Lumex’s New OctoLED Combines Surface Mount Convenience with Through-Hole T-5mm LED Features
Lumex has released a new line of surface-mount devices that represent the first commercial technology to combine the convenience of surface-mount technology (SMT) with the features and capabilities of through-hole, leaded T-5mm epoxy lens LEDs.
The patent-pending OctoLEDs devices are the result of a design breakthrough at a time when most assemblies are moving toward SMT technology. “The OctoLED design is a direct replacement to standard 5 mm through-hole LEDs,” explains Jeff Oliveros, director of Engineering at Lumex. “OctoLEDs are ideal for any situation where there is a need to transition from through-hole to SMT technology, without sacrificing the light emission features of epoxy lenses.”
The OctoLEDs deliver brightness levels of up to 7,000 mcd (dependent on color) – a market first from any conventional SMT LED driven by the common If of 20 mA.
Lumex OctoLEDs can be used anywhere the convenience of surface mounting is required, with the high brightness, color and viewing angle choices of standard T-5 mm LEDs. Such applications include front panel, PCB multi-LED and industrial control or fault indicators. Additional applications include circuit fault and large-scale multi-color light bars, large display edge illumination, dot matrix moving sign displays and other dot matrix arrays where each LED needs to be individually addressable.
OctoLEDs have an off-the-board height of 11-mm (0.43 inches) and occupy a circuit board footprint, which is 6 mm by 6 mm (0.24 inches by 0.24 inches). They are available on standard 24-mm tape for automatic insertion.
Lumex OctoLEDs are available in the full range of colors including red, yellow, green, blue or white. Bi-color as well as RGB versions are also offered. The LEDs are available with a variety of lens finishes, opening the door to different viewing angle options (angle will vary dependent upon lens type).
The new units can withstand soldering temperatures of up to 10 seconds at 255ºC. A gradual temperature rise of 2º per second reaching 150ºC is recommended. Lumex OctoLEDs are RoHS compliant.
Samples of these devices in standard colors are available from stock, with production quantities in eight to 12 weeks. Pricing is dependent on color specified and quantity ordered, and is approximately $0.30 per unit in production quantities.
New DispenseJet DJ-9500 is up to 10 Times Faster than Needle Dispensers in High-Volume Underfill and LED Silicone Applications
Asymtek has released its new DispenseJet DJ-9500 fluid jetting valve for high-speed underfill applications and jetting silicone for LEDs. The DJ-9500’s flexible pneumatic design can jet a wide variety of fluids up to 10 times faster than existing needle type dispensers, even with abrasive fluids. The new design enables compatibility with a wider range of fluid types and opens the process window to allow a robust jetting solution. DJ-9500 users will benefit from improved fluid control, better repeatability, increased flexibility and a lower cost of ownership.
The DJ-9500 controls fluid break-off at the nozzle tip for clean and consistent dots and line patterns on the substrate. Because the DJ-9500’s hardware lasts longer and offers better fluid control, a lower cost of ownership is achieved. The new long-life needle assembly lasts five to 10 times longer than other tested needle assemblies do. Enhanced temperature controls maintain the fluid at a consistent viscosity for high throughput applications.
New LinkSwitch-II Design Ideas from Power Integrations
Power Integrations has released a series of design ideas to help designers of LED driver circuitry benefit from the recently introduced LinkSwitch-II family of AC-DC power conversion ICs. The new design ideas (DI-184, DI-185 and DI-186) demonstrate that LinkSwitch-II ICs are well suited for power supplies and ballasts driving high-brightness LEDs. The devices’ highly accurate constant-current performance and low external component count enable LED ballasts that are simpler to design, lower-cost and more durable than existing converter technology.
LinkSwitch-II features Power Integrations’ advanced primary-side regulation (PSR) technology, which utilizes a transformer winding to sense the output current rather than relying on lossy, expensive secondary-side components to provide feedback and regulate the output. This cuts system component count by up to 30 percent, resulting in simpler, more reliable and lower-cost designs with active and standby energy-efficiency performance.
Power Integrations’ PSR technology ensures highly accurate performance, maintaining output current within a ±10 percent range even if load voltage drop, magnetic component tolerance and temperature conditions vary during manufacture or operation. The constant-current drive enabled by LinkSwitch-II ensures that each LED in a series-connected string provides similar light output. This eliminates the current-sharing problem inherent with parallel-connected diodes, and reduces LED binning costs and optical mixing complexity in lighting fixtures.
Unlike many halogen and CFL lights, LED arrays powered by LinkSwitch-II work with traditional AC-based triac dimmers, as well as more modern remote-controlled dimmers. The high standby efficiency of LinkSwitch-II is particularly important with remote dimming; when it is turned off, LinkSwitch-II absorbs 30 mW of standby power while waiting to re-energize the lights.
