XP Power has announced the availability of its ECM140 series of compact open frame single-output ac/dc power supplies. Measuring 76.2 x 127 x 33 mm (3 x 5 x 1.3 inches) and offering a high power density of 7.9 Watts per cubic inch, the ECM140 requires just 10 CFM of forced air-cooling to achieve the full 148 W output. The supply includes a 12 V / 0.5 A fan output as standard, removing the need for an additional voltage source to power a fan.
To help compensate for any voltage drop at the output, remote sense is also standard. If convection cooled, the power supply achieves 120 W output. Within the range, five models are available, providing the popular outputs of 12, 15, 18, 24 or 48 Vdc.
The series meets the electrical safety standards of both IEC 60601-1 / EN 60601-1 for medical equipment and IEC 60950-1 / EN 60950-1 for industrial and IT equipment. The series also meets EN 55022 specifications for Class B conducted emissions without the need of additional filtering components. Using a highly efficient resonant topology, the units typically achieve 88% efficiency above 70 W with a very flat efficiency curve. This approach also aids to improve the units' EMI performance.
In addition to the standard version, all models are also available with an options package. The A option includes a 5V standby supply output, power OK and dual polarity inhibit signals. By providing these features as options, the base price of the power supply series is kept competitive. The ECM140 has a three-year warranty and is available now from stock and also through Farnell.