SQ60120ETx20 DC-DC Converter

35-75 V

100 V

12 V

240 W

2250 V dc


Continuous Input

Transient Input


Max Power


DC-DC Converter

Product Details

The BusQor® SQ60120ETA20 bus converter is a nextgeneration, 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

• Ultra-high efficiency, 94% at full rated load current
• Delivers 20A (240W) power with minimal derating - no heatsink required
• Wide input voltage range: 35-75Vdc with 100V 100ms input voltage transient capability
• Fixed frequency switching provides predictable EMI

Mechanical Features

• Industry standard eighth-brick pin-out configuration
• Size: 0.90” x 2.3” (22.9x58.4mm), 0.498” (12.65mm)
• Total weight: 1.25 oz (35 g)

Control Features

• On/Off control referenced to input side
• Inherent current share (by droop method) for high current and parallel applications.

Safety Features

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

Protection Features

• Input under-voltage lockout and over-voltage shutdown protects against abnormal input voltages
• Output current limit and short circuit protection
• Output over-voltage protection
• Thermal shutdown