soldering, and is suitable for automatic placement equipment. The product is supplied on 8mm carrier tape reels and complies with lead-free and RoHS requirements.

The primary application direction for this series of LEDs is as optical indicators. Their wide viewing angle and optimized light coupling achieved through internal reflector design make them particularly suitable for use with light pipes. The low forward current requirement also makes them an excellent choice for battery-powered or power-sensitive portable electronic devices.

2. Vigezo vya Kiufundi

2.1 Absolute Maximum Ratings

The device must not be operated beyond these limits, as doing so may cause permanent damage.

• Voltage ya nyuma (V_R):5 V
• Mkondo endelevu wa mbele (I_F):50 mA
• Peak Forward Current (I_FP):100 mA (Duty Cycle 1/10, 1 kHz)
• Power Consumption (P_d):120 mW
• Electrostatic Discharge (ESD) HBM:2000 V
• Operating Temperature (T_opr):-40°C to +85°C
• Storage Temperature (T_stg):-40°C to +90°C
• Welding temperature (T_sol):Reflow soldering: 260°C for 10 seconds; Hand soldering: 350°C for 3 seconds.

2.2 Electro-Optical Characteristics (T_a= 25°C)

Typical performance parameters measured under standard test conditions.

• Luminous intensity (I_v):360 - 900 mcd (I_F= 20mA)
• Viewing angle (2θ_1/2):120° (I_F= 20mA)
• Peak wavelength (λ_p):632 nm (I_F= 20mA)
• Wavelength kuu (λ_d):621 - 631 nm (I_F= 20mA)
• Spectral bandwidth (Δλ):20 nm (I_F= 20mA)
• Forward Voltage (V_F):1.75 - 2.35 V (I_F= 20mA)
• Reverse Current (I_R):Max 10 μA (V_R= 5V)

Remarks:The tolerances are specified as follows: luminous intensity ±11%, dominant wavelength ±1nm, forward voltage ±0.1V.

3. Binning System

Ili kuhakikisha uthabiti wa rangi na mwangaza katika uzalishaji, vifaa vinagawanywa katika viwango tofauti kulingana na vigezo muhimu.

3.1 Luminous Intensity Binning

Viwango vinafafanuliwa na msimbo (k.m. T2, U1), vinavyolingana na I_FThamani ya chini na ya juu zaidi ya mwangaza wakati =20mA.

• T2:360 - 450 mcd
• U1:450 - 565 mcd
• U2:565 - 715 mcd
• V1:715 - 900 mcd

3.2 Dominant Wavelength Binning

Wavelength grouping is used to control the subjective color (hue) of red light.

• Group F, code FF1:621 - 626 nm
• Kundi F, Msimbo FF2:626 - 631 nm

3.3 Forward Voltage Binning

Forward voltage binning facilitates circuit design for current regulation.

• Group B, Code 0:1.75 - 1.95 V
• Kikundi B, Msimbo 1:1.95 - 2.15 V
• Kikundi B, Msimbo 2:2.15 - 2.35 V

4. Performance Curve Analysis

Data ya michoro inafunua tabia ya kifaa chini ya hali tofauti.

4.1 Uhusiano wa Ukubwa wa Mwanga wa Jamaa na Umeme wa Mbele

Mkunjo huu unaonyesha jinsi pato la mwanga linavyoongezeka kadri umeme wa mwelekeo unavyoongezeka. Kwa kawaida haufuati mstari wa moja kwa moja, na ufanisi unaweza kupungua kwa viwango vya juu sana vya umeme. Mhandisi anapaswa kuchagua sehemu ya kufanya kazi inayolingana ukali, matumizi ya nguvu, na maisha ya kifaa.

4.2 Uhusiano wa Nguvu ya Mwanga na Joto la Mazingira

Mkunjo huu unaonyesha sifa za kupungua kwa mwanga kwa joto. Kwa kawaida, nguvu ya mwanga hupungua kadiri joto la mazingira linavyoongezeka. Kwa matumizi katika mazingira yenye joto la juu, lazima izingatiwe athari hii ya kupungua ili kuhakikisha mwangaza wa kutosha.

4.3 Uhusiano wa Sasa ya Mbele na Voltage ya Mbele (I-V Curve)

I-V curve ni sifa ya kawaida ya diode. Voltage ya mbele ina mgawo chanya wa joto, ambayo inamaanisha kuwa kwa mkondo uliopewa, itapungua kidogo kadri joto linavyoongezeka.

