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SQM48T/S20 DC-DC Converter Data Sheet
36-75 VDC Input; 1.2-3.3 VDC @ 20A Outputs
Converter Part Numbering Ordering Information
Product
Series
Input
Voltage
Mounting
Scheme
Rated
Load
Current
Output
Voltage
ON/OFF
Logic
Maximum
Height [HT]
Pin
Length [PL]
Special
Features
RoHS
SQM
48
S
20
018
-
N
B
A
0
1/8
th
Brick
Format
36-75 V
S ?
Surface
Mount
20A
012 ? 1.2V
015 ? 1.5V
018 ? 1.8V
020 ? 2.0V
025 ? 2.5V
033 ? 3.3V
N ?
Negative
P ?
Positive
SMT
S ? 0.295”
SMT
0 ? 0.00”
0 ? STD
T ?
Alternative
Trim
Option
(For 1.2V)
No Suffix ?
RoHS
lead-solder-
exemption
compliant
G ? RoHS
compliant
for all six
substances
Product
Series
Input
Voltage
Mounting
Scheme
Rated
Load
Current
Output
Voltage
ON/OFF
Logic
Maximum
Height [HT]
Pin
Length [PL]
Special
Features
RoHS
SQM
48
T
20
018
-
N
B
A
0
1/8
th
Brick
Format
36-75 V
T ?
Through-
hole
20A
012 ? 1.2V
015 ? 1.5V
018 ? 1.8V
020 ? 2.0V
025 ? 2.5V
033 ? 3.3V
N ?
Negative
P ?
Positive
Through hole
A ? 0.325”
B ? 0.358”
C ? 0.522”
D ? 0.422”
E ? 0.304”
Through hole
A ? 0.188”
B ? 0.145”
C ? 0.110”
0 ? STD
T ?
Alternative
Trim
Option
(For 1.2V)
No Suffix ?
RoHS
lead-solder-
exemption
compliant
G ? RoHS
compliant
for all six
substances
The example above describes P/N SQM48T20018-NBA0: 36-75 V input, through-hole mounting, 20 A @ 1.8 V output, negative ON/OFF logic, a
maximum height of 0.358”, a through the board pin length of 0.188”, and RoHS lead-solder-exemption compliancy.
Model numbers highlighted in yellow or shaded are not recommended for new designs.
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.
MCD10208 Rev. 1.0, 08-Jul-10
Page 33 of 33
www.power-one.com
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