Benefiting from the latest power switching technologies, the LHA30-50-75-100F power supplies have a typical efficiency of up to 90% in the high-end range and 86% in the low-end range. In addition to increased efficiency, thanks to the use of partial resonance technology, noise and ripple levels have also been reduced. Designed for use in a wide range of applications, the LHA30-50-75-100F offers a broad operating temperature range of -10 to +70 degrees Celsius.
Based on its predecessor, the LFA series, the LHA series has been designed to simplify the choice for system designers when selecting power supplies for demanding applications. From the 30W LHA30F to the 300W LHA300F, the entire family is UL/EN 62368-1 certified and ready to power the latest industrial applications requiring the highest level of quality and safety.
Designed for worldwide applications, the LHA30-50-75-100F power supplies have an input voltage range of 85VAC to 264VAC single-phase and meet safety standards for the 100-240VAC (50/60Hz) input voltage range.
The 30W LHA30F is available in five output voltages: 3.3V, 5V, 12V, 15V, and 24V. Designed for a wide range of applications, the LHA50-75F is available in seven output voltages: 3.3, 5, 12, 15, 24, 36, and 48V, while the LHA100F comes in six: 5, 12, 15, 24, and 48V. Standard products are shipped with a factory-set output voltage, although the LHA30-50-75-100F can be ordered with a built-in potentiometer that allows the voltage to be adjusted up and down (Y option).
In addition to its optimized switching topology, which delivers up to 90% energy efficiency, the LHA30-50-75-100F automatically switches to a power-saving mode using intermittent pulse modulation to reduce energy consumption when the unit is operating under light loads or in standby mode. This contributes to both high performance and reliability. The power supplies include inrush current protection, overcurrent protection with automatic recovery when the default setting is removed, and overvoltage protection.
The units can be mounted in any orientation, although power reduction may apply depending on the ambient temperature and environment.
In noise testing, the LHA30-50-75-100F power supplies met FCC-B, VCCI-B, CISPR11-B, CISPR32-B, EN55011-B, and EN55032-B standards. To further enhance acoustic performance, COSEL offers EAC-03-472 type EMI/EMC filters.
The units have an isolation voltage of 3,000VAC input to output, 2,000VAC input to ground, and 500VAC output to ground.
Designed for use in demanding applications where space is limited, the LHA30F measures 50 x 27 x 87.5 mm (1.97 x 1.07 x 3.44 inches) and weighs a maximum of 100g. The LHA50F measures 50 x 27 x 112 mm (1.97 x 1.07 x 4.41 inches) and weighs a maximum of 140g. The LHA75F measures 50 x 27 x 150 mm (1.97 x 1.07 x 5.91 inches) and weighs a maximum of 190g, and finally, the LHA100F measures 62 x 27 x 155 mm (2.44 x 1.07 x 6.10 inches) and weighs a maximum of 250g.
Additional options are available for specific applications: option-C for an additional coating to improve moisture resistance, option-G for lower leakage current (0.15 mA max.), option-J4 for input and output EP connectors, and option-Y for an output voltage potentiometer.
The LHA30-50-75-100F power supplies are suitable for a wide range of applications, including measurement and analysis equipment, machine tools and industrial robots, display equipment, and semiconductor manufacturing equipment.
For higher power ratings and applications requiring EN62477-1 (OVC III) certification, the LHA150F and LHA300F models are also available.
These power supplies comply with the RoHS Directive and are CE marked in accordance with the Low Voltage Directive.
