3mm blue led Flat Top

3mm LED diode

BL-L344

3mm Flat Top LEDs | super bright LED3mm blue led Flat Top
Brand BETLUX
Part No BL-L344
Dimension 3.00*3.80*6.10 mm
Weight 0.1700g
Package 1000
Datasheet pdf
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Feature Description

;3.0mm Cylindrical LED lamp
;Choice of various viewing angles.
;Diffused, Transparent and Water clear lens are available.
;IC compatible /Low current capability.
RoHs Compliance

RoHs Compliance, Pb-free Anti-Static Attention

Electrical-optical characteristics: (Ta=25C) (Test Condition: IF=20mA)

(V)(V)(mcd)
BL-L344LRCSuper Bright Red6601.852.2150100
BL-L344SRCHigh Bright Red6601.852.280100
BL-L344URCUltra Bright Red6601.952.2350100
BL-L344UECHigh Bright Orange6302.12.5450100
BL-L344UYCHigh Bright Yellow5902.12.5450100
BL-L344UGCHigh Bright Green5742.22.5110100
BL-L344PGCSuper Pure Green5253.04.21100100
BL-L344BGCSuper Bluish Green5053.04.2900100
BL-L344UBCSuper Bright Blue4702.74.21100100
BL-L344BCBlue4303.04.2900100
BL-L344UWCWhite-2.74.21500100


Package configuration & Internal circuit diagram
3mm Flat Top LEDs | super bright LED dimensional drawing

Absolute maximum ratings

Lens Color:

Code D T C W E  
Meaning color Diffused Color Tinted Water Clear Water Diffused Orange diffused  

Absolute maximum ratings (Ta=25°C)

Parameter SR LR UR UE UY UG PG BG B UB UV W Unit
Forward Current I F 25 25 25 30 30 30 30 30 30 30 30 30 mA
Power Dissipation P d 60 60 60 65 65 75 110 110 120 120 120 120 mW
Reverse Voltage V R 5 5 5 5 5 5 5 5 5 5 5 5 V
Peak Forward Current I PF (Duty 1/10 @1KHZ) 150 150 150 150 150 150 150 100 100 100 100 100 mA
Operation Temperature T OPR -40 to +80 °C
Storage Temperature T STG -40 to +85 °C
Lead Soldering Temperature T SOL   Max.260+-5°C for 3 sec Max. (1.6mm from the base of the epoxy bulb) °C

Part No system
LEDs, Light Emitting diodes, which include various small kinds, such as 3mm, 5mm, 8mm, 10mm; round type, rectangular type square type, tower type, Oval led, elliptical, flat top; SMDs, high power led, piranha LEDs

Part No of  LED diode

Related information

Applied for:
auto lampcameradome lightrgb screentraffic light

 

The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, 

communication equipment and household applications). Consult Betlux's Sales in advance for information on 

applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs

 may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical 

and life support systems and safety devices).

CAUTIONS for Through-Hole LED Lamps

1. Application
The LEDs described here are intended to be used for ordinary electronic equipment (such as office equipment, communication equipment and household applications). Consult Betlux's Sales in advance for information on applications in which exceptional reliability is required, particularly when the failure or malfunction of the LEDs may directly jeopardize life or health (such as in aviation, transportation, traffic control equipment, medical and life support systems and safety devices).

2. Storage
The storage ambient for the LEDs should not exceed 30℃ temperature or 70% relative humidity. It is
recommended that LEDs out of their original packaging are used within three months
For extended storage out of their original packaging, it is recommended that the LEDs be stored in a sealed
container with appropriate desiccant or in a desiccator with nitrogen ambient.

3. Cleaning
Use alcohol-based cleaning solvents such as isopropyl alcohol to clean the LED if necessary

4. Lead Forming & Assembly
During lead forming, the leads should be bent at a point at least 3mm from the base of LED lens. Do not use
the base of the leadframe as a fulcrum during forming.
Lead forming must be done before soldering, at normal temperature.
During assembly on PCB, use minimum clinch force possible to avoid excessive mechanical stress.

led diode formingassembly notice of led diode

Soldering

When soldering, leave a minimum of 2mm clearance from the base of the base of the lens to the soldering point. Dipping the lens into the solder must be avoided.

Do not apply any external stress to the lead frame during soldering while the LED is at high temperature.

Recommended soldering conditions:

Wave Soldering Soldering Iron
Pre-Heat 100°C Max. Temperature 300°C Max.
Pre-Heat Time 60sec Max.
SolderWave 260°C Max. Soldering Time 3sec Max.(one time only)
Soldering Time 5sec Max.

Note: Excessive soldering temperature and/or time might result in deformation of the LED lens or failure of the LED

ESD (Electrostatic Discharge)

Static Electricity or power surge will damage the LED.

Suggestions to prevent ESD damage:

 Use a conductive wrist band or anti-electrostatic glove when handling these LEDs

 All devices, equipment, and machinery must be properly grounded

 Work tables, storage racks, etc. should be properly grounded

 Use ion blower to neutralize the static charge which might have built up on surface of the LED's plastic 

lens as a result of friction between LEDs during storage and handling

ESD-damaged LEDs will exhibit abnormal characteristics such as high reverse leakage current, low

 forward voltage, or “light off” at low currents. To verify for ESD damage, check for “light on” and Vf 

of the suspect LEDs at low currents.

The Vf of “good” LEDs should be>2.0V@0.1mA for InGaN product and >1.4V@0.1mA for AlInGaP product

Drive Method

An LED is a current-operated device. In order to ensure intensity uniformity on multiple LEDs connected in 

parallel in an application, it is recommended that a current limiting resistor be incorporated in the drive circuit,

 in series with each LED as shown in Circuit A below.

drive notice - led diode

Power source for LEDs (5v/12v/24v AC/DC converter, DC/DC converter, waterproof/non-waterproof)

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