4.4 Usambazaji wa Wigo

Mchoro wa wigo unathibitisha umonokromia wa mwanga, na kilele chake kikiwa katikati ya urefu wa wimbi wa 632 nm, katika eneo la nyekundu angavu la wigo unaoonekana. Upana mwembamba unaonyesha uchafu mzuri wa rangi.

4.5 Mchoro wa Mfumo wa Mionzi

Mchoro wa kuratibu polar unaonyesha pembe ya maono ya 120°, ukionyesha sifa za utoaji zinazokaribia Lambertian. Hii inathibitisha kifaa hiki kinafaa kwa matumizi yanayohitaji kuonekana kwa pembe pana.

4.6 Mkunjo wa Kupunguza Mkondo wa Mbele

This graph defines the maximum allowable continuous forward current as a function of ambient temperature. To prevent overheating, the current must be reduced when the operating temperature exceeds a specific value (typically starting around 60-70°C).

5. Mechanical and Packaging Information

5.1 Package Dimensions

The P-LCC-2 package has a specific mechanical outline and pad layout. Key dimensions include overall length, width, height, and the location of the cathode identification mark. All unspecified tolerances are ±0.1 mm. Designers must refer to the detailed dimensioning drawing to create the PCB footprint.

5.2 Polarity Identification

The cathode is typically identified by visual markers on the package, such as a notch, dot, or beveled corner. Correct orientation is crucial for circuit operation.

6. Soldering and Assembly Guide

6.1 Mkunjo wa Joto wa Reflow Soldering

Kifaa hiki kimepimwa kwa kiwango cha juu cha joto cha reflow soldering cha 260°C, kwa muda wa sekunde 10 kwa upeo. Inafaa kwa mkunjo wa kawaida wa joto wa IPC/JEDEC J-STD-020 kwa usanikishaji usio na risasi. Ni lazima kudhibiti kwa usahihi muda ulio juu ya mstari wa kioevu ili kuzuia uharibifu wa joto kwa kifuniko cha epoxy.

6.2 Manual Soldering

If manual soldering is required, the temperature of the soldering iron tip should not exceed 350°C, and the contact time for each pin should be limited to 3 seconds or less.

6.3 Moisture Sensitivity and Storage

The product is shipped in moisture barrier packaging (aluminum foil bag with desiccant). Once the sealed bag is opened, components should be used within the specified time frame (not explicitly stated, but standard practice is 168 hours at ≤30°C/60%RH for Level 3 devices) or baked according to standard procedures before reflow soldering to prevent "popcorn" effect.

7. Ufungaji na Taarifa za Kuagiza

7.1 Vipimo vya Ukanda wa Kubeba na Reel

The device is supplied in 8mm tape format. The standard reel quantity is 2000 pieces. Other minimum packaging quantities include 250, 500, and 1000 pieces per reel. Detailed tape and reel dimensions are provided to facilitate the setup of automated handling equipment.

7.2 Label Description

Lebo ya reel ina misimbo mingi:

• CAT:Inalingana na msimbo wa kiwango cha nguvu ya mwanga (kwa mfano V1).
• HUE:Code ya kikundi cha urefu wa mawimbi makuu yanayolingana (mfano FF1).
• REF:Inayolingana na msimbo wa kikundi cha voltage chanya (mfano 1).

Misimbo hii inaruhusu kufuatilia na kuchagua kiwango maalum cha utendaji.

8. Mapendekezo ya Utumizi

8.1 Mandhari ya Kawaida ya Utumizi

• Communication Equipment:Status indicator lights in telephones, fax machines, routers, and backlights for buttons or displays.
• Consumer Electronics:Taa za Kiashiria cha Nguvu, Ukimya au Hali ya Muunganisho katika Vifaa vya Sauti na Video, Kompyuta na Vifaa vya Nje.
• Udhibiti wa Viwanda:Taa za Kiashiria kwenye Paneli zinazotumika kwa Hali ya Mashine, Kengele ya Hitilafu au Hali ya Uendeshaji.
• Application ya Miongozo ya Mwanga:Mtazamo wake mpana na sifa zake bora za kuunganisha, hufanya iwe bora kutumika na miongozo ya mwanga iliyoinjizwa, kuhamisha mwanga kutoka PCB hadi paneli ya mbele au skrini.
• Onyo la Jumla:Maombi yoyote yanayohitaji kiashiria cha kuona kilichoangavu, cha kuaminika na chenye matumizi ya nguvu ya chini.

