HLMPM550 Optoelectronics

Current - Test:	10mA
Base Part Number:	HLMPM550
Height (Max):	6.24mm
Size / Dimension:	--
Supplier Device Package:	4mm FLAT TOP
Package / Case:	Radial
Features:	--
Wavelength - Peak:	565nm
Wavelength - Dominant:	--
Mounting Type:	Through Hole
Viewing Angle:	80°
Series:	--
Voltage - Forward (Vf) (Typ):	2.3V
Lens Style/Size:	Round with Flat Top, 3.99mm
Millicandela Rating:	10mcd
Lens Transparency:	--
Lens Color:	--
Color:	Green
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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HLMPM550 Application Field And Working PrincipleLED indication, typically referred to as discrete indication, is an essential and commonsense way to deliver sophisticated data to engineering staff and also to the customers. Discrete indication utilizing LEDs offers a visually pleasing and easily interpretable method for viewing small signals. HLMPM550 is a small indicator light that combines excellent visibility, high intensity, wide viewing angle and a low forward voltage drop for excellent brightness and compatibility in long cable runs.The HLMPM550 is useful for a wide range of applications. In automotive, it is commonly employed in vehicle interior lighting systems such as indicator lamps, display back-lighting, courtesy lights and switch illumination. This robust and reliable indicator light is also ideal for use in industrial, commercial and residential lighting applications, as well as in audio, communications and instrumentation equipment.The working mechanism of the HLMPM550 LED is based on the movement of electrons. An LED is a semiconductor device and works when electricity is passed through it. When an alternating current passes through the crystal lattice of an LED, electrons are moved from the n-side of the semiconductor material to the p-side (and vice versa). The movement of the electrons across this junction gap releases energy in the form of photons (i.e., light). This light is visible because of its unique color, hence creating the indication effect.To take advantage of the low forward voltage drop of the HLMPM550, a resistor needs to be contracted in series. If a higher forward voltage is anticipated higher than the manufacturer’s range, current limiting is required by adding a series resistor. The resistor has to be chosen so that the current in the circuit is below the condition which is stated in the operating temperature range of the LED. According to the manufacturer, the optodesign of the HLMPM550 comprises an efficient heat sink to spread the absorbed energy and maintain optimal and constant operation of the LED.The design and construction of the HLMPM550 offers several key performance benefits over other status indicator solutions. The package is IP67 waterproof, and its area of viewing angle is extremely wide so as to maximize visibility. Moreover, the combination of low forward voltage drop, anti-reflective construction and wide viewing angle significantly contributes to the high-intensity output of this product. The major performance specifications of the HLM PM550 that should be taken into consideration when making purchasing decisions include its voltage rating, power dissipation, typical forward voltage and wavelength. Its typical forward voltage should be between 2V-3.6V, power dissipation should be 1W, and its typical wavelength is between 625 to 630 nm.Overall, the HLMPM550 discrete LED indicator light is a compact and reliable solution for high-intensity lighting needs. It is suitable for both interior and exterior lighting applications and is IP67 waterproof. Its low forward voltage and wide viewing angle enhance the visibility of its light, while its efficient heat sink helps maintain optimal performance. Its performance specifications should be considered when making purchasing decisions to ensure the product is tailored to meet individual needs.

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