XP Power Ltd. today announced the EML15 series of 15W single-output ac-dc power supplies suitable for use in medical equipment. Complying with 3rd edition EN60601-1, ES60601-1, CSA-C22.2 No. 60601-1, IEC60601-1 medical safety standards, this extremely compact power supply is believed to be the smallest device at this power rating available in the industry. The supply provides two means of patient protection (MOPP) between primary and secondary. Measuring 2.44 x 1.21 x 0.95 inches (62.0 x 30.7 x 24.4 mm) for the open-frame pcb mount version, the EML15 occupies very little board space and also offers a power density of 5.3 Watts per cubic inch. With its Class II construction no earth connection is required, this being ideal where a reliable ground connection may not be available.
Eight single output models are available in the common nominal output voltages from +3.3 to + 48 Vdc. A peak load capability allows the EML15 to provide 130% of rated output power in order to accommodate short-term high power loads. This approach allows designers to avoid having to specify a higher rated power supply and saves both extra cost and board space.
In addition to an open frame PCB mounting format other optional mounting packages are available, these include open frame chassis mount with connectors, and encapsulated models with either PCB mounting or screw terminals. A DIN rail mounting clip is also available for use with the encapsulated screw terminal package option.
The EML15 series is convection cooled and able to operate in most environments with a wide temperature range of 25 degrees C to +70 degrees C. Derating is applied above +50 degrees C. No forced air flow or additional heat sinking is required. The series meets the limits for Class B conducted and radiated EMC specifications of EN55022 without the need for any additional external filtering components. The EML15 series is priced at $23.40 for 500 pcs orders. They are available from Newark or direct from XP Power and come with a 3 year warranty.