8.2 Design Considerations

• Current limit:Hakikisha unatumia upinzani wa mfululizo au kichocheo cha mkondo thabiti kupunguza mkondo wa mbele kwa thamani salama, kawaida 20mA kwenye mwangaza wa kawaida, usizidi kiwango cha juu kabisa cha 50mA.
• Udhibiti wa joto:Katika hali ya joto kali ya mazingira au unapotumia mkondo wa juu, hakikisha una eneo la kutosha la shaba kwenye PCB au hatua zingine za kupoza joto ili kuweka joto la kiungo ndani ya mipaka, tazama mkunjo wa kupunguza mzigo.
• Ulinzi wa ESD:Ingawa kimepimwa kwa 2000V HBM, bado zinapaswa kuzingwa hatua za kawaida za kinga ya ESD wakati wa usanikishaji na usindikaji.
• Usanifu wa Kioo:Kwa matumizi ya mfereji wa mwanga, mfumo wa mionzi wa LED na muundo wa sehemu ya kuingilia ya mfereji yanapaswa kuzingatiwa ili kuongeza ufanisi wa kuunganisha.

9. Reliability and Quality Assurance

Bidhaa imepitia mfululizo wa majaribio kamili ya kuaminika, kwa kiwango cha uaminifu cha 90% na LTPD ya 10%. Miradi ya majaribio na masharti ni pamoja na:

• Uvumilivu wa Uwekaji tena wa Solder:260°C ±5°C, minimum 10 seconds.
• Temperature Cycling:300 cycles between -40°C and +100°C.
• Thermal Shock:300 cycles between -10°C and +100°C.
• High and Low Temperature Storage:Stored for 1000 hours at +100°C and -40°C respectively.
• DC Operating Life:Operated for 1000 hours under conditions of 20mA, 25°C.
• High Temperature High Humidity (85/85):Operate for 1000 hours under conditions of 85°C and 85% relative humidity.

These tests verify the robustness of the device under typical environmental and operational stresses encountered in electronic products.

10. Ulinganishi wa Kiteknolojia na Tofauti

The P-LCC-2 LED offers differentiated advantages in several key areas for indicator light applications. Compared to simpler chip LEDs, the molded P-LCC package provides superior mechanical protection, easier handling for pick-and-place machines, and a more consistent optical interface. Its wide 120-degree viewing angle is a significant advantage over narrow-viewing-angle LEDs when off-axis visibility is required. The use of AlGaInP semiconductor material for the red chip offers higher luminous efficiency and better temperature stability compared to older technologies like GaAsP, resulting in brighter and more consistent red light output. A comprehensive binning system for intensity, wavelength, and voltage enables more precise color and brightness matching in the final product, which is crucial for multi-indicator panels or aesthetic applications.

11. Maswali Yanayoulizwa Mara kwa Mara (FAQ)

11.1 Ni mkondo gani wa kazi unaopendekezwa?

Hali za kawaida za majaribio na mkondo wa kawaida wa matumizi ni 20mA. Hii inatoa usawa mzuri wa mwangaza na ufanisi. Kifaa kinaweza kufanya kazi kwenye thamani yake kamili ya juu zaidi ya 50mA, lakini hii itazalisha joto zaidi na kupunguza uimara wa muda mrefu, isipokuwa usimamizi unaofaa wa joto umetekelezwa.

11.2 Je, msimbo wa kiwango kwenye lebo unasomwaje?

The CAT code (e.g., V1) indicates the luminous intensity range. The HUE code (e.g., FF1) indicates the dominant wavelength range, controlling the specific hue of red. The REF code (e.g., 1) indicates the forward voltage range. To ensure consistent performance of multiple devices in an assembly, components with the same binning codes should be specified or required.

11.3 Je, LED hii inaweza kuendeshwa bila kutumia kipingamkondo?

No.LED ni kifaa kinachodhibitiwa na mkondo. Kuunganisha moja kwa moja kwenye chanzo cha voltage kutasababisha mkondo mkubwa kupita, ambao unaweza kuharibu LED mara moja. Ni lazima kutumia upinzani wa mfululizo au mzunguko wa mkondo wa kudumu wenye nguvu.

11.4 Je, LED hii inafaa kwa matumizi ya nje?

Upeo wa joto la uendeshaji umepanuliwa hadi -40°C hadi +85°C, ukijumuisha hali nyingi za nje. Hata hivyo, haijabainishwa kuwa inaweza kukabiliwa moja kwa moja kwa muda mrefu na mionzi ya ultraviolet ya jua na hali ya hewa (mvua, unyevu). Kwa matumizi ya nje, LED inapaswa kuwekwa nyuma ya lenzi ya ulinzi au kifuniko, na sehemu nzima inapaswa kufungwa ipasavyo na kuwa na kiwango kinachofaa cha mazingira cha kukabiliwa.

