Thursday, April 16, 2015

LED Lighting Devices from Nichia

Japanese chemical engineering and manufacturing company, headquartered in Tokushima, Japan. Specializes in the manufacturing and distribution of phosphors, including light-emitting diodes (LEDs), battery materials, and calcium chloride.

Light Emitting Diode - InGan LED NICHIA

Light Emitting Diode - InGan LED NICHIA

Nichia 219 white LED offers typical 140 lumen output at 1 W input power with 5,000 K color temperature. Using a uniformly phosphor coated chip, Nichia 219 has the industry leading source brightness and tightest optical footprint.

High Power Point Source White Led NVSx219AWe rolled out a better idea

The spatial color uniformity is also optimized with Nichia’s leading phosphor technology. At 350 mA drive current, the typical forward voltage is only 3.0 V. Additionally, this package is capable of drive currents up to 1.5 A.

Wednesday, April 15, 2015

High Voltage Insulation Tester - KYORITSU

This Tester has a wide range of Test Voltage 500V to 5000V and IR of 1000GΩ or 1TΩ. A Large digital display with Analog Like Bar Graph indication with back light. 3125 from KYORITSU is equipped with an Auto-discharge function and Voltage output warning function, useful when testing Plastic HV Caps.

High Voltage Insulation Tester - KYORITSU

High Voltage Insulation Tester - KYORITSU

Other Features Include -
  • Polarization Index measurement (PI).
  • Timer measurement function.
  • Indication of Output voltage and Discharge voltage.
  • Safety standard IEC 61010-1 CAT.III 600V
  • 1.3mA approx is the Short Circuit Current
KYORITSU ELECTRICAL INSTRUMENTS WORKS, LTD.
2-5-20, Nakane Meguro-ku, Tokyo, 152-0031 Japan

Wednesday, April 8, 2015

Z-Power LED - Seoul Semiconductor

Designed with Seoul Semiconductor's own phosphor and packaging technology. The P4 emits 240 lm at 1A. Luminous efficacy of 100 lm/W @ 350 mA at the maximum, with only a single die. Z-Power series is designed for high current operation and high flux output applications.

Z-Power LED - Seoul Semiconductor

Z-Power LED's thermal management perform exceeds other power LED solutions. It incorporates state of the art SMD design and Thermal emission material. Z Power LED is ideal light sources for general illumination applications, custom designed solutions, automotive large LCD backlights.

Z-Power LED - Seoul Semiconductor

Z-POWER LED Series Electrical Drive Management - PDF

" Why constant current?  - LED is the component that allows current through itself according to input voltage. In other words, it is close to voltage control component. General LED, especially Z-POWER LED must be driven by constant current. There are two main reasons. Firstly, LED is an optical device. How much luminous flux we can get from LED is very important. Generally luminous flux is closely related to driving current. It is easy to recognize and control optical characteristics by current constant. Secondly, LED is more sensitive to voltage than current."

Seoul Semiconductor Co., Ltd is a Korean company manufacturing LED devices. The company is producing LED packages in two plants in Ansan, Korea.

Seoul Semiconductor Co. Ltd.
1B-25, 727, Wonsi-dong, Danwon-gu, Ansan-city, Gyeonggi-do, Korea 425-851