SQ60120HZx50 DC-DC Converter


100 V

12 V


2250 V dc


Continuous Input

Transient Input


Max Power


DC-DC Converter

Product Details

The SQ60120HZx50 bus converter is a next generation,
board-mountable, isolated, fixed switching
frequency dc/dc converter that uses synchronous
rectification to achieve extremely high conversion
efficiency. The power dissipated by the converter is
so low that a heatsink is not required, which saves
cost, weight, height, and application effort. The SQ
BusQor® series provides an isolated step down voltage
from 48V to a semi-regulated 12V intermediate bus.
BusQor converters are ideal for customers who need
multiple outputs and wish to build or buy point of load
converters to work with a 12V rail. RoHS Compliant
(see last page).

Operational Features

• High efficiency, 95% at full rated load current
• Delivers up to 50A of output current (600W) with optional baseplate configuration
• Output droop characteristic allows direct parallel operation
• Operating input voltage range: 35-75Vdc
• Fixed frequency switching provides predictable EMI
• No minimum load requirement

Mechanical Features

• Industry standard pin-out configuration
• Standard size: 2.40" x 2.30" x 0.413" (61 x 5.84 x 10.49 mm)
• Total Open Frame Height premits better airflow & smaller card pitch
• Open frame weight: 2.6 oz. (75g)
• Baseplate weight: 4.3 oz. (123g)
• Flanged pins designed to permit surface mount soldering (avoid wave solder) using FPiP technique

Control Features

• On/Off control referenced to input side (positive and negative logic options are available)

Safety Features

• CAN/CSA C22.2 No. 60950-1
• UL 60950-1
• EN 60950-1

Protection Features

• Input under-voltage lockout disables converter at low Vin conditions
• Output current limit and short circuit protection protects converter and load from permanent damage and hazardous conditions
• Active back bias limit provides smooth startup with external load induced pre-bias
• Thermal shutdown protects from abnormal environmental conditions