MCOTS-B-270-31-FT

DC-DC Converter

230-400 V

31 V

65 A

4250 Vdc

Full-brick

Input

Output

Current

Isolation

DC-DC Converter

Product Details

The MCOTS-B-270-31-FT 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 MCOTS series provides an isolated step down voltage from 270 V to 31 V intermediate bus with no regulation in a standard full-brick module. MCOTS-B-270-31-FT converter is ideal for creating the mid-bus voltage required to drive standard 31 V DC-DC isolated converters.

Operational Features

• High efficiency, 96.8% at full rated load current
• Delivers 65 A full power with minimal derating
• Operating input voltage range: 230-400 V
• Fixed frequency switching provides predictable EMI
• No minimum load requirement

Mechanical Features

• Industry standard full-brick size:
2.486” x 4.686” x 0.512" (63.14 x 119.02 x 13.00 mm)
• Total Encased weight: 10.2 oz (289 g)

Specification Compliance Features

MCOTS series converters (with an MCOTS filter) are
designed to meet:
•MIL-HDBK-704 (A-F)
•MIL-STD-461 (C, D, E, F)

Control Features

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

Safety Features

• 4250 Vdc, 100 MΩ input-to-output isolation
• (see Standards and Qualifications page)

Protection Features

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