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SQE48T40018 DC-DC Converter
36-75 VDC Input; 1.8 VDC @ 40 A Output
Data Sheet
Physical Information
SQE48T Pinout (Through-hole)
Pad/Pin Connections
Pad/Pin #
1
Function
Vin (+)
1
8
7
2
ON/OFF
2
3
TOP VIEW
6
5
4
3
4
Vin (-)
Vout (-)
5
SENSE(-)
SIDE VIEW
6
7
8
TRIM
SENSE(+)
Vout (+)
SQE48T Platform Notes
Height
Option
D
HT
(Max. Height)
+0.000 [+0.00]
-0.038 [- 0.97]
0.374 [9.5]
CL
(Min. Clearance)
+0.016 [+0.41]
-0.000 [- 0.00]
0.045 [1.14]
Pin
Option
A
B
PL
Pin Length
±0.005 [±0.13]
0.188 [4.78]
0.145 [3.68]
?
?
?
?
?
All dimensions are in inches [mm]
Pins 1-3 and 5-7 are ? 0.040” [1.02]
with ? 0.078” [1.98] shoulder
Pins 4 and 8 are ? 0.062” [1.57]
without shoulder
Pin Material: Brass Alloy 360
Pin Finish: Tin over Nickel
Converter Part Numbering/Ordering Information
Product
Series
Input
Voltage
Mounting
Scheme
Rated
Current
Output
Voltage
ON/OFF
Logic
Maximum Pin Length
Height [HT] [PL]
Special
Features
RoHS
SQE
One-
Eighth
Brick
Format
48
36-75 V
T
T ?
Through-
hole
40
40 ?
40 ADC
018
018 ?
1.8 V
-
N
N ?
Negative
P ?
Positive
D
D ? 0.374”
A
Through
hole
A ? 0.188”
B ? 0.145”
K
0 ?
2250VDC
isolation, no
CM cap
K ?
1500VDC
isolation, CM
G
No Suffix ?
RoHS
lead-solder-
exemption
compliant
G ? RoHS
cap, and
special OCP
compliant for all
six substances
The example above describes P/N SQE48T40018-NDAKG: 36-75 V input, through-hole, 40A @ 1.8V output, negative ON/OFF logic,
maximum height of 0.374”, 0.188” pins, 1500VDC isolation, common mode capacitor, special OCP, and RoHS compliant for all 6 substances.
C onsult factory for availability of other options .
Notes:
1. 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.
2. 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-01744 Rev 1.1.1, 23-Feb-10
www.power-one.com
Page 13 of 13
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