Q48T25033 DC-DC Converter Data Sheet

Category: Electronics, Other Semiconductors, Powerone

The Q48T25033 DC-DC Converter is a through-hole mounted device renowned for its exceptional performance in a standard quarter brick form. It is specifically engineered using proprietary circuitry and packaging techniques to enhance efficiency, thermal management, and to possess a remarkably low profile. Especially advantageous for telecommunications use, the Q48T25033 outperforms all quarter brick converters and rivals half-brick converters in terms of thermal efficiency.

Key Features:

Offering a high output of up to 25 A, this converter facilitates greater current capability even at higher temperatures around 70°C.
It boasts a high efficiency rate of 88.5% for loads of 25 A and 12.5 A.
The Q48T25033 is capable of starting up with a pre-biased output and isn’t burdened by the requirement of a minimum load or an external heat sink.
This low-profile converter measures just 0.28 inches in height and weighs approximately 28 grams.
It adheres to the industry-standard footprint and pinout specifications.
The device meets the Basic Insulation Requirements of EN60950 and is built to withstand input transients of 100 V for up to 100 ms.
It has an integrated LC input filter and operates at a fixed frequency.
Featuring comprehensive protection, remote output sense, and an output voltage trim range of +10%/−20%, it is designed for exceptional reliability with an MTBF (Mean Time Between Failures) of 2.6 million hours as per Telcordia standards.
The converter is easily integrated, enabled by either positive or negative logic ON/OFF options, and is UL 60950 recognized in both the U.S. and Canada.
It is designed to meet the conducted emissions requirements of FCC Class B and EN55022 Class B with an external filter and is manufactured from materials that meet UL94, V-0 flammability rating.

Compliance

The Q48T25033 complies with RoHS standards, using lead-free solder while offering lead-solder-exempted products. It demonstrates adherence to multiple regulatory and safety standards, ensuring high quality and reliability for its users.

Applications:

Telecommunications
Data Communications
Wireless Networks
Servers

Figure 1 on the datasheet presents the available load current against ambient air temperature and airflow rates. The chart illustrates the performance of the Q48T25033 converter under various thermal conditions, assuming it’s mounted vertically with airflow direction from pin 3 to pin 1. The thermal thresholds ensure MOSFET temperatures remain below 120°C at an input voltage of 54 V.

This datasheet was revised as recently as November 20, 2006, and it is to be noted that this information is an extract from the first two pages of a 14-page document. Full specifications and operational details are likely contained within the complete datasheet available at Power-One’s website.