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QME48T40050 DC-DC Converter Data Sheet
36-75 VDC Input; 5.0 VDC @ 40 A Output
Physical Information
Pad/Pin Connections
Pad/Pin #
1
2
3
Function
Vin (+)
ON/OFF
Vin (-)
1
8
4
Vout (-)
2
3
TOP VIEW
7
6
5
4
5
6
7
SENSE(-)
TRIM
SENSE(+)
8
Vout (+)
QME48T Platform Notes
SIDE VIEW
QME48T Pinout (Through-hole)
?
?
?
?
?
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 & Finish: Brass Alloy 360
with Matte Tin over Nickel
Converter Weight: 1.22 oz [34.98 g]
Height
Option
G
HT
(Max. Height)
+0.000 [+0.00]
-0.044 [-1.12]
0.445 [11.3]
CL
(Min. Clearance)
+0.016 [+0.41]
-0.000 [- 0.00]
0.035 [0.89]
Pin
Option
A
PL
Pin Length
±0.005 [±0.13]
0.188 [4.78]
B
Converter Part Numbering/Ordering Information
0.145 [3.68]
Product
Series
Input
Voltage
Mounting
Scheme
Rated
Load
Current
Output
Voltage
ON/OFF
Logic
Maximum
Height
[HT]
Pin
Length
[PL]
Special
Features
Environmental
QME
48
T
40
050
-
N
G
B
0
No Suffix ?
Quarter-
Brick
Format
36-75 V
T ?
Through-
hole
40 A
050 ? 5.0 V
N ?
Negative
P ?
Positive
Through
hole
G ? 0.445”
Through
hole
A ? 0.188”
B ? 0.145”
0 ? STD
L ?
Latching
Option
RoHS
lead-solder-
exempt
compliant
G ? RoHS
compliant for all
six substances
The example above describes P/N QME48T40050-NGB0: 36-75 V input, through-hole mounting, 40 A @ 5.0 V output, negative ON/OFF
logic, a maximum height of 0.445”, a through the board pin length of 0.145”, standard (non-latching), and Eutectic Tin/Lead solder. Please
consult factory for the complete list of available options.
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-00371 Rev 2, 22-May-09
Page 13 of 13
www.power-one.com
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