The newly released design ideas are suitable for applications of LED lighting less than 5.5 W, such as replacement bulbs for halogen installations, refrigerator interior illumination, landscaping and smaller residential lighting fixtures. DI-184 illustrates a circuit for driving 700 mA of current through strings of two series-connected high brightness white LEDs. The DC side circuit is electrically isolated from the AC side for safety. DI-185 and DI-186 both drive 350 mA of current through strings of three high brightness white LEDs. The former design utilizes an isolated flyback topology; the later features a novel, non-isolated, tapped buck topology that reduces system cost and complexity. Each design includes appropriate EMI suppression components and operates at universal input voltage levels.
“By using LinkSwitch-II, lighting designers are benefiting from a power supply solution that matches the LED’s efficiency, longevity and safety,” said Doug Bailey, vice president of marketing at Power Integrations. “The elimination of lossy secondary-side circuitry enabled by primary-side regulation, in combination with our EcoSmart energy-efficiency technology, results in a highly efficient and cost-effective offline LED driver.”
“LinkSwitch-II has integrated safety features which ensure that the power supply shuts down if the feedback loop is broken due to external component failure,” said Bailey. “The device also monitors its own temperature and shuts itself down to prevent the luminary from overheating in fault conditions or due to poor fixture installation, adding a layer of safety for system designers and end users. LinkSwitch-II also lives up to Power Integrations' reputation for reliability and the 700 V MOSFET inside the LinkSwitch-II provides an increased level of protection against line surges that can cause traditional bulbs to fail.”
All LinkSwitch-II family members are produced in halogen-free, RoHS-compliant packaging.
Future Lighting Solutions Releases LED Reliability Tool
Enables lighting engineers to make design tradeoffs between performance and lifetime.
Future Lighting Solutions has released the LED Reliability Tool (LRT), the first interactive online tool that enables lighting designers to truly predict the lifetime of LEDs in their application as a function of junction temperature and current. All the results from the LRT have a 90 percent confidence interval, which allows users to accurately make design tradeoff decisions such as increasing drive current or decreasing the size of the thermal management solution while reaching a target LED lifetime.
“As new standards are implemented around the world for solid-state lighting solutions, understanding the behavior of the LEDs over time in a wide range of environments will be critical. LED datasheets generally only provide a single forward current or a single junction temperature data point when publishing lifetime information,” said Patrick Durand, Worldwide Applications manager for Future Lighting Solutions. “The LRT gives designers the flexibility to select from a wide range of LED currents, junction temperatures and target lifetimes to instantly evaluate the impact of modifying these variables on the reliability of the lighting system.”
The LRT can be used in combination with the existing Usable Light Tool (ULT). By leveraging both online systems, designers can maximize light output of the LED system while reaching both luminous efficacy and lifetime targets.
The LRT is available for free at www.futurelightingsolutions.com/LRT, where visitors can use their existing Usable Light Tool (www.futurelightingsolutions.com/ULT) accounts or register to access the tool.
Current Is the Driving Force 
Constant current is required to drive LEDs reliably. Lighting manufacturers are very often experts in light sources but have little experience with electronic components. To bridge this gap, Recom offers a complete solution with the RCD-24-x.xx series.
This family offers current outputs of 300, 350, 500, 600 and 700 mA, which can also be adjusted using the analog dim-function. Simultaneously, the PWM –dim-function that operates at a frequency range of 20 to 200 Hz and the proving linear dimming can also be adjusted from 0 to 100 percent. The buck converters feature an input range of 4.5 to 36 volts. There is also a standby function for battery operated applications. The rated accuracy of the output current is ±2 percent and variations due to the input voltage range are ±1 percent.
The housing measures 22.1 by 12.6 by 8.5 mm and is made of UL94-V0 material. The drivers are available with either 6 pins or with four 100-mm long leads. Depending on volume requirements, it is also possible to provide customer specific versions. Operating temperature range is from -40 to 71°C (700 mA) or 85°C (350 mA) without derating.
The MTBF of the 700 mA version (worst case) is of 516,000 hours at an environmental temperature of 71°C. EMC-compatibility with EN 55022 Class B is provided by the addition of two components. By using another 4 ceramic capacitors, the drivers are compatible with EN 61000 -4-2, -3, -4 and -6.
The RCD-24-x.xx series LED-drivers are ready for use and provide a complete solution where the user does not need to deal with the compatibility problems of specific standards. Time-to-market is reduced to a bare minimum when compared with traditional IC solutions.
Pricing for the RCD-24-0.35 OEM quantities start at $6.65 at 1,000 pieces.