12. Uchambuzi wa Kesi ya Uundaji Halisi

Tukio:Design a status indicator panel for a network switch with 24 ports, each requiring a red link/activity LED. The LEDs must have wide viewing angle visibility, consistent color and brightness, and the design must be energy efficient.

Implementation Plan:

1. Component Selection:P-LCC-2 LED nyekundu angavu hii imechaguliwa kwa sababu ina pembe ya kuona ya upana wa digrii 120, mkondo wa chini wa kuendesha wa 20mA, na inatoa mgawanyo mkali wa utendaji.
2. Ubunifu wa Sakiti:Kila LED inaendeshwa na pini ya GPIO ya microcontroller kupitia upinzani wa mfululizo wa 100Ω (kulingana na usambazaji wa umeme wa 3.3V na kawaida ya V_FCalculated for 2.0V, the current is approximately 13mA. This is below the 20mA test point but provides sufficient brightness while saving power.
3. PCB Layout:LEDs are placed in a grid pattern. The PCB footprint recommended in the datasheet was used. A small keep-out area is maintained beneath the LED to prevent solder wicking.
4. Usanifu wa Kioo:A custom injection-molded light guide array was designed to direct light from each SMD LED on the PCB to individual transparent windows on the front panel. The wide viewing angle of the LEDs ensures efficient coupling into the light guides.
5. Binning:To ensure uniform appearance, a single luminous intensity bin (e.g., U2) and a single dominant wavelength bin (e.g., FF1) are specified for the LEDs in the purchase order.
6. Thermal Considerations:Kwa kuwa LED 24 zinaweza kuwaka wakati mmoja, matumizi ya jumla ya nguvu ni ya chini (takriban 0.75W). Hakuna hitaji la usimamizi maalum wa joto kwenye PCB.

Kesi hii inaonyesha wazi jinsi vipimo vya LED vinavyoelekeza moja kwa moja na kuchangia muundo wenye mafanikio na unaoweza kutengenezwa.

13. Kanuni ya Uendeshaji

LED hii ni kifaa cha fotoni cha semiconductor. Kiini chake ni chipi iliyotengenezwa kwa safu ya epitaxial ya alumini-gali-indiamu-fosforasi (AlGaInP) iliyokua kwenye kioo cha msingi. Unapotumia voltage chanya inayozidi kizingiti cha kuwasha diode (takriban 1.8V), elektroni na mashimo huingizwa kuvuka makutano ya p-n. Vibeba malipo hivi hurejeshana ndani ya eneo lenye shughuli la semiconductor, huku wakitolea nishati kwa njia ya fotoni. Muundo maalum wa aloi ya AlGaInP huamua nishati ya pengo la bendi, na hivyo kuamua moja kwa moja urefu wa wimbi la mwanga unaotolewa (rangi) — katika mfano huu, nyekundu mkali wa takriban 632 nm. Mwanga unaotokana huondolewa kupitia uso wa chipi, kisha umbo na uelekezwe na kioakisi cha ndani cha kifurushi cha P-LCC na lenzi wazi ya epoksi ili kufikia pembe ya mtazamo mpana inayohitajika.

14. Mwelekeo wa Teknolojia

Soko la LED za kiashiria linaendelea kukua. Mwelekeo wa jumla unajumuisha kutafuta ufanisi wa juu wa kutolea mwanga (kutolea mwanga zaidi kwa kila wati ya umeme inayoingia), na hivyo kufanya viashiria vyangavu zaidi kwa mkondo wa chini katika vifaa vya mkononi na IoT, na kuboresha ufanisi wa nishati. Udogo pia ni mwelekeo mmoja, kwa matumizi yenye nafasi ndogo, vifurushi vidogo kuliko P-LCC-2 vinakuwa kawaida. Uthabiti ulioimarishwa chini ya mikondo ya juu ya joto ya reflow ni eneo lingine la umakini, ili kukabiliana na michakato ya kisasa ya usanikishaji wa PCB. Zaidi ya hayo, kuunganisha vifaa vya udhibiti vya elektroniki (kama vile madereva ya mkondo wa mara kwa mara hata saketi rahisi za mantiki) moja kwa moja kwenye kifurushi cha LED ("Smart LED") ni mwelekeo unaokua, ambao unarahisisha muundo wa saketi kwa mtumiaji wa mwisho. Ingawa kifaa hiki maalum kinawakilisha teknolojia imara na ya kuaminika, maendeleo haya yanayoendelea katika nyenzo, ufunga, na ushirikiano yanaunda hali ya baadaye ya vipengele vya kiashiria.