LED Lighting

LED Lighting - White

Image	Part Number	Description / PDF	Quantity	Rfq
	LCW W5AM-JZKY-4U9X-0-350-R18-Z OSRAM Opto Semiconductors, Inc.	LED GOLDEN DRAGON WARM WHT 2SMD	0
	GW PSLR31.EM-LPLQ-XX57-1-150-R18-KON OSRAM Opto Semiconductors, Inc.	LED SMD	0
	GW JTLPS1.EM-JMKK-XX58-1-150-R33 OSRAM Opto Semiconductors, Inc.	LED DURIS E 2835 SMD	0
	GW SBLMA1.EM-HQHR-XX58-L1L2-65-R18-LM OSRAM Opto Semiconductors, Inc.	LED DURIS S 2 WHITE SMD	0
	GW PSLRS1.EC-LPLR-5J7K-1 OSRAM Opto Semiconductors, Inc.	LED DURIS S5 4500K 2SMD	0
	GW CSSRM2.PM-NPNR-XX54-1-700-R18 OSRAM Opto Semiconductors, Inc.	LED OSLON SQ NEU WHT 4500K 2SMD	0
	GW P9LR31.PM-PSPT-XX55-1 OSRAM Opto Semiconductors, Inc.	DURIS S 8 4000K	0
	GW CSSRM2.PM-N1N3-A333-1 OSRAM Opto Semiconductors, Inc.	LED OSLON SSL SQUARE 5000K	0
	GW JTLMS1.EM-GVH2-XX51-1-60-R18 OSRAM Opto Semiconductors, Inc.	LED DURIS E COOL WHT 6500K SMD	0
	LUW CQAR-NPNR-HPJR-1-700-R18 OSRAM Opto Semiconductors, Inc.	LED OSLON COOL WHITE 6000K 2SMD	0
	LCW CQ7P.CC-KPKR-5O8Q-1 OSRAM Opto Semiconductors, Inc.	LED OSLON WARM WHITE 3500K 2SMD	0
	GW SBLMA2.EM-HRHS-XX35-L1L2-65-R18-LM OSRAM Opto Semiconductors, Inc.	LED DURIS S 2 WHITE SMD	0
	GW SBLMA1.EM-GTHP-XX58-L1N2-65-R18 OSRAM Opto Semiconductors, Inc.	LED DURIS S2 WARM WHT 2700K	0
	GW CS8PM1.EM-LRLT-A333-1 OSRAM Opto Semiconductors, Inc.	LED OSLON COOL WHITE 5000K SMD	0
	GW JDSMS1.EC-FSFU-5C7E-L1N2-120-R18 OSRAM Opto Semiconductors, Inc.	LED DURIS E5 COOL WHT 6500K 4SMD	0
	GW JSLPS1.EM-LPLR-XX55-1-150-R18 OSRAM Opto Semiconductors, Inc.	LED DURIS S5E WRM WHT 4000K 2SMD	0
	GW JSLPS1.EM-KULQ-XX58-1-150-R18 OSRAM Opto Semiconductors, Inc.	LED DURIS S5E WRM WHT 2700K 2SMD	0
	GW PSLLS1.EC-GTHP-5R8T-1 OSRAM Opto Semiconductors, Inc.	LED DURIS S5 WARM WHT 3000K 2SMD	0
	GW PSLRS1.CC-KSKU-5R8T-1-150-R18-SS1 OSRAM Opto Semiconductors, Inc.	LED DURIS S 5 SMD	0
	GW CS8PM1.CM-KTLP-A737-1-350-R18 OSRAM Opto Semiconductors, Inc.	LED OSLON SSL WHITE 2SMD	0

LED Lighting - White

1. Overview

White Light-Emitting Diodes (LEDs) are semiconductor devices that convert electrical energy into visible white light. They represent a fundamental shift from traditional lighting technologies due to their energy efficiency, longevity, and controllability. Modern white LEDs primarily use blue-emitting chips coated with phosphor materials to produce broad-spectrum white light, enabling precise color tuning and dimming capabilities.

2. Major Types & Functional Classification

Type	Functional Features	Application Examples
Blue Chip + Yellow Phosphor	Cost-effective, CRI 70-90, correlated color temperature (CCT) 2700-6500K	General lighting, residential bulbs
RGB Tri-color	Tunable color output, high CRI (>90), complex driver requirements	Stage lighting, architectural accenting
UV Chip + RGB Phosphor	Enhanced color rendering, reduced blue light hazard	Museum lighting, medical diagnostics
Remote Phosphor	Uniform light distribution, improved thermal management	Commercial downlights, automotive headlamps

3. Structure & Components

Typical white LED construction includes:

Die: Gallium Nitride (GaN) on sapphire substrate emitting blue light (450nm)
Phosphor Layer: Cerium-doped YAG (Y₃Al₅O₁₂) converting blue to yellow wavelengths
Encapsulation: Silicon dioxide lens with secondary optical elements
Thermal Interface: Metal-core PCB (MCPCB) for heat dissipation
Driver Circuit: Constant current source with EMI filtering

4. Key Technical Parameters

Parameter	Typical Range	Importance
Luminous Flux	100-20,000 lm	Determines light output capability
Color Temperature	2700K-6500K	Affects ambiance and visual comfort
Color Rendering Index (CRI)	70-98	Measures color fidelity accuracy
Luminous Efficacy	100-200 lm/W	Energy conversion efficiency metric
Lifespan	25,000-100,000 hrs	Total cost of ownership factor
Forward Voltage	2.8-3.6 V	Driver design specification

5. Application Fields

Residential: Smart bulbs, under-cabinet lighting
Commercial: Retail accent lighting, office panel lights
Industrial: High-bay warehouse fixtures, machine vision systems
Transportation: Automotive headlights, aircraft cabin lighting
Healthcare: Surgical lighting, circadian rhythm regulation

6. Leading Manufacturers & Products

Manufacturer	Key Product Series	Technical Highlights
Signify (Philips)	Luxeon 3535L	180 lm/W efficacy, 90 CRI, automotive grade
OSRAM Opto	Ostar Lighting	Surface-mount package, 2000cd/m luminance
Cree (Wolfspeed)	XHP50.2	High-density emitter, 20A drive current capability
Seoul Semiconductor	WICOP2	Chip-level integration, 0.2W-100W scalability

7. Selection Recommendations

Key considerations:

Optical requirements: Match CRI and CCT to application needs
Thermal management: Select appropriate heatsink and package type
Electrical compatibility: Verify driver specifications and dimming protocols
Form factor: Consider footprint constraints (e.g., 2835, 5630 packages)
Regulatory compliance: Ensure ENERGY STAR, DLC, or UL certification

8. Industry Trends

Emerging developments include:

Micro-LED integration for displays and Li-Fi communication
Quantum dot phosphors expanding color gamut (NTSC >100%)
Smart lighting systems with IoT connectivity (Zigbee, Bluetooth Mesh)
Advanced thermal materials (graphene MCPCBs)
Regulatory shifts toward higher minimum efficacy standards (DOE 2023: 120 lm/W)