Q48T30020 DC-DC Converter Data Sheet

Category: Electronics, Other Semiconductors, Powerone

Overview of Q48T30020 DC-DC Converter

Power-One introduces the Q48T30020 DC-DC Converter, which is a state-of-the-art, through-hole mounted quarter brick converter. The converter stands out in the industry for its advanced efficiency, thermal performance, and low-profile design. Mainly suited for telecommunications, the device’s thermal capabilities surpass those of other quarter brick models and rival half-brick converters. Its design minimizes airflow shadowing which aids in the cooling of downstream components. Assembling with 100% surface-mount technologies, Power-One leverages advanced electrical and thermal circuitry resulting in a highly reliable product.

Key Features

Up to 30 Amps output current capability
Outstanding efficiency rates, peaking at 85% for 30 A and 86.5% for 15 A
Ability to start-up with a pre-biased output and no minimum load
Eliminates the need for a heat sink
Compact footprint measuring 1.45″ x 2.30″, and a low profile of 0.28″ (7.2mm)
Standard pinout matching industry norms
Basic insulation meeting EN60950 requirements
Endurance against 100 V input transients for 100 ms
On-board LC input filter and fixed-frequency operation
Protection features including remote output sense and output voltage trim (+10%/-20%)
Utility in both positive and negative logic ON/OFF operations

Performance and Quality

The Q48T30020 converter is designed with high reliability, demonstrated by a calculated MTBF (Mean Time Between Failures) of 2.6 million hours per Telcordia TR-332 standards. It is UL 60950 recognized in the U.S. & Canada and certified per IEC/EN 60950 standards by DEMKO. Additionally, it meets the FCC Class B and EN55022 Class B emissions standards with the help of an external filter. All materials used in the Q48T30020 converter are UL94, V-0 rated for flammability.

Applications

The converter is suitable for a wide range of applications including telecommunications, data communications, wireless networks, and server infrastructure.

Environmental Compliance

The product is also RoHS compliant, catering to the environmental standards related to the restriction of the use of certain hazardous substances in electrical and electronic equipment.

Load Current versus Ambient Air Temperature and Airflow Rates

The datasheet provides a graph (Fig. 1) that illustrates the available load current as a function of the ambient air temperature and airflow rates. This graph is essential for understanding the performance of the Q48T30020 under different cooling conditions, ensuring the converter operates within safe temperature limits.