Product # SQ60120QEx25

Phone 1-888-567-9596

www.synqor.com

Doc.# 005-0006429 Rev. F

10/16/2015

Page 1

Technical

Specification

SQ60120QEx25

Contents

®

Operational Features

• High efficiency, 96% at full rated load current

• Delivers 25A (300W) power with minimal derating

- no heatsink required

• Operating input voltage range: 35-75Vdc

• Fixed frequency switching provides predictable EMI

• No minimum load requirement

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

SQ60120QEx25 Model

Control Features

• On/Off control referenced to input side

Mechanical Features

• Industry standard pin-out configuration

• Standard Size Open Frame:1.45 x 2.30" (36.8 x 58.4mm)

• Total Open Frame height only 0.417” (10.59mm),

permits better airflow and smaller card pitch

• Open Frame Weight: 1.5 oz. (42g)

• Flanged pins designed to permit surface mount soldering

(avoid wave solder) using FPiP technique

The SQ60120QEx25 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).

Safety Features

• UL 60950-1/R2011-12

• EN60950-1/A2:2013

• CAN/CSA-C22.2 No. 60950-1/A1:2011

35-75V

100V

12Vout

300W

2250V dc

Quarter-brick

Continuous Input Transient Input Semi-Regulated Max Power

Isolation

DC-DC Converter

Page No.

Open Frame Mechanical Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Baseplated Mechanical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Electrical Characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Standards & Qualifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Application Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14