Marl extends Ledman range of light-emitting diodes

The latest additions to the company's Ledman range, manufactured in China, achieve high reliability and lumen maintenance figures better than 50ppm failures and five per cent luminance degradation after up to 6,000 hours of testing.

An electronic catalogue is available on request.

The 1W and 3W high-intensity white LEDs are delivered in thermally efficient surface-mount packages and generate up to 110 lumens.

The devices have wide viewing angles of 135deg and are available in pure-white and warm-white colour variants.

Marl's Ledman white LED portfolio also includes the 3528 and 5050 series in the industry-standard plastic leaded chip carrier (PLCC) surface-mount package offering pure- and warm-white colours.

The seven-lumen 3528 series and the 18-lumen 5050 series benefit from high thermal efficiency and wide viewing angles of 120deg, smooth beam patterns and high anti-ESD performance.

A series of eight high-performance through-hole LEDs spanning 7,800K to 2,850K colour temperatures (pure white to warm white) completes the company's Ledman range of white LEDs.

The 3528 series of RGB LEDs is also new, and comes in leadless surface-mount packages compatible with automated assembly.

The small, low-profile devices can be used in space-constrained applications such as slim display cabinets.

By achieving excellent heat dissipation, vibration resistance and stability, these devices are claimed to match or improve on the performance of comparable alternative devices and deliver a good price-performance proposition.

Ledman LEDs are manufactured at ISO9001:2000- and ISO14001:2004-approved facilities in Shenzhen, China.