DDP LED Lamps Designed to Eliminate Leakage Current
El Segundo,CA - May 30, 2006
DDP, a leader in engineered LED solutions, has developed a series of lamp-based LEDs that feature built-in shunt resistors to reduce unwanted illumination caused by leakage current. Well-suited for industrial environments, power generation, transmission, and distribution applications, the LS Series is designed to be a direct replacement for incandescent bulbs. LS Series lamps offer upwards of 100,000-hour life, shock and vibration resistance, low heat, and low power consumption.
According to Toniolo, there are several potential sources of leakage current in a typical circuit, including transient voltage from a relay or discharge from a capacitor. Certain programmable logic controllers (PLCs) may supply up to 5mA of leakage current in the 'off' state. Because LEDs are so efficient, a current as low as 0.25mA can cause an LED to illuminate. The LS Series lamps incorporate parallel shunt resistors to bleed off residual current in the circuit that could otherwise cause a false ‘on’ indication.
DDP incandescent light replacement solutions are available in either standard or custom assemblies. Pricing for a standard 9mm MB LED lamp starts at $11.00. Samples are available from DDP with a lead-time of stock to one week.
For more information about DDP engineered LED solutions contact DDP at 445 South Douglas Street, El Segundo, CA 90245, visit www.datadisplay.com, or call 800-421-6815.
