SMTL2-OC Optoelectronics

Voltage - Forward (Vf) (Typ):	1.9V
Height (Max):	2.10mm
Size / Dimension:	3.20mm L x 2.80mm W
Supplier Device Package:	2-PLCC
Package / Case:	2-PLCC
Features:	--
Wavelength - Peak:	--
Wavelength - Dominant:	605nm
Mounting Type:	Surface Mount
Viewing Angle:	120°
Current - Test:	20mA
Series:	--
Lens Style/Size:	Round with Flat Top
Millicandela Rating:	270mcd
Lens Transparency:	Clear
Lens Color:	Colorless
Color:	Orange
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Introduction to LED Indication-DiscreteLight-emitting diode (LED) indication is one of the most common, cost-effective and reliable methods of providing a visual indication to the user of an occurrence during the operation of a device. LED indication is typically divided into discrete and continuous categories:Discrete LEDs provide an indication when a device is at operating conditions, such as on or off, or when a certain threshold or limit of an operating parameter has been exceeded.LED Indication-DiscreteSMTL2-OC is a low cost, high performance optocoupler specifically targeted for discrete LED indication applications. This optocoupler is specifically designed with two output channels to drive both red and green discrete LEDs. It is one of the few devices that contains both active and passive optical components for improved reliability and cost savings. The most common type of discrete LED applications include circuit protection, warning lights, safety lighting, and autopilot systems. SMTL2-OC is the perfect choice for these applications as its active and passive components ensure robust performance, even in harsh industrial and automotive environments.SMTL2-OC’s Working PrincipleSMTL2-OC is an optocoupler that houses a set of highly controller optical components designed to convert electrical signals into optical signals. The optocoupler contains five elements: an LED, a photodiode, a transistor, a driver circuit, and a resistor.The LED pins are connected to the input of the optocoupler, which receives signals from the outside environment and actuates the LED when current flows through it. After the LED is actuated, it causes light to be emitted, which is then detected by the photodiode. The photodiode then converts the light into electrical signals, which are then further amplified by the transistor. The amplified signals are then used to drive the output, which consists of a driver circuit and a resistor. Finally, the driver circuit and the resistor drive the two output channels, controlling both the red and green discrete LEDs.ConclusionSMTL2-OC is a low cost, high performance optocoupler specifically targeted for discrete LED indication applications. It’s active and passive components make it perfect for robust performance, even in harsh industrial and automotive environments. Its working principle consists of a set of excellently controller optical components that convert electrical signals into optical signals, which in turn drives the two output channels controlling both the red and green discrete LEDs.

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