QM48T14120-NDB0G POWER ONE, QM48T14120-NDB0G Datasheet - Page 20

• Manufacturer Part Number: QM48T14120-NDB0G
• Description: DC/DC Converters & Regulators
• Manufacturer: POWER ONE
• Type: Step Downr

Specifications of QM48T14120-NDB0G

• Output Power: 168W
• Output Current: 14A
• Input Voltage: 48V
• Output Voltage: 12V
• Screening Level: Industrial
• Product Length (mm): 36.83mm
• Product Height (mm): 7.08mm
• Product Depth (mm): 58.42mm
• Mounting Style: Through Hole
• Pin Count: 8
• Number Of Outputs: 1
• Package / Case: Quarter-Brick
• Product: Isolated
• Input Voltage Range: 36 V to 75 V
• Input Voltage (nominal): 48 V
• Output Voltage (channel 1): 12 V
• Output Current (channel 1): 14 A
• Isolation Voltage: 2000 V
• Package / Case Size: Quarter Brick
• Lead Free Status / RoHS Status: Compliant
• Lead Free Status / RoHS Status: Compliant

The example above describes P/N QM48S14120-NS00: 36-75 V input, surface-mount, 14 A @ 12 V output, negative ON/OFF logic, a
maximum height of 0.295”, standard (non-paralleling), and Eutectic Tin/Lead solder. Please consult factory for the complete list of available
options.
Product
Quarter-
Converter Part Numbering/Ordering Information
NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical
components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written
consent of the respective divisional president of Power-One, Inc.
TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on
the date manufactured. Specifications are subject to change without notice.
ZD-00376 Rev. 1.1.1, 19-Feb-10
Format
Series
Brick
QM
Voltage
36-75 V
Input
48
Mounting
Through-
Scheme
Surface-
mount
S 
hole
T
T
Current
Rated
Load
14 A
14
120  12 V
Voltage
Output
120
QM48T/S14120 DC-DC Converter Data Sheet
Page 20 of 20
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36-75 VDC Input; 12 VDC @ 14 A Output
Negative
ON/OFF
Positive
Logic
P 
N 
N
Height [HT]
S  0.295”
A  0.325”
B  0.358”
D  0.422”
Maximum
Through
Surface
Mount
hole
S
C  0.110”
A  0.188”
B  0.145”
0  0.00”
Through
Surface
Length
Mount
[PL]
hole
Pin
0
P  Droop
Paralleling
Features
0  STD
Special
Option
0
www.power-one.com
Compliant for all
Environmental
six substances
No Suffix 
lead-solder-
G  RoHS
exemption
compliant
RoHS