Marktech LED Lighting Products, Introduces Energy Efficient Modular LED Lighting Versatile Enough for Any Application
Marktech LED Lighting Products, a supplier of LEDs and LED lighting products, brings practical LED lighting solutions to consumers with the introduction of the ExtendLite LED Lights. This addition to the Marktech family of products offers the same energy efficiency benefits as their other LED lighting products, but offers more versatility in their application, allowing for increased creativity and easy incorporation into existing design schemes.
“Our focus is on LED lighting products and fixtures that can directly replace existing incandescent, fluorescent and halogen bulbs in any household or commercial application,” says Mark Campito, CEO of Marktech LED Lighting Products. “The ExtendLite LED Lights provide consumers with more versatility, and make it easier to do so.”
The LED ExtendLites have a quick connect system that is easily joined together to produce a desired fixture length for a variety of LED lighting projects. In addition to being versatile, the ExtendLites come with a number of mounting options, including magnetic strips, glass shelf clips and wood mounting brackets, to address all of the possible applications in which these lights will be used. For consumers looking for a white light solution, the ExtendLites are available in 6,500 K Pure White, 2,800 K Warm White, and Full Spectrum White, which offers a CRI of 94, suitable for retail displays. Other colors include amber, blue, green, red and yellow, and all colors feature the same energy saving benefits synonymous with LED lighting.
“LEDs can last up to 100,000 hours [approximately 11 years] and operate more than 20 times longer than the equivalent incandescent lamp,” said Campito. “Savings from reduced maintenance costs and downtime quickly return the capital investment expenditure, and LED lamps require 80 percent to 90 percent less operating power than their incandescent equivalents, making them as friendly to the environment as they are to the operating budget.”
DDP's Wide-Angle LED Retrofit Lamp Series Provides Bright and Even Illumination
DDP has developed a series of wide-angle, bayonet-based LED retrofit lamps that provide bright and even illumination in backlighting applications. Part of DDP's PowerLine LED Series, the BA9-style T3-1/4 LED lamp is well suited for retrofitting and replacing incandescent bulbs used to backlight annunciators in industrial plants and power utilities.
DDP's BA9-style T3-1/4 LED lamp designs incorporate up to four 120° surface mount LEDs to ensure wide and even illumination of the annunciator lens. With an average life span upwards of 100,000 hours, DDP LED lamps provide a predictable operating life and energy savings of 50 percent to 80 percent, significantly improving maintenance costs and downtime.
"Annunciators are traditionally backlit by inefficient incandescent bulbs that illuminate lenses indicating alarms and status of critical processes," said Tony Toniolo, DDP president. "The PowerLine Annunciator LED Series eliminates many of the inherent shortcomings of incandescent bulbs such as filament failures, frequent maintenance and excessive heat."
DDP's BA9-style T3-1/4 LED lamp is offered in one-LED and four-LED configurations. Available in five colors: red, amber, green, blue, and white, the BA9-style T3-1/4 LED lamp is offered in a variety of voltages from 12VDC to 120VAC.
Typical pricing of the BA9-style T3-1/4 LED lamp starts at $8.10 in quantities of 100 with a lead-time of 4 weeks.
GlacialLight Launches LED-BR40 Light Bulb

GlacialTech, Inc. has released the BR40 LED light – the LED-BR40 Globes come in three models that range in brightness from low, to medium to high. The LED BR40 bulbs are designed to replace the equivalent 80 W BR40 globes and lamps available in markets today. Using lower wattage compared with the original product, 840Lux for the high brightness globe at a distance of 1 meter. The innovative product incorporates the same structure and style of traditional BR40 bulbs but delivers a brighter performance per watt, with less heat radiation. The LED BR40 Globe can be used for general everyday use and incorporates all the latest luminary technology garnered from GlacialTech’s unique resources; combining years of experience in designing cooling systems as well as all manner of consumer electronic device power supplies.
GlacialTech LED-BR40 uses super high-brightness LED emitters that consume 18.6 watts in the high brightness bulb. As a result, the LED-BR40 luminary is much cooler within a range of –20°C to 50°C with a 112 percent more advanced conversion of energy to light. The LED-BR40 globe, using a fraction of the power, is a safe, environmentally friendly solution, which reduces global emissions through reduced power consumption. The efficient cooling structure of the heatsink is optimally designed to keep the >50,000 hours longevity of the device intact, while maintaining full brightness for longer.
Accepting an Input voltage of 110 V (AC), an Input current to 0.3 A for high brightness LED bulb. The diameter of 127 mm, a length of 165 mm, and a weight of 0.3 kgs mean the LED-BR40 lamp can replace any traditional BR40 bulb